The invention relates to a method for improving the insulation (concentration) of polymer solutions following polymerisation but prior to shaping, which follows degassing (drying). According to said method, the following steps and the order are adapted to the polymer quality requirements: one or more expansion steps, a separate washing step, a pre-concentration step, coagulation, dewatering and main evaporation. The invention also relates to different methods and to a device for transporting polymer solvent mixtures by means of at least one pump building up a pressure.
In a device for carrying out mechanical, chemical and/or thermal processes in an educt in a housing (3) having working elements (5), such as kneading, mixing, transporting and cleaning elements, on at least one shaft (1, 2), wherein the housing (3) consists of at least two housing shells which form between them an upper and/or a lower saddle (19.1, 19.2), a sensor (20) is intended to be located in at least one saddle (19.2), which sensor detects changes in parameters, particularly pressure and/or temperature, in the region of the saddle (19.2).
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
G01L 1/18 - Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties
In a device for treating a product in a housing having a housing casing (1) and having an inlet and an outlet for the product, at least one shaft (5) having conveying elements for conveying the product in an inner chamber (6) of the housing from the inlet to the outlet being situated in the housing, at least one sample collector (2) is associated with the inner chamber (6).
B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
The invention relates to a method for continuously producing polyacrylonitrile (PAN) by polymerizing the monomer of polyacrylonitrile, acrylonitrile, as a starting material, or in particular for homopolymerizing and copolymerizing dienes, such as butadienes, isoprenes, and piperylenes, into polymers, wherein the monomer is introduced into a kneader mixer through an inlet and, in the kneader mixer, is transported from the inlet to an outlet and polymerized. According to the invention further monomer should be fed to the starting material at one or more points between the inlet and the outlet and the material should be cooled by vaporization of the monomer, wherein the vaporized monomer is condensed and fed back into the kneader mixer.
The invention relates to a method for treating a mixture in a single-shaft or multi-shaft mixer (M), especially a kneader-mixer, especially for preparing a spinning solution. A solvent or solvent mixture is added to the product over the length of a product chamber in order to reduce a viscosity of the solvent or of the mixture and to increase an evaporative capacity. According to the invention, the viscosity of the solution or of the mixture is determined and/or modified in predetermined locations in the product chamber.
The invention relates to a method for the production of halobutyl rubber by copolymerization of isobutyl and isoprene in a solvent to form butyl rubber, wherein the solvent can be non-soluble for a suspension process (for example chloromethane) or be soluble for a solution process (for example, isopentane, pentane, hexane), and the subsequent halogenation of the butyl rubber. According to the invention, at least the halogenation should be carried out using a halogenation agent (8), in particular chlorine or bromine, in a halogenation kneader (7).
The invention relates to a method for producing moulded bodies from a base substance which is mixed with a solvent for producing a moulding solution and subsequently said solvent is removed at least partially from the moulding solution which is then guided to a moulding device. Said moulding solution is guided to a thick layer solvent which is cylindrical or shaped as a figure of eight in the cross section or to a combination consisting of a thin layer evaporator which is cylindrical in the cross section and to a thin layer solvant which is cylindrical or shaped as a figure of eight.
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
C08B 1/00 - Preparatory treatment of cellulose for making derivatives thereof
Device and process for treating products of solution polymerization to give polymer mouldings, comprising an upstream wash stage into which the polymer/product of polymerization is introduced before the treatment; equipment for preliminary concentration (6) comprising one or more containers (75) and optionally return equipment; main evaporation equipment (8), more particularly a first mixing kneader (71.1), and also a system for pressure increase, more particularly a screw structure (72.1) or a pump or a combination of screw structure and pump;equipment for devolatilization (10), more particularly a second mixing kneader (71.2), and also a system for pressure increase, more particularly a screw structure (72.2) or a pump or a combination of screw structure and pump; and also equipment for shaping (13), comprising equipment for comminution, for control of temperature and for packaging, and also preferably equipment for pneumatic transport; preferably also equipment for condensation of the vapours, preferably with downstream vacuum system; equipment for operating, controlling and regulating the entire process.
The invention relates to a method for continuously performing a polymerization of monomers or comonomers, in particular a homopolymerization or copolymerization of dienes, such as butadienes, isoprenes, and piperylenes, into polymers in a reactor (1, 1.1, 1.2), in particular in a kneader mixer, having at least one inlet (2) for the product to be polymerized (feed), which inlet is adjoined by a feed zone (3) in the reactor (1, 1.1, 1.2). According to the invention the prepolymerized product is mixed back into the feed flow in the feed zone (3). The feed zone (3) in which the back-mixing occurs constitutes up to 50% (>0 - 0.5 of the product chamber) of the processing length.
The invention relates to a method for concentrating a polymer solution, particularly a temperature-sensitive polymer solution, wherein the polymer solution is intended to be heated under pressure, particularly under overpressure, up to a temperature below a damage temperature and then depressurised in a flash chamber.
The invention relates to a method for treating in particular viscous, paste-like materials in a housing (1) with kneading elements (2, 3), in which at least one kneading element, (2, 3) is to be monitored.
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
B29B 7/44 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with paddles or arms
B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
In a method for implementing mechanical, chemical and/or thermal processes in a product which is located in a housing (1) with mixing and cleaning elements and/or transporting elements (6) on at least one shaft (4, 5), and is transported via said elements (6) from an inlet (2) to an output (10), the intention is for a cross section of the housing (1) to be adjusted in variable fashion at least once in the longitudinal direction thereof.
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
In a method by which viscous pasty compositions in particular are treated in a housing (1) with kneading elements (2), at least one kneading element (2) is intended to be monitored.
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
B29B 7/44 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with paddles or arms
B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
In a method for handling a product, in particular a viscous, pasty product, with at least one rotating shaft (3, 11) in a product space (5), a driving spindle (11) of the shaft (3) is mounted and sealed outside the product space (5) in a housing consisting of a plurality of parts (7, 8, 12). The sealing is brought about by means of at least two seals (2, 4), wherein a dynamic seal (2) follows an eccentric movement of the shaft (3) and takes on dynamic sealing of the rotating shaft (3), while another seal (4) compensates for an eccentric movement of the shaft (3) in relation to the housing by means of plastic or elastic deformation and therefore prevents a leakage between the housing part (12), which moves eccentrically, and a rigid housing (10). A defined quantity of liquid, which serves as a blocking agent and lubricant for the dynamic seal (2) of the shaft (3) towards the housing part (7), is metered in here, said liquid, apart from a residual excess, being drawn into the dynamic seal (2) by means of a pressure difference therewithin and thereby forming an effective block and seal.
The invention relates to a kneader mixer for treating viscous or pasty products in a product chamber between an inlet and an outlet for the product, wherein at least one kneader shaft (1) having kneading elements (6) arranged thereon is provided in the product chamber, in which kneader mixer the kneader shaft (1) has elevations (7) on the outside (5) of the kneader shaft, onto which elevations the kneading elements (6) are placed.
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Machines for high-viscousity chemical technologies, namely, single and twin shaft kneader reactors and facilities comprised of machines for high-viscosity chemical technologies, namely, single and twin shaft kneader reactors; mixing and kneading machines for the industrial sector, consisting of housings, shafts, kneading elements, kneading counterelements, mixing forks, bearings, drives, input and output apparatus and dust-removing apparatus, being parts for the aforesaid mixing and kneading machines. (1) Technical consultancy, development and engineering in the field of highly viscous technology for industrial products, in particular in the field of heat and substance exchange by means of mixing/kneading machines and installations; design of machines and installations for the industrial sector
17.
DEVICE FOR TRANSPORTING VISCOUS COMPOUNDS AND PASTES
In a device for the controlled transport of viscous compounds and pastes in at least one process space (8) by means of at least one shaft (2), on which transport bars (4) are arranged and which rotates about a shaft axis (A), wherein centre axes (B) of the transport bars (4) run at an angle (7) with respect to the shaft axis (A), the centre axes (B) of transport bars (4.1, 4.2, 4.3) which follow one another in the direction of the shaft axis (A) should run offset in the circumferential direction with respect to one another and with respect to the shaft axis (A).
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
In a method for producing moulded articles from a base substance which is mixed with a solvent to produce a moulding solution, and subsequently this solvent is at least partially removed from the moulding solution and the moulding solution is supplied to a device (8) for moulding, the moulding solution is intended to be supplied to a vertical cylindrical thin-film evaporator (2) and a horizontal cylindrical thick-film dissolver (4).
In the method for performing mechanical, chemical and/or thermal processes in a reactant and/or product in a housing that has at least one feed point, at least one catalyst is mixed into the reactant, as a result of which the product reacts up to a desired degree of conversion. In this process, the reactant is mixed with the catalyst before being introduced into the housing.
Disclosed is a device for carrying out mechanical, chemical, and/or thermal processes in a housing (3), comprising mixing and cleaning elements (5) on at least two shafts (1, 2), said mixing and cleaning elements (5) on the shafts (1, 2) meshing with each other and being equipped with disk elements that include kneading bars. According to the invention, the number of disk elements including kneading bars is adjusted to the speed ratio between the shafts.
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
In a method for the thermal separation of a volatile substance from a non- or less volatile substrate having a phase boundary towards a gas chamber that receives the volatile substance subsequent to vaporisation and/or sublimation, mechanical energy is supplied to the phase boundary between the substrate and the gas chamber to increase the material exchange of the volatile substance. In the process, the material exchange is increased by the addition of an additive or mechanical energy to the surface of the phase transition in such manner that said supplied mechanical energy destroys bubbles containing the volatile substrate, so that the volatile substrate can escape to the gas chamber.
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
In a process for thermal separation of a solution composed of thermoplastic polymer and solvent, in which the solution is heated under pressure above the critical point of the solvent and then decompressed into a vessel (5) so as to form a polymer-rich phase and a low-polymer phase, the polymer-rich phase being supplied to a second vessel (8), a) a pressure jump on entry into the second vessel (8) should lead to a thermal flash in the second vessel (8), the polymer content of the heavy phase rising to at least 70%, especially more than 80%, and b) the resulting polymer-rich solution is supplied - especially distributed over at least a portion of the length of a stirrer shaft - which is within the same vessel space and which heats the polymer composition by mechanical kneading energy with the effect that the polymer content rises to >70%, especially >90%.
In a process for producing a product, more particularly formed articles, from a foundational substance in a device (2) for mixing the foundational substance with a solvent, wherein the foundational substance to produce a formable solution is mixed with the solvent and subsequently this solvent is at least partly removed from the mixture and the formable solution is fed to a device (12) for further processing the product, wherein the formable solution is diluted before further processing, the dilution shall be fed into the device (2) upstream of a discharging device (4) and/or into the discharging device (4).
The invention relates to a method for carrying out polymerisation processes, wherein a (co-)polymerisation of monomer(s) takes place in a first stage and a separation of product and monomers, oligomers, reaction products and additives or solvents takes place in a second stage. Before and/or in the second stage, which is to say during finishing, a substance is to be added to the reaction mixture, by which substance stripping and/or influencing of the temperature is effected, whereby the reaction equilibrium is shifted toward the polymers, wherein the speed of reaction to the monomer is slowed. A second possibility is that before and/or in the second stage, which is to say during finishing, a substance is added to the reaction mixture, by which substance stopping and, as a second function stripping, and/or influencing of the temperature is effected.
In a process for producing a product, in particular moulded bodies, from a base substance in a device (2) for mixing the base substance with a solvent, wherein the base substance for producing a moulding solution is mixed with the solvent and then this solvent is at least partially removed from the mixture and the moulding solution is fed to a device (12) for further processing of the product, the moulding solution being diluted before further processing, the diluent is intended to be fed into the device (2) upstream of a discharge device (4) and/or into the discharge device (4).
Provided is a vacuum devolatilizer for use in a polymer manufacturing or processing plant. The devolatilizer comprises a vacuum chamber having an inlet for a polymer melt, an outlet for a polymer melt, a vacuum port through which volatiles may be removed and a stirrer shaft port for the entry of a stirrer shaft. The stirrer shaft passes through the at least one stirrer shaft port and extends into the vacuum chamber and carries an agitation means. The stirrer shaft seal is associated with each stirrer shaft port for sealing against the stirrer shaft and each stirrer shaft seal has an external portion outside the vacuum chamber. The devolatilizer is provided with a motor located outside of the vacuum chamber for rotating shaft and comprises means for blanketing the external portion of the stirrer shaft seal with a low oxygen content gas or vapor, e.g., nitrogen, helium, steam, or carbon dioxide.
The invention relates to a method for treating a monomer, pre-polymer, polymer or a corresponding mixture, in particular for producing a dope for producing a polymer fibre, in particular a p-aramide fibre, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenised and/or degassed and then discharged, which takes place at least partially in a reactor (7), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor (7) using a force-feed device (4).
In a method for depolymerizing polycaprolactam, the polycaprolactam is provisioned to be fused and applied as a fresh melt to a hot melt made of non-volatile or only partly volatile materials.
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
C07D 201/12 - Preparation of lactams by depolymerising polyamides
29.
A PROCESS AND A DEVICE FOR THE CONTINUOUS TREATMENT OF MIXED SUBSTANCES
In a process for the continuous thermal treatment of mixed substances, especially of solutions, suspensions and emulsions, the continuous treatment of the mixed substances shall be divided into a main vaporization an d a degassing, in which instance the main vaporization and the degassing take place in each case takes place in a separate mixer-kneader.
The invention relates to a method for continuously thermally separating material mixtures, in particular of solutions, suspensions, and emulsions, wherein the continuous processing of the material mixtures is divided into a main vaporization and a degasification, wherein the main vaporization and the degasification each take place in a separate mixing kneader.
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
In a method for operating a load (4) by means of a hydraulic motor (3) that is supplied with fluid by a pump device (20), a drive shaft (12) is to be associated with the pump device (20) and a speed control of a drive shaft for the load (4) is to be carried out by a speed control of the drive shaft (12) and/or the pump device (20) is to have a constant displacement volume per revolution.
F16H 39/02 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motors at a distance from liquid pumps
F16H 61/47 - Automatic regulation in accordance with output requirements for achieving a target output speed
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
F04C 14/08 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
F16H 61/444 - Control of exclusively fluid gearing hydrostatic with more than one pump or motor unit in operation by changing the number of pump or motor units in operation
32.
DEVICES FOR CARRYING OUT MECHANICAL, CHEMICAL AND/OR THERMAL PROCESSES
The invention relates to a device for carrying out mechanical, chemical and/or thermal processes in a housing (3) having mixing and cleaning elements (5) on shafts (1, 2), wherein the mixing and cleaning elements (5) of the shafts (1, 2) engage into each other when rotating about the axes thereof and two mixing and cleaning elements (5) are arranged at least on one shaft (1, 2) consecutively in the axial direction in a 180° rotation-symmetrical manner about the axis (A) of the shaft (1, 2). Each mixing and cleaning element (5) comprises a disc element (6) and the disc element (6) has an outer edge (7) running in a radius (r) in an arch segment of approximately 90° or slightly bigger about the axis (A) of the shaft (1, 2) and wherein side edges (8.1, 8,2) abut on both sides toward the shaft (1, 2), wherein one or more bars (9.1, 9.2) sit on the edge (7).
B01F 7/04 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles or arms
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
B29B 7/20 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
The invention relates to a device for treating a product that can be transported in a housing from an entry point to an exit point, particularly a torr factor for carrying out a roasting process utilizing a hardly flowable product forming nests and having no wall adhesion, wherein chambers are to be formed by disk-shaped elements disposed on a shaft.
F26B 17/28 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve
In a process for continuous acetylation of polysaccharide, a pressure is to be established in a reactor chamber such that a boiling point of a reaction mixture corresponds to a desired reaction temperature and an exothermicity of the reaction is controlled by evaporative cooling.
In a method of treating viscous products, particularly for the implementation of polymerization operations, more particularly for the homopolymerization or copolymerization of biopolymers, where monomer(s) and/or catalysts and/or initiators are fed to a backmixed mixing compound (1), in particular having a length/diameter ratio of 0.5—3.5, more particularly a process corresponding to a stirred tank cascade of 2-5 stirred tanks in series, and the product is supplied with heat and is backmixed with product that has already reacted, and the reacted product is taken off from the mixing compound (1), the product is to be heated in the mixing compound (1) up to its optimum processing temperature or boiling temperature or sublimation temperature, parts of the product are to be evaporated, and hence the exothermic heat of the product and excess mechanical introduction of heat are absorbed by means of evaporative cooling.
The invention relates to a method for the production of molded bodies from a base substance, wherein the base substance is mixed with a solution for producing a molding solution, and said solution subsequently is at least partially removed from the mixture, and the molding solution is fed to a unit for molding, wherein the molding solution is diluted before molding.
The invention relates to a method for producing a spinning solution for producing a polymer fiber, particularly a p-aramid fiber, the polymer being blended with a solvent, mixed, melted, homogenized, and degassed and then discharged, liquid sulfuric acid being used as the solvent and at least the mixing, homogenization, and degassing taking place in a preferably continuously operated single or double cell reactor (1).
In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader (1), especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader (1), the product in the mixing kneader (1) shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
Preparation of isobutene homopolymers with a weight-average molecular weight Mw of from 75 000 to 10 000 000 by polymerizing isobutene or isobutenic monomer mixtures in liquid phase in the presence of one or more Lewis acids as polymerization catalysts and of an inert solvent by performing the polymerization in an apparatus which simultaneously has mixing and conveying properties.
42 - Scientific, technological and industrial services, research and design
Goods & Services
mixing and kneading machines, including component parts thereof engineering and technical consultation services in the field of very viscous chemical technologies for industrial products, particularly in the field of heat exchange and mass transfer by means of mixing/kneading machines and associated installations
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Machines and installations composed of them for very viscous chemical technologies, namely, industrial mixing and kneading machines consisting of casing, shafts, kneading elements, kneading counterelements, mixing forks, bearings, drives, feeding and discharging devices as well as dedusting devices forming part of this mixing and kneading machine. (1) Technical advice, development and engineering in the field of very viscous chemical technologies for industrial products, particularly in the field of heat exchange and mass transfer by means of mixing/kneading machines and associated installations.
