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US5750810A Method for coproducing difluoromethane and 1,1,1,2-tetrafluoroethane 失效
共同生产二氟甲烷和1,1,1,2-四氟乙烷的方法

Method for coproducing difluoromethane and 1,1,1,2-tetrafluoroethane
摘要:
The present invention relates to the simultaneous manufacture of difluoromethane (F32) and 1,1,1,2-tetrafluoroethane (F134a) by pyrolysis of chlorodifluoromethane in the presence of hydrogen, working at a temperature above 500.degree. C. in the absence of any catalyst or metal surface. Depending on the operating conditions chosen, this process also makes it possible predominantly to manufacture either F134a or F32.
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