2-chloro-3,3,3-trifluoropropene (1233XF) compositions and methods for making and using the compositions
AssigneeThe Chemours Company Fc, LLC
InventorsXuehui Sun, Karl Robert Krause, Andrew Jackson
Life of this patent
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Abstract
A composition including 2-chloro-3,3,3-trifluoropropene (1233xf), one or more of 2,3-dichloro-1,1,1-trifluoropropane (243db), 1,2-dichloro-3,3,3-trifluoropropene (1223xd), 2,3-dichloro-3,3-difluoropropene (1232xf), 2,2,3-trichloro-1,1,1-trifluoro-propane (233ab), 2,3,3-trichloro-1,1,1-trifluoro-propane (233da), 3,3,3-trifluoropropyne, 1-chloro-3,3,3-trifluoropropyne, 3,3,3-trifluoro-1-propene (1243zf), 1-chloro-3,3,3-trifluoro-1-propene (1233zd), 1-chloro-2,3,3,3-tetrafluoro-1-propene (1224yd), or 2-bromo-3,3,3-trifluoropropene and optionally 1233xf oligomers are disclosed.
Claims23
A composition comprising:
- a) 2-chloro-3,3,3-trifluoropropene (1233xf) in an amount at least 94% GC area, 1,2-dichloro-3,3,3-trifluoropropene (1223xd), 2,3-dichloro-3,3-difluoropropene (1232xf);
- and
- b) at least one additional compound selected from the group consisting of 2,3-dichloro-1, 1, 1-trifluoropropane (243db), 2,2,3-trichloro-1,1,1-trifluoro-propane (233ab), 2,3,3-trichloro-1,1,1-trifluoro-propane (233da), 3,3,3-trifluoropropyne, 1-chloro-3,3,3-trifluoropropyne, 3,3,3-trifluoro-1-propene (1243zf), 1-chloro-3,3,3-trifluoro-1-propene (1233zd), 1-chloro-2,3,3,3-tetrafluoro-1-propene (1224yd), 2-bromo-3,3,3-trifluoropropene, and combinations thereof.
A 2-chloro-3,3,3-trifluoropropene (1233xf) composition comprising 94% GC area 1233xf, 1,2-dichloro-3,3,3-trifluropropene (1223xd), 2,2,3-trichloro-1,1,1-trifluoropropane (233ab), and 2,3-dichloro3,3-difluoropropene (1232xf), and produced by the steps of:
- contacting 2,3-dichloro-1,1,1-trifluoropropane (243 db), in the liquid phase, with a base at a temperature between about 25° C. to about 75° C. to effect dehydrochlorination to form the 2-chloro-3,3,3-trifluoropropene (1233xf), 2,2,3-tricholoro- 1,1,1-trifluoropropane (233ab), 1,2-dichioro-3,3,3-trifluoropropene (1223xd) and 2,3-dichioro-3,3-difluoropropene (1232xf).
A 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) composition including HCFO-1233xf in excess of 94% GC are and HCFC-233ab produced by the steps of:
- contacting 2,3-dichloro-1,1,1-trifluoropropane (243db), in the vapor phase, with a dehydrochlorination catalyst at a temperature between about 325° C. to about 450° C. and pressure sufficient to effect dehydrochlorination to form the 2-chloro-3,3,3-trifluoropropene (1233xf) and HCFC-233ab.
A 2-chloro-3,3,3-trifluoropropene (1233xf) composition produced by the steps of:
- contacting a compound selected from the group consisting of 1,1,1,2,3-pentachloropropane (HCC-240db), 2,3,3,3-tetrachloropropene (1230xf), 1,1,2,3-tetrachloropropene (HCC-1230xa), 2,3-dichloro-1,1,1-trifluoropropane (243db) and combinations thereof, in the vapor phase, with a carbon supported fluorination catalyst in the presence of hydrogen fluoride at a temperature and pressure sufficient to effect formation of 2-chloro-3,3,3-trifluoropropene (1233xf).
Dependencies are inferred from the claim text.