Redistribution catalyst and methods for its preparation and use to convert chlorosilicon hydrides to silane

US4613491A · kind A · utility

Assignee

• KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY · KR

Inventors

• Il Nam Jung · Seoul, KR
• Ko D. Cho · Seoul, KR
• John Lim · Claremont, US
• Bok Ryul Yoo · Seoul, KR

Key dates

• Filing date: May 14, 1985
• Grant date: Sep 23, 1986
• Expiry date: May 14, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B33/043
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is disclosed a redistribution catalyst which is the reaction product of a quaternary ammonium halide salt or tertiary amine, and an inorganic carrier having surface hydroxyl groups, such as silica, zeolite, clays, and silicone resins. The catalyst is useful for the disproportionation of chlorosilicon hydrides to dichlorosilane and silane at reaction conditions including a temperature from 0.degree. to 200.degree. C., in liquid or vapor phase with a pressure from 0.1 to 10 atmospheres.