| Original document(12 pages) Authorized document(12 pages) 中文版 |
The present invention provides one preprocessing method of sintered pyrite slag (before iron-smelting). In the said method, two stages of wet magnetic beneficiation are used, and the beneficiated sintered concentrate, after being mixed with other iron-containing material, fuel, and other material, is roasted into self-fusible sintered ore or acid pellets suitable for smelting in blast-furnaces. Compared with the original slag, the beneficiated sintered pyrite slag has an iron content 4-6% higher and a sulphur content 75% lower. The iron yield reaches 80% while the beneficiation rate is only 1.30. The sintered pellets, when smelted in blast-furnaces, may result in a qualification rate of pig iron as high as 100%. Therefore, the present invention opens up a new way for the utilization of sintered pyrite slag. |
Application Number
申请号 |
87108148 |
Application Date
申请日 |
1987.12.14 |
| Title 名称 |
Concentration and nodulizing technology of sintered pyrite slag |
Publication Number
公开号 |
1034682 |
Publication Date
公开日 |
1989.08.16 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
B03C1/00,C22B1/16 |
Applicant(s) Name
申请人 |
Shanghai Development & Research Center of Metallurgy Technology |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
ZHANG QIXIA |
| More information 更 多 信 息 |
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