Recovery of tungsten values from alkali tungstate solutions by s

Details Recovery of tungsten values from alkali tungstate solutions by s Recovery of tungsten values from alkali tungstate solutions by s

1981-08-13

1982-11-23

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

75101BE, C01G 4100

Patent

active

043605036

ABSTRACT:
In a two component extraction system for producing ammonium tungstate from aqueous alkali metal tungstate from aqueous alkali metal tungstate solution, the stripped organic is washed to form a wash solution which is mixed with concentrated ammonia solution to form an aqueous ammonia solution which is mixed with product ammonia tungstate and fed as the stripping solution for contacting the loaded organic extractant.

REFERENCES:
patent: 3158438 (1964-11-01), Kurtak
patent: 3293004 (1966-12-01), Musgrove et al.
patent: 3598519 (1971-08-01), Chiola et al.
patent: 4175109 (1979-11-01), Kim

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