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| Research on Multipurpose Utilization of Zinc Ash from Lead Metallurgy |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Zinc ash; Additive ; Leaching residues ; Zinc oxide |
| YANG Shao-wen,CAO Yao-hua,LI Qi,GAO Zhao-guo |
| Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China |
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| Abstract: |
| The zinc ash of lead refinery is used as raw material and vitriol as leaching agent,the zinc leaching rate is 99%,then the zinc oxide with >98% purity is made by ammonium bicarbonate precipitation process.The following factors on the zinc leaching rate are discussed n detail: sulfuric acid concentration,additive and temperature,etc. |
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