Fatty acid isomerization with mesoporous zeolites
AssigneeAkzo Nobel N.V.
InventorsZhang Shuguang, Zhang Zongchao
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Abstract
The present invention generally relates to a process for the preparation of branched fatty acids from straight chain unsaturated fatty acid feedstocks with a strongly acidic and hydrothermally stable mesoporous aluminosilicate and/or aluminophosphate catalyst materials having mesopores of 15-500 Å and contain primary and secondary nanosized zeolite structural units in the walls that separate mesopores.
Claims33
A process for the isomerization of a feedstock which comprises unsaturated linear fatty acids, alkyl esters of unsaturated fatty acids or mixtures thereof, wherein said process comprises subjecting said feedstock to an isomerization reaction in the presence of an acidic catalyst, wherein said acidic catalyst comprises a mesoporous crystalline phase having pore walls containing primary and secondary crystalline building unit structures.
A process for the isomerization of a feedstock which comprises unsaturated linear fatty acids, alkyl esters of unsaturated fatty acids or mixtures thereof, wherein said process comprises subjecting said feedstock to an isomerization reaction in the presence of an acidic catalyst, wherein said acidic catalyst comprises a aluminophosphate or a metal containing aluminophosphate.
A branched fatty acid or alkyl ester thereof prepared by isomerizing a feedstock which comprises unsaturated linear fatty acids, alkyl esters of unsaturated fatty acids or mixtures thereof, wherein said process comprises subjecting said feedstock to an isomerization reaction in the presence of an acidic catalyst, wherein said acidic catalyst comprises a mesoporous crystalline phase having pore walls containing primary and secondary crystalline building unit structures.
Dependencies are inferred from the claim text.