Process for the partial hydrogenation of fatty acid esters
AssigneeCognis IP Management GmbH
InventorsGeorgios Papadogianakis, Achilleas Bouriazos, Konstandinos Mouratidis, Nikolas Psaroudakis
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Abstract
Disclosed is a process for the manufacture of unsaturated fatty acid alkyl esters or glycerides having a total content of C18:1 of about 30 to about 80 Mol-%, by partial hydrogenation of unsaturated fatty acid esters having a total content of (C18:2+C18:3) of at least 65 Mol-%, calculated on the total amount of C18 moieties in the ester, wherein the hydrogenation is conducted in an aqueous/organic two-phase system in the presence of a water-soluble catalyst consisting of a Group VIII, Group IX, or Group X metal and a hydrophilic ligand.
Claims22
A process for the manufacture of C18:1-containing unsaturated fatty acid alkyl esters or glycerides, the process comprising:
- partially hydrogenating polyunsaturated fatty acid esters or glycerides comprising at least 65 mole-% of C18:2 and C18:3, based on the total C18 content, in a two-phase aqueous/organic system, in the presence of a water-soluble catalyst consisting of a metal selected from the group consisting of rhodium, ruthenium, palladium, and mixtures thereof, and trisulfonated triphenylphosphine (TPPTS) as a hydrophilic ligand, wherein the resulting partial hydrogenation product comprises about 30 to about 80 mole-% of C18:1-containing unsaturated fatty acid alkyl esters or glycerides,
- and wherein the fraction containing the C18:1 unsaturated fatty acid alkyl ester or glyceride is composed of 50 mol % or more cis-C18:1 components.
A method of homogeneous hydrogenation comprising hydrogenating polyunsaturated fatty acid alkyl esters or glycerides in the presence of a catalyst consisting of a metal selected from the group consisting of rhodium, ruthenium, palladium, and mixtures thereof, and trisulfonated triphenylphosphine as a hydrophilic ligand to produce a C18:1-containing unsaturated fatty acid alkyl ester or glyceride, wherein the fraction containing the C18:1 unsaturated fatty acid alkyl ester or glyceride is composed of 50 mol % or more cis-C18:1 components.
A process for the manufacture of C18:1-containing unsaturated fatty acid alkyl esters or glycerides, the process comprising:
- partially hydrogenating polyunsaturated fatty acid esters or glycerides comprising at least 65 mole-% of C18:2 and C18:3, based on the total C18 content, in a two-phase aqueous/organic system, in the presence of a water-soluble catalyst consisting of a metal selected from the group consisting of rhodium, ruthenium, palladium, and mixtures thereof, and trisulfonated triphenylphosphine (TPPTS) as a hydrophilic ligand, wherein the resulting partial hydrogenation product comprises about 30 to about 80 mole-% of C18:1-containing unsaturated fatty acid alkyl esters or glycerides,
- and wherein the total content of C18:1 unsaturated fatty acid alkyl ester or glyceride is composed of 50 mol % or more cis-C18:1 components versus trans-C18:1 components.
Dependencies are inferred from the claim text.