Process for extracting metals

Details Process for extracting metals Process for extracting metals

1993-06-04

1995-02-28

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210634, 210685, 423 99, 423101, 423106, 423139, 75725, B01D 1504

Patent

active

053934318

ABSTRACT:
A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently, represents a substituted hydrocarbyl or hydrocarbyloxy group or R.sup.1 and R.sup.2 together with the attached phosphorus atom and/or R.sup.3 and R.sup.4 together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.

REFERENCES:
patent: 3966569 (1976-06-01), Reinhardt et al.
patent: 4226791 (1980-10-01), Reinhardt et al.
patent: 5028334 (1991-07-01), Rickelton et al.
patent: 5135652 (1952-08-01), Boateng
A. Schmidpeter et al., Chem. Ber., vol. 101, 1968, pp. 815-823.
O. Navratil et al., Darstellung von Tetraphenylestern der Imidothio-und . . . , Z. Chem., vol. 24, No. 1, 1984, p. 30.
J. Boedeker, Zur Lage Der P.dbd.S-Valenzschwingung und . . . , J. Organometal. Chem., vol. 56, 1973, p. 255-260.
Chemical Abstracts, vol. 116, 1992, & ZH. Obshch. Khim., vol. 61, No. 6, 1991, pp. 1474-1475, N. G. Zabirov et al., & Registry (Database, STN) RN: 138319-79-6, 138319-80-9, 13819-81-0, 13819-82-1.

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