Patent ID: 6383966
Filing Date: 2002-05-07
Classification: B01J,C07D

Abstract:
A method for preparing a catalyst comprising the steps of:(a) impregnating an inorganic siliceous solid with a titanium source selected from the group consisting of: (1) a solution of a titanium halide in a non-oxygenated hydrocarbon solvent; and (2) a vapor stream of titanium tetrachloride; said inorganic siliceous solid having a surface area greater than 1100 m2/g; (b) calcining the impregnated siliceous solid to form a calcined catalyst precursor; and one or more steps selected from the group consisting of: (c) heating the calcined catalyst precursor in the presence of water; and (d) treating the calcined catalyst precursor with a silylating agent; wherein water is substantially excluded until at least after step (a) is completed.