Solarworld Aktiengesellschaft

Lanxess Deutschland Gmbh

Dirk Müller

Hans-Dieter Block

Johannes-Peter Schäfer

Hans-Joachim Leimkühler

Georg Ronge

Paul Wagner

Stephan Klein

Ulrich Notheis

Ralph Armbrust

Werner Dick

Brian Schwegler

Hans-Detlef Heinz

Alexander Wagner

Ulrike Strauss

The invention relates to a method of producing silane or hydrochlorosilanes by disproportionation of a higher chlorinated hydrochlorosilane or a mixture of said hydrochlorosilanes in the presence of a catalyst. Before the catalyst is used, it is a) washed with hyper-pure water in one or several steps; b) transferred in the water-moist state to the reactor in which the disproportionation is to proceed; c) treated in the reactor with boiling methanol or rinsed with anhydrous methanol; and d) the methanol is removed from the catalyst by evacuation and/or stripping with inert gas. The invention further relates to a method for treating disproportionation catalysts.

Method for producing silanes

The present invention relates to a process for preparing trimethylolpropane having a low APHA color number.

Preparation of trimethylolpropane

Silane is produced in a continuous process by disproportionating trichlorsilane in at least 2 recreation areas for reaction/distillation, which are run through by a countercurrent of steam and liquid in the presence of catalytically active solid under a pressure which ranges between 500 mbar and 50 bar.

Method and facility for producing silane

This invention relates to a continuous process for the preparation of silane by catalytic disproportionation of trichlorosilane in a reactive/distillative reaction zone having a catalyst bed of catalytically active solid.

Method and system for producing silane

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Bergisch Gladbach, Germany

Dirk Müller