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Removal of Copper and Zinc Ions by Neutralization from the Spent Sulfate Solutions of Brass Bulb Base  

Lee, Man-Seung (Department of Advanced Materials Science & Eng., Mokpo National University)
Ahn, Jae-Woo (Department of Advanced Materials Science & Eng., Daejin University)
Lee, Chang-Hae (Department of Environmental Engineering, Daejin University)
Publication Information
Resources Recycling / v.16, no.6, 2007 , pp. 39-45 More about this Journal
Abstract
Optimum condition for neutralization has been studied to remove the copper and zinc ions from spent sulfate solutions which resulted from the acid washing of the base of brass bulb. Chemical distribution of copper and zinc species and the variation of solubility of the two ions with solution pH were obtained by considering the complex formation reaction and mass balance. Removal percentage of zinc was more sensitive to solution pH than that of copper. This results from the fact that the solubility of zinc is higher than that of copper. The form of coagulant affected little the removal percentage of zinc, while addition of coagulant as the phase of solution resulted in higher removal percentage of copper than as the phase of solid.
Keywords
Brass base; Copper; Zinc; Neutralization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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