高级搜索

废旧印刷线路板矿浆电解过程中金属的浸沉规律

,  , 

downloadPDF

上一篇

下一篇

杨德泽, 楚莹莹, 陈梦君. 废旧印刷线路板矿浆电解过程中金属的浸沉规律[J]. 环境工程学报, 2018, 12(3): 947-955. doi: 10.12030/j.cjee.201708077
引用本文: 杨德泽, 楚莹莹, 陈梦君. 废旧印刷线路板矿浆电解过程中金属的浸沉规律[J]. 环境工程学报, 2018, 12(3): 947-955. doi: 10.12030/j.cjee.201708077
shu
YANG Deze, CHU Yingying, CHEN Mengjun. Leaching and electrodeposition regularities of metals from waste printed circuit boards by slurry electrolysis[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 947-955. doi: 10.12030/j.cjee.201708077
Citation: YANG Deze, CHU Yingying, CHEN Mengjun. Leaching and electrodeposition regularities of metals from waste printed circuit boards by slurry electrolysis[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 947-955. doi: 10.12030/j.cjee.201708077
shu

废旧印刷线路板矿浆电解过程中金属的浸沉规律

  • 1.

    西南科技大学环境与资源学院，固体废弃物处理与资源化教育部重点实验室，绵阳 621010

  • 2.

    上海第二工业大学环境与材料工程学院，上海电子废弃物资源化产学研合作开发中心，上海 201209

  • 基金项目:

    国家自然科学基金资助项目 (21377104)

    西南科技大学重点科研平台专职科研创新团队建设基金项目 (14tdgk01)

    上海电子废弃物资源化产学研合作开发中心开放、开发基金

Leaching and electrodeposition regularities of metals from waste printed circuit boards by slurry electrolysis

  • 1.

    Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China

  • 2.

    Shanghai Cooperative Centre for WEEE Recycling, School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai 201209, China

  • Fund Project:

  • 摘要: 以废旧印刷线路板粉末（WPCBs）为原料，采用矿浆电解法回收WPCBs中金属，研究CuSO4·5H2O浓度、NaCl浓度、H2SO4浓度、电流大小、WPCBs加入量和电解时间对矿浆电解过程中金属的浸出和电沉积规律的影响。结果表明：CuSO4·5H2O浓度、WPCBs加入量对WPCBs中金属浸出率影响不大，增加NaCl浓度、H2SO4浓度、电流和电解时间有利于WPCBs中金属浸出；增加NaCl浓度、H2SO4浓度和电解时间有利于WPCBs中金属沉积，而增加CuSO4·5H2O浓度、WPCBs加入量和电流不利于金属沉积。当CuSO4·5H2O浓度、NaCl浓度、H2SO4浓度、电流、WPCBs加入量和电解时间分别为30 g·L-1、60 g·L-1、170 g·L-1、0.5 A、3 g和9 h时，WPCBs中金属的浸出率和沉积率分别为92.28%和67.04%。
    Abstract: Several factors that influence metals leaching and electrodeposition from waste printed circuit boards (WPCBs) powders in slurry electrolysis were studied. The parameters, such as the concentration of CuSO4·5H2O, NaCl and H2SO4, electric current, WPCBs dosage and electrolytic time were examined in detail. The results indicated that the CuSO4·5H2O concentration and the WPCBs dosage show little effect on metal leaching and electrodeposition. Increasing the concentrations of NaCl and H2SO4, the electrical current and the electrolytic time have enhanced metal leaching. Increasing the concentrations of NaCl and H2SO4, the electrolytic time have promoted metals electrodeposition, whereas the increase of the concentration of CuSO4·5H2O, the WPCBs dosage and the current have demoted the electrodeposition of metals. The metals recovery rate in leachate and on the cathode have reached to 92.28% and 67.04%, respectively in an electrolytic system where 3 g of WPCBs powers was immerged in 100 mL of solution containing 30 g·L-1 CuSO4·5H2O, 60 g·L-1 NaCl and 170 g·L-1 H2SO4 undergone an electrolysis at a current of 0.5 A for 9 h.
  • 加载中
  • [1] KAMBEROVI? ?, KORA? M, RANITOVI? M.Hydrometallurgical process for extraction of metals from electronic waste: Part II: Development of the process for the recovery of copper from printed circuit boards (PCBs)[J].Association of Metallurgical Engineers of Serbia, 2011, 17(3):139-149
    [2] JADHAV U, SU C, HONG H.Leaching of metals from large pieces of printed circuit boards using citric acid and hydrogen peroxide[J].Environmental Science & Pollution Research International, 2016, 23:24384-24392 10.1007/s11356-016-7695-9
    [3] ARSHADI M, MOUSAVI S M.Simultaneous recovery of Ni and Cu from computer-printed circuit boards using bioleaching: Statistical evaluation and optimization[J].Bioresource Technology, 2014, 174:233-242 10.1016/j.biortech.2014.09.140
    [4] GHOSH B, GHOSH M K, PARHI P, et al.Waste printed circuit boards recycling: An extensive assessment of current status[J].Journal of Cleaner Production, 2015, 94:5-19 10.1016/j.jclepro.2015.02.024
    [5] GU W H, BAI J F, DONG B, et al.Enhanced bioleaching efficiency of copper from waste printed circuit board driven by nitrogen-doped carbon nanotubes modified electrode[J].Chemical Engineering Journal, 2017, 324: 122-129 10.1016/j.cej.2017.05.024
    [6] YAMANE L H, MORAES V T D, ESPINOSA D C R, et al.Recycling of WEEE: Characterization of spent printed circuit boards from mobile phones and computers[J].Waste Management, 2011, 31 (12):2553-2558 10.1016/j.wasman.2011.07.006
    [7] VERMA H R, SINGH K K, MANKHAND T R.Dissolution and separation of brominated epoxy resin of waste printed boards by using dimethyl formamide[J].Journal of Cleaner Production, 2016, 139:586-596 10.1016/j.jclepro.2016.08.084
    [8] SHI D Y, SHI Y F, LIU D W, et al.A review on recycling solder by mechanical separation methods from waste printed circuit boards[C]//Initiated and organized by the Palestine Polytechnic University (PPU).2015 4th International Conference on Energy and Environmental Protection (ICEEP 2015), 2015: 1032-1036
    [9] LAZAR M, IMRI? I, LENGYELOVA M, et al.Pyrometallurgical processing of electronics waste by plasma technology[J].Chemicke Listy, 2015, 109(7):543-549
    [10] KUMARI A, JHA M K, SINGH R P.Recovery of metals from pyrolysed PCBs by hydrometallurgical techniques[J].Hydrometallurgy, 2016, 165: 97-105 10.1016/j.hydromet.2015.10.020
    [11] HUANG J, CHEN M, CHEN H, et al.Leaching behavior of copper from waste printed circuit boards with Bronsted acidic ionic liquid[J].Waste Management, 2014, 34(2): 483-488 10.1016/j.wasman.2013.10.027
    [12] AWASTHI A K, ZENG X, LI J.Integrated bioleaching of copper metal from waste printed circuit board: A comprehensive review of approaches and challenges[J].Environmental Science & Pollution Research, 2016, 23(21): 1-16 10.1007/s11356-016-7529-9
    [13] YANG Y, CHEN S, LI S, et al.Bioleaching waste printed circuit boards by acidithiobacillus ferrooxidans and its kinetics aspect[J].Journal of Biotechnology, 2014, 173(6):24-30 10.1016/j.jbiotec.2014.01.008
    [14] LIU K, ZHANG Z Y, ZHANG F S.Direct extraction of palladium and silver from waste printed circuit boards powder by supercritical fluids oxidation-extraction process[J].Journal of Hazardous Materials, 2016, 318: 216-223 10.1016/j.jhazmat.2016.07.005
    [15] 张莎, 陈梦君, 王继钦, 等. 废旧印刷线路板电解过程中铜的分布特性[J]. 环境工程, 2017, 35(7): 211-125 10.13205/j.hjgc.201707024
    [16] ZHANG S, LI Y G, WANG R, et al.Superfine copper powders recycled from concentrated metal scraps of waste printed circuit boards by slurry electrolysis[J].Journal of Cleaner Production, 2017, 152:1-6 10.1016/j.jclepro.2017.03.087
    [17] ELDRED C.B, TUCSON, ARIC, et al.Method for treating metallic sulfides compounds: US 3464904[P/OL].[2017-08-02](1969-09-02).
    [18] PAUL R.K, GOLDEN, COLO.Process for the recovery metals from sulfides ores through electrolytic dissociation of the sulfides:US3673061[P/OL].[2017-08-02](1972-06-27).
    [19] 罗吉束. 矿浆电解的研究现状及展望[J]. 黄金科学技术, 2003, 11(6):37-42 10.3969/j.issn.1005-2518.2003.06.005
    [20] LUYIMA A, SHI H, ZHANG L.Leaching studies for metals recovery from waste printed wiring boards[J].Journal of the Minerals, Metals & Materials Society (TMS), 2011, 63(8):38-41
    [21] 董永全, 黄万抚. 隔膜电解技术的应用与发展[J]. 江西有色金属, 2002, 16(3):35-38 10.3969/j.issn.1674-9669.2002.03.011
    [22] 楚莹莹. 电解法从废旧印刷线路板中回收金属铜的技术开发[D]. 绵阳: 西南科技大学, 2016
    [23] ADIE G U, SUN L, ZENG X, et al.Examining the evolution of metals utilized in printed circuit boards[J].Environmental Technology, 2017, 38(13/14):1696-1701 10.1080/09593330.2016.1237552
    [24] WINAND R.Chloride hydrometallurgy[J].Hydrometallurgy, 1991, 27(3):285-316 10.1016/0304-386X(91)90055-Q
    [25] GOLDBACH S, MESSING W, DAENEN T, et al.Coupled effects of chloride ions and branch chained polypropylene ether LP-1TM on the electrochemical deposition of copper from sulfate solutions[J].Electrochimica Acta, 1998, 44(2/3):323-335 10.1016/S0013-4686(98)00112-1
    [26] SOMASUNDARAM M, SARAVANATHAMIZHAN R, BASHA C A, et al.Recovery of copper from scrap printed circuit board: Modelling and optimization using responses surface methodology[J].Powder Technology, 2014, 266(6):1-6 10.1016/j.powtec.2014.06.006
    [27] CHU Y Y, CHEN M J, CHEN S, et al.Micro-copper powders recovered from waste printed circuit boards by electrolysis[J].Hydrometallurgy, 2015, 156:152-157 10.1016/j.hydromet.2015.06.006
    [28] MATSUSHIMA H, BUND A, PLIETH W, et al.Copper electrodeposition in a magnetic field[J].Electrochimica Acta, 2008, 53(1):161-166 10.1016/j.electacta.2007.01.043
    [29] FUKUNAKA Y.Structural variation of electrodeposited copper film with the addition of an excess amount of H2SO4[J].Journal of the Electrochemical Society, 1990, 137(1):221-232 10.1149/1.2086445
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2339
  • HTML全文浏览数:  1944
  • PDF下载数:  510
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-03-22

废旧印刷线路板矿浆电解过程中金属的浸沉规律

  • 1. 西南科技大学环境与资源学院，固体废弃物处理与资源化教育部重点实验室，绵阳 621010
  • 2. 上海第二工业大学环境与材料工程学院，上海电子废弃物资源化产学研合作开发中心，上海 201209
基金项目:

国家自然科学基金资助项目 (21377104)

西南科技大学重点科研平台专职科研创新团队建设基金项目 (14tdgk01)

上海电子废弃物资源化产学研合作开发中心开放、开发基金

摘要: 以废旧印刷线路板粉末（WPCBs）为原料，采用矿浆电解法回收WPCBs中金属，研究CuSO4·5H2O浓度、NaCl浓度、H2SO4浓度、电流大小、WPCBs加入量和电解时间对矿浆电解过程中金属的浸出和电沉积规律的影响。结果表明：CuSO4·5H2O浓度、WPCBs加入量对WPCBs中金属浸出率影响不大，增加NaCl浓度、H2SO4浓度、电流和电解时间有利于WPCBs中金属浸出；增加NaCl浓度、H2SO4浓度和电解时间有利于WPCBs中金属沉积，而增加CuSO4·5H2O浓度、WPCBs加入量和电流不利于金属沉积。当CuSO4·5H2O浓度、NaCl浓度、H2SO4浓度、电流、WPCBs加入量和电解时间分别为30 g·L-1、60 g·L-1、170 g·L-1、0.5 A、3 g和9 h时，WPCBs中金属的浸出率和沉积率分别为92.28%和67.04%。

English Abstract

参考文献 (29)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心