Process for producing chlorotrifluoroethylene
AssigneeHoneywell International Inc.
InventorsHaiyou Wang, Hsueh Sung Tung
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Abstract
The present invention relates, at least in part, to a process for making chlorotrifluoroethylene (CFO-1113) from 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a). In certain aspects, the process includes dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides; (ii) one or more halogenated metal oxides; (iii) one or more zero-valent metals or metal alloys; (iv) combinations thereof.
Claims26
A process for producing chlorotrifluoroethylene (CFO-1113) comprising:
- dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides;
- (ii) one or more halogenated metal oxides;
- (iii) one or more zero-valent metals or metal alloys;
- (iv) combinations thereof to produce a reaction product comprising CFO-1113.
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A process for producing chlorotrifluoroethylene (CFO-1113) comprising:
- dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides;
- (ii) one or more halogenated metal oxides;
- (iii) one or more zero-valent metals or metal alloys;
- (iv) combinations thereof, wherein the dehydrochlorinating step is conducted at a temperature greater than about 400° C., wherein a product stream of the dehydrochlorinating step comprises less than 10 wt. % of organic by-product impurities, and wherein the selectivity for CFO-1113 is at least about 70 wt. %.
Dependencies are inferred from the claim text.