Alkoxylation process catalyzed by supported rare earth elements
AssigneeShell Oil Company
InventorsRichard A. Kemp, Paul R. Weider
Life of this patent
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Abstract
Alkylene oxide adducts of organic compounds having active hydrogen atoms are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more compounds having active hydrogen atoms in the presence of a catalyst which comprises one or more compounds comprising a rare earth element and phosphorus supported on an inert porous support. The product alkoxylates are known to be useful, for instance, as nonionic surfactants, wetting and emulsifying agents, solvents, and chemical intermediates.
Claims25
A process for the preparation of alkylene oxide adducts of active hydrogen containing organic compounds, which comprises contacting and reacting 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 catalyst which comprises one or more compounds comprising a rare earth element and phosphorus supported on an inert porous support.
A process for the preparation of alkylene oxide adducts of active hydrogen containing organic compounds, which comprises contacting and reacting an alkylene oxide selected from the group consisting of ethylene oxide and propylene oxide, with an active hydrogen containing reactant selected from the group consisting of alkanols, phenols and polyols, in the presence of a catalyst comprising one or more compounds comprising lanthanum and phosphorus supported on an inert porous support selected from the group consisting of alumina, silica, silica-alumina, titania, zirconia, magnesia and mixtures thereof.
Dependencies are inferred from the claim text.