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Pierre Liechti

Pierre-Alain Fleury

Jorg M List

Thomas Isenschmid

Reinhard Geisler

Alfred Kunz

Daniel Witte

Walther Schwenk

Manuel Steiner

Winfried Dotsch

George Schlager

Daniel Arnaud

Roland Kunkel

Bernhard Stützle

In a method of processing and/or recovering and/or reutilizing residues, especially from refinery processes, containing a base substance, especially comprising hydrocarbon, for example kerosene, and oil, and also metallic residues, the residues are to be introduced into a first reactor () in which a portion of the volatile residues evaporates and then is transferred into a second reactor () and solidifies therein by cooling, optionally promoted by evaporation of water.

Method of processing and/or recovering and/or reutilizing residues, especially from refinery processes

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 fiber, in particular a p-aramide fiber, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenized and/or degassed and then discharged, which takes place at least partially in a reactor (), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor () using a force-feed device ().

Method for treating a monomer, pre-polymer, polymer or a corresponding mixture

A process for continuously performing polymerization processes, wherein monomer(s), catalysts, and initiators are added continuously to a backmixed mixing kneader (-) with a length/diameter ratio of 0.5-3.5 and backmixed therein with already reacted product, and the reacted product is simultaneously drawn off continuously from the mixing kneader (-).

Method for the continuous implementation of polymerisation processes

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 ().

Method and system for producing a spinning solution for producing a polymer fiber

In a kneader mixer for the thermal or chemical treatment of products in liquid, pasty and/or powdered form within a housing (1), a kneader shaft (20) which is provided with blade elements (25) and rotates around an axis of rotation (A) is arranged. Between the blade elements (25) there are kneading-support elements (27, 43) having in each case a foot (32) fastened on the housing. The blade element(s) (35) is (are) arranged in blade planes (E) perpendicular to the kneader shaft. In this connection, the foot (32) of the kneading-support element (27, 43) also lies in the plane (E) of the blade element(s) (25).

Kneader mixer

In the case of a continuously operating mixing kneader for the thermal or chemical treatment of products in liquid, pasty and/or pulverulent state in a housing, there is arranged in this housing, running axially, a kneader shaft (20), which is equipped with disk elements (25) and kneading bars (40) and rotates about an axis of rotation (z). Said kneader shaft effects the transporting of the product in the direction of transport (x). Between the disk elements (25) there are provided kneading counter-elements (33), fixed to the housing (1), the disk elements (25) being arranged furthermore in disk planes (42) perpendicularly to the kneader shaft and forming between them free sectors, which create kneading chambers with the disk plane (42) of adjacent disk elements (25). In this arrangement, the kneading bars (40) are intended to be arranged on a positive or negative offset line (43 or 44) in the kneading chambers between two disk planes (42). In the case of a positive offset line (43), each kneading bar (40 ) respectively assigned to two disk elements (25) is followed, counter to the direction of rotation (z), by a kneading bar assigned to the next two disk elements of the kneading chamber (28) following in the direction of transport (x), whereas the negative offset line (44) runs in the direction of rotation (z) and the direction of transport (x).

Continuously operating mixing kneader

Heatable or coolable mixing kneader for batchwise or continuous operation for mixing/kneading processes with liquid, pasty and free-flowing products, with a kneading shaft (16) coaxially rotating in a cylindrical housing (1), with disk elements (17) mounted at right angles thereupon, with kneading bars (18), which interest with kneading counterelements (19/20/21) fixed in the housing, characterized in that these kneading tools are designed as interengaging forks with kneading gaps of large specific length.

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Muttenz, Switzerland

Pierre Liechti