Abstract: The invention relates to a thin film evaporator (D) for producing a transfer mixture according to the direct dissolution method, having a feed (1), a housing (4) and an outlet (2), wherein the feed (1) introduces a starting material, made of cellulose, water and a functional fluid, into the housing (4), wherein an evaporator shaft (5) situated in the housing (4) rotatingly sweeps the starting material over the heated interior of the housing (4), wherein the product is heated and some of the water evaporates so as to result in the transfer mixture, which flows to the outlet (2) together with a supply stream, wherein the through-flow capacity of the outlet (2) is greater than the supply stream.

Abstract: Mixing kneader for processing a transfer mixture into a molding solution, according to the direct dissolution method, having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein a kneader shaft situated in the housing rotationally mixes and kneads the product and sweeps wipes it over heated inner surfaces of the mixing kneader, wherein reducing the amount of undissolved particles in the product and the size of the particles are reduced, and evaporating some of the water evaporates to produce form a molding solution, wherein the process volume of the mixing kneader is determined only by the requirements of a molding solution flow capacity.

Abstract: The invention discloses a preparation method and a production device for producing a recycled fiber spinning solution with using a solvent, which comprises two or more vertical wiped film evaporators (3, 4, . . . ) connected with a single horizontal cylindrical kneading reactor. The aqueous mixture of cellulose and solvent and auxiliary agent is prepared into a spinnable cellulose spinning dope, which is characterized by injecting the material mixture into two or more vertical wiped film evaporators and a horizontal cylindrical kneading reactor, each unit is preferably equipped with a separate condensing system, and the vacuum system can be separately configured to share a vacuum system.

Abstract: 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), the mixing and cleaning elements (5) on the shafts (1, 2) meshing with each other and being equipped with disk elements that include kneading bars. The number of disk elements including kneading bars is adjusted to the speed ratio between the shafts.

Abstract: 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 the 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 in the longitudinal direction thereof.

Abstract: 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), the mixing and cleaning elements (5) on the shafts (1, 2) meshing with each other and being equipped with disk elements that include kneading bars. The number of disk elements including kneading bars is adjusted to the speed ratio between the shafts.

Abstract: A method for carrying out polymerization processes, includes a first step involving polymerization or co-polymerization of a monomer or monomers, and a second step involving a separation step. In an embodiment, before the separation step, during the separation step, or both before and during the separation step, one or more substance is added to the reaction mixture that induces stripping, influencing of the temperature, or both stripping and influencing of the temperature such that the reaction equilibrium is shifted to the polymers and the rate of reaction to the monomer is slowed. In embodiments, before and/or in the second step, a substance is added to the reaction mixture so that a stop is achieved, and as a further function stripping and/or influencing of temperature occurs.

Abstract: The invention relates to an absorption refrigerating machine and a process for the operation thereof. It can be used as a household cooling appliance, for example as the last link in the cold chain, or for the cooling of medicine or as a refrigerating set of an air-conditioning system, and use in a stand-alone variant without an electrical energy connection is possible. The absorption refrigerating machine has a condenser, an evaporator and an absorber, and a refrigerant-absorbent mixture can be circulated through all three. There is also at least one solar collector for heating to above the refrigerant boiling point and a refrigerant storage unit connected to the condenser. High-pressurized liquid refrigerant is held in the refrigerant storage unit, and an absorbent storage unit and a desorbent storage unit are connected to the absorber.