Patent · US Expired

Preparation of catalytic copper and production of organochlorosilane using said copper

US4218387A · kind A · utility

16Cited by

4References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Joachim Maas · Griesheim, DE
Rudolf Mundil · Leverkusen, DE
Bruno Degen · Much, DE
Hans-Heinrich Moretto · Cologne, DE

Key dates

Filing date	Oct 19, 1978
Grant date	Aug 19, 1980
Priority date	—
Expiry date	Oct 19, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J37/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In the preparation of catalytic copper with an average particle size between about 0.1 and 100 microns and a copper-I oxide content of about 3 to 100% by oxidation of a Cu powder, the improvement which comprises carrying out the oxidation with oxygen at a reduced partial pressure compared with that of air, the resulting catalyst being of enhanced catalytic activity especially for the reaction of hydrocarbon chlorides with silicon for the production of organochlorosilanes (Rochow synthesis) wherein the desired material is produced in higher yield and greater selectivity.

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