Bacon & Thomas, PLLC
Integrated process using in situ regenerated sulfuric acid as catalyst
 This invention discloses an integrated process of alkylation of olefins and regeneration of spent sulfuric acid. The alkylation of olefins may be replaced by nitration of toluene or by chlor-alkali process. The sulfuric acid is used as a catalyst or a absorbent, and the spent sulfuric acid is regenerated in situ and is recycled in the alkylation of olefins, nitration of toluene or chlor-alkali processes. 
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Chao-Shan Yi-Lin Tse-Chuan
Chou Chen Chou