Abstract: Recovery of Copper From Etching Effluent Using Electrodialysis (2011 Annual Meeting)

Wednesday, October 19, 2011

Exhibit Hall B (Minneapolis Convention Center)

Hiroki Nagasawa¹, Atsushi Iizuka², Akihiro Yamasaki³ and Yukio Yanagisawa¹, (1)Department of Environment Systems, The University of Tokyo, Kashiwa, Chiba, Japan, (2)Research Center for Sustainable Materials & Engineering, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi, Japan, (3)Department of Materials and Life Science, Seikei University, Musashino, Tokyo, Japan

The copper recovery from the etching effluent using electrodialysis was experimentally studied. Cupric ions was separated and concentrated from the strong hydrochloric acid-based copper containing etching effluent with electrodialysis. After the concentration, copper have been recovered in the form of copper oxides via electro-basification. The effects of the operating parameters such as a cupric ion concentration, a chloride ion concentration, and a current density have been examined.

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