Epoxidation catalyst
AssigneeLyondell Chemical Technology, L.P.
InventorsKun Qin, Roger Grey, Peter Whitman
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Abstract
Titanium or vanadium zeolites are pretreated by contacting with an amino polyacid compound, such as ethylenediaminetetraacetic acid or a salt thereof, prior to use in olefin epoxidation with hydrogen peroxide.
Claims20
An epoxidation process which comprises reacting an olefin with hydrogen peroxide in the presence of a titanium or vanadium zeolite, wherein the zeolite is pre-treated by contacting with an amino polyacid compound.
An epoxidation process which comprises reacting an olefin, hydrogen and oxygen in the presence of a noble metal-containing titanium or vanadium zeolite catalyst comprising a noble metal and a titanium or vanadium zeolite, wherein the zeolite is pre-treated by contacting with an amino polyacid compound.
A process comprising contacting a titanium or vanadium zeolite with an amino polyacid compound selected from the group consisting of amino polycarboxylic acids, amino polyphosphonic acids, amino polysulfonic acids, and mixtures thereof.
Dependencies are inferred from the claim text.