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发明授权
CN102120714B 一种制备五氟乙烷的方法 有权

一种制备五氟乙烷的方法
摘要：
本发明提供了一种制备五氟乙烷的方法，采用原料I与原料II反应制备五氟乙烷，所述原料I为1，1，1-三氟-2，2-二氯乙烷或1，1，1-三氟-2，2-二氯乙烷与其结构异构体的组合物，原料I的质量百分比含量大于99.8％，原料II为氟化钾水溶液的质量百分比含量为20％～30％，并公开了其具体的制备方法，采用本发明在整个反应过程中不会产生副产物氯代五氟乙烷，也没有有害物的排放，所用原料都可以循环使用，同时，还解决了如何使反应原料高选择性、高转化率地转化为五氟乙烷的问题，提高了产品纯度。
摘要（英）：

The invention provides a method for preparing pentafluoroethane, wherein a raw material I reacts with a raw material II to prepare pentafluoroethane; the raw material I is 1,1,1-trifluoro-2,2-dichloroethane or the composite of 1,1,1-trifluoro-2,2-dichloroethane and a constitutional isomer thereof; and the mass percentage of the raw material II is more than 99.8% and the raw material II is 20-30wt% potassium fluoride solution. The invention also discloses the specific preparation method. By adopting the method, the by-product chloropentafluoroethane can not be generated in the whole reaction process, no harmful substances can be discharged and all the raw materials can be recycled; and the problem of how to convert the reaction raw materials to pentafluoroethane and realize high selectivity and high conversion rate, can be solved and the product purity can be increased.

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