首页> 外文会议>Annual Conference of Metallurgists >RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARDS USING AMMONIACAL ALKALINE SOLUTION
【24h】

RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARDS USING AMMONIACAL ALKALINE SOLUTION

机译:使用氨碱溶液从印刷电路板恢复铜

获取原文

摘要

A novel hydrometallurgical process for copper recovery from waste printed circuit boards has been proposed, which consists of selective leaching of copper metal as Cu(I) by Cu(II) in ammoniacal alkaline solution, purification, and electrowinning. The distinct feature of this process is much lower power consumption during the electrowinning than that during the conventional one from acidic copper sulfate media, because the deposition of copper metal from Cu(I) at the cathode and the oxidation of Cu(I) to Cu(II) at the anode take place in the present method. In the laboratory-scale tests using waste printed circuit boards, high purity copper which contains 1.1 ppm of impurities was obtained in a chloride system.
机译:提出了一种用于废物印刷电路板的铜回收的新型氢冶金工艺,由Cu(II)在氨碱溶液中的Cu(II)中选择铜金属作为Cu(I)的选择性浸出,纯化和电环宁组成。在电循环期间,该过程的不同特征比恒定的硫酸铜介质中的常规中的电力消耗低得多,因为从Cu(I)在阴极中沉积铜金属和Cu(I)的氧化至Cu (ii)在阳极处发生本方法。在使用废纸电路板的实验室规模试验中,在氯化物体系中获得了含有1.1ppm杂质的高纯度铜。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号