Chemistry: electrical and wave energy – Processes and products
Patent
1976-05-21
1978-11-07
Sneed, Helen M. S.
Chemistry: electrical and wave energy
Processes and products
204 59F, 2606065P, 260429R, C25B 304
Patent
active
041244567
ABSTRACT:
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.
REFERENCES:
patent: 2519983 (1950-08-01), Simons
patent: 2866824 (1958-12-01), Burg et al.
patent: 2879302 (1959-03-01), England et al.
patent: 3079311 (1963-02-01), Hettinger
patent: 3393151 (1968-07-01), Dolle et al.
patent: 3511761 (1970-05-01), Childs et al.
patent: 3931333 (1976-01-01), Neumaier et al.
R. Paul, J. Chem. Soc., p. 574 (1955).
J. Chem. Soc., p. 1565 (1953).
Emeleus, J. Chem. Soc., p. 375 (1959).
Chemical Abstracts, 84, 80520s (1976) Reference Article Published (1975).
Bildinov Konstantin N.
Feschenko Ninel G.
Goncharenko Alevtina A.
Kirsanov Alexandr V.
Lyapunov Mikhail I.
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