Extracting Ammonium Maratungstate by Solvent

Solvent extraction is besed on ammonium tungstate solution of the ester (D2EHPA) or tributyl phosphate (TBP) and kerosene solvent composition of the organic phase with an organic extractant di (2-ethylhexyl), and extracted ammonium tungstate in an ammonium ion, so that Ph value to 2 to 4, generated by digestion of ammonium metatungstate solution. Concentrated crystallization, filtration separation, drying products.

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