Azeotropic compositions of hydrogen fluoride and Z-3,3,3-trifluoro-1-chloropropene
申请人:ARKEMA FRANCE
公开号:US10029961B2
公开(公告)日:2018-07-24
An azeotropic or quasi-azeotropic composition including hydrogen fluoride, Z-3,3,3-trifluoro-1-chloropropene and one or more (hydro)halocarbon compounds including 1 to 3 carbon atoms. The (hydro) halocarbon compounds are preferably selected among tetrachlorofluoropropanes, trichlorodifluoropropanes, dichlorotrifluoropropanes, chlorotetrafluoropropanes, pentafluoropropanes, dichlorodifluoropropenes, chlorotrifluoropropenes and tetrafluoropropenes. A process for producing a main (hydro)halocarbon compound, including the formation of a mixture of compounds including hydrogen fluoride, Z-3,3,3-trifluoro-1-chloropropene and one or more other (hydro)halocarbon compounds, distillation of this mixture making it possible to collect, firstly, an azeotropic composition, and, secondly, at least one of the compounds of the mixture.
一种共沸或准共沸物,包括氟化氢、Z-3,3,3-三氟-1-氯丙烯和一种或多种含 1 至 3 个碳原子的(氢)卤化合物。(氢)卤烃化合物最好选自四氟丙烷、三氯二氟丙烷、二氯三氟丙烷、氯四氟丙烷、五氟丙烷、二氯二氟丙烯、氯三氟丙烯和四氟丙烯。一种生产主要(氢)卤化合物的工艺,包括形成包括氟化氢、Z-3,3,3-三氟-1-氯丙烯和一种或多种其他(氢)卤化合物在内的混合物,蒸馏该混合物,首先收集共沸物,其次收集混合物中的至少一种化合物。