Recovery of metal values from waste printed circuit boards using an alkali fusion–leaching–separation process
作者: Xueyi GuoJingxin LiuHong QinYang LiuQinghua TianDong Li
作者单位: 1School of Metallurgy & Environment, Central South University, Changsha, 410083, China
2Cleaner Metallurgical Engineering Research Center, Nonferrous Metal Industry of China, Changsha, 410083, China
刊名: Hydrometallurgy, 2015, Vol.156 , pp.199-205
来源数据库: Elsevier Journal
DOI: 10.1016/j.hydromet.2015.06.011
关键词: Waste printed circuit boardsAlkali fusion processCopperAmphoteric metals
原始语种摘要: Abstract(#br)An efficient alkali fusion–leaching–separation process is developed to recover metals in crushed metal enrichment (CME) which originated from waste printed circuit boards (PCBs). Impacts of fusion parameters on metals conversions were systematically investigated. In the fusion–leaching process, amphoteric metals such as tin, lead, zinc and aluminum in the CME were leached out, while leaving copper and precious metals in the residue. Subsequently, metals in solution were further extracted via precipitation processes, and metals in the residue were recovered using an acid leaching–electrowinning process. Cathode copper, nano-Cu 2 O, CaSnO 3 /CaSn(OH) 6 crystal and mixture of PbS–ZnS were obtained as the final products of this process. By optimizing the experimental conditions,...
全文获取路径: Elsevier  (合作)
影响因子:2.169 (2012)