Patent ID: 6858555

Claim:
A process for preparing a catalyst comprising: (a) mixing: (i) a zeolite; (ii) a mixed metal oxide selected from the group consisting of silica-alumina, silica-zirconia, silica-magnesia, silica-titania , silica-boria, alumina-calcia, alumina-boria and alumina-magnesia, wherein the silica content of said mixed metal oxide is from about 5 to about 30 wt. %; (iii) a clay; (iv) and a metal oxide selected from the group consisting of silica, alumina, titania, boria, magnesia, calcia, and zirconia; and, (b) controlling the amounts of said mixed metal oxide, said clay and said metal oxide so that the total acidity of the catalyst components other than said zeolite is from 0.02 to 0.08 mmol/g.