The transalkylation of polyethylbenzene, mainly diethylbenzene and triethylbenzene, with benzene catalyzed by tungstophosphoric acid has been studied in stirred autoclave.

• 采用搅拌高压釜,以磷钨酸为催化剂,研究了苯与多乙苯的烷基转移反应,多乙苯主要是二乙苯和三乙苯。