| Original document(9 pages) 中文版 |
A process for treating low-grade zinc oxide ore, whose Zn content is lower than 20%, features that the aqueous solution of NaOH is used as infusion to make the Zn in the form of sodium zincate come in the solution, and the aqueous solution of Na2S is used as precipitant to make impurities (pb, Cu, etc) come in dregs. |
Application Number
申请号 |
02133784 |
Application Date
申请日 |
2002.09.17 |
| Title 名称 |
Method of treating low grade zinc oxide ore |
Publication Number
公开号 |
1414121 |
Publication Date
公开日 |
2003.04.30 |
| Approval Pub. Date |
|
Granted Pub. Date |
|
| International Classification 分类号 |
C22B3/12,C22B3/46 |
Applicant(s) Name
申请人 |
Kunming Yeyan New-material Co., Ltd. |
| Address 地址 |
650031 |
| Inventor(s) Name 发明人 |
Ma Qikun, Li Xiaoyang |
| Attorney & Agent 代理人 |
chen zuo |
| More information 更 多 信 息 |
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