Patent ID: 7439411

Claim:
A process for preparing an alkylated aromatic compound, which process comprises an alkylation reaction of an aromatic compound with an alkylating agent which is selected from an olefin, an alcohol and a polyalkylated aromatic compound, in the presence of a catalyst which is a porous crystalline material with a chemical composition expressed in its calcined form as: X 2 O 3 :nYO 2 :mZO 2 in which (n+m) is at least 5, X is a trivalent element, Z is Ge, Y is at least one tetravalent element other than Ge, and the n/m ratio is at least 1, said material having, in its calcined form, an X-ray diffraction pattern whose most characteristic diffraction peaks are: TABLE 1 Relative d(±0.3 Å) Intensity 13.64 vs 7.87 vs 4.82 w 4.55 m 4.11 m 3.41 m in which d represents the interplanar spacing in Ångstrom and the relative intensity of the lines is calculated as a percentage of the most intense peak, with vs being a very strong relative intensity of 80-100, m being a medium relative intensity of 40-60, and w being a weak intensity of 20-40.