Method for producing fluorine-containing olefin
AssigneeDaikin Industries, Ltd.
InventorsKazuhiro Takahashi, Masatoshi Nose, Takehiro Chaki
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Abstract
The present invention aims to reduce an amount of by-products generated in a reaction step for obtaining fluorine-containing olefin, and thereby to obtain fluorine-containing olefin as a target substance with a higher selectivity than that in the conventional method. In a reaction step for generating fluorine-containing olefin by a dehydrohalogenation reaction from fluorine-containing halogenated propane expressed by a general formula CF3CH(2-n)XnCH(3-m)Xm (wherein n=0, 1 or 2; m=1, 2 or 3; and n+m≦3; and X is selected from F, Cl and Br, independently), fluorochromium oxide having a fluorine content not less than 30% by weight is used as a catalyst.
Claims6
A method for producing fluorine-containing olefin, comprising a reaction step wherein fluorine-containing olefin is generated by a dehydrohalogenation reaction from fluorine-containing halogenated propane expressed by a following general formula:
- CF3CH(2-n)XnCH(3-m)Xm
- wherein n=0, 1 or 2;
- m=1, 2 or 3;
- and n+m≦3;
- and X is selected from F, Cl and Br, independently,
- characterized in that fluorochromium oxide having a fluorine content not less than 30% by weight is used as a catalyst in the reaction step.
Dependencies are inferred from the claim text.