Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Andreas Dörflein

Christoph Weckbecker

Hubert Redlingshöfer

Klaus Huthmacher

Michael Rückriegel

The invention relates to a halide-containing alkali tungstate catalyst for the synthesis of alkylmercaptans from alkanols and hydrogen sulfide, and to a process for the preparation of this catalyst.

Catalysts comprising halide-containing alkali tungstates for the synthesis of alkylmercaptan, and process for their preparation

A process for regenerating a catalyst used in the preparation of acrolein from glycerol, which comprises tungsten compounds and has acidic properties and at least one promoter.

Process for regenerating a catalyst

A process for preparing acrolein from glycerol using an acidic solid-state catalyst which comprises tungsten compounds and further promoters.

Catalysts and process for dehydrating glycerol

The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is &#x3c;2:1.

Catalyst for the synthesis of alkyl mercaptan and process for the production thereof

A method for removal of dissolved oxygen from organic liquids by use of a solid state catalyst. In doing so the dissolved oxygen is converted by the action of a reducing agent into water.

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Langen, Germany

Andreas Dörflein