| 摘要 |
GAS PHASE PROCESS FOR THE PRODUCTION OF 1,1-DICHLORO-1-FLUOROETHANE AND/OR 1-CHLORO-1,1-DIFLUOROETHANE FROM VINYLIDENE CHLORIDE A novel gas phase process for the production of 1,1-dichloro-1-fluoroethane from vinylidene chloride and hydrogen fluoride is provided. The process is characterized by high conversion of vinylidene chloride to product, with a high selectivity for 1,1-dichloro-1-fluoro-ethane. The process may also be operated to selectively form 1-chloro-1,1-difluoroethane. Few volatile by-products and substantially no tar or oligomeric material is formed. Catalyst performance remains constant over extended periods of time.
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