Patent · US Active

Process for preparing methylchlorosilanes

US7550620B2 · kind B2 · utility

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0References

15Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Wilfried Kalchauer · Burghausen, DE
Jochen Gross · Erlangen, DE
Wolfgang Zoller · Paris, FR

Key dates

Filing date	Sep 18, 2007
Grant date	Jun 23, 2009
Priority date	—
Expiry date	Sep 18, 2027

Classification

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

Abstract

The invention relates to a process for the direct synthesis of methylchlorosilanes by reaction of chloromethane with a contact composition comprising silicon and copper catalyst, wherein the concentration of oxygen in the chloromethane used is reduced by mixing a) chloromethane which contains oxygen, and b) chloromethane which contains a gaseous boron compound.

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