从废旧太阳能电池板中回收银  

Experimental Study on Silver Recovery from Waste Solar Panels

作　　者：黄庆[1] 邓毅 郁丰善 朱欣杰 张承龙[1] 苑文仪[1] 顾卫华[1] HUANG Qing;DENG Yi;YU Feng-shan;ZHU Xin-jie;ZHANG Cheng-long;YUAN Wen-yi;GU Wei-hua(School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai,201209,China;Solid Waste and Chemicals Management Center,MEE,Beijing 100029,China;College of New Energy and Materials,China University of Petroleum,Beijing 102249,China;Jiangxi Han’s Precious Metals Co.,Ltd.,Shangrao 335500,Jiangxi,China;ShanghaiWaigaoqiao Free Trade Zone Environmental Protection Service Co.,Ltd.,Shanghai 200131,China)

机构地区：[1]上海第二工业大学资源与环境工程学院,上海201209 [2]生态环境部固体废物与化学品管理技术中心,北京100029 [3]中国石油大学(北京)新能源与材料学院,北京102249 [4]江西省汉氏贵金属有限公司,江西上饶335500 [5]上海外高桥保税区环保服务有限公司,上海200131

出　　处：《有色金属（冶炼部分）》2022年第2期48-53,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFC1902303);上海市科委科普项目(21DZ2304300);江西省主要学科学术和技术带头人培养计划项目(20194BCJ22027);江西省首届双千计划培养类高端科技创新人才项目(jxsq2019201113)。

摘　　要：光伏电站的大力开发同时伴随着大量废旧太阳能电池板的产生,亟需开发环保高效的技术解决废旧太阳能电池板带来的问题。探讨了废旧太阳能电池板预处理技术及其带来的损失情况,再利用正交试验优化了影响废旧太阳能电池板中银高效提取的因素及其影响程度。结果表明,人工拆解和热处理都会造成废旧太阳能电池板质量的损失,且拆解程度越深,损失越大。废旧太阳能电池板中银提取的最佳条件为:甲磺酸浓度40%、过氧化氢浓度20%、反应时间2.5 h、反应温度70℃,银的浸出率可达97.85%,相对标准偏差为2.16%。各因素对银浸出率的影响程度大小为:甲磺酸浓度>反应时间>反应温度>过氧化氢浓度。The vigorous development of photovoltaic power stations is accompanied by generation of a large number of waste solar panels.It is urgent to develop environmentally efficient technologies to solve the problems brought by waste solar panels.Pretreatment technology of waste solar panels and loss caused by it were discussed,and then the factors affecting efficient extraction of silver from waste solar panels and their impact were optimized by orthogonal experiment.The results indicate that both manual disassembly and heat treatment will cause weight loss of waste solar panels,and the more thorough the disassembly,the greater the loss.Silver leaching rate is 97.85% with RSD of 2.16% under the optimum conditions for silver extraction from waste solar panels including mesylate concentration of 40%,hydrogen peroxide concentration of 20%,reaction time of 2.5 h,and reaction temperature of 70℃.The influence sequence of each factor on silver leaching rate is mesylate concentration>reaction time>reaction temperature>hydrogen peroxide concentration.

关 键 词：废旧太阳能电池板 单因素试验 正交试验 提取 银 

分 类 号：TF832[冶金工程—有色金属冶金]