Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Uhde Gmbh

Udhe Gmbh

Deguesa Ag

Ruediger Schuette

Georg Markowz

Thorsten Schultz

Olaf Von Morstein

Steffen Schirrmeister

Johannes Ehrlich

Elias Johannes Klemm

Johannes Albrecht

Martin Bewersdorf

Juri Tschernjaew

Wojciech Pisula

Herbert Riemenschneider

Claas-Juergen Klasen

Stefan Gross

Juergen Loroesch

Hartmut Hederer

Josef Leutner

Martin Schmitz-Niederau

Reinhard Machnik

Christian Alt

Stefan Schulze

Martina Claus

Farid Usmanov

Michael Jucys

Armin Lange De Oliveira

Juergen Rapp

Heinz Moench

The present invention relates to a component for producing vacuum insulation systems, comprising at least one insulation layer which is surrounded by a casing, wherein the gas pressure in the insulation layer can be reduced by means provided in the component, wherein the means for reducing the gas pressure is embodified as activatable. The present invention further describes a vacuum insulation system comprising a component according to the invention.

Component for producing vacuum insulation systems

There are described thermoelectric elements that are manufactured by using a porous matrix or a porous substrate. The matrix consists of an electrically insulating material having sufficient thermal and chemical resistance as well as the lowest possible thermal conductivity, and is provided in predetermined regions with different thermoelectric materials, so that continuous conductors are formed in the matrix. These are electrically connected to one another to form thermocouples, which in turn are electrically interconnected with one another to form the thermoelectric element.

Thermoelectric elements, method for manufacturing same, and use of same

A modular construction micro-reactor with parallel microchannels on fluid guide plates for chemical reactions, but not for evaporation purposes is known. A modular construction falling film evaporator is disclosed, comprising a stack of alternate gap-like evaporation chambers and sheet-like evaporator modules with an assembly of parallel microchannels, whereby the evaporation chambers are open above and/or below across the whole width of the module and the stack is arranged in a container. The falling film evaporator is used in a method for obtaining a gaseous phase from a liquid medium on a technical scale and is suitable for the concentration of thermolabile solutions and rapidly adjustable production of a gas stream.

Method for obtaining a gaseous phase from a liquid medium and device for carrying out the same

The present invention discloses a microreactor for performing heterogeneous catalytic reactions, being of plate or stack construction for industrial use, with provision made for chambers between the plates for the chemical reaction and for the heat removal. Inside the reaction chambers, catalyst material is applied to the internal walls or filled into recesses, and in all chambers there are spacers. In particular the slot-shaped reaction chambers have channels with a hydraulic diameter smaller than 1500 &#x3bc;m and a ratio of free slot width to free slot height in the range of 10 to 450.

Microreactor composed of plates and comprising a catalyst

In order to increase active oxygen stability, sodium percarbonate is coated with single or multiple layers of various substances. Sodium percarbonate particles consist of a core of sodium percarbonate fluidized bed spray granulate and sodium sulphate, which may be partially hydrated, as the sole constituent of a single coating layer. The particles exhibit both elevated active oxygen stability and very good ensilability. The coating layer is applied by spraying an aqueous Na.sub.2 SO.sub.4 solution onto the particles to be coated, which were themselves produced by fluidized bed spray granulation, in a fluidized bed and vaporizing water at a fluidized bed temperature of 35 to 100.degree. C.

Coated sodium percarbonate particles, process for the production thereof

New alkali metal cyanide granulates based on sodium cyanide or potassium cyanide and a method for their preparation are disclosed. Commercially available alkali metal cyanide granulates consist of irregular particles; disadvantages are in particular the tendencies to form dust and to cake. The disclosed alkali metal cyanide granulates demonstrate a reduced tendency to cake and virtually no abrasion. The granulates are characterized by essentially spherical particles with particle diameters in the range 0.1 to 20 mm, a bulk density of more than 600 g/dm.sup.3, an abrasion of less than 1%, and a caking index of at most 4. The granulates can be prepared by fluidized bed spray granulation involving spraying an aqueous solution containing alkali metal cyanide onto alkali metal cyanide nuclei in a fluidized bed and evaporating the water.

Process for preparation of alkali metal cyanide granulates

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Alzenau-Hoerstein, Germany

Ruediger Schuette