Resin sorption process for extracting tungsten

Details Resin sorption process for extracting tungsten Resin sorption process for extracting tungsten

1980-09-15

1981-07-14

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

75101BC, 423279, 423DIG14, C01G 4100

Patent

active

042786436

ABSTRACT:
In a resin sorption process for recovering tungsten from solutions containing high levels of contaminating boron by employing a resin copolymer of 8-hydroxyquinoline, a polyamine, resorcinol, and formaldehyde (HPRF resins), the improvement comprises a two step desorption of metal values from the loaded resin consisting of a first step of washing the loaded resin with a solution of a weakly acidic salt to remove a portion of the boron from the loaded resin, followed by a second step of washing the loaded resin with a solution of a weakly basic salt to remove a portion of the tungsten from the loaded resin, whereby the tungsten recovered is substantially free of contaminating boron.

REFERENCES:
patent: 4180628 (1979-12-01), Marchant et al.
Altringer et al., "Bureau of Mines, RI8315", Dept. of Interior, 1978, pp. 1-15.

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