Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group va metal or arsenic
Patent
1982-02-11
1983-08-30
Thomas, Earl C.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group va metal or arsenic
423 99, 423617, 75 25, 75101R, 75121, C01G 2800
Patent
active
044016328
ABSTRACT:
Arsenic is recovered from flue dusts by forming an aqueous slurry of the dust, treating the slurry with SO.sub.2 gas to solubilize arsenic, and precipitating the arsenic as As.sub.2 O.sub.3 by means of sulfuric acid.
REFERENCES:
patent: 1148522 (1915-08-01), Martin et al.
patent: 1180765 (1916-04-01), Durant
patent: 1921706 (1933-08-01), Schopper
patent: 1952290 (1934-03-01), Schopper
patent: 3149964 (1964-09-01), Schwartz
Bloom Philip A.
Dolezal Henry
Madsen Brent W.
Shirts Monte B.
Brown William S.
The United States of America as represented by the Secretary of
Thomas Earl C.
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