Process for producing 1,2-dichloro-1,1,2,2-tetrafluoroethane sub

Details Process for producing 1,2-dichloro-1,1,2,2-tetrafluoroethane sub Process for producing 1,2-dichloro-1,1,2,2-tetrafluoroethane sub

1980-12-08

1982-03-09

Waltz, Thomas A.

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

Organic compounds

Halogen containing

570134, C07C 1738

Patent

active

043190600

ABSTRACT:
The present invention provides a novel process for producing 1,2-dichloro-1,1,2,2-tetrafluoroethane substantially free of the 1,1-isomer. The process includes contacting, in the vapor phase, an organic feed composition containing a major amount of the 1,2-isomer and a minor amount of 1,1-isomer with hydrogen in the presence of a hydrodechlorination catalyst. The process selectively degrades the 1,1-isomer. Also provided is a process for producing high purity 1,2-isomer.

REFERENCES:
patent: 2661377 (1953-12-01), McKenna et al.

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