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| 在DMF中用氯化铜氧化浸出钯的研究 |
| Research on the Leaching of Palladium in Anhydrous DMF-Copper Chloride System |
| Received:December 14, 2019 |
| DOI： |
| 中文关键词: 有色金属冶金 浸出钯 有机溶剂 氯化铜 沉淀 |
| 英文关键词: non-ferrous metal metallurgy leaching palladium organic solvent copper chloride precipitation |
| 基金项目:国家重点研发计划(2018YFC1902300)；上海第二工业大学研究生项目基金(A01GY18F022-d04)；上海第二工业大学校重点学科建设项目(XXKZD1602) |
| Author Name | Affiliation | E-mail | | ZHOU Yong-jie | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | 741409618@qq.com | | ZHANG Cheng-long | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | clzhang@sspu.edu.cn | | WANG Rui-xue | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | | | MA En | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | | | TONG Jun | School of Environment Science and Spatial Informatics,China University of Mining and Technology, Xuzhou 221116, Jiangsu, China | | | JIANG Jia-chao | School of Environment Science and Spatial Informatics,China University of Mining and Technology, Xuzhou 221116, Jiangsu, China | | | BAI Jian-feng | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | | | WANG Jing-wei | Resource Recycling Science and Engineering Center, Shanghai Cooperative Centre for WEEE Recycle,Shanghai Polytechnic University, Shanghai 201209, China | |
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| 中文摘要: |
| 在N,N-二甲基甲酰胺(DMF)为溶剂的无水体系中，用氯化铜(CuCl2)氧化浸出钯；以单因素试验及响应面优化法进行了浸出条件优化研究。结果表明，钯在浸出液中以Pd(II)形态存在；钯的浸出率随CuCl2浓度升高而增加，随温度升高而增加，随浸出时间增加而增加，随固液比增大而增加。在CuCl2浓度为1.25 mol/L，固液比为1:700 g/mL，80℃浸出90 min的优化条件下，钯的浸出率可以达到98.5%。浸出液中加入丁二酮肟溶液后，96.3%的钯和5%的铜能够沉淀下来，方法可为电子废料中钯的回收提供参考。 |
| 英文摘要: |
| In anhydrous N,N-dimethylformamide (DMF) solvent, palladium was extracted by oxidizing copper chloride (CuCl2). Using single factor test and response surface optimization method, the optimal leaching conditions were studied. The results showed that palladium existed in the form of Pd(II) in the leaching solution, and that the leaching rate of palladium increased with CuCl2 concentration, leaching temperature, leaching time, and the solid-liquid ratio. Under the optimized conditions: CuCl2 concentration of 1.25 mol/L, solid-to-liquid ratio of 1:700 g/mL, and leaching 90 min at 80°C, the leaching rate of palladium can reach 98.5%. By adding diacetyloxime to the leaching solution, 96.3% of palladium and 5% of copper can be precipitated. The proposed method can provide a reference for the recovery of palladium from electronic waste. |
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