SCI和EI收录∣中国化工学会会刊

›› 2011, Vol. 19 ›› Issue (6): 926-930.

• SEPARATION SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Recovery of Copper(II) and Nickel(II) from Plating Wastewater by Solvent Extraction

LI Liqing1,2, ZHONG Hong1, CAO Zhanfang1, YUAN Lu1   

  1. 1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
    2. School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 34100, China
  • Received:2010-11-19 Revised:2011-08-17 Online:2012-04-24 Published:2011-12-28
  • Supported by:
    Supported by the National Key Technologies Research and Development Program of China during the 11th Five-Year Plan Period (2007BAB22B01);the Young Science Foundation of Jiangxi Province Education Office (GJJ11124)

Recovery of Copper(II) and Nickel(II) from Plating Wastewater by Solvent Extraction

李立清1,2, 钟宏1, 曹占芳1, 袁露1   

  1. 1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
    2. School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 34100, China
  • 通讯作者: ZHONG Hong, E-mail: zhonghongcsu@163.com
  • 基金资助:
    Supported by the National Key Technologies Research and Development Program of China during the 11th Five-Year Plan Period (2007BAB22B01);the Young Science Foundation of Jiangxi Province Education Office (GJJ11124)

Abstract: The solvent extraction technology was applied to recover Cu2+ and Ni2+ from plating wastewater. Lix984N was chosen as the extractant due to its good extraction performance. The influence parameters were examined. The results show that the separation of Cu2+ and Ni2+ from sulphate medium can be realized by adjusting pH value with the help of Lix984N. For extracting Cu2+ and Ni2+, the optimal pH values are 4 and 10.5, and the maximal extraction percentages are 92.9% and 93.0%, respectively. With recovered Cu2+ and Ni2+ stripped in 170 g·L-1 and 200 g·L-1 H2SO4 medium, the stripping percentages of Cu2+ and Ni2+ are 92.9% and 93.0%, respectively. This method is simple and can be used to recover Cu2+ and Ni2+ from plating wastewater. And a flow sheet for separation of Cu2+ and Ni2+ is presented.

Key words: recovery, copper, nickel, solvent extraction, plating wastewater

摘要: The solvent extraction technology was applied to recover Cu2+ and Ni2+ from plating wastewater. Lix984N was chosen as the extractant due to its good extraction performance. The influence parameters were examined. The results show that the separation of Cu2+ and Ni2+ from sulphate medium can be realized by adjusting pH value with the help of Lix984N. For extracting Cu2+ and Ni2+, the optimal pH values are 4 and 10.5, and the maximal extraction percentages are 92.9% and 93.0%, respectively. With recovered Cu2+ and Ni2+ stripped in 170 g·L-1 and 200 g·L-1 H2SO4 medium, the stripping percentages of Cu2+ and Ni2+ are 92.9% and 93.0%, respectively. This method is simple and can be used to recover Cu2+ and Ni2+ from plating wastewater. And a flow sheet for separation of Cu2+ and Ni2+ is presented.

关键词: recovery, copper, nickel, solvent extraction, plating wastewater