发明名称 |
VERFAHREN ZUM HERSTELLEN VON EISENSCHWAMM |
摘要 |
<p>PCT No. PCT/AT97/00238 Sec. 371 Date Aug. 4, 1998 Sec. 102(e) Date Aug. 4, 1998 PCT Filed Nov. 5, 1997 PCT Pub. No. WO98/20172 PCT Pub. Date May 14, 1998A process for producing sponge iron by directly reducing particulate, iron-oxide-containing material, wherein reducing gas that is formed from carbon carriers and an oxygen-containing gas in a melt-down gasifying zone is introduced into a reduction zone that contains the iron-oxide-containing material, characterized by the combination of the following characteristic features: (i) to the reduction zone, a reducing gas is fed which contains between iron-oxide-containing material 20 g and 100 g per Nm3 of a dust having a carbon content of between 30 mass % and 70 mass %; and (ii) the iron-oxide-containing material is exposed to the reducing gas for a time period that exceeds the period for a complete reduction. The process of the invention renders it possible to produce a sponge iron of elevated carbon content.</p> |
申请公布号 |
DE59703015(D1) |
申请公布日期 |
2001.03.29 |
申请号 |
DE1997503015 |
申请日期 |
1997.11.05 |
申请人 |
VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH, LINZ;POHANG IRON & STEEL CO. LTD., POHANG;RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INC. FOUNDATION |
发明人 |
KEPPLINGER, WERNER;WALLNER, FELIX;GENNARI, UDO |
分类号 |
C21B13/00;C21B13/14;(IPC1-7):C21B13/14 |
主分类号 |
C21B13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|