| 摘要 |
Hydrogen fluoride is separated from the organic constituents of a reaction mixture in the process for preparing 1-chloro-1,1-difluoroethane by the fluorination of methyl chloroform. A portion of the reactor bottoms is removed and the HF and volatile organics are vaporized from the reactor bottoms or "tars". The HF and volatile organics are then combined with the product stream from the reactor, and the resulting combined stream is cooled such that two liquid phases are obtained. One of the phases contains primarily HF and the other phase contains primarily 1-chloro-1,1-difluoroethane. |
