公开(公告)号：US4124456A

公开(公告)日：1978-11-07

申请号：US688912

申请日：1976-05-21

申请人： Lev M. Yagupolsky ,  Vladimir N. Zavatsky ,  Valery Y. Semeny ,  Konstantin N. Bildinov ,  Petr V. Serebrov ,  Alevtina A. Goncharenko ,  Alexandr V. Kirsanov ,  Mikhail I. Lyapunov ,  Ninel G. Feschenko

发明人： Lev M. Yagupolsky ,  Vladimir N. Zavatsky ,  Valery Y. Semeny ,  Konstantin N. Bildinov ,  Petr V. Serebrov ,  Alevtina A. Goncharenko ,  Alexandr V. Kirsanov ,  Mikhail I. Lyapunov ,  Ninel G. Feschenko

IPC分类号： C07F9/53 ,  C25B3/08 ,  C25B3/04

CPC分类号： C25B3/08 ,  C07F9/5304

摘要： Novel compounds, viz., tris(perfluoroalkyl)phosphine oxides have the following general formula ##STR1## where R.sub.F is a perfluoroalkyl of normal and iso-structure, having from 2 to 8 carbon atoms.The method of preparing said compounds consists in that trialkylphosphine oxide having the general formula R.sub.3 PO, where R = C.sub.8 -C.sub.8, is fluorinated electrochemically in a medium of anhydrous hydrogen fluoride; whenever trialkylphosphine oxides having the general formula R.sub.3 PO, where R = C.sub.5 - C.sub.8, are used as the starting material, they are first brominated in a medium of anhydrous hydrogen fluoride, with subsequent isolation of the end product.The proposed novel compounds can be used as solvents for salts of rare earth elements and as complexing agents in the separation of valuable metals.

摘要翻译： 新的化合物，即三（全氟烷基）氧化膦具有以下通式：其中RF是具有2-8个碳原子的正构和异构结构的全氟烷基。