Separation of Co (II) and Ni (II) from the mixed sulphate/chloride solution using NaPC-88A

► Separation of Co and Ni was carried out using PC 88A in kerosene. ► Cobalt was extracted with 0.09 M PC 88A and stripped with 5 g/L H2SO4. ► Nickel was extracted with saponified 0.7 M PC-88A and stripped with 144 g/L H2SO4. ► The extracted species were CoA2.3HA and NiA2.3HA.