Title:
METHOD FOR PURIFYING 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE
Document Type and Number:
Japanese Patent JPH0558924
Kind Code:
A
Abstract:
PURPOSE: To simplify a production process of 2,2-dichloro-1,1,1-trifluoroethane, especially a purifying process for reducing 1,2dichloro-1,1,2-trifluoroethane carried by 2,2-dichloro-1,1,1-trifluoroethane.
CONSTITUTION: In a method of purification for reducing 1,2-dichloro-1,1,2- trifluoroethane contained in 2,2-dichloro-1,1,1-trifluoroethane by isomerizing 1,2-dichloro-1,1,2-trifluoroethane in a vapor phase, fluorinated and chlorinated alumina obtained by fluorinating and chlorinating active alumina with 1,2- dichloro-1,1,2-trifluoroethane in a vapor phase is used as the catalyst.
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Inventors:
SAKU FUYUHIKO
OSHIO HIDEKI
OSHIO HIDEKI
Application Number:
JP22256891A
Publication Date:
March 09, 1993
Filing Date:
September 03, 1991
Export Citation:
Assignee:
CENTRAL GLASS CO LTD
International Classes:
B01J27/125; B01J37/22; C07B61/00; C07C17/358; C07C17/38; C07C19/08; (IPC1-7): B01J27/125; B01J37/22; C07B61/00; C07C17/24; C07C17/38; C07C19/08
Attorney, Agent or Firm:
Eiichi Sakamoto
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