Process for preparing methylchlorosilanes

US7205426B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Wilfried Kalchauer · Burghausen, DE
• Jochen Gross · Erlangen, DE

Key dates

• Filing date: Sep 21, 2005
• Grant date: Apr 17, 2007
• Expiry date: Sep 21, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the direct synthesis of methylchlorosilanes by reaction of chloromethane with a contact composition comprising silicon, copper catalyst and from 10 to 90 ppm of strontium leads to increased selectivity and higher production rate.