망간단괴 침출액으로부터 LIX 84에 의한 구리, 니켈의 용매추출

Solvent extraction of copper and nickel from manganese nodule leachate by LIX 84

A study on the separation Cu, Ni, and Co was carried out using LIX 84 leachate, chelate extractant. For this test, artificial test solution was prepared by varing concentrations of Cu, Ni, Co, (NH₄)₂CO₃ and (NH₄)₂SO₄. It was found that pH of the solution was very important factor for the separation of nickel from copper. The results showed that nickel was effectively extracted from copper by using LIX 84 at pH 1.0 to 1.2. The volume ratio of organic to aqueous phases was 1.0. According to the McCabe-Thiele diagram, the extraction rate of copper was 99 percents at the equal ratio of organic to aqueous phase in three stages.