Abrégé

Disclosed is a Bayer plant (200) for performing the Bayer process. The Bayer plant (200) includes a superheated steam generator (214) arranged to provide superheated steam as a heat source to one or more stages of the Bayer process, such as on the red side (210) and/or white side (212) of the Bayer plant (200).

Classes IPC  ?

• C22B 21/00 - Obtention de l'aluminium
• C01F 7/0613 - Prétraitement des minéraux, p. ex. broyage
• C01F 7/444 - Appareils à cet effet
• C22B 1/02 - Procédés de grillage
• F22B 1/14 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant de la vapeur entrant en contact direct avec l'eau dans une enceinte ou avec de l'eau en gouttelettes
• F22B 1/26 - Chaudières à vapeur du type à flamme immergée, c.-à-d. où la flamme est entourée par l'eau à vaporiser ou entre en contact avec elle
• F22B 1/28 - Méthodes de production de vapeur caractérisées par le genre de chauffage dans des chaudières chauffées électriquement

Abrégé

A process for preparing high purity alumina from aluminium chloride hexahydrate solids. The process comprises digesting aluminium chloride hexahydrate solids having one or more inorganic impurities in hydrochloric acid to produce an aluminium chloride liquor, precipitating aluminium chloride hexahydrate solids from the liquor in one or more crystallisation stage(s) such that at least some of the inorganic impurities remains in the liquor, separating the precipitated aluminium chloride hexahydrate solids from the liquor to produce a hydrochloric acid process stream comprising the inorganic impurities, processing the separated aluminium chloride hexahydrate solids to form high purity alumina, optionally lowering the concentration of hydrogen chloride in the hydrochloric acid process stream, and removing at least some of the inorganic impurities from the hydrochloric acid process stream to produce a hydrochloric acid recycle stream which is recycled for use as the hydrochloric acid in the digestion step.

Classes IPC  ?

• C01F 7/306 - Décomposition thermique de chlorures hydratés, p. ex. du trichlorure d'aluminium hexahydraté
• C01F 7/56 - Chlorures
• C01F 7/62 - Purification
• C22B 3/10 - Acide chlorhydrique
• C22B 3/44 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés chimiques
• C22B 21/00 - Obtention de l'aluminium

Abrégé

A process for preparing high purity alumina from aluminium-bearing materials is provided. The process digesting an aluminium bearing material to provide an aluminium chloride liquor, a first crystallisation vessel for crystallising aluminium chloride hexahydrate solids from the aluminium chloride liquor, optionally one or more subsequent crystallisation vessels for dissolving and recrystallising the aluminium chloride hexahydrate solids, and thermal treatment means for thermally treating the aluminium chloride hexahydrate solids to provide high purity alumina.

Classes IPC  ?

• C01F 7/306 - Décomposition thermique de chlorures hydratés, p. ex. du trichlorure d'aluminium hexahydraté
• B01D 9/00 - Cristallisation
• C01F 7/62 - Purification

Produits et services

Alumina; Alumina fibre; Alumina trihydrate; Alumina (Aluminium oxide); Aluminium acetate; Aluminium alum; Aluminium chloride; Aluminium compounds; Aluminium halides; Aluminium hydrate; Aluminium silicate; Aluminium salts; Aluminium iodide; Bauxite; Activators to increase rate of chemical reaction; Chemical additives; Chemical additives for use in manufacture; Chemical additives for use in the casting of metals; Chemical additives for use in the moulding of metals; Chemical preparations for aiding water quality; Chemical preparations for forming coatings on metals; Chemical preparations for soil treatment; Chemical preparations for the binding of liquid waste; Chemical preparations for use in foundries; Chemical preparations for use in the manufacture of surface coatings; Chemical preparations for use in water treatment; Chemical products for use in foundry casting and tempering; Chemical products for use in metal processing; Chemical products for use in manufacturing; Chemical products for use in the extraction of minerals; Extraction chemicals; Chemical additives for use in industry; Chemical preparations for use in the metallurgical industry; Chemicals used in industry; Industrial chemicals; Chemical products for use in industry. Aluminium; Aluminium alloys; Aluminium discs; Aluminium doors; Aluminium foil; Aluminium foil paper laminates; Aluminium foils being packaging materials; Aluminium foils being wrapping materials; Aluminium framed modular platforms for use in theatres; Aluminium frames; Aluminium ladder rungs; Aluminium moulds; Aluminium profiles; Aluminium sheets; Aluminium slabs; Aluminium strips; Aluminium windows; Aluminium wire; Bauxite reinforced aluminium; Bauxite reinforced aluminium alloys; Building panels of aluminium; Ceramic reinforced aluminium; Ceramic reinforced aluminium alloys; Coated aluminium; Containers made of aluminium alloys (other than for household use); Extruded aluminium alloys; Extruded aluminium profiles; Extruded aluminium sections; Extrusions of aluminium; Roof flashings of aluminium; Prefabricated aluminium scaffolding frames. Metallurgical processing; Processing of minerals including bauxite; Processing of waste materials; Carbon offsetting services (recycling); Recycling; Recycling of metals; Recycling plants services; Chemical recycling of waste products; Refining; Refining services; Treatment of industrial waste; Metallurgical smelting; Alumina refining; Processing bauxite.

Produits et services

Alumina; alumina fibre; alumina trihydrate; alumina (aluminium oxide); aluminium acetate; aluminium alum; aluminium chloride; aluminium compounds; aluminium halides; aluminium hydrate; aluminium silicate; aluminium salts; aluminium iodide; bauxite; activators to increase rate of chemical reaction; chemical additives; chemical additives for use in manufacture; chemical additives for use in the casting of metals; chemical additives for use in the moulding of metals; chemical preparations for aiding water quality; chemical preparations for forming coatings on metals; chemical preparations for soil treatment; chemical preparations for the binding of liquid waste; chemical preparations for use in foundries; chemical preparations for use in the manufacture of surface coatings; chemical preparations for use in water treatment; chemical products for use in foundry casting and tempering; chemical products for use in metal processing; chemical products for use in manufacturing; chemical products for use in the extraction of minerals; extraction chemicals; chemical additives for use in industry; chemical preparations for use in the metallurgical industry; chemicals used in industry; industrial chemicals; chemical products for use in industry. Aluminium; aluminium alloys; aluminium discs; aluminium doors; aluminium foil; aluminium foil paper laminates; aluminium foils being packaging materials; aluminium foils being wrapping materials; aluminium framed modular platforms for use in theatres; aluminium frames; aluminium ladder rungs; aluminium moulds; aluminium profiles; aluminium sheets; aluminium slabs; aluminium strips; aluminium windows; aluminium wire; bauxite reinforced aluminium; bauxite reinforced aluminium alloys; building panels of aluminium; ceramic reinforced aluminium; ceramic reinforced aluminium alloys; coated aluminium; containers made of aluminium alloys (other than for household use); extruded aluminium alloys; extruded aluminium profiles; extruded aluminium sections; extrusions of aluminium; roof flashings of aluminium; prefabricated aluminium scaffolding frames. Metallurgical processing; processing of materials; processing of waste materials; carbon offsetting services (recycling); recycling; recycling of metals; recycling plants; chemical recycling of waste products; refining; refining services; treatment of industrial waste; metallurgical smelting.

Produits et services

Alumina; alumina trihydrate; alumina  being aluminium oxide; aluminium acetate for industrial purposes; aluminium alum; aluminium chloride; aluminium compounds, namely, aluminium oxide, aluminium nitrate, and aluminium iodide; aluminium halides; aluminium hydrate; aluminium silicate; inorganic salts for industrial purposes, namely, aluminium salts; aluminium iodide; bauxite; activators to increase rate of chemical reaction being catalysts for chemical processes; chemical additives for industrial purposes; chemical additives for use in manufacture of industrial chemicals; chemical additives for use in the casting of metals; chemical additives for use in the moulding of metals; chemical preparations for aiding water quality, namely, chemical preparations for use in drinking water treatment; chemical preparations for forming coatings on metals, namely, industrial chemicals for coating metals; chemical preparations for soil treatment being soil improving preparations; chemical preparations being chemical additives for use as binding agents for the binding of liquid waste; chemical preparations in the nature of industrial chemicals for use in foundries; chemical preparations for use in the manufacture of surface coatings; chemical preparations for use in water treatment; chemical products in the nature of industrial chemicals for use in foundry casting and tempering; chemical products being chemical preparations for use in industry for metal processing; chemical products being chemical preparations for use in general industrial manufacturing; chemical products being industrial chemicals for use in the extraction of minerals; industrial extraction chemicals; chemical additives for use in general industry in the manufacture of a wide variety of goods; chemical preparations for use in the metallurgical industry; chemicals used in industry; industrial chemicals; chemical products being chemical preparations for use in industry Aluminium and its alloys; aluminium alloys; aluminium discs being aluminium in plate form; aluminium doors; aluminium foil; aluminium foil paper laminates being aluminium foil paper; aluminium foils being packaging materials; aluminium foils being wrapping materials; prefabricated aluminium framed modular metal platforms for use in theatres; aluminium frames for buildings, doors, and windows; aluminium ladder rungs being structural parts of metal ladders; aluminium moulds for metal casting; aluminium profiles; aluminium sheets; aluminium slabs; aluminium strips; aluminium windows; aluminium wire; bauxite reinforced aluminium and its alloys; bauxite reinforced aluminium alloys; building panels of aluminium; ceramic reinforced aluminium and its alloys; ceramic reinforced aluminium alloys; coated aluminium and its alloys; containers for storage and transport made of aluminium alloys, other than for household use; extruded aluminium alloys; extruded aluminium profiles; extruded aluminium sections in the nature of aluminium frames for buildings, doors and windows; extrusions of aluminium in the nature of aluminium and frames for buildings, doors and windows; roof flashings of aluminium; prefabricated aluminium scaffolding frames being aluminium scaffolding Metallurgical processing; processing of materials in the nature of metal; processing of waste materials; carbon offsetting services being recycling; recycling; recycling of metals; recycling plants being recycling services; chemical recycling of waste products; refining of metals; refining services for the refining of metals; treatment of industrial waste; metallurgical smelting being metal treatment services

Produits et services

(1) Alumina; alumina fibre; alumina trihydrate; alumina (aluminium oxide); aluminium acetate; aluminium alum; aluminium chloride; aluminium compounds; aluminium halides; aluminium hydrate; aluminium silicate; aluminium salts; aluminium iodide; bauxite; activators to increase rate of chemical reaction; chemical additives; chemical additives for use in manufacture; chemical additives for use in the casting of metals; chemical additives for use in the moulding of metals; chemical preparations for aiding water quality; chemical preparations for forming coatings on metals; chemical preparations for soil treatment; chemical preparations for the binding of liquid waste; chemical preparations for use in foundries; chemical preparations for use in the manufacture of surface coatings; chemical preparations for use in water treatment; chemical products for use in foundry casting and tempering; chemical products for use in metal processing; chemical products for use in manufacturing; chemical products for use in the extraction of minerals; extraction chemicals; chemical additives for use in industry; chemical preparations for use in the metallurgical industry; chemicals used in industry; industrial chemicals; chemical products for use in industry. (2) Aluminium; aluminium alloys; aluminium discs; aluminium doors; aluminium foil; aluminium foil paper laminates; aluminium foils being packaging materials; aluminium foils being wrapping materials; aluminium framed modular platforms for use in theatres; aluminium frames; aluminium ladder rungs; aluminium moulds; aluminium profiles; aluminium sheets; aluminium slabs; aluminium strips; aluminium windows; aluminium wire; bauxite reinforced aluminium; bauxite reinforced aluminium alloys; building panels of aluminium; ceramic reinforced aluminium; ceramic reinforced aluminium alloys; coated aluminium; containers made of aluminium alloys (other than for household use); extruded aluminium alloys; extruded aluminium profiles; extruded aluminium sections; extrusions of aluminium; roof flashings of aluminium; prefabricated aluminium scaffolding frames. (1) Metallurgical processing; processing of materials; processing of waste materials; carbon offsetting services (recycling); recycling; recycling of metals; recycling plants; chemical recycling of waste products; refining; refining services; treatment of industrial waste; metallurgical smelting.

Abrégé

A method for calcination of hydrated alumina, the method comprising the steps of: heating the hydrated alumina in a dehydrating zone to reduce the water content of the hydrated alumina and provide partially calcined alumina; and heating the partially calcined alumina in a calcining zone to provide alumina, wherein the step of heating the hydrated alumina in a dehydrating zone uses at least in part, stored thermal energy, electrical energy, renewable energy or nuclear energy including combinations thereof and the step of heating the partially calcined alumina in a calcining zone uses at least in part, electrical energy or chemical potential energy including combinations thereof, and where the hydrated alumina is heated at least in part with stored thermal energy, the method is alternately operable in a thermal energy charging state and in a thermal energy discharging state.

Classes IPC  ?

• C01F 7/44 - Déshydratation de l’oxyde ou de l'hydroxyde d'aluminium, c.-à-d. toutes les conversions d'une forme en une autre impliquant une perte d’eau

Abrégé

A process for preparing high purity alumina from aluminium-bearing materials is provided. The process digesting an aluminium bearing material to provide an aluminium chloride liquor, a first crystallisation vessel for crystallising aluminium chloride hexahydrate solids from the aluminium chloride liquor, optionally one or more subsequent crystallisation vessels for dissolving and recrystallising the aluminium chloride hexahydrate solids, and thermal treatment means for thermally treating the aluminium chloride hexahydrate solids to provide high purity alumina.

Classes IPC  ?

• C01F 7/22 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium à partir de minerais alumineux à l'aide d'acides ou de sels à l'aide d'halogénures ou d’acides halogénés
• C01F 7/306 - Décomposition thermique de chlorures hydratés, p. ex. du trichlorure d'aluminium hexahydraté
• C01F 7/56 - Chlorures

Abrégé

A process for preparing high purity alumina from aluminium-bearing materials originating from the Bayer process. The process comprising digesting the aluminium-bearing materials with hydrochloric acid to produce an aluminium chloride liquor and acid-insoluble solids and separating said solids from the aluminium chloride liquor, depleting the aluminium chloride liquor of one or more impurities, producing aluminium chloride hexahydrate solids from the produced aluminium chloride liquor, and thermally decomposing the produced aluminium chloride hexahydrate solids to produce high purity alumina.

Classes IPC  ?

• C01F 7/306 - Décomposition thermique de chlorures hydratés, p. ex. du trichlorure d'aluminium hexahydraté
• C01F 7/56 - Chlorures

Abrégé

A method for controlling the carbon output from an alumina refinery, the method comprising the steps of capturing water vapour from a flash train in the refinery, compressing the captured water vapour and utilising at least a portion of the energy in the captured water vapour to heat a process stream within the alumina refinery.

Classes IPC  ?

• B01D 1/00 - Évaporation
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/14 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

A fertilizer composition comprising an ammonium nitrate material and an effective amount of a stabilizer material to result in a specific impulse reduction of at least 10% when compared the specific impulse of a commercially available ammonium nitrate composition. The stabilizer material may comprise huntite or magnesite. In one embodiment, stabilizer material is about 10 to about 25 wt. % of the total fertilizer composition.

Classes IPC  ?

• C05C 1/02 - GranulationPastillageStabilisationColoration
• C05G 3/00 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais

Abrégé

A process for preparing high purity alumina from aluminium-bearing materials originating from the Bayer process. The process comprising digesting the aluminium-bearing materials with hydrochloric acid to produce an aluminium chloride liquor and acid-insoluble solids and separating said solids from the aluminium chloride liquor, depleting the aluminium chloride liquor of one or more impurities, producing aluminium chloride hexahydrate solids from the produced aluminium chloride liquor, and thermally decomposing the produced aluminium chloride hexahydrate solids to produce high purity alumina.

Classes IPC  ?

• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C01F 7/22 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium à partir de minerais alumineux à l'aide d'acides ou de sels à l'aide d'halogénures ou d’acides halogénés
• C01F 7/30 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium par décomposition thermique ou par hydrolyse ou oxydation de composés de l'aluminium
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates
• C01F 7/56 - Chlorures
• C22B 7/02 - Mise en œuvre des cendres folles

Abrégé

A process for preparing high purity alumina from aluminium-bearing materials originating from the Bayer process. The process comprising digesting the aluminium-bearing materials with hydrochloric acid to produce an aluminium chloride liquor and acid-insoluble solids and separating said solids from the aluminium chloride liquor, depleting the aluminium chloride liquor of one or more impurities, producing aluminium chloride hexahydrate solids from the produced aluminium chloride liquor, and thermally decomposing the produced aluminium chloride hexahydrate solids to produce high purity alumina.

Classes IPC  ?

• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 7/02 - Mise en œuvre des cendres folles
• C01F 7/22 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium à partir de minerais alumineux à l'aide d'acides ou de sels à l'aide d'halogénures ou d’acides halogénés
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates
• C01F 7/56 - Chlorures
• C01F 7/30 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium par décomposition thermique ou par hydrolyse ou oxydation de composés de l'aluminium

Abrégé

A fluid sampling device for sampling fluids in a fluid process vessel through a port in a wall of the vessel, the sampling device comprising a flexible tube with an open end in fluid communication with the fluid process vessel, means to attach the sampling device to the process vessel, wherein at least a portion of the flexible tube is adapted to extend into the process vessel, wherein the length of the flexible tube extending into the process vessel is at least 5 times the outer diameter of the flexible tube.

Classes IPC  ?

• F16L 11/04 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles
• G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant

Abrégé

A fertilizer composition comprising an ammonium nitrate material; and an effective amount of a stabilizer material to result in a specific impulse reduction of at least 10 % when compared the specific impulse of a commercially available ammonium nitrate composition; wherein the stabilizer material comprises huntite and wherein the stabilizer material is about 10 to about 25 wt. % of the total fertilizer composition.

Classes IPC  ?

• C05C 1/02 - GranulationPastillageStabilisationColoration
• C05G 3/00 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais

Abrégé

A fertilizer composition comprising an ammonium nitrate material; and an effective amount of a stabilizer material to result in a specific impulse reduction of at least 10 % when compared the specific impulse of a commercially available ammonium nitrate composition; wherein the stabilizer material comprises huntite and wherein the stabilizer material is about 10 to about 25 wt. % of the total fertilizer composition.

Classes IPC  ?

• C05C 1/02 - GranulationPastillageStabilisationColoration
• C05G 3/00 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais

Abrégé

A method for controlling the concentration of impurities in Bayer liquors, the method comprising the steps of adding an oxide and/or a hydroxide of a metal other than aluminium to a Bayer liquor with a desired TA; forming a layered double hydroxide; and incorporating at least one impurity in said layered double hydroxide, wherein the impurities are selected from the group comprising phosphorus, vanadium and silicon.

Classes IPC  ?

• B01J 20/04 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des composés des métaux alcalins, des métaux alcalino-terreux ou du magnésium
• B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de l'oxyde ou de l'hydroxyde d'aluminiumCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques

Abrégé

A method for controlling the concentration of impurities in Bayer liquors, the method comprising the steps of adding an oxide and/or a hydroxide of a metal other than aluminium to a Bayer liquor with a desired TA forming a layered double hydroxide; and incorporating at least one impurity in said layered double hydroxide, wherein the impurities are selected from the group comprising chloride, fluoride, sulfate and TOC.

Classes IPC  ?

• B01J 20/04 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des composés des métaux alcalins, des métaux alcalino-terreux ou du magnésium
• B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de l'oxyde ou de l'hydroxyde d'aluminiumCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques

Abrégé

A method for controlling the concentration of impurities in Bayer liquors, the method comprising the steps of adding an oxide and/or a hydroxide of a metal other than aluminium to a Bayer liquor with a desired TA; forming a layered double hydroxide; and incorporating at least one impurity in said layered double hydroxide, wherein the impurities are selected from the group comprising phosphorus, vanadium and silicon.

Classes IPC  ?

• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer
• B01J 20/04 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des composés des métaux alcalins, des métaux alcalino-terreux ou du magnésium
• B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de l'oxyde ou de l'hydroxyde d'aluminiumCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques

Abrégé

A method for controlling the concentration of impurities in Bayer liquors, the method comprising the steps of adding an oxide and/or a hydroxide of a metal other than aluminium to a Bayer liquor with a desired TA forming a layered double hydroxide; and incorporating at least one impurity in said layered double hydroxide, wherein the impurities are selected from the group comprising chloride, fluoride, sulfate and TOC.

Classes IPC  ?

• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer
• B01J 20/04 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des composés des métaux alcalins, des métaux alcalino-terreux ou du magnésium
• B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de l'oxyde ou de l'hydroxyde d'aluminiumCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques

Abrégé

A fluid sampling device for sampling fluids in a fluid process vessel through a port in a wall of the vessel, the sampling device comprising a flexible tube with an open end in fluid communication with the fluid process vessel, means to attach the sampling device to the process vessel, wherein at least a portion of the flexible tube is adapted to extend into the process vessel, wherein the length of the flexible tube extending into the process vessel is at least 5 times the outer diameter of the flexible tube.

Classes IPC  ?

• G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
• G01N 1/10 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide
• G01N 1/00 - ÉchantillonnagePréparation des éprouvettes pour la recherche

Abrégé

A fluid sampling device for sampling fluids in a fluid process vessel through a port in a wall of the vessel, the sampling device comprising a flexible tube with an open end in fluid communication with the fluid process vessel, means to attach the sampling device to the process vessel, wherein at least a portion of the flexible tube is adapted to extend into the process vessel, wherein the length of the flexible tube extending into the process vessel is at least 5 times the outer diameter of the flexible tube.

Classes IPC  ?

• G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
• G01N 1/00 - ÉchantillonnagePréparation des éprouvettes pour la recherche
• G01N 1/10 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide

Abrégé

An online sampling device comprising: a sampler; an analyser; a delay member; and ancillary equipment, wherein the delay member is downstream from the analyser and is adapted to inhibit exposure of a sample to the ancillary equipment and the ancillary equipment employs a sample removal fluid to remove sample from the device.

Classes IPC  ?

• G01N 1/10 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide
• G01N 1/02 - Dispositifs pour prélever des échantillons

Produits et services

elastomeric shoe insoles

Abrégé

The invention relates to a nut (1) comprising a body (2) comprising a tapped hole (4), a locking ring (11) comprising ramps able to collaborate with mating ramps (9) of the body (2) so as to allow the body (2) to turn with respect to the ring (11) in a first direction of rotation (R1) and so as to prevent the body (2) from turning with respect to the ring (11) in a second direction of rotation (R2), said ring (11) further comprising coupling means (14) intended to couple the ring (11) in rotation with a screw, characterized in that the coupling means comprise a plurality of projecting or recessed members such as teeth (14) for example, which are uniformly distributed about the entire radially internal periphery of the ring (11) and are intended to collaborate with a coupling zone of the screw.

Classes IPC  ?

• F16B 39/282 - Blocage par dispositifs dont les surfaces de travail ont une forme particulière, p. ex. écrous à encoches ou à dents

Abrégé

The present invention relates to a double sheet aluminum panel (1) and a method for manufacture thereof. The double sheet aluminum panel consists of a first layer (2) of a first aluminum material attached to a second layer (4) of a second aluminum material. The first and second layers are attached to each other by means of an adhesive layer (3) disposed between the first and second layers (2, 4). The inventive double sheet aluminum panel is non-flammable.

Classes IPC  ?

• B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
• B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
• B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre
• B32B 37/12 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par l'usage d'adhésifs
• E04B 1/94 - Protection contre d'autres agents indésirables ou dangers contre le feu
• E04F 13/12 - Revêtements ou enduits, p. ex. pour murs ou plafonds constitués d'éléments d'habillage ou de garnissageLeurs bâtisLeurs moyens de fixation constitués de plusieurs éléments d'habillage ou de garnissage semblables en métal

Abrégé

Methods, and related products and compositions, of increasing the stability of a Bayer process liquor are described. A method of increasing the stability of a Bayer process liquor includes contacting the Bayer process liquor with a ppm quantity of a low molecular weight dextran. Also described are methods, and related products and compositions, for controlling the precipitation of aluminum-containing compounds from a Bayer process liquor.

Classes IPC  ?

• C01F 7/00 - Composés de l'aluminium
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/04 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci
• C01F 7/14 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins
• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer

Abrégé

A method for controlling mercury emissions from aqueous alkaline solutions from the Bayer circuit, the method comprising the steps of: introducing a source of copper ions to an aqueous alkaline solution containing sulfide ions; precipitating a copper species; and precipitating a mercury species; thereby facilitating mercury removal from the aqueous alkaline solution.

Classes IPC  ?

• C22B 3/44 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés chimiques
• B01D 53/64 - Métaux lourds ou leurs composés, p. ex. mercure
• C22B 43/00 - Obtention du mercure
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer

Abrégé

A process for the destruction of organics in a Bayer process stream, the process comprising the steps of: a) Passing a volume of a Bayer process stream to a reactor vessel in which is provided a population of a mixed bacterial culture; and b) Retaining that volume of the Bayer process stream in the reactor vessel for a period of time during which at least 10% by mass as carbon of the organic compounds destroyed originate from non-oxalate organic compounds, wherein the mixed bacterial culture comprises a mix of bacterial species capable of destroying organics and which has previously been adapted to the Bayer process stream, or a stream of substantially similar composition, prior to introduction to the reactor vessel.

Classes IPC  ?

• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates
• C02F 3/00 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 3/34 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les micro-organismes utilisés
• C02F 9/14 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement biologique
• C02F 101/30 - Composés organiques
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

Abrégé

Odorant from a process stream is removed by passing the stream (18) to a counter-current contacting device (12) for stripping odorants. The odorants passes from the contacting device (12) as contaminated steam (26) while the remaining process stream passes directly to a “tube side” of a falling film evaporator (14) and is heated producing steam that passes into the counter-current contacting device (12) to strip that process stream and produce the contaminated steam (26). This contaminated steam from the contacting device (12) passes through a vapor compression step (16) from which it is introduced into a “shell side” of the falling film evaporator (14) and in which it heats the process stream passing from the contacting device (12) into the evaporator (14). The contaminated steam that is not condensed in the falling film evaporator passes as a low flow vent gas (50) in which the odorants have been concentrated.

Classes IPC  ?

• B01D 1/22 - Évaporation par amenée d'une pellicule liquide au contact d'une surface chauffée
• B01D 19/00 - Dégazage de liquides
• B01D 1/06 - Évaporateurs à tubes verticaux
• B01D 5/00 - Condensation de vapeursRécupération de solvants volatils par condensation
• B01D 1/28 - Évaporation avec compression de vapeur
• B01D 1/30 - Accessoires pour évaporateurs
• B01D 3/38 - Distillation par entraînement à la vapeur

Abrégé

A method of increasing the stability of a Bayer process liquor, the method comprising at least the step of: contacting the Bayer process liquor with a ppm quantity of a low molecular weight dextran. Also described is a method for controlling the precipitation of aluminium- containing compounds from a Bayer process liquor.

Classes IPC  ?

• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer

Abrégé

The present invention relates to non-combustible composite panels, comprising two outer layers (24) and a core (10, 16). Moreover, the invention provides a method for manufacturing of non-combustible composite panels. The amount of organic ingredients within the core, is reduced insofar as to allow for a heat of combustion adequate to reach non-flammability, whilst providing sufficient flexibility for the composite panel. Magnesium hydroxide is implemented within the core to obtain extraordinary flame retardation. In order to manufacture the inventive composite panels a continuous press (34) is utilised replacing extruders (14) known by the state of the art.

Classes IPC  ?

• B32B 13/04 - Produits stratifiés composés essentiellement d'une substance à prise hydraulique, p. ex. du béton, du plâtre, du ciment, ou d'autres matériaux entrant dans la construction comprenant une telle substance comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• B32B 13/08 - Produits stratifiés composés essentiellement d'une substance à prise hydraulique, p. ex. du béton, du plâtre, du ciment, ou d'autres matériaux entrant dans la construction comprenant une telle substance comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de papier ou de carton
• B32B 15/04 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
• B32B 27/06 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
• C01F 5/14 - Hydroxyde de magnésium
• C04B 14/30 - Oxydes autres que la silice
• C04B 26/02 - Composés macromoléculaires
• C08K 3/22 - OxydesHydroxydes de métaux
• C09K 21/02 - Substances inorganiques

Abrégé

Odorant from a process stream is removed by passing the stream (18) to a counter-current contacting device (12) for stripping odorants. The odorants passes from the contacting device (12) as contaminated steam (26) whilst the remaining process stream passes directly to a "tube side" of a falling film evaporator (14) and is heated producing steam that passes into the counter-current contacting device (12) to strip that process stream and produce the contaminated steam (26). This contaminated steam from the contacting device (12) passes through a vapour compression step (16) from which it is introduced into a "shell side" of the falling film evaporator (14) and in which it heats the process stream passing from the contacting device (12) into the evaporator (14). The contaminated steam that is not condensed in the falling film evaporator passes as a low flow vent gas (50) in which the odorants have been concentrated.

Classes IPC  ?

• B01D 1/06 - Évaporateurs à tubes verticaux
• B01D 1/12 - Évaporateurs à tubes verticaux et circulation forcée
• B01D 1/28 - Évaporation avec compression de vapeur
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• C02F 1/08 - Évaporation en couche mince

Abrégé

Odorant from a process stream is removed by passing the stream (18) to a counter-current contacting device (12) for stripping odorants. The odorants passes from the contacting device (12) as contaminated steam (26) whilst the remaining process stream passes directly to a "tube side" of a falling film evaporator (14) and is heated producing steam that passes into the counter-current contacting device (12) to strip that process stream and produce the contaminated steam (26). This contaminated steam from the contacting device (12) passes through a vapour compression step (16) from which it is introduced into a "shell side" of the falling film evaporator (14) and in which it heats the process stream passing from the contacting device (12) into the evaporator (14). The contaminated steam that is not condensed in the falling film evaporator passes as a low flow vent gas (50) in which the odorants have been concentrated.

Classes IPC  ?

• B01D 1/06 - Évaporateurs à tubes verticaux
• B01D 1/12 - Évaporateurs à tubes verticaux et circulation forcée
• B01D 1/28 - Évaporation avec compression de vapeur
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• C02F 1/08 - Évaporation en couche mince

Abrégé

A drilling apparatus (100) for clearing of a blockage in a tapping point on a pipeline or vessel under pressure. The drilling apparatus (100) may also be used for installation of a tapping point on a pipeline or vessel under pressure. The drilling apparatus (100) comprises a body (11) adapted for connection to the tapping point. The body (11) defines an internal passage (18) through which a drill shaft (41) can be advanced to the tapping point for clearing the blockage therein. The drilling apparatus (100) further comprises a first drive means (51) for rotating the drill shaft (41) to perform a drilling operation and a second drive means (52) for moving the first drive means (51) to cause axial movement of the drill shaft (41). The drilling apparatus (100) further comprises a control means (not shown) operable remotely to selectively control operation of the first drive means (51) and the second drive means (52). The body (11) has provision to allow the drill shaft (41) to penetrate the tapping point while isolating the fluid contents under pressure within the pipeline or vessel.

Classes IPC  ?

• B23B 41/08 - Machines ou dispositifs à aléser ou à percer spécialement adaptés à un travail particulierAccessoires spécialement conçus à cet effet pour aléser, percer ou tarauder des trous dans des tubes sous pression
• B23B 47/20 - EntraînementsTransmissions pour l'avance ou le retour de l'outil ou de la pièce principalement par l'énergie électrique
• F16L 41/04 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet

Abrégé

A method for concentrating spent Bayer process liquor, the method comprising the steps of: Passing at least a portion of a calciner flue gas to a separator to provide a dehydrated gas stream and a water vapour enriched stream Contacting the spent Bayer process liquor with the water vapour enriched stream; and Evaporating water from the spent Bayer process liquor, thereby concentrating the spent Bayer process liquor.

Classes IPC  ?

• B01D 1/00 - Évaporation
• C01F 7/04 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci

Abrégé

A method for precipitating boehmite from a pre-precipitation Bayer liquor, the method comprising the steps of: treating the pre-precipitation liquor to decrease both the total caustic concentration and the total alkalinity of the pre-precipitation liquor; and pre-precipitating boehmite from the treated pre-precipitation liquor, wherein at least a portion of the boehmite is precipitated at a temperature of at least 105 °C.

Classes IPC  ?

• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/14 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins

Abrégé

A method for controlling the precipitation of alumina from a Bayer process solution, the method comprising the steps of: contacting the Bayer process solution with a solid support comprising an extractant, wherein the solid support is substantially water insoluble; removing sodium ions from the Bayer process solution; reducing the concentration of hydroxide ions in the Bayer process solution; and precipitating alumina in the Bayer process solution.

Classes IPC  ?

• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer

Abrégé

A method for controlling the precipitation of alumina from a Bayer process solution, the method comprising the steps of: applying a potential between a first region comprising a Bayer process liquor and a second region comprising a caustic solution, wherein an ion permeable membrane is provided between the first region and the second region; and causing transfer of an ion across the ion permeable membrane from one region to the other region, wherein the Bayer process liquor is not directed to the second region.

Classes IPC  ?

• C01F 7/00 - Composés de l'aluminium

Abrégé

A method for preparing aluminium oxide from a Bayer process solution, the method comprising the steps of: precipitating a first alumina product and providing a first spent liquor; separating at least a portion of the first alumina product and the first spent liquor; treating at least a portion of the first spent liquor to decrease both the total caustic concentration and the total alkalinity of the treated first spent liquor; precipitating a second alumina product from the treated first spent liquor and providing a second spent liquor; separating at least a portion of the second alumina product and the second spent liquor; calcining at least a portion of the first alumina product in a calciner; and calcining at least a portion of the second alumina product in the calciner, wherein the first alumina product is gibbsite or boehmite, or a combination thereof and the second alumina product is gibbsite or boehmite, or a combination thereof.

Classes IPC  ?

• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/34 - Préparation de l'hydroxyde d'aluminium par précipitation à partir de solutions contenant des sels d'aluminium
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates

Abrégé

A method for precipitating boehmite from a Bayer process solution, the method comprising the steps of: treating at least a portion of a first spent liquor to decrease both the total caustic concentration and the total alkalinity of the liquor; combining at least a portion of the treated spent liquor with at least a portion of a green liquor; precipitating boehmite from the combination of the green liquor and the treated spent liquor and producing a second spent liquor; and separating at least a portion of the boehmite and the second spent liquor.

Classes IPC  ?

• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/14 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins

Abrégé

A method for the treatment of contaminants in an aqueous stream, the method comprising the steps of: decreasing the pH of the aqueous stream; passing at least a portion of the aqueous stream through a membrane; separating the aqueous stream into a permeate and a retentate; air stripping of at least a portion of the retentate to reduce the odour of the retentate.

Classes IPC  ?

• C02F 1/20 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dégazage, c.-à-d. par libération des gaz dissous
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 9/02 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout comportant une étape de séparation

Abrégé

A torque reaction mechanism comprising a coupling arrangement (170) operable between an apparatus (10) having a rotary drive input (120) such as a drive socket, and a powered driving tool (160) for delivering rotational torque to the rotary drive input (120). The coupling arrangement (170) acts to transfer reaction torque away from the operator of the powered driving tool (160). The coupling arrangement (170) comprises a first (fixed) coupling element (171) disposed around the rotary drive input (120), and a second (corresponding) coupling element (172) on the powered driving tool 160. The arrangement is such that cooperation between the two coupling elements (171, 172) is adapted to allow displacement therebetween in the direction corresponding to the axis of rotation of the driving tool (160) while constraining the two coupling elements against relative rotation about the axis of rotation. With this arrangement, reaction torque arising from operation of the powered driving tool (160) is transferred through the coupling element (172) on the tool (160) to the respective fixed coupling element (171). In this way, an operator holding the powered driving tool (160) merely has to guide the tool during its operation and does not have to counteract any reaction torque. The first coupling element (171) is configured as a sleeve (175) disposed around the rotary drive input (120). The second coupling element 172 is configured as a block (177) which is rigidly mounted on the body (163) of the driving tool (160) and which is adapted to be received in the sleeve (175) for sliding movement therealong.

Classes IPC  ?

• F16K 31/44 - Moyens mécaniques d'actionnement
• B25B 33/00 - Outils à main non couverts par l'un des groupes de la présente sous-classe
• F16D 3/06 - Accouplements extensibles, c.-à-d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement adaptés à des fonctions particulières spécialement adaptés pour permettre un déplacement axial
• B25B 21/02 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts avec des moyens pour communiquer un choc à la tige du tournevis ou à la douille de la clé à écrou
• B25F 3/00 - Associations d'outils pour différents travaux avec un seul moyen d'entraînement mécanique portatifRaccords appropriés

Abrégé

An operating mechanism (40) for a valve (11) having a valve body (13) defining a valve seat (19) and a valve member (21) moveable into and out of engagement with the valve seat (19). The valve member (21) comprises a valve disc (25), a valve stem (23), and a bush (29) through which the valve stem (23) extends in threaded engagement therewith whereby relative rotation between the bush (29) and the valve stem (23) causes axial displacement of the valve stem (23) relative to the bush (29). The operating mechanism (40) comprises two operating drive sockets (104, 106) in opposed relation, each of which is drivingly connected to the bush (29). The operating mechanism (40) also comprises two unlocking drive sockets (118, 120) in opposed relation, each of which is drivingly connected to the bush (29). The drive ratio between the operating drive sockets (104, 106) and the bush (29), and the drive ratio between the unlocking drive sockets (118, 120) and the bush (29) are different from each other such that a larger torque is delivered to the bush (29) from operation of either one of the unlocking drive sockets (118, 120) in comparison to the torque delivered to the bush (29) from operation of the either one of the operating drive sockets (104, 106) for the same torque input. With this arrangement, either one of the unlocking drive sockets (118, 120) can be used for unlocking the valve; that is, to move the valve member (21) into a 'just open' or throttled position in which the valve disc (25) is out of sealing engagement with the valve seat (19) without rotation of the valve stem (23). Further, either one of the operating drive sockets (104, 106) can be used for opening and closing the valve (11), as well as valve locking. Because there are two operating drive sockets (104, 106) in opposed relation, and also two unlocking drive sockets (118, 120) also in opposed relation, an operator can access the operating mechanism (40) from either side thereof according to what is more convenient.

Classes IPC  ?

• F16K 1/02 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée
• F16K 1/04 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée et dont l'élément de fermeture fait corps avec la tige, p. ex. soupapes principales
• F16K 1/32 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation Détails
• F16K 31/00 - Moyens de fonctionnementDispositifs de retour à la position de repos
• E03B 7/00 - Canalisations principales ou réseaux de distribution
• E03B 9/00 - Procédés ou installations de soutirage d'eau
• E03B 7/02 - Réseaux de canalisations publiques ou autres canalisations maîtresses analogues

Abrégé

A method for the calcination of aluminium trihydroxide, the method comprising the steps of: directly contacting the aluminium trihydroxide with steam; and calcining at least a portion of the aluminium trihydroxide to alumina and/or aluminium oxyhydroxide.

Classes IPC  ?

• C01F 7/44 - Déshydratation de l’oxyde ou de l'hydroxyde d'aluminium, c.-à-d. toutes les conversions d'une forme en une autre impliquant une perte d’eau
• C01F 7/30 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium par décomposition thermique ou par hydrolyse ou oxydation de composés de l'aluminium
• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates

Abrégé

A method for concentrating spent Bayer process liquor, the method comprising the steps of: recovering heat from a Bayer process calciner flue gas; applying at least a portion of the recovered heat to the spent Bayer process liquor; and evaporating water from the spent Bayer process liquor, thereby concentrating the spent Bayer process liquor.

Classes IPC  ?

• B01D 1/00 - Évaporation
• C01F 7/04 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci
• F28D 15/02 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p. ex. tubes caloporteurs

Abrégé

A method for the management of contaminants in an alkaline process circuit, the method including the steps of: adding a source of silica to an alkaline process liquor from the alkaline process circuit; adding a source of alumina to the alkaline process liquor; and forming a geopolymer.

Classes IPC  ?

• C01F 7/34 - Préparation de l'hydroxyde d'aluminium par précipitation à partir de solutions contenant des sels d'aluminium
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates
• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer
• C01B 33/12 - SiliceSes hydrates, p. ex. acide silicique lépidoïque
• C01B 33/14 - Silice colloïdale, p. ex. sous forme de dispersions, gels, sols
• C01B 33/26 - Aluminosilicates
• C01B 33/141 - Préparation d'hydrosols ou de dispersions aqueuses

Abrégé

A wire thread insert (1) for forming a helical thread, comprising a wire (7) wound into a closed coil having an outer surface (9) and an inner surface (11 ), wherein the wire (7) has a first portion (13) defining the inner surface of the thread insert when coiled, said first portion having a cross-section at least substantially in the form of a standard thread, the wire having an opposing second portion (15) defining the outer surface of the thread insert and having a cross-section in the form of a tapered flange with at least one concave face (23).

Classes IPC  ?

• F16B 37/12 - Écrous ou pièces similaires avec entrées de filetage avec surfaces d'entrée de filetage consistant en une insertion de ressorts hélicoïdaux, de disques ou de pièces analoguesÉcrous constitués par des morceaux indépendants de fil métallique enrouléGarnitures filetées intérieures pour trous
• B23G 7/00 - Formage de filets au moyen d'outils semblables à la fois par leur forme et leur mode d'utilisation aux outils de filetage, mais travaillant sans enlèvement de copeaux

Abrégé

A method of reducing the calcia concentration of a green Bayer process liquor containing calcia and phosphate, the method comprising the step of: contacting the green Bayer process liquor with a quantity of apatite; thereby inducing the precipitation of further apatite and reducing the calcia concentration of the green Bayer process liquor.

Classes IPC  ?

• C01F 7/04 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci
• C01F 7/06 - Préparation des aluminates de métaux alcalinsOxyde ou hydroxyde d'aluminium obtenus à partir de ceux-ci par traitement de minéraux alumineux ou de matières premières assimilables à des déchets avec de l'hydroxyde alcalin, p. ex. par lixiviation de la bauxite selon le procédé Bayer
• C01F 7/46 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates

Abrégé

A method for controlling the precipitation of alumina from Bayer process solutions, the method comprising the steps of: contacting the Bayer process solution with a substantially water- immiscible solution comprising an extractant; extracting at least a portion of the metal cations present in the Bayer process solution into the substantially water-immiscible solution; thereby reducing the concentration of hydroxide ions in the Bayer process solution.

Classes IPC  ?

• C01F 7/02 - Oxyde d'aluminiumHydroxyde d'aluminiumAluminates
• C01F 7/34 - Préparation de l'hydroxyde d'aluminium par précipitation à partir de solutions contenant des sels d'aluminium
• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer

Abrégé

A method for the biodegradation of organic compounds in a Bayer circuit, the method including the steps of: treating a portion of the Bayer circuit to provide a pH of between about 8 and about 12 wherein the portion of the Bayer circuit comprises an alkaliphilic microorganism and an electron acceptor and the microorganism is capable of anaerobic respiration in the presence of the electron acceptor, such that at least a portion of the organic compounds are anaerobically degraded by the microorganism.

Classes IPC  ?

• C01F 7/47 - Purification de l'oxyde d'aluminium, de l'hydroxyde d'aluminium ou des aluminates des aluminates, p. ex. l'élimination des composés de Si, Fe, Ga ou des composés organiques des liqueurs issues du procédé Bayer
• C22B 3/18 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés à l'aide de micro-organismes ou d'enzymes, p. ex. de bactéries ou d'algues

Abrégé

A centrifugal pump seal assembly (10) for forming a seal between an impeller (12) and its casing (14), the seal assembly (10) comprising at least one sealing member (20) supported on the casing (14) and being capable of movement to a position at which it sealingly contacts the impeller (14), the movement of the sealing member (20) being actuated by fluid pressure generated at the outlet side (18) of the casing (14), and wherein the seal is maintained by the continual fluid pressure applied to the sealing member (14) when the pump is in use.

Classes IPC  ?

• F16J 15/46 - Joints d'étanchéité par bague de garniture dilatée ou comprimée dans son logement par pression d'un fluide, p. ex. garnitures gonflables
• F01D 11/00 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages
• F04D 29/16 - Joints d'étanchéité entre le côté du refoulement et celui de l'aspiration

Abrégé

Apparatus (10) for use with a valve (11) to perform a grinding operation on the valve. The valve (11) has a valve body (13) defining a valve seat (19) and a valve member (21) moveable into and out of engagement with the valve seat (19). The valve member (21) comprises a valve disc (25) and a valve stem (23). The valve (11) also has a bush (29) through which the valve stem (23) extends in threaded engagement therewith whereby relative rotation between the bush (29) and the valve stem (23) causes axial displacement of the valve stem (23) relative to the bush (29). The apparatus (10) comprises a drive transmission means (55) for providing a driving connection to the bush (29) and the valve stem (23). The drive transmission means (55) has first and second modes of operation, wherein in the first mode of operation the drive transmission means causes the bush (29) to rotate with the valve stem (23) such that the valve stem rotates without undergoing axial movement and wherein in the second mode of operation the drive transmission means (55) causes relative rotation between the bush (29) and the valve stem (23) such that the valve stem undergoes axial movement while rotating. The apparatus (10) has means including hand wheel (245) for selectively causing the drive transmission means (55) to operate in either one of the first and second modes of operation during rotation of the valve stem (23).

Classes IPC  ?

• F16K 29/00 - Dispositions pour le mouvement des corps de soupapes autre que celui d'ouverture ou de fermeture de la soupape, p. ex. pour le rodage, pour empêcher le gommage
• F16K 1/24 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation dont le corps de soupape est initialement soulevé de son siège à l'ouverture et tourne ensuite autour d'un axe parallèle au siège
• F16K 1/50 - Dispositifs empêchant la rotation des corps de soupapes
• F16K 1/02 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée
• F16K 1/32 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation Détails
• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 1/04 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée et dont l'élément de fermeture fait corps avec la tige, p. ex. soupapes principales
• F16K 1/38 - Corps de soupapes de forme conique
• F16K 31/05 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur spécialement conçus pour manœuvrer les soupapes à fonctionnement manuel ou pour la manœuvre conjuguée au moteur et à la main

Abrégé

An operating mechanism (10) for a valve (11). The valve (11) has a valve body (13) defining a valve seat (19) and a valve member (21) moveable into and out of engagement with the valve seat (19). The valve member (21) comprises a valve disc (25) and a valve stem (23). The valve (11) also has a bush (29) through which the valve stem (23) extends in threaded engagement therewith whereby relative rotation between the bush (29) and the valve stem (23) causes axial displacement of the valve stem (23) relative to the bush (29). The apparatus (10) comprises a locking drive input (109) and an unlocking drive input (119), each of which is drivingly connected to the bush (29). The drive ratio between the respective drive inputs (109, 119) and the bush (29) are different from each other such that a larger torque is delivered to the bush (29) from the unlocking drive input (119) in comparison to the torque delivered to the bush (29) from the locking drive input (109) for the same torque input.

Classes IPC  ?

• F16K 29/00 - Dispositions pour le mouvement des corps de soupapes autre que celui d'ouverture ou de fermeture de la soupape, p. ex. pour le rodage, pour empêcher le gommage
• F16K 1/02 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée
• F16K 1/04 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à tige filetée et dont l'élément de fermeture fait corps avec la tige, p. ex. soupapes principales
• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 31/05 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur spécialement conçus pour manœuvrer les soupapes à fonctionnement manuel ou pour la manœuvre conjuguée au moteur et à la main

Produits et services

(1) Pads and cushions for operating room and hospital use, namely wheelchairs, hospital beds, medical examination chairs and tables, operating tables, gurneys and stretchers (2) Hand exercisers made of viscoelastic polymeric material, wheelchair pads and cushions, flotation bedpads, commode seats (3) Pads and cushions for equestrian use. (4) Bassinet pads, visoelastic material for use in manufacturing pads and cushions

Produits et services

(1) Plastic containers and lids for food.

Produits et services

(1) Plastic containers and lids for food.

Produits et services

(1) Medical apparatus, namely table, operating room and bed patient positioning devices and covers therefor, pads, cushions and covers therefor, for use in operating rooms; pads and cushions for medical use, namely for reducing or eliminating skin sores and discomfort experienced by persons confined to beds or chairs; and mattress covers for surgical positioning devices; pads and cushions for operating tables. (2) Contoured seating cushions and pads for wheelchairs; wheelchair cushions. (3) Viscoelastic polymeric material in sheet form and cast shapes for use in manufacture. (4) Pads and cushions for beds and chairs; mattresses and bed pads.

Produits et services

(1) Pads and cushions for use on wheelchairs.

Produits et services

Orthopaedic articles; respiratory apparatus; oxygen concentrators, apparatus for the distribution and storing of liquid oxygen, aerosol therapy apparatus, respiratory apparatus for sleep therapy; apparatus for ventilation of the lungs; supporting apparatus, lifting apparatus, transfer apparatus, hoists, slings and spreaders, all for the physically handicapped, those of reduced mobility and invalids; lifting apparatus and transfer apparatus for the bath, the bed and the toilet for the physically handicapped, those of reduced mobility and invalids; harnesses and belts for the physically handicapped, those of reduced mobility and invalids; beds for medical purposes; adjustable backrests for beds; bedclothes frames; corsetry for medical purposes; mattresses for medical purposes; foam mattresses for medical purposes; cushions for medical purposes; cushions for prevention of bed sores and positioning cushions for the physically handicapped, those of reduced mobility and invalids; walking aids; crutches, walking frames; shower stretchers for the physically handicapped, those of reduced mobility and invalids; rehabilitation, training and play equipment for the physically handicapped, those of reduced mobility and invalids; rehabilitation, training and play equipment in the form of elastic seating for the physically handicapped, those of reduced mobility and invalids; parts and fittings for all of the aforementioned goods. Seating, backrests, cushions; furniture for the physically handicapped, those of reduced mobility and invalids; beds and accessories for beds; home care beds, institutional beds, hospital beds; bed tables; mattresses; foam mattresses, airbeds and waterbeds; bath seats, shower seats, wheeled shower seats, bath supports, toilet supports, lift-out chairs; work seats for the physically handicapped and those of reduced mobility; parts and fittings for all of the aforementioned goods.

Produits et services

wheelchair pads and cushions

Produits et services

wheelchair pads and cushions

Produits et services

medical apparatus, namely, table, operating room, and bed patient positioning devices and covers therefor, pads, cushions and covers therefor, for use in operating rooms; pads and cushions for medical use, namely, for reducing or eliminating skin sores and discomfort experienced by persons confined to beds or chairs; and mattress covers for surgical positioning devices mattress covers and mattress pads

Produits et services

Medical apparatus, namely table, operating room, and bed patient positioning devices and covers therefor, pads, cushions and covers therefor, for use in operating rooms; pads and cushions for medical use, namely, for reducing or eliminating skin sores and discomfort experienced by persons confined to beds or chairs; and mattress covers for surgical positioning devices Wheelchair cushions and covers for wheelchair cushions [ Mattress covers and mattress pads ]

Produits et services

WHEELCHAIR CUSHIONS AND COVERS FOR WHEELCHAIR CUSHIONS

Produits et services

Viscoeleastic polymer pads for use in protecting horses

Produits et services

Viscoelastic polymeric material in sheet form and cast shapes for use in manufacturing protective padding for horses Saddles and protective saddle pads for horses

Produits et services

, foot pads, seating pads, general purpose pads and cushions for medical and therapeutic use; pads and cushions for the head and body for medical, therapeutic, and operating room use; specialty frame pads, namely, pads used in operating rooms; pads and cushions for hospital beds and mattresses; stirrup pads Wheelchair pads and cushions Chair pads and seat cushions Mattress and bed pads

Produits et services

contoured seating cushions and pads for wheelchairs; and wheelchair cushions

Produits et services

ELASTOMERIC RIFLE RECOIL PADS

Produits et services

[ ELASTOMERIC SHOE INSOLES ] ELASTOMERIC HAND EXERCISERS

Produits et services

Viscoelastic Polymeric Material in Sheet Form and Cast Shapes for Use in Manufacture

Produits et services

Pads and/or Cushions for Beds, Chairs, Operating Tables, and Bassinets

Produits et services

Pads and/or Cushions for Beds, Chairs, Operating Tables, and Bassinets

Produits et services

(1) Rolls and laminated sheets of aluminous metal foil for consumer and institutional use.