Title: Method for producing thermal sponge iron
Application Number: 87102213 Application Date: 1987.03.20
Publication Number: 1017078 Publication Date: 1988.03.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C21B13/02
Applicant(s) Name: Elsa Co. Address:
Inventor(s) Name: Bithela-Noweya;Houlh. Auktavio
Attorney & Agent: YANG LIQIN WU HONGLIANG
Abstract:
    A method for the direct gaseous reduction of iron ore to sponge iron at an elevated temperature suitable for hot briquetting, wherein a hot reducing gas is circulated upwardly through a descending body of iron ore and a make-up reducing gas stream is added to the circulating gas stream. A sponge iron product having a predetermined desired degree of carburization in the range 0.5% to 4% is obtained by adding a controlled flow of natural gas or other methane-containing gas to said make-up gas stream or to said circulating gas stream.
Time: 7
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