In the present study the recovery of sodium petroleum sulphonate (SPS) as a by-product in the manufacture of mineral oil using vacuum gas oil (VG-100) as feed stock is carried out using Liquid-liquid extraction technique in a single stage equilibrium set-up. The influence of solvent to feed ratio (SIF) and extraction temperature on the % yield of sodium petroleum sulphonate and % active content of sulphonate for three different solvents iso-propyl, iso-butyl and secondary butyl alcohol (IPA, IBA and SEA) are studied. It was found that the yield of sodium petroleum sulphonate was maximum at a SIF ratio of about 0.7 and IPA gave better yield compared to the other two solvents. The % active content of the product obtained using TPA and SEA meets the commercial quality requirement. It was also found that thermal stability of the product obtained was comparable with that of commercial grade.