Method for making alkylhalosilanes

USRE33452E · kind E · reissue

Assignee

• General Electric Company · US

Inventors

• William J. Ward, III · Schenectady, US
• Alan Ritzer · Sand Lake, US
• Kenneth M. Carroll · Albany, US
• John W. Flock · Schenectady, US

Key dates

• Filing date: Sep 25, 1986
• Grant date: Nov 20, 1990
• Expiry date: Sep 25, 2006

Classification

• Technology area (CPC —): General

Abstract

A method is provided for making alkylhalosilanes by effecting reaction between an alkyl halide, such as methyl chloride and powdered silicon in the presence of a copper-zinc-tin catalyst. Significant improvements in reaction rate and product selectivity are achieved when copper is employed at a critical weight percent relative to silicon and critical weight ratios of tin and zinc are employed relative to copper.