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US 8,912,368 B2Granted
Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf)
AssigneeHoneywell International Inc.
InventorsDaniel C. Merkel, Hsueh S. Tung
Life of this patent
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Abstract
The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.
Claims22
A reaction mixture for preparing fluorinated organic compounds comprising a C3 chlorocarbon;
- a halogenating agent;
- at least one catalyst and at least one stabilizer, wherein the stabilizer is selected from the group consisting of an amine stabilizer, a hydroquinone stabilizer, a methoxy-hydroquinone, a triethylamine, a di-isopropyl amine, a butylated hydroxyl anisole (BHA), and combinations thereof, and wherein said reaction mixture produces a C3 haloolefin.
Dependencies are inferred from the claim text.