Patent ID: 6043402
Filing Date: 2000-03-28
Classification: C07C

Abstract:
A prooess for producing an monoalkyl aromatic comprising:a) passing a feed aromatic, an olefin, and a polyalkyl aromatic comprising at least one phenyl group and at least two alkyl groups corresponding to said olefin to a reaction zone;b) alkylating said feed aromatic with said olefin and transalkylating said feed aromatic with said polyalkyl aromatic in said reaction zone in the presence of zeolite beta to form a monoalkyl aromatice;c) Inhibiting the formation of diarylalkane corrsponding to said olefin by operating said reaction zone at reaction conditions comprising a temperature of from about 100.degree. C. to about 475.degree. C. a pressure sufficient to maintain said feed aromatice in at least a partial liquid phase, a molar ratio of phenyl groups per alkyl group corresponding to said olefin olefin of from bout 0.75:1 to about 25:1, and a concentration of said olefin, based on the weight of said feed aromatic said olefin, and said polalkyl aromatic passed to said reaction zone in Step (a), of less than ##EQU3## wherein MW.sub.O is the molecular weight of said olefin and MW.sub.A is the molecular weight of said feed aromatic andd) withdrawing from said reaction zone a product comprising said monoalkyl aromatic.