METHOD OF EXTRACTION OF TUNGSTEN (VI) FROM AQUEOUS SOLUTION Russian patent published in 2001 - IPC

Abstract RU 2176677 C2

FIELD: extraction of substances by means of sorbents and/or flocculants; ferrous and non-ferrous metallurgy; cleaning of industrial and domestic sewage. SUBSTANCE: method includes treatment of solution and sorbent, bringing solution and sorbent in contact and sorption of tungsten at pH < 7; sorption is effected by means of bentonite clay at correction of pH value and continuous mixing of solution for 4-7 h. EFFECT: low cost of method due to cheap natural sorbent. 3 dwg, 4 ex

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RU 2 176 677 C2

Authors

Voropanova L.A.

Dates

2001-12-10Published

1998-10-06Filed