Production method of alkylbenzene

• Main Authors: YOU XIANGTING, WANG XUEJUE, WANG YANZHEN, DUAN HONGLING, SONG CHUNMIN, ZHANG QINGYI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to a production method of alkylbenzene, which is characterized in that trifluoromethanesulfonic acid and methanesulfonic acid are used as catalysts, benzene and olefin are used as raw materials, the benzene, the olefin and the catalysts are stirred and mixed, the temperature is controlled at 30-100 DEG C, and the reaction is performed for 10-100 minutes; settling and layering a reaction product, and separating out an upper oil phase and a lower catalyst phase; adding an extracting agent into the oil phase, stirring for 1-20 minutes, and then settling and layering to obtain an extracting agent phase and an oil phase; adding a catalyst phase into the solution in the extraction agent phase, and separating out the extraction agent phase and a second oil phase; heating and evaporating the extraction agent phase to recover the extraction agent to obtain a recovered catalyst; and mixing the oil phase and the second oil phase, and heating to separate the residual extracting agent, unreacted benz