Hydrometallurgical treatment of soluble silicate-bearing zinc ma

Details Hydrometallurgical treatment of soluble silicate-bearing zinc ma Hydrometallurgical treatment of soluble silicate-bearing zinc ma

1977-10-06

1979-04-10

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

423109, 423339, C01B 3312, C01G 906

Patent

active

041488628

ABSTRACT:
A hydrometallurgical process for the treatment of a soluble silicate-bearing material for the recovery of its valuable metal content by leaching the silicate-bearing material at an elevated temperature with an aqueous solution of a mineral acid, precipitating silicic acid during the same stage in an easily settling and filtering form, the silicate-bearing material being added at such a rate that its concentration calculated as SiO.sub.2 corresponds to the simultaneously precipitating silicic acid quantity, and by finally separating the solid material from the valuable-metal-bearing solution.

REFERENCES:
patent: 1295080 (1919-02-01), Sulman
patent: 3434798 (1969-03-01), Menendeg et al.
patent: 3954937 (1976-05-01), Bodson
Mathew, I. et al., "The Processing of Zinc Silicate Ores--A Review", Metallurgical Transactions B, vol. 8B, Mar. 1977, pp. 85-91.
Iler, R., The Colloid Chemistry of Silica and Silicates, Cornell Univ. Press, N.Y. 1955, pp. 34, 36, 45-48, 159-169.

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