PROCESS FOR RECOVERING (CHLORO)HYROCARBON-FREE HYDROGEN CHLORIDE AND PHOSGENE-FREE (CHLORO)HYDROCARBONS FROM A HYDROGEN CHLORIDE STREAM COMPRISING (CHLORO)HYDROCARBONS AND PHOSGENE

摘要

The invention ; i) a first adsorber and connecting a second adsorber in series, and virtually no more (chloro) hydrocarbon is first new hydrogen chloride stream comprising phosgene and (chloro) hydrocarbon until no absorption in the first adsorber first adsorber a first step of passing and then passed to a second adsorber in; ; ii) while reproducing the first adsorber is passed through a new stream of hydrogen chloride to the second adsorber, the second step to obtain a substantially phosgene-free (chloro) hydrocarbon in the reproduction; ; iii) a third step that substantially more (chloro) hydrocarbon is passed through a second adsorber until no absorption in a stream of hydrogen chloride was passed through a new priority to the second adsorber, the first adsorber is then regenerated; And ; iv) while reproducing the second adsorber is passed through a new stream of hydrogen chloride to the first adsorber, a fourth step of obtaining a substantially phosgene-free (chloro) hydrocarbons from a reproduction ; It comprises the steps i) to iv) is the one that can be performed over a continuous one, (chloro) (chloro) hydrocarbon-free hydrogen chloride and phosgene-free (chloro) hydrocarbons from a hydrogen chloride stream containing hydrocarbons and phosgene It relates to a method for recovering.