| 两段浸出锡冶炼烟尘中Zn、Cd与Cl的研究 |
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| 引用本文： | 徐万立,张璋,袁海滨.两段浸出锡冶炼烟尘中Zn、Cd与Cl的研究[J].矿冶,2022,31(1). |
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| 作者姓名： | 徐万立 张璋 袁海滨 |
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| 作者单位： | 云南锡业股份有限公司锡业分公司,云南锡业股份有限公司锡业分公司,云南锡业股份有限公司锡业分公司 |
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| 基金项目： | 高层次科技人才及创新团队选拔专项-技术创新人才培养对象项目(2019HB086) |
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| 摘 要： | 富含Zn、Cd和Cl的锡冶炼烟尘,直接返回熔炼对粗锡直收率与质量会有十分不利的影响,所以在返回熔炼前需要进行预先除杂。试验通过两段浸出的方式分别脱出烟尘中的Zn、Cd和Cl三种杂质。结果表明,在优化试验条件下,一段水溶段有90.82%的Cd、95.78%的Cl和39.68%的Zn被浸出；再经二段硫酸浸出,Zn综合浸出率达79.83%,Cd综合浸出率达99.31%,Cl综合浸出率达96.02%。
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| 关 键 词： | 两段浸出、锡冶炼烟尘、Zn浸出、Cd浸出、Cl浸出 |
| 收稿时间： | 2021/12/7 0:00:00 |
| 修稿时间： | 2021/12/20 0:00:00 |
Study on Zn, Cd and Cl in the Dust of Tin Smelting by Two-stage Leaching |
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| xu wan li,zhang zhang and yuan haibin.Study on Zn, Cd and Cl in the Dust of Tin Smelting by Two-stage Leaching[J].Mining & Metallurgy,2022,31(1). |
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| Authors: | xu wan li zhang zhang and yuan haibin |
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| Affiliation: | Tin Branch Company of Yunnan Tin Company Limited,Tin Branch Company of Yunnan Tin Company Limited,Tin Branch Company of Yunnan Tin Company Limited |
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| Abstract: | The dust from tin smelting rich in Zn, Cd and Cl return directly to the smelting process, will have a very negative effect on the yield and quality of crude tin. Therefore, impurities of the dust needs to be removed in advance before returning to smelting. In this study, by two-stage leaching to removed Zn, Cd and Cl in the dust respectively. The results show that 90.82% Of Cd, 95.78% of Cl and 39.68% of Zn are leached out of a water-soluble section under optimized test conditions; after the second stage sulfuric acid leaching, the comprehensive leaching rate of Zn, Cd and Cl reaches 79.83%, 99.31% and 96.02% respectively. |
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| Keywords: | Two-stage leaching Tin smelting dust Zn leaching Cd leaching Cl leaching |
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