RECOVERY OF MOLYBDENUM FROM AQUEOUS TUNGSTATE SOLUTIONS

摘要

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