Recovery of tungsten from brines

Details Recovery of tungsten from brines Recovery of tungsten from brines

1982-07-13

1983-10-11

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 87, 423276, 423511, C01G 4100

Patent

active

044091893

ABSTRACT:
Tungsten is recovered from alkaline brines by: (1) initial loading of metal values on an 8-hydroxyquinoline-resorcinol-formaldehyde resin, (2) selective desorption of boron, arsenic and sulfur from the resin by means of an NH.sub.4 Cl--NH.sub.4 OH solution having a pH of about 7.5 to 9.5, and (3) desorption of tungsten from the resin by means of water or an alkaline solution.

REFERENCES:
patent: 4180628 (1979-12-01), Marchant et al.
patent: 4241028 (1980-12-01), Borrowman et al.
patent: 4278643 (1981-07-01), Natansohn et al.
patent: 4279869 (1981-07-01), Coulson
Altringer et al., "Bureau of Mines-RI 8315", Dept. of Interior, Wash., D.C., 1978.

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