Process for dehydrofluorination of...

Details Process for dehydrofluorination of... Process for dehydrofluorination of...

2009-04-06

2010-11-09

Parsa, Jafar (Department: 1621)

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

Organic compounds

Halogen containing

Reexamination Certificate

active

07829747

ABSTRACT:
A process for making 1-chloro-3,3,3-trifluoropropene. The process has the following step: dehydrofluorinating 3-chloro-1,1,1,3-tetrafluoropropane under conditions sufficient to effect dehydrofluorination in the presence of a catalyst. Preferred catalysts are selected from the group consisting of (i) one or more halogenated trivalent or higher valent metal oxides, (ii) one or more trivalent or higher valent metal halides, and (iii) one or more natural or synthetic graphite materials.

REFERENCES:
patent: 5710352 (1998-01-01), Tung
patent: 6844475 (2005-01-01), Tung et al.
patent: 2005/0090698 (2005-04-01), Merkel et al.

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