C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
A powdered composition made from porous silica for ceramic welding, in particular by spraying, comprising 10 to 90 % of a phase of porous siliceous particles comprising at least 80 % by weight of cristobalite and at most 15% by weight of tridymite and residual amorphous phase, relative to the total weight of the composition, and 90 to 10 % by weight of conventional additives forming a binder phase, relative to the total weight of said composition, said porous siliceous particles having a d50 of between 200 and 1000 μm, and preferably between 350 and 800μm.
C04B 38/08 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding porous substances
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C01B 33/12 - SilicaHydrates thereof, e.g. lepidoic silicic acid
3.
SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME
A powdered composition made from silica for ceramic welding, in particular by spraying, comprising - 10 to 90 % of a phase of porous siliceous particles comprising at least 80 % by weight of cristobalite and at most 15% by weight of tridymite, relative to the total weight of the composition, - 90 to 10 % by weight of conventional additives forming a binder phase, relative to the total weight of said composition, said siliceous particles having a d50 of between 350 and 800 μm, and preferably between 400 and 500μm.
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
Method of treating a chamber having refractory walls, in which: a treatment composition, comprising at least one organosilicon compound and at least one hydrocarbide, is sprayed into said chamber, in the presence of oxygen; and said sprayed treatment composition is heated, the spraying in the presence of oxygen taking place in the closed chamber in which the treatment composition, in a predominantly liquid state, is atomized in the form of suspended particles, the method further including said at least one organosilicon compound decomposing to form a colloidal silica aerosol in the closed chamber, an overpressure being established therein, and a colloidal silica layer being spread over the refractory walls with, as a result of said overpressure, the colloidal silica penetrating into the microcracks.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
5.
Method and device for spraying a pulverulent material into a carrier gas
Method of spraying a pulverulent material into a carrier gas, comprising the acceleration of the carrier gas under pressure up to a sonic velocity before an expansion enabling the pulverulent material to be entrained, with formation of a constant stream of carrier gas entraining an adjustable predetermined amount of pulverulent materials, and safety device for spraying pulverulent material into a carrier gas.
B05C 5/04 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being supplied to the apparatus in a solid state and melted before application
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 7/30 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the first liquid or other fluent material being fed by gravity, or sucked into the carrying fluid
B05B 7/28 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
B05B 7/12 - Spray pistolsApparatus for discharge designed to control volume of flow, e.g. with adjustable passages
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
6.
Dry mix for treating refractory substrates and process using same
Dry mix for treating refractory substrates, comprising combustible particles of at least one oxidizable substance which, in the presence of oxygen, gives rise to an exothermic reaction, and particles of at least one other substance, wherein these particles form together, during said exothermic reaction, a coherent mass capable of adhering to and/or interacting with the treated substrate, characterized in that it comprises, as particles of at least one other substance, particles of at least one expanding substance, in that the dry mix without the particles of this at least one expanding substance has a first bulk density and in that the mix comprising said at least one expanding substance has a second bulk density lower than said first bulk density.
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
7.
SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME
A powdered composition made from silica for ceramic welding, in particular by spraying, comprising - 10 to 90 % of a phase of porous siliceous particles comprising at least 80 % by weight of cristobalite and at most 15% by weight of tridymite, relative to the total weight of the composition, - 90 to 10 % by weight of conventional additives forming a binder phase, relative to the total weight of said composition, said siliceous particles having a d50 of between 350 and 800 µm, and preferably between 400 and 500µm.
C01B 33/12 - SilicaHydrates thereof, e.g. lepidoic silicic acid
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 35/65 - Reaction sintering of free metal- or free silicon-containing compositions
C04B 35/66 - Monolithic refractories or refractory mortars, including those whether or not containing clay
patents
