Process for recovering arsenic trioxide from exhaust gas of smel

Details Process for recovering arsenic trioxide from exhaust gas of smel Process for recovering arsenic trioxide from exhaust gas of smel

1984-10-12

1986-05-13

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group va metal or arsenic

423617, C01B 2700

Patent

active

045885648

ABSTRACT:
In the process for recovering arsenic trioxide from scrubbing water used to scrub the flue gas of sulfide ore smelting, the crude arsenic trioxide crystals collected from the scrubbing solution which contains plaster as an impurity is purified by treating it with hydrochloric acid of a concentration of 50-150 g/l at a temperature not higher than 30.degree. C.

REFERENCES:
patent: 1921706 (1933-08-01), Schopper
patent: 2959467 (1960-11-01), Yusuf et al.
patent: 3107977 (1963-10-01), Boruali et al.
patent: 4401632 (1983-08-01), Madsen et al.

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