| 利用氯化胆碱基低共熔溶剂从氧化锌烟尘中选择性回收锌（英文） |
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| 引用本文： | 朱啸林,徐存英,唐杰,华一新,张启波,刘海,王祥,黄梦婷.利用氯化胆碱基低共熔溶剂从氧化锌烟尘中选择性回收锌（英文）[J].中国有色金属学会会刊,2019,29(10):2222-2228. |
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| 作者姓名： | 朱啸林 徐存英 唐杰 华一新 张启波 刘海 王祥 黄梦婷 |
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| 作者单位： | 昆明理工大学冶金与能源工程学院;昆明理工大学复杂有色金属资源清洁利用国家重点实验室 |
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| 基金项目： | Project(51764027) supported by the National Natural Science Foundation of China;Project(2014CB643404) supported by the National Basic Research Program of China |
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| 摘 要： | 低共熔溶剂(DESs)具有可调节的配位能力,是一种选择性回收金属的潜在浸出剂。本文作者采用氯化胆碱-尿素-乙二醇(ChCl-urea-EG)低共熔溶剂从氧化锌烟尘中选择性回收锌。当浆液浓度为50g/L、浸出温度为80°C、搅拌速度为600r/min时,锌的浸出率达到85.2%。该浸出过程受扩散控制,其活化能为32.1k J/mol。将浸出液直接用于电沉积锌,可得到纯锌镀层,电流效率达到82.6%,且ChCl-urea-EG低共熔溶剂可循环使用。该方法在处理含锌烟尘方面具有广阔的应用前景。
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| 关 键 词： | 低共熔溶剂 选择性浸出 氧化锌烟尘 锌 直接电沉积 |
| 收稿时间： | 21 December 2018 |
Selective recovery of zinc from zinc oxide dust using choline chloride based deep eutectic solvents |
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| Xiao-lin ZHU,Cun-ying XU,Jie TANG,Yi-xin HUA,Qi-bo ZHANG,Hai LIU,Xiang WANG,Meng-ting HUANG.Selective recovery of zinc from zinc oxide dust using choline chloride based deep eutectic solvents[J].Transactions of Nonferrous Metals Society of China,2019,29(10):2222-2228. |
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| Authors: | Xiao-lin ZHU Cun-ying XU Jie TANG Yi-xin HUA Qi-bo ZHANG Hai LIU Xiang WANG Meng-ting HUANG |
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| Affiliation: | 1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China;2. State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization, Kunming University of Science and Technology, Kunming 650093, China;1. Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan;2. Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan;1. Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA;2. Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA;1. Metallurgical & Materials Engineering Department, Faculty of Petroleum & Mining Engineering, Suez University, P.O. Box 43721, Suez, Egypt;2. Department of Environmental Engineering, College of Engineering at Al-Lith, Umm Al-Qura University, Corniche Road, Al-Lith City, Saudi Arabia;1. School of Metallurgy, Northeastern University, Shenyang 110004, People’s Republic of China;2. Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa 35487, USA;3. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Shenyang, People’s Republic of China |
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| Abstract: | Deep eutectic solvents (DESs) are a kind of potential lixiviant for selective metal processing due to their versatile complexation properties. In this study, we investigated the recovery of zinc from zinc oxide dust using choline chloride?urea? ethylene glycol (ChCl?urea?EG) DESs. The zinc extraction efficiency can be up to 85.2% when the slurry concentration is 50 g/L, leaching temperature is 80 °C and stirring speed is 600 r/min. The leaching process is controlled by the diffusion and the corresponding activation energy is 32.1 kJ/mol. The resultant solution was directly used for the electrodeposition of zinc. The pure zinc deposit is obtained with a current efficiency of 82.6%. Furthermore, the ChCl?urea?EG DESs can be recycled. This approach is shown to be promising for the recycling of zinc from the zinc-containing dust. |
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| Keywords: | deep eutectic solvent selective leaching zinc oxide dust zinc direct electrodeposition |
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