Patent ID: 8158819

Claim:
Process to obtain a highly soluble linear alkylbenzene sulfonate, wherein at least 18% by weight of isomers of said highly soluble linear alkylbenzene sulfonate are the 2-phenyl derivatives, comprising the steps of: i) obtaining an olefin/paraffin mixture through catalytic dehydrogenation of paraffins; ii) purifying olefins from the mixture formed in step i); iii) separating non linear compounds from the mixture obtained in step ii) by means of a selective adsorbent; iv) treatment of the non linear compounds extracted in the step iii) to form the hydrotropic precursor; v) alkylating benzene with the purified olefin/paraffin mixture obtained in step iii); vi) purifying the crude linear alkylbenzenes obtained in step v); vii) sulfonating the linear alkylbenzenes obtained in the step vi); viii) neutralizing the linear alkylbenzene sulfonic acids obtained in step vi); wherein said treatment of step iv) comprises at least one of the processes selected from the group consisting of fractionation, hydrogenation and/or selective adsorption, said hydrotropic precursor obtained in the step iv) being added to the purified linear alkylbenzene stream, either before the sulfonation and neutralization steps, the purified linear alkylbenzene stream and the hydrotropic precursor thus being sulfonated together, or the hydrotropic precursor being sulfonated and neutralized and subsequently added to the purified linear alkylbenzene sulfonate obtained after step viii).