Abstract
Sulphonation process residues in the petroleum industry are not exploited in line with their scientific or economic potential. The traditional routes for disposal of these residues can contribute to pollution, whereas various chemical techniques can be used to produce valuable products with domestic and industrial applications. The present work deals with the utilisation of sulphonation process residues. It is found that economic utilisation of sulphonation process residues from the petroleum industry involves the following: 1 A comparative evaluation of the performance of the products obtained with other available products demonstrated their efficiency and value. 2 Production of highly paraffinic oils with low aromatic content, with potential for use as spray oils, and the utilisation of their residues in the preparation of oil-soluble neutral and overbased calcium sulphonates, to be used as detergentdispersant additives for crankcase lubricating oils. 3 Regeneration of used lubricating oils and use of their residues in the preparation of water-soluble sodium sulphonates for use as surfactants. 4 Reducing the aromatic and sulphur content of kerosene for eventual employment as a carrier solvent for household in secticide.
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