Azeotropic composition comprising water and fluoro hydrocarbon, method and method of manufacturing the hydrofluoroalkane to remove the water from the solution by azeotropic distillation

摘要

PURPOSE: To efficiently and economically reuse a reactant not yet reacted in reaction products. ;CONSTITUTION: Binary azeotropic compositions between water and 1,1-dichloro-1- fluoroethane, 1-chloro-1,1-difluoroethane, 1,1-difluoroethane, 1,1,1-trifluoroethane, 1,1,1,2-tetrafluoroethane or trifluoroethylene, a water removing method from solutions by azeotropic distillation using these composition and a production of a hydrofluoroalkane in which water is removed from the mixture of reaction products by azeotropic distillation using these compositions are provided.;COPYRIGHT: (C)1994,JPO