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US5091601A Process for preparing 1,1,1-trifluoro-2,2-dichloroethane by hydrofluorination in the presence of catalysts 失效
在催化剂存在下通过氢化制备1,1,1-三氟-2,2-二氯乙烷的方法

Process for preparing 1,1,1-trifluoro-2,2-dichloroethane by
hydrofluorination in the presence of catalysts
摘要:
A process for preparing 1,1,1-trifluoro-2,2-dichloroethane by hydrofluorination, in the gas phase, of perchloroethylene in the presence of a catalyst comprising chrome oxides supported on AlF.sub.3 in the gamma and/or beta form.
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