Method of preparing 1,1,1,2-tetrafluoroethane

US5336817A · kind A · utility

Assignee

• SOLVAY FLUOR und DERIVATE GmbH · DE

Inventors

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

Key dates

• Filing date: Sep 25, 1992
• Grant date: Aug 9, 1994
• Expiry date: Sep 25, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/21
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of preparing CH.sub.2 FCF.sub.3 from fluorodichloro-ethylene using a catalytically active niobium, tantalum or molybdenum fluorosulfonate compound or a catalyst mixture which comprises a niobium, tantalum or molybdenum halide and a sulfonic acid derivative.