Method of reducing ore using a plasma burner

Details Method of reducing ore using a plasma burner Method of reducing ore using a plasma burner

1975-02-10

1977-04-26

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 38, 75 40, C21C 552

Patent

active

040198952

ABSTRACT:
A method of producing metal from an oxidic material wherein final reduction and melting of a pre-reduced oxidic material takes place in the presence of a solid reduction agent in lump form, and wherein the reducing gas leaving the final reduction stage is used for pre-reducing the incoming oxidic material without the presence of solid reduction agent, and wherein extra energy is supplied to the final reduction and melting stage by means of a gaseous energy carrier and that the gas leaving the pre-reduction stage is used as fuel for pre-heating incoming oxidic material.

REFERENCES:
patent: 2182009 (1939-12-01), Wiberg
patent: 2919983 (1960-01-01), Halley
patent: 3295955 (1967-01-01), Cordier
patent: 3558791 (1971-01-01), Gachev et al.

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