| abstract |
The present invention is directed to detergent compositions, comprising aryl-alkane sulfonate produced by paraffin isometization followed by paraffin dehydrogenation, then by alkylation of an aryl compound by a lightly branched olefin, then by sulfonating, and finally optionally, neutralizing. The effluent of the alkylation zone comprises paraffins that are recycled to the isomerization step or to the dehydrogenation step. These modified alkylbenzene sulfonates produced have improved cleaning effectiveness in hard and/or cold water while also biodegradability comparable to that of linear alkylbenzene sulfonates. |