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Patent US9650327
Issued 2017-05-16
Process For The Selective Hydrogenation Of Vegetable Oils
This invention relates to a process for the selective hydrogenation of vegetable oils. In particular the invention relates to a process for the hydrogenation of vegetable oils which is capable of selectively converting polyunsaturated fatty acids into mono-unsaturated fatty acids and products obtained therefrom. The vegetable oils obtained from the process according to the invention have in particular a high mono-unsaturated fatty acids content and are particularly suitable for use as raw materials for the synthesis of chemical intermediates.
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- 1. Process for the catalytic hydrogenation of a vegetable oil wherein the oil is placed in contact with molecular hydrogen in the presence of a catalyst comprising supported metallic Palladium, wherein said process is performed in the presence of an amount of water in an amount between 5:1 and 100:1 with respect to the weight of metallic Palladium, and at a temperature from 0° C. to 130° C.
- 12. A process for the conversion of a polyunsaturated fatty acid into a monounsaturated fatty acid of a vegetable oil, which comprises hydrogenating the vegetable oil with at least a catalyst comprising metallic Palladium, said hydrogenating being performed in presence of an amount of water between 5:1 and 100:1 with respect to the weight of the metallic Palladium.
- 15. A vegetable oil which comprises:
a di-unsaturated acid content of less than 10% by weight with respect to the total fatty acids content; a mono-unsaturated acid content of more than 70% by weight with respect to the total fatty acids content; a trans monounsaturated isomer content higher than 1.5% and lower than 12% by weight with respect to the total fatty acids content.
