Patent ID: 7262333
Filing Date: 2007-08-28
Classification: B01J,C07C

Abstract:
1. Process for the production of at least one compound that is selected from among the 2-, 3-, 4-, 5-, and 6-phenylalkanes by alkylation of an aromatic compound by means of at least one olefin that comprises at least 9 carbon atoms per molecule, characterized in that the process is conducted in the presence of a catalyst that comprises at least one non-zeolitic substrate with a silicated alumina base that contains an amount of more than 6% by weight and less than or equal to 50% by weight of silica (SiO2) and that exhibits the following characteristics: a mean pore diameter, measured by mercury porosimetry, encompassed between 20 and 140 Å, a total pore volume, measured by mercury porosimetry, encompassed between 0.1 ml/g and 0.6 ml/g, a total pore volume, measured by nitrogen porosimetry, encompassed between 0.1 ml/g and 0.6 ml/g, a BET specific surface area encompassed between 100 and 500 m a packing density of more than 0.85, a pore volume, measured by mercury porosimetry, encompassed in the pores with a diameter of more than 140 Å, of less than 0.1 ml/g, a pore volume, measured by mercury porosimetry, encompassed in the pores with a diameter of more than 160 Å, of less than 0.1 ml/g, a pore volume, measured by mercury porosimetry, encompassed in the pores with a diameter of more than 200 Å, of less than 0.1 ml/g, a pore volume, measured by mercury porosimetry, encompassed in the pores with a diameter of more than 500 Å, of less than 0.1 ml/g, an X diffraction diagram that contains at least the main lines that are characteristic of at least one of the transition aluminas contained in the group that consists of the alpha, rho, chi, eta, gamma, kappa, theta and delta aluminas, whereby said process is carried out at a temperature of between 30 and 400° C., a pressure of between 0.1 and 10 MPa, an hourly volumetric flow rate of 0.50 to 200 h−1, and an aromatic compound/olefin molar ratio of between 1:1 and 50:1.