Patent · US Active

Process for the preparation of chlorofluoroalkenes

US8609907B2 · kind B2 · utility

1Cited by

14References

20Claims

0Family size

Assignee

SOLVAY FLUOR GMBH · DE

Inventors

Johannes Eicher · Garbsen, DE
Wolfgang Kalbreyer · Steyerberg, DE
Ercan Uenveren · Hannover, DE

Key dates

Filing date	Nov 20, 2009
Grant date	Dec 17, 2013
Priority date	—
Expiry date	Jul 23, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/25
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

One or more hydrochlorofluoroalkenes can be produced by dehydrofluorination of a hydrochlorofluoroalkane over a X-ray amorphous high surface metal fluoride or a X-ray amorphous or weakly crystalline metal oxide fluoride wherein the metal is selected from the 2nd, 3rd or 4th main group or any subgroup of the periodic system of elements. High-surface aluminum fluoride or aluminum oxide fluoride are especially suitable as catalysts. For example, CF3CH2CHClF is reacted to produce CF3CH═CHCl, and CF3CH2CClFCH3 is reacted to form CF3CH2CCl═CH2 and/or CF3CH═CClCH3.

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