Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Degussa - Huls Ag

Steffen Seebald

Philipp Albert

Karsten Korth

Dorit Wolf

Reimund Pieter

Ralf Karch

Christoph Batz-Sohn

Matthias Prinz

Alfreg Alig

Stefan Wieland

Heike Riedemann

Alfred Alig

Hermanus Gerhardus Lansink Rotgerink

Thomas Krauter

Harald Hoecker

Hermanus Lansink-Rotgerink

The present invention relates to a process for preparing mercaptoorganyl(alkoxysilanes), by hydrogenating bis(alkoxy-silylorganyl) polysulphides with hydrogen in the presence of at least one alcohol and a doped metal catalyst. The doped metal catalyst comprises at least one substance from the group consisting of iron, iron compound, nickel, nickel compound, palladium, palladium compound, osmium, osmium compound, ruthenium, ruthenium compound, rhodium, rhodium compound, iridium and iridium compound plus at least one doping component.

Process for preparing mercaptoorganyl (alkoxysilanes)

The invention concerns a process for producing mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated at temperatures of &#x3c;190&#xb0; C. and pressures of &#x3c;100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol or HS.

Process for producing mercaptoorganyl (alkoxysilane)

The invention relates to a process for the preparation of mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, HS or water.

Process for the preparation of mercaptoorganyl (alkoxysilanes)

A process for the preparation of organosilanes functionalized in the 3-position, by the reaction of suitable allyl compounds with hydrogen silanes, using platinum catalysts having one or more sulfur-containing ligands.

Process for the preparation of organosilanes functionalized in the 3-position

A method for the production of organosilanes functionalized in 3-position by reacting suitable allyl compounds with hydrogen silanes in the presence of a multielement catalyst containing platinum and at least one other element.

Method of producing propylsilanes

A phosphoric acid catalyst on a shaped, inorganic support and its use for the hydration of olefins. At least 90 wt. % of the catalyst support consists of titanium dioxide and/or zirconium dioxide and has outstanding ageing stability under the hydrothermal conditions existing during hydration processes.

Phosphoric acid catalyst and its use

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Kahl am Main, Germany

Steffen Seebald