Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane

US5171901A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl-Rudolf Gassen · Odenthal, DE
• Dietmar Bielefeldt · Ratingen, DE
• Albrecht Marhold · Leverkusen, DE
• Hans-Helmut Schwarz · Krefeld, DE

Key dates

• Filing date: Dec 5, 1991
• Grant date: Dec 15, 1992
• Expiry date: Dec 5, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/23
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Hexafluoropropanes of the formula CF.sub.3 -CHX-CF.sub.3 where X is hydrogen or chlorine are prepared by reacting hexachloropropene with hydrogen fluoride in the gas phase in the presence of a catalyst.