| 摘要 |
Process for the separation of hydrogen fluoride (HF), 2,2-dichloro-1,1,1-trifluoroethane (FC-123), and/or 2-chloro-1,1,1,2-tetrafluoroethane (FC-124) from mixtures comprising them by controlling the molar ratio of HF/FC-123 in the mixture prior to subjecting the mixture to azeotropic distillation. |
