Method for the preparation of alkyl aryl sulfonic acids and alkyl aryl sulfonates

摘要

A process for preparing an alkyl aryl sulfonic acid, in contact with the gaseous sulfonating agent: (a) alkyl aromatic hydrocarbons first liquid reaction product comprising (i) an alkyl aryl sulfonic acid and (ii the second liquid reaction product purification and gas flow and (c) purifying gaseous effluent stream; process of separating from the gaseous effluent stream (b) a first liquid reaction product; generating a) gaseous discharge flow process to obtain a; then was recycled to the first liquid reaction product produced after the separation step (b) (d) a second liquid reaction product to produce a third liquid reaction product containing alkyl aryl sulfonate is obtained by the method comprising the alkyl aromatic hydrocarbon is contacted with an olefin and an aromatic hydrocarbon alkylation conditions, and is obtained by dehydrogenation of the Fischer-Tropsch derived paraffinic feedstock is the olefin method.