Add time:08/19/2019         Source:sciencedirect.com

1.1.1.2 - Tetrafluoroethane was prepared from isomeric mixtures of dichlorotetrafluoroethane (cas 1320-37-2)s through selective hydrogenolysis of CF3CCl2F catalyzed by Pd/C. The other isomer CClF2CClF2 appeared more stable to hydrogenolysis and was only converted partially to the monohydrogenated derivative CHF2CClF2.The Influences of the three most important operating parameters were defined on the basis of a statistical, testing program.The mathematical elaboration of the experimental data allowed definition of the relationships by which it is possible to foresee conversion of CF3CCl2F, yield of CF3CH2F and concentration of reaction products, such as CF3CH3, CF3CH2F, CF3CHClF and CClF2CHF2 in terms of the above parameters.

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