Patent ID: 6765116
Filing Date: 2004-07-20
Classification: B01J,C07C

Abstract:
A process for the preparation of alkylene oxide adducts of active hydrogen containing organic compounds, which comprises contacting an alkylene oxide reactant comprising one or more vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more active hydrogen containing organic compounds, in the presence of a catalytically effective amount of the fluid catalyst prepared by the process comprising:a) providing a rare earth salt soluble in a C9-C30 active hydrogen containing organic compound at a temperature of less than 120Â° C.; b) adding and dissolving the rare earth salt in a C9-C30 active hydrogen containing organic compound thereby producing a rare earth/organic solution; and c) adding phosphoric acid to the rare earth/organic solution in a rare earth to phosphoric acid molar ratio in the range of 0.7:1 to 1.3:1 thereby producing the fluid rare earth phosphate catalyst wherein the rare earth phosphate present in the fluid rare earth phosphate catalyst is substantially uniformly dispersed in the active hydrogen containing organic compound and has an average particle size of less than about 2 microns.