Process for production of 1,1,1-trifluoro-2,2-dichloroethane

• US 5,132,473 A
• Filed: 09/21/1990
• Issued: 07/21/1992
• Est. Priority Date: 05/17/1988
• Status: Expired due to Term

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Honda, Tsunetoshi, Homoto, Yukio, Furutaka, Yasuhisa
• Primary Examiner(s): EVANS, JOSEPH
• Application Number:
  US07/586,373
• Time in Patent Office: 669 Days
• Field of Search: 570/123, 570/245
• US Class Current: 570/123
• CPC Class Codes: C07C 17/158 of halogenated hydrocarbons
• CPC Class Codes: C07C 19/12 having two carbon atoms

Abstract

A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising reacting 1,1,1-trifluoro-2-chloroethane with hydrogen chloride and oxygen in the presence of a metal salt as a catalyst.

Claims

1. A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising reacting 1,1,1-trifluoro-2-chloroethane with hydrogen chloride and oxygen in the presence of a metal salt as a catalyst carried in a support, in which the metal salt is CuCl₂ and the support is aluminum fluoride.

2. A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising reacting 1,1,1-trifluoro-2-chloroethane with hydrogen chloride and oxygen in the presence of a metal salt as a catalyst on a support, in which the support is a metal fluoride.

3. The process according to claim 2, wherein the metal salt is NiCl₂, CuCl₂ or FeCl₂.

4. The process according to claim 2, wherein the support is aluminum fluoride.

5. The process according to claim 4, wherein the metal salt is NiCl₂, CuCl₂ or FECl₂.