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金属矿山 ›› 2009, Vol. 39 ›› Issue (10): 158-160.

• 综合利用 • 上一篇    下一篇

废印刷线路板微生物浸出液中铜的选择性萃取

张承龙,王景伟,白建峰,关杰   

  1. 上海第二工业大学
  • 出版日期:2009-10-15 发布日期:2011-04-26
  • 基金资助:

    国家高技术研究发展计划(863)项目(编号:2006AA062366),上海市教委科研创新项目(编号:09YZ451)。

Selective Extraction of Copper from Microbial Leaching Solution of Waste Printed Circuit Boards

Zhang Chenglong,Wang Jingwei,Bai Jianfeng,Guan Jie   

  1. Shanghai Second Polytechnic University
  • Online:2009-10-15 Published:2011-04-26

摘要: 对萃取法分离废印刷线路板微生物浸出液中的铜进行了研究。结果表明:选用N902为萃取剂,可很好地选择性萃取浸出液中的铜,在萃取剂浓度为10%,萃取相比为1∶1,萃取搅拌时间为5 min的条件下,铜的萃取率可达99.51%,Cu与Fe的分离系数为2 058;以硫酸溶液为反萃剂对萃取获得的负载有机相进行反萃取,在硫酸溶液浓度为1.8 mol/L,反萃取相比为1∶1,反萃取搅拌时间为5 min的条件下,铜的反萃率可达93.57%。  

关键词: 废印刷线路板, 微生物浸出液, 铜, 萃取

Abstract: The separation of copper from microbial leaching solution of waste printed circuit boards by extraction was studied.The results showed that: Using N902 as the extraction agent,a copper extraction from leaching solution can be selectively realized.Under the conditions of the 10% extraction agent,extract phase of 1∶1 and extract time of 5 min,the copper extraction rate can be up to 99.51% with Cu and Fe separation factor of 2 058; With sulfuric acid solution as the stripping agent,back-extraction on the loading organic phase is carried out.Under the conditions of the sulfuric acid concentration of 1.8 mol / L,back extraction phase rate of 1∶1,at back-extraction time of 5 min,the back-extraction rate of copper can be up to 93.57%.  

Key words: Waste printed circuit boards, Microbial leaching liquid, Copper, Extraction