专利名称：Process for preparing fluorine-containing
ethane derivatives
发明人：Johannes Eicher,Karl-Heinz
Fazniewscy,Werner Rudolph
申请号：US08/051898申请日：19930426公开号：US05283381A公开日：19940201
摘要：A process for preparing fluorine-containing ethane derivatives using hydrogenfluoride and a catalytically active formulation comprising a tantalum fluorosulfonatecompound or a niobium fluorosulfonate compound is described. The process is
particularly suitable for preparing ethane derivatives which contain a CF.sub.3 group, forexample for preparing CF. sub.3 CHCl.sub.2 (R123) from perchloroethylene.
申请人：SOLVAY FLUOR UND DERIVATE GMBH
代理机构：Evenson, McKeown, Edwards & Lenahan
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