Patent · US Expired

Process for preparing fluorine-containing ethane derivatives

US5283381A · kind A · utility

2Cited by

7References

1Claims

0Family size

Assignee

SOLVAY FLUOR und DERIVATE GmbH · DE

Inventors

Johannes Eicher · Garbsen, DE
Karl-Heinz Fazniewscy · Lehrte, DE
Werner Rudolph · Hannover, DE

Key dates

Filing date	Apr 26, 1993
Grant date	Feb 1, 1994
Priority date	—
Expiry date	Apr 26, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/21
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for preparing fluorine-containing ethane derivatives using hydrogen fluoride and a catalytically active formulation comprising a tantalum fluorosulfonate compound or a niobium fluorosulfonate compound is described. The process is particularly suitable for preparing ethane derivatives which contain a CF.sub.3 group, for example for preparing CF.sub.3 CHCl.sub.2 (R123) from perchloroethylene.

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