Abstract
Abstract In order to recover tin from the waste tin plating solution, we used the ion exchange method using three types of ion exchangeresins. The ion exchange resin with tertiary functional group(Lewatit TP 272) has not adsorption ratio of tin. The ion exchangeresin with iminodiacetic functional group(Lewatit TP 207) has high adsorption ratio of tin, but impurity content in the recoveredtin solution was relatively high. Whereas, in case of the ion exchange resin with functional group of ethylhexyl-phos-phate(Lewatit VP OC 1026), adsorption ratio of tin was less than that of Lewatit TP 207. However, it was possible to removeimpurities in the recovered tin solution by controlling the pH of the solution. High purity tin solution can be recovered by remov-ing the organic materials with water washing process. Key words : Ion exchange resin, tin, recovery, waste plating solution 1. 서론 주석은 LED TV, 합금재료, 도금재료, 전기 및 전자제품의 필수 소재로 사용되는 금속으로 차세대 핵심소재로 부각되면서 수요도 꾸준히 증가하고 있다. 그러나주석 자원의 경우 동남아 등 일부 국가에만 편중되어
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