Method and apparatus for reducing metal oxide

Details Method and apparatus for reducing metal oxide Method and apparatus for reducing metal oxide

1978-03-17

1979-12-04

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 40, 75 63, 75 65R, 75 93R, C21C 700

Patent

active

041770633

ABSTRACT:
Method of reducing metal oxide on the surface of a bath of molten metal, wherein the geometry and the heat source in the bath are arranged so as to create a temperature difference on the surface of the bath comprising a first hotter region A and a second cooler region B, with a temperature difference between regions A and B of about 500.degree.-700.degree. C. which comprises supplying metal oxide to the hotter region A, circulating the molten metal bath by means of convection currents so that the surface of the bath moves continuously from region A to region B, thereby carrying the metal oxide continuously on the surface of the bath from region A to region B, contacting the surface of the bath with a reducing atmosphere, thereby reducing the continuously moving metal oxide to metal, and removing metal at the region B by means of a lip present in the bath.

REFERENCES:
patent: 3326671 (1967-06-01), Worner
patent: 3572671 (1971-03-01), Worner
patent: 3827877 (1974-08-01), Pantke

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