Process of hydrometallurgical treatment for eliminating impuriti

Details Process of hydrometallurgical treatment for eliminating impuriti Process of hydrometallurgical treatment for eliminating impuriti

1979-10-24

1981-06-30

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

423109, 423140, 423326, C22B 1926

Patent

active

042762693

ABSTRACT:
In a hydrometallurgical treatment for eliminating one or more metal impurities from a solution containing a metal to be extracted and said metal impurities, a silicate is added to the solution forming in situ dissolved silicic acid and precipitating the metal impurities at a pH of between 1.5 and 4.5 to form a solid silicate residue.

REFERENCES:
patent: 1185757 (1916-06-01), Araki
patent: 1751955 (1930-03-01), Stoewener
patent: 2599816 (1952-06-01), Ellsworth
Gordon et al., "Improved Leaching Techniques in the Electrolytic Zinc Industry, " Metallurgical Transactions B, Mar. 1975, pp. 43-53.

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