旋流电积回收铜镍.pdfVIP

第 20 卷第 12 期 中国有色金属学报 2010 年 12 月 Vol.20 No.12 The Chinese Journal of Nonferrous Metals Dec. 2010 文章编号：1004-0609(2010)12-2425-06 采用旋流电积技术从电镀污泥中回收铜和镍 郭学益，石文堂，李 栋，田庆华 ( 中南大学 冶金科学与工程学院，长沙 410083) 摘 要：以电镀废水处理过程中产出的电镀污泥为研究对象，采用旋流电积技术从电镀污泥中选择性回收铜和镍， 并研究旋流电积过程中 Cu2+和 Ni2+ 以及杂质离子的电积行为。结果表明：旋流电积技术可以从高杂质含量的低铜 浸出液中直接生产电积铜，产品质量达到 GB/T467—1997 中Cu−CATH−2 牌号标准阴极铜的要求，铜直收率达到 99% 以上；铜电积后液经除铬后，仍采用该技术从低镍溶液中直接生产电积镍，化学成分达到 GB/T6516—1997 中 Ni9990 牌号电积镍的要求，镍直收率达到 93% 以上。与传统电积技术相比，旋流电积技术具有选择性强、电 流效率高和产品质量好等优点。 关键词：旋流电积；电镀污泥；铜；镍 中图分类号：X781.1 ；TF803.27 文献标志码：A Recovery of copper and nickel from electroplating sludge by cyclone electrowinning GUO Xue-yi, SHI Wen-tang, LI Dong, TIAN Qing-hua (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The copper and nickel from electroplating sludge were selectively recovered by cyclone electrowinning technology, and the electrowinning behaviors of Cu2+, Ni2+ and other metal ions in the process were investigated. The results indicate that the electrolytic copper is electrodeposited from a leaching solution with high impurities and low copper content by cyclone electrowinning and meets the requirements of the standard GB/T467—1997, and more than 99% copper is recovered. After the removal of chromium, the liquor with low nickel content is applied to nickel cyclone electrowinning, and the product meets the requirements of the standard GB/T6516—1997 (Ni9990), and more than 93% nickel is recovered. Compared to the traditional elec