Solvent extraction of cobalt from artificial nickel sulphate solution using PC-88A organic solution as extractant

In this research, an experiment was carried out to separate cobalt from artificial nickel sulfate solution containing cobalt ions by solvent extraction method using organic solvent 2-ethythexyl phosponic acid mono-2-ethylhexyl ester (PC-88A). The experiment was carried out on a laboratory scale. The experimental variables observed included the acidity of the solution (pH), shaking time, shaking speed, and ratio of aqueous and organic (A/O) volume and concentration of PC-88A extractant. The experimental results showed that at pH 6 as much as 95.68% of cobalt could be extracted with the PC-88A.