Process for the preparation of olefin oxides
AssigneeEnichem S.p.A.
InventorsGiuseppe Paparatto, Anna Forlin, Paolo Tegon
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Abstract
A process in continuous is described for the preparation of oxides of olefins by the direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a catalytic system consisting of a zeolite containing titanium and a nitrogenated organic base having formula (I). The process allows the production of high conversions and selectivities of the olefin into the corresponding oxide with a stable catalytic activity over a period of time.
Claims24
A process in continuous for the preparation of olefin oxides by the direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a catalytic system consisting of a zeolite containing titanium atoms and a nitrogenated base having general formula (I)
- wherein:
- R, R1 and R2, the same or different, can be H, an alkyl group with C1-C10 carbon atoms, a —COR3 group wherein R3 is an alkyl group with C1-C10 carbon atoms, or a
- group, wherein n is a number ranging from 1 to 10 and R4 and R5 are H or an alkyl group with C1-C10 carbon atoms, on the condition that R, R1 and R2 are not contemporaneously H.
Dependencies are inferred from the claim text.