| 硫脲法从废旧电路板中浸取金、银的研究 |
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| 引用本文： | 徐秀丽,李晶莹.硫脲法从废旧电路板中浸取金、银的研究[J].青岛大学学报(工程技术版),2011,26(2):69-73. |
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| 作者姓名： | 徐秀丽 李晶莹 |
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| 作者单位： | 青岛科技大学环境与安全工程学院,山东青岛,266042 |
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| 摘 要： | 废旧电路板中含有丰富的可回收金属Cu,Au,Ag,Pt,Pb等,其处理处置、无害化、资源化成为经济发展中急需解决的问题。采用硫脲法对废旧电路板中的金、银进行浸取实验,主要考察了反应时间、反应温度、硫脲浓度、Fe3＋的质量浓度、物料粒度对金及银浸出率的影响。结果表明,在最佳浸取条件下,金、银都能达到理想的浸取效果,金和银的最高浸取率分别达到90.87%和59.82%。硫脲提金法因溶金速度快,浸出时低毒、价格低廉、高效、有利于环保、干扰离子少等优点而成为取代氰化提金的绿色浸金方法。
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| 关 键 词： | 硫脲 废旧电路板 金 银 |
Experimental Study of Thiourea Leaching Gold and Silver from Waste Circuit Boards |
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| XU Xiu-li,LI Jing-ying.Experimental Study of Thiourea Leaching Gold and Silver from Waste Circuit Boards[J].Journal of Qingdao University(Engineering & Technology Edition),2011,26(2):69-73. |
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| Authors: | XU Xiu-li LI Jing-ying |
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| Affiliation: | XU Xiu-li,LI Jing-ying(School of Environment and Safety Engineering,Qingdao University of Science & Technology,Qingdao 266042,China) |
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| Abstract: | Waste circuit boards contain a rich resource of recoverable metals such as Cu,Au,Ag,Pt,and Pb.Its disposal,harmless and recycling have become the key problems solved urgently with the economic development.Thiourea leaching gold and silver from the waste circuit board was carried out,and the influence of leaching time,react temperature,thiourea concentration,Fe3+ concentration and material particle size on gold leaching rates were investigated.The results showed that,Gold and silver leaching rates can reach ... |
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| Keywords: | thiourea waste circuit boards gold silver |
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