Method for making alkylhalosilanes

US4500724A · kind A · utility

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: Jul 28, 1983
• Grant date: Feb 19, 1985
• Expiry date: Jul 28, 2003

Classification

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

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.