Process for production of dichlorotrifluoroethane

Details Process for production of dichlorotrifluoroethane Process for production of dichlorotrifluoroethane

2006-12-18

2011-11-01

Katakam, Sudhakar (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C570S124000, C570S165000, C570S177000

Reexamination Certificate

active

08049045

ABSTRACT:
A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HP) at elevated temperature in the vapor phase in at least one reactor in the presence of a fluorination catalyst. The process is operated so that 30 weight % or more of the perchloroethylene reactant that is fed to the at least one reactor remains unreacted having passed through the or each reactor. The dichlorotrifluoroethane may be purified and then used as it is or used to prepare pentafluoroethane.

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