Process for extracting tungsten from alkali metal tungstate solu

Details Process for extracting tungsten from alkali metal tungstate solu Process for extracting tungsten from alkali metal tungstate solu

1978-08-03

1979-11-20

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423DIG14, 75101BE, C01G 4100

Patent

active

041751094

ABSTRACT:
A tungsten extraction process wherein tungsten values are extracted from an aqueous alkali metal tungstate solution by an organic extractant, then stripped from the extractant is improved by using an organic solution consisting essentially of from about 6 to about 10 percent by volume an extractant that is a mixture of trialkyl amines wherein the major constituent is tri-isooctyl amine and from about 90 to about 94 percent by volume of a solvent that is a mixture of alkyl benzenes having molecular weights of either 120, 134 or 148.

REFERENCES:
patent: 3052516 (1962-09-01), Drobnick et al.
patent: 3158438 (1964-11-01), Kurtak
patent: 3770869 (1973-11-01), Kim et al.
patent: 3804941 (1974-04-01), Coad et al.
patent: 4092400 (1978-05-01), Zbramek et al.
Coleman, "Nuclear Science & Engineering", vol. 17, 1963, pp. 274-286.

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