已经得到个称赞     给我点赞
  • 教授 硕士生导师
  • 入职时间:2010-03-19
  • 所在单位:冶金与环境学院
  • 学历:博士研究生毕业
  • 办公地点:理学楼222室
  • 性别:
  • 联系方式:18684685548
  • 学位:博士学位
  • 在职信息:在职
  • 毕业院校:中南大学
  • 学科:环境科学与工程
    冶金工程
论文成果
当前位置: 中文主页 >> 论文成果
Comprehensive recovery of Sn-Cu bearing residue and preparation of high purity SnO2 and CuSO4?5H2O
  • 点击次数:
  • 影响因子:7.312
  • DOI码:10.1016/j.seppur.2020.117826
  • 发表刊物:Separation and Purification Technology
  • 关键字:Tin, Copper, Pressure leaching, Recovery, Hydrometallurgy
  • 摘要:In the production of tin, much Sn-Cu bearing residue is yielded, and it is an important secondary resource for Sn and Cu recovery but has the disadvantages of a low metal recovery rate and low-concentration SO2 pollution. In this study, alkaline pressure oxidative leaching (APOL) was proposed to dispose of the Sn-Cu bearing residue. Tin was first dissolved as sodium stannate into the filtrate and used for SnO2 synthesis via a hydrothermal process, while copper sulfides were oxidized to copper oxide, and used for CuSO4⋅5H2O preparation via acid leaching-evaporative crystallization. Under the optimized leaching conditions of APOL, the leaching efficiencies of Sn, As, and S approached 93.42%, 98.82%, and 97.99%, while the leaching efficiency of copper was only 1.60%, which results in the efficient extraction of tin, desulfurization, dearsenification, and separation of tin and copper. The product SnO2 had a purity higher than 99.86%, a morphology of irregular shape, and a mean size of 2.68 μm. Meanwhile, the purity of prepared CuSO4⋅5H2O reached 99.98% with a morphology of irregular rods. Both valuable metals are economically and efficiently recycled by this environmentally friendly method.
  • 论文类型:期刊论文
  • 学科门类:工学
  • 文献类型:J
  • 卷号:257
  • 页面范围:117826
  • 是否译文:
  • 发表时间:2021-02-25
  • 收录刊物:SCI
  • 附件: Comprehensive recovery of Sn-Cu bearing residue and preparation of high purity SnO2 and CuSO4?5H2O-08.pdf