| 摘要 |
<p>A process for preparing 1,2-difluoroethane or 1,1,2-trifluoroethane by hydrogenation of 1,2-dichloro-difluoroethylene or chlorotrifluoroethylene in the presence of a hydrogenation catalyst, said process being conducted in the gas phase at a temperature ranging from 100 to 220 DEG C, the molar ratio of H2 to olefin being at least 3.</p> |
