Process for manufacturing a catalyst comprising aluminum oxide and boron oxide, the resulting catalyst and the use thereof in alkylation reactions

Claim 1

In the alkylation of an aromatic hydrocarbon with an olefin at about 100-300° C. and under sufficient pressure to maintain the aromatic hydrocarbon in the liquid phase and wherein the proportion of the olefin to the aromatic hydrocarbon is about 0.1 : 1 to 1 : 1, in contact with a catalyst, the improvement wherein said catalyst is that catalyst produced by reacting an aluminum compound of the formula AlX y R(3-y) where X is halogen, R is a hydrocarbon radical and y is 1, 3/2, or 2, with a carrier consisting essentially of a mixture of aluminum oxide and boron oxide in proportions by weight of 1 : 0.01 to 1 : 1, respectively, and wherein the compound of formula AlX y R.sub.(3-y) is used in a sufficient amount to introduce 0.5 - 20% by weight of halogen into the catalyst.