Modified zeolite catalyst, useful for alkylation of aromatic hydrocarbons, especially production of cumene, includes trivalent cations in the lattice

摘要

Catalyst (A) that is a modified form of zeolite ITQ-7 having trivalent cations at positions in the zeolite lattice. (A) has composition zMx/nH(1.0-x) XO2: SiO2: yYO2. M = at least one cation with charge +n, i.e. sodium, potassium, cesium, calcium, magnesium, nickel, copper (II) and cobalt (II); X = at least one trivalent element; Y = at least one tetravelent element; x = 0-0.5; y = 0-1; z = less than 0.1. Optionally (A) also includes w moles (unspecified) of water. An Independent claim is also included for a method for preparing (A).