Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2009-02-24
2011-12-06
Katakam, Sudhakar (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S159000, C570S166000, C570S169000, C570S172000
Reexamination Certificate
active
08071826
ABSTRACT:
A process for the preparation of 2,3,3,3-tetrafluoropropene (HFO-1234yf). HFO-1234yf is a refrigerant with low global warming potential. A process comprises a) reacting chlorotrifluoroethylene with a methyl halide to form an intermediate product stream; and b) reacting the intermediate product stream with hydrogen fluoride to thereby produce a result comprising 2,3,3,3-tetrafluoropropene.
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Bradford Bruce
Honeywell International , Inc.
Katakam Sudhakar
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