An improved process for the production of cumene.

摘要

An improved process is disclosed for the preparation of cumene. Cumene is prepared by reacting benzene with a propylating agent in the presence of a catalyst containing metal loaded Zeolite Beta in a reactor in the range of a temperature of 150 to 250<o>C and a pressure of 1 to 35 atmospheres, the propyl and diisopropyl-benzene so formed are separated from the reactor effluent by conventional methods. The diisopropylbenzene is recycled back to the reactor. Simultaneous alkylation and transalkylation reactions occur in a single catalyst bed containing Zeolite Beta with a feed containing benzene, propylene and diisopropylbenzene. Cumenes are important chemical precursors in the production of detergents and polymers among others.