Method for producing fluorinated organic compounds

Details Method for producing fluorinated organic compounds Method for producing fluorinated organic compounds

2009-05-14

2011-11-29

Katakam, Sudhakar (Department: 1621)

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

Organic compounds

Halogen containing

C570S135000, C570S157000, C570S164000, C570S179000, C570S188000

Reexamination Certificate

active

08067649

ABSTRACT:
Disclosed is a process for producing tetrafluoropropene comprising: (a) catalytically fluorinating at least one tetrafluoropropene in a first reactor to produce HCFO-1233xf; (b) reacting said HCFO-1233xf with hydrogen fluoride in a second reactor to produce HCFC-244bb; (c) recycling at least a portion of said HCFC-244bb back to said first reactor as recycled HCFC-244bb; and (d) catalytically dehydrochlorinating said recycled HCFC-244bb in said first reactor to produce HFO-1234yf.

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