Method and apparatus for preparing a reducing gas stream

Details Method and apparatus for preparing a reducing gas stream Method and apparatus for preparing a reducing gas stream

1978-05-11

1979-11-27

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 35, 266140, 432222, C22B 512

Patent

active

041759516

ABSTRACT:
A method and apparatus for preparing a hot reducing gas for introduction into a vessel containing ore oxide in order to react with the ore oxide to produce reduced metal including the steps of combusting a fuel with no more than a stoichiometric amount of air to produce a heating gas having an absence of available oxygen, mixing the heating gas with an initially preheated reducing gas stream in order to heat the initially preheated reducing gas stream without spending any of the reducing strength thereof and further to mixing such air and fuel to produce a heating gas which will cause the formation of additional reducing constituents.

REFERENCES:
patent: 3128174 (1964-04-01), Celada
patent: 4069020 (1978-01-01), Bond

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