Patent · US Expired

Process for the preparation of organochlorosilanes

US6211394A · kind A · utility

2Cited by

5References

7Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Wilfried Kalchauer · Burghausen, DE
Herbert Straussberger · Mehring, DE
Willibald Streckel · Schweich, DE
Jochen Gross · Erlangen, DE

Key dates

Filing date	Jul 26, 2000
Grant date	Apr 3, 2001
Priority date	—
Expiry date	Jul 26, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a continuous process for the direct synthesis of methylchlorosilanes by reacting chloromethane with a catalyst composition comprising silicon, zinc promoter and copper catalyst which is selected from PA1 a) copper oxide, PA1 b) mixtures of at least 80% by weight of copper oxide and copper(I) chloride, PA1 c) copper(I) chloride and PA1 d) mixtures of at least 80% by weight of copper(I) chloride and copper oxide, where copper catalysts a), b), c) or d) are employed alternately in such a way that copper catalyst a) or b) is followed by c) or d), or copper catalyst c) or d) is followed by copper catalyst a) or b).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.