PROCESS FOR THE MANUFACTURE OF TETRAFLUOROOLEFINS

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Abstract

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A method for producing a tetrafluoroolefin, such as 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprises contacting 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) with or without a catalyst under conditions effective to convert the 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) to the tetrafluoroolefin, optionally, via an intermediate. The conversion may be a one-step fluorination or a two-step fluorination and dehydrochlorination process. The 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) may also be obtained by dehydrochlorinating 1,2,3-trichloropropane (HCC-260da) to form 2,3-dichloropropene (HCO-1250xf); fluorinating 2,3-dichloropropene (HCO-1250xf) to form 1,2-dichloro-2-fluoropropane (HCFC-261bb); and chlorinating 1,2-dichloro-2-fluoropropane (HCFC-261bb) to form 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb).

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Patent Owner(s)

Patent OwnerAddress
ARKEMA INCUSPENNSYLVANIA AMERICA

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Inventor(s)

Inventor Name Address
BONNET PHILIPPE LYONS
CHEN BENJAMIN B WAYNE PENNSYLVANIA 19087
ELSHEIKH MAHER Y WAYNE PA 19087

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