Hydrometallurgical treatment of metallurgical dust

Details Hydrometallurgical treatment of metallurgical dust Hydrometallurgical treatment of metallurgical dust

1980-06-06

1982-06-01

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iva metal

423109, C01G 906, C01G 2120

Patent

active

043327770

ABSTRACT:
Process and apparatus for hydrometallurgical treatment of metallurgical dust by acid leaching followed by a solid-liquid separation. The invention is characterized in that the leaching phase is effected by moderate acid attack (pH at the end of the reaction about 4 or 5) and in which a supplementary solid-solid separation stage is provided, before the solid-liquid separation or after. The invention is applicable to all dusts resulting from treatment of metals, notably ironworking dusts, and particularly those formed in blast furnaces so as to permit the separation and recovery of useful elements contained therein, such as iron, zinc and lead.

REFERENCES:
patent: 2264337 (1941-12-01), Seguire
patent: 3375069 (1968-03-01), Duval
patent: 3676107 (1972-07-01), Barnard
patent: 4107265 (1978-08-01), Ropenack
patent: 4124462 (1978-11-01), Reinhardt

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