| Original document(6 pages) Authorized document(3 pages) 中文版 |
In the process, soft coal is used as fuel and reducer with the ratio of lead sulfide mine powder: iron powder: soft coal=100:7-10:11-15. The process includes: grinding, mixing, smelting, slagging etc. with a smelting temp. of 1250-1350 deg.C, within a period of 7-9 hrs. The process is simple, equipment investment-saving, low energy consumption, suitable for commercial prodn., partic. for small-sized and medium-sized enterprises. |
Application Number
申请号 |
89101983 |
Application Date
申请日 |
1989.03.30 |
| Title 名称 |
Metal lead prodn. directly from lead sulfide mineral |
Publication Number
公开号 |
1045995 |
Publication Date
公开日 |
1990.10.10 |
| Approval Pub. Date |
|
Granted Pub. Date |
1992.09.30 |
| International Classification 分类号 |
C22B13/02 |
Applicant(s) Name
申请人 |
Zhu Songbo |
| Address 地址 |
|
| Inventor(s) Name 发明人 |
Zhu Hai, Zhu Jianguo |
| Attorney & Agent 代理人 |
ZHAN XIHAN ZHU YUDAN |
| More information 更 多 信 息 |
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