Process of hydrometallurgical treatment for eliminating...

Details Process of hydrometallurgical treatment for eliminating... Process of hydrometallurgical treatment for eliminating...

C - Chemistry, Metallurgy

01

G

53/342, 22/89

C01G 9/06 (2006.01) C02F 1/72 (2006.01) C02F 9/00 (2006.01) C04B 7/24 (2006.01) C04B 18/04 (2006.01) C22B 3/46 (2006.01)

Patent

CA 1115024

ABSTRACT OF THE DISCLOSURE A process of hydrometallurgical treatment for removing metal impurities from zinc sulfate solution containing Fe+++ ions includes adding to said solution a silicate capable of forming dissolved silicic acid in situ, and a neutralizing base to provide a pH between 1.5 and 4.5. The metal impurities are precipitated as a solid residue on a base of iron silicate.

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