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http://dx.doi.org/10.7844/kirr.2012.21.5.50

A study on the removal of As, Sb, Bi from the copper sulfate solutions by Ion exchange resin containing Aminophosphosphonic acid as a functional group  

Ahn, Jae-Woo (Dept. of Advanced Materials Sci. & Eng., Daejin University)
Seo, Jae-Seong (Sam kyung Metal)
Publication Information
Resources Recycling / v.21, no.5, 2012 , pp. 50-57 More about this Journal
Abstract
A comparative study has been carried out on the removal of impurities such As, Sb, Bi from the copper sulfate solution by ion exchange resin containing aminophosphosphonic acid as functional group. The various parameters which affect the removal of impurities; such as the reaction temperature, the reaction time, the amount of ion-exchange resins, the concentration of sulfuric acid in electrolyte, were studied. The basic experimental results showed that about 88% of Sb & 94% of Bi can be adsorbed in these chelate resins and removed from the copper sulfate solutions but As was removed below 10% from the solutions. And the selective elution of Bi and Sb from the adsorbed ion exchange resin also can be achieved by $H_2SO_4$ or HCl solutions. The results also showed that 98.1% of Sb and 96.6% of Bi can be adsorbed from the copper sulfate solutions after 2 Bed-volume of continuous ion exchange column test.
Keywords
Copper sulfate; Ion exchange; Antimony; Bismuth; Purification;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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