2 ppm by weight of chloropentafluoroethane
2 ppm by weight of chloropentafluoroethane
2 ppm by weight of chloropentafluoroethane
not more than 2 ppm by weight of R115 (Chloropentafluoroethane
A mixture of pentafluoroethane and chloropentafluoroethane is contacted with an entraining agent to form an azeotrope of the entraining agent and chloropentafluoroethane.
Object: to provide a method of efficiently separating pentafluoroethane (HFC-125) from a mixture thereof with chloropentafluoroethane (CFC-115).
A method by which pentafluoroethane (HFC-125) can be efficiently separated from a mixture of HFC-125 with chloropentafluoroethane (CFC-115).
A process for separating pentafluoroethane from a mixture comprising pentafluoroethane and chloropentafluoroethane by employing extractive agents comprising a hydrochlorocarbon, hydrocarbon, chlorocarbons, among others.
Distillation is conducted such that the azeotrope of chloropentafluoroethane and entraining agent is removed as an overhead distillation fraction and the pentafluoroethane is removed as a bottoms distillation fraction.
not more than 2 ppm by weight of R22 (Chlorodifluoromethane
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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