| 溶剂萃取法提取电镀污泥氨浸出渣中的金属资源 |
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| 引用本文： | 万鹏,叶波清,杨志华,蒋展鹏. 溶剂萃取法提取电镀污泥氨浸出渣中的金属资源[J]. 环境科学, 1998, 19(3): 35-38 |
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| 作者姓名： | 万鹏 叶波清 杨志华 蒋展鹏 |
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| 作者单位： | 清华大学环境科学与工程系 |
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| 基金项目： | 国家“八五”科技攻关项目 |
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| 摘 要： | 研究硫酸浸出Ｐ５０７－煤油－硫酸体系萃取分离铁，钠皂－Ｐ２０４－煤油－硫酸体系共萃铬、铝、反萃取分离铬、铝工艺回收电镀污染氨浸渣中的金属。通过优化实验，确定了全流程的最佳工艺参数。结果表明，铁铬渣中的金属铬、铝和铁均可以高纯度盐类形式回收，可作为化学试剂使用，回收率达９５％以上。
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| 关 键 词： | 电镀污泥 废水处理 重金属回收 溶剂萃取 |
| 收稿时间： | 1997-10-03 |
Recovery of Metal from Iron-chromium Residue by Means of Solvent Extraction |
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| Zhu Wanpeng,Ye Boqing,Yang Zhihua and Jiang Zhanpeng. Recovery of Metal from Iron-chromium Residue by Means of Solvent Extraction[J]. Chinese Journal of Environmental Science, 1998, 19(3): 35-38 |
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| Authors: | Zhu Wanpeng Ye Boqing Yang Zhihua Jiang Zhanpeng |
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| Affiliation: | Dept.of Environmental Science and Engineering, Tsinghua Unviersity, Beijing 100084;Dept.of Environmental Science and Engineering, Tsinghua Unviersity, Beijing 100084;Dept.of Environmental Science and Engineering, Tsinghua Unviersity, Beijing 100084;Dept.of Environmental Science and Engineering, Tsinghua Unviersity, Beijing 100084 |
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| Abstract: | A solvent extraction process for valuable metals recovery from residue left ammonia carbonate leaching of plating sludge has been developed.This process include sulfuric leaching of the residue,separation of Fe3+ using PC-88A-kerosene-H2SO4 extraction system,co-extraction of Cr3+ and Al3+ using saponated D2EHPA-kerosene-H2SO4 extraction system and stripping separation of Cr3+ and Al3+.The optimum operation parameters of each unit were determined in laboratory.The results showed that the recovery rates of chromium,aluminum and iron are all more than 95%.CrCl3·6H2O,Al2(SO4)3·18H2O and FeCl3·6H2O with high purity were obtained in this process and could be used as chemical reagents. |
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| Keywords: | extraction iron-chromium residue plating sludge optimum operation parameters recovery rate. |
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