RECOVERY OF MOLYBDENUM FROM AQUEOUS TUNGSTATE SOLUTIONS Russian patent published in 2002 - IPC

Abstract RU 2186864 C2

FIELD: hydrometallurgy. SUBSTANCE: process involves precipitation of tungstic acid remaining molybdenum in solution by way of adding hydrogen peroxide and hydrochloric acid to pH=0. Precipitation is performed from solutions containing 30 to 130 g/cu.dm tungsten and 0.3 to 5.0 g/cu.dm molybdenum in presence of salicylic acid. Invention can be applied for treating waste waters. EFFECT: reduced consumption of acid and enabled obtaining dense easily filtration- separable tungstic acid precipitate with low molybdenum content. 8 tbl, 8 ex

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RU 2 186 864 C2

Authors

Voropanova L.A.

Dates

2002-08-10—Published

2000-04-14—Filed