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AssigneeAkzo Nobel N.V.
InventorsZongchao Zhang, Shuguang Zhang
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The present invention generally relates to a process for the skeletal isomerization of unsaturated linear fatty acids and/or alkyl esters thereof to their branched counterparts. Said skeletal isomerization process comprises contacting said unsaturated linear fatty acids and/or alkyl esters thereof with at least one metal ion exchanged solid material catalyst. The present invention also relates to a process for the preparation of branched fatty acids and/or alkyl esters thereof from their straight chain counterparts. Finally, the invention also relates to various derivatives prepared from the branched fatty acids and/or alkyl esters prepared in accordance with the present invention.
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 at least one metal ion exchanged acidic catalyst which comprises at least one non-zero valent metal ion.
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 at least one metal ion exchanged acidic catalyst which comprises at least one higher valent metal.
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 the di-branching:mono-branching ratio of branched fatty acid or alkyl ester thereof is greater than 0.75.
Dependencies are inferred from the claim text.