Fine particle silicon containing surface-bound halogen, a process for its production and its use

US5618960A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Schulze
• Hans Rinkes · Neunburg vorm Wald, DE
• Elke Licht · Leverkusen, DE
• Alfred B orsting · Linz, DE
• Bruno Degen · Much, DE
• Hans-Heinrich Moretto · Cologne, DE
• Gebhard Wagner · Odenthal, DE

Key dates

• Filing date: Oct 27, 1993
• Grant date: Apr 8, 1997
• Expiry date: Oct 27, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/125
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In the production of an organochlorosilane by reaction of silicon with at least one of an alkyl or aryl chloride in the presence of a copper catalyst, the improvement which comprises employing as the silicon fine-particle silicon containing surface-bound chlorine produced by contacting fine-particle silicon in reactive form with gaseous or liquid chlorine.