Process for extracting tungsten from alkali metal tungstate...

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

C - Chemistry, Metallurgy

22

B

53/148

C22B 34/36 (2006.01) C01G 41/00 (2006.01) C22B 3/28 (2006.01)

Patent

CA 1119003

IMPROVED PROCESS FOR EXTRACTING TUNGSTEN FROM ALKALI METAL TUNGSTATE SOLUTIONS ABSTRACT OF THE DISCLOSURE 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 essen- tially 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. . . `

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