Cadmium from high tenor cobalt electrolyte solution was selectively removed using modified di-(2-ethylhexyl) phosphoric acid (D2EHPA). In this study, D2EHPA was converted to Co-D2EHPA after replacing its functional group with Co(2+) ions. The process parameters, such as pH, organic concentration, O/ A ratio, kinetics, etc., were investigated. A significant amount of cadmium was extracted using Co-D2EHPA at equilibrium pH similar to 3.5 and the McCabe-Thiele diagram showed that 100% cadmium can be extracted through three stages using O/A ratio of 1. Stripping tests revealed that 100% cadmium can be stripped from the loaded organic using 0.4M H(2)SO(4) in a single contact.