Method of treating a plating sludge

Details Method of treating a plating sludge Method of treating a plating sludge

1977-06-13

1978-10-31

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 3, 75 25, 75 29, 75 44S, 264111, 264117, 264122, C21B 1300, C22B 124

Patent

active

041232577

ABSTRACT:
A method of treating a plating sludge is disclosed, wherein a plating sludge, whose water content is decreased to not higher than 10% by weight, is mixed with scale, dust, both of which are formed in the alloy steel-making step, a binder and a carbonaceous material, and water is added to the mixture to adjust the water content of the mixture to 7-30% by weight, the mixture is kneaded and then molded into a briquet, and the briquet is subjected to a strength-improving treatment. The resulting briquet can be used as a raw material for ferroalloy. When the briquet is subjected to a reduction smelting to recover a metal, the metal can be used as a raw material for alloy steel.

REFERENCES:
patent: 2085178 (1937-06-01), Acken
patent: 2277663 (1942-03-01), Francis et al.
patent: 2417493 (1947-03-01), Holz
patent: 3870507 (1975-03-01), Allen
patent: 4004918 (1977-01-01), Fukuoka et al.
patent: 4047939 (1977-09-01), Morrison

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