Patent · US Expired

Process for working up liquid copper-containing catalyst waste from isomerization reactions of dichlorobutene

US4070405A · kind A · utility

1Cited by

2References

9Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Rolf Baatz · Dormagen, DE
Gunter Beilstein · Dormagen, DE
Dieter Grenner
Wilfried Keller
Dimitry Steinbach

Key dates

Filing date	Jul 13, 1976
Grant date	Jan 24, 1978
Priority date	—
Expiry date	Jul 13, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/358
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Improved working up of the waste from an isomerization reaction of dichlorobutene by precipitating the copper catalyst used in said process by adding a polar solvent and removing the resulting precipitate by filtration.

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