酸化鉄含有材料の直接還元における金属ダストの回避法 - Voest Arpine Industrie Unragenbau Geembacher

Title:

酸化鉄含有材料の直接還元における金属ダストの回避法

Document Type and Number:

Japanese Patent JP3564140

Kind Code:

B2

Abstract:

PCT No. PCT/AT95/00123 Sec. 371 Date Jan. 15, 1997 Sec. 102(e) Date Jan. 15, 1997 PCT Filed Jun. 20, 1995 PCT Pub. No. WO96/00304 PCT Pub. Date Jan. 4, 1996A direct reduction process is disclosed for iron-oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reduction of the iron-oxide-containing materials and is used as reduction gas for directly reducing iron-oxide-containing materials. In order to avoid or reduce metal dusting caused by an increased CO content of the reduction gas with a simple technique and equipment, the CO/CO2 ratio of the reduction gas is set at a predetermined value from 1 to 3.

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Inventors:

Gerald, Cologne
Kepengel, Werner Leopold
Schenck, Johannes
Phip, Roy Hubert Jr.

Application Number:

JP50263296A

Publication Date:

September 08, 2004

Filing Date:

June 20, 1995

Export Citation:

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Assignee:

Voest Arpine Industrie Unragenbau Geembacher
Briffer International Limited

International Classes:

C21B13/00; F27B15/10; F27D17/00; (IPC1-7): C21B13/00

Attorney, Agent or Firm:

Masatake Shiga

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