Method for selectively separating a non-ferrous metal

Details Method for selectively separating a non-ferrous metal Method for selectively separating a non-ferrous metal

1990-11-05

1992-02-18

Andrews, Melvyn J.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

423150, 75961, C01G 900, C01G 4900

Patent

active

050892428

ABSTRACT:
A method for selectively separating Zn from an acidic aqueous solution containing ions of Zn and Fe obtained by leaching of blast furnace dust using hydrochloric acid comprises first precipitating Fe from the solution and then treating the resultent Zn-containing solution with an alkali to precipitate Zn.
The Zn-containing solution is treated in two stages; in the first precipitation step the pH is adjusted to from 4.0 to 4.3.

REFERENCES:
patent: 3164463 (1965-01-01), Graham et al.
patent: 4018680 (1977-04-01), Kupfer
patent: 4614543 (1986-09-01), Duyvesteyn et al.
Patent Abstracts of Japan, vol. 1, No. 120, 10/12/77, (JP 52-82616) H. Toda.
Patent Abstracts of Japan, vol. 1, No. 120, 10/12/77, (JP52-82617) H. Toda.
Patent Abstracts of Japan, vol. 2, No. 48, 5/31/78, (JP 53-4705) T. Kozaki.

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