Journal of Civil and Environmental Engineering

Taihong Shi

Publications

• Research Article
  Separation and Recovery of Nickel and Copper from Multi-Metal Electroplating Sludge by Co-Extracting and Selective Stripping
  Author(s): Taihong Shi, Shujian Zou, Jinfeng Liu, Lina Zuo, Can Lv, Shiguo Jia and Rong Liang QiuTaihong Shi, Shujian Zou, Jinfeng Liu, Lina Zuo, Can Lv, Shiguo Jia and Rong Liang Qiu
  
  N902 diluted with kerosene was used to co-extract copper and nickel from the ammoniac-carbonate leaching liquor of multi-metal electroplating sludge. The influence factors of the ammoniac-carbonate leaching and the extracting process on the recovery of copper and nickel were studied. The leaching rate of copper and nickel can reach to 90 % and the other metal ions are less leached under the optimal leaching condition. In order to optimize the extraction condition, the L9 (34) intersecting experiment of co-extraction of copper and nickel ions was tested. For a typical ammonium carbonate leaching solution containing Cu2+ 2.23 g/L, Ni2+ 3.31 g/L, Cr <0.02 g/L and pH 9.0-9.5, the optimal conditions of co-extraction, NH3 escape and selective stripping of nickel and copper were established. The percentage of extraction was more than 97.0 % for both copper and nickel, and the stripping pe.. Read More»
  DOI: 10.4172/2165-784X.1000103

  Abstract PDF