Selective removal of chromium, nickel, cobalt, copper and lead c

Details Selective removal of chromium, nickel, cobalt, copper and lead c Selective removal of chromium, nickel, cobalt, copper and lead c

1988-03-09

1990-09-11

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 24, 423 27, 423 32, 423 34, 423 36, 423 38, 423 42, 423 45, 423 46, 423 56, 423 57, 423 92, 423 98, 423139, 423140, 423146, 423150, 423DIG14, 210660, 210634, 502 11, C01G 3114, B01D 1104

Patent

active

049561545

ABSTRACT:
Aqueous effluent solutions containing metal cations may be treated with an extractant comprising an organophosphinic acid, a di-2-ethylhexyl phosphoric acid and/or an aliphatic amine to selectively separate chromium, nickel, cobalt, copper and lead cations from the aqueous solution. Typical extraction techniques include liquid-liquid extraction employing either mixer settlers or columns, liquid membrane extraction and selective supported membrane extraction.

REFERENCES:
patent: 3894139 (1975-07-01), Cardwell et al.
patent: 3931196 (1976-01-01), Swan
patent: 3950488 (1976-04-01), Skarbo et al.
patent: 3960762 (1976-06-01), Kroebel et al.
patent: 3966569 (1976-06-01), Reinhardt et al.
patent: 3966659 (1976-06-01), Oxe et al.
patent: 4029734 (1977-06-01), Stauter et al.
patent: 4051230 (1977-09-01), Miyauchi
patent: 4058585 (1977-11-01), MacKay et al.
patent: 4150092 (1979-04-01), Pitts
patent: 4162294 (1979-07-01), Witzke et al.
patent: 4173520 (1979-11-01), Demarthe et al.
patent: 4186174 (1980-01-01), Hunter et al.
patent: 4196076 (1980-04-01), Fujimoto et al.
patent: 4236981 (1980-12-01), Demarthe et al.
patent: 4242127 (1980-12-01), Muller et al.
patent: 4268395 (1981-05-01), Stewart
patent: 4278640 (1981-07-01), Allen et al.
patent: 4283224 (1981-08-01), Stewart
patent: 4324768 (1982-04-01), Sugahara et al.
patent: 4336236 (1982-06-01), Kolakowski et al.
patent: 4344924 (1982-08-01), Lucas et al.
patent: 4348367 (1982-09-01), Rickelton et al.
patent: 4353883 (1982-10-01), Rickelton et al.
patent: 4374780 (1983-02-01), Robertson
patent: 4382016 (1983-05-01), Rickelton et al.
patent: 4442073 (1984-04-01), Robinson et al.
patent: 4528167 (1985-07-01), Preston
patent: 4559203 (1985-12-01), Bauer et al.
patent: 4610861 (1986-09-01), Babjak
patent: 4619816 (1986-10-01), Rickelton
patent: 4647438 (1987-03-01), Sabot et al.
patent: 4670230 (1987-06-01), Wantanabe et al.
patent: 4702838 (1987-10-01), Babcock et al.
patent: 4721605 (1988-01-01), Brown et al.
M. Dejak et al, "Copper, Nickel, and Chrome Recovery in a Jobshop to Eliminate Waste Treatment and Sludge Disposal", Hazardous Waste & Hazardous Materials, vol. 4, No. 3, 1987.
Cyanex 272 Extractant.
G. Kordosky, "The Chemistry of Metals Recovery Using LIX Reagents", Henkel Corporation, 1987.
Hydrometallurgy, vol. 14, No. 3, Aug. 1985, pp. 387-393.

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