Process for the selective hydrogenation of triglyceride oils with a metallic catalyst in the presence of ammonia
First Claim
1. Process for the selective hydrogenation of fatty acid derivatives, which contain besides fatty acids with two double bonds fatty acids with more than two double bonds, by contacting the fatty acid derivative with hydrogen at a temperature of -20°
- to 100°
C. in the presence of a hydrogenation catalyst chosen from the group consisting of palladium, platinum, rhodium and iridium, which catalyst is treated with dry ammonia in a molar ratio of ammonia to the metal component of the catalyst of 100;
1 to 5000;
1.
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Abstract
Triglyceride oils, which contain besides fatty acids having two double bonds, fatty acids having more than two double bonds, are hydrogenated using palladium, platinum, rhodium and/or iridium as a catalyst, the catalyst being treated with dry ammonia. The hydrogenation is carried out at a temperature of at least 100° C. The hydrogenation progresses in a particularly selective manner. On using, for instance, soyabean oil, which contains about 55% of linoleic acid and 7% of linolenic acid, the amount of linolenic acid can be reduced to 2%, whereby more than 45% of linoleic acid is retained in the hydrogenated product. In case the catalyst is not treated, said amount is only about 35%.
19 Citations
10 Claims
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1. Process for the selective hydrogenation of fatty acid derivatives, which contain besides fatty acids with two double bonds fatty acids with more than two double bonds, by contacting the fatty acid derivative with hydrogen at a temperature of -20°
- to 100°
C. in the presence of a hydrogenation catalyst chosen from the group consisting of palladium, platinum, rhodium and iridium, which catalyst is treated with dry ammonia in a molar ratio of ammonia to the metal component of the catalyst of 100;
1 to 5000;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- to 100°
Specification
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- Resources
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Current AssigneeLever Brothers Company (Unilever PLC)
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Original AssigneeLever Brothers Company (Unilever PLC)
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InventorsKuiper, Jan
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Primary Examiner(s)Niebling, John F.
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Application NumberUS06/159,757Time in Patent Office393 DaysField of Search260/409, 252/438US Class Current554/145CPC Class CodesB01J 23/40 of the platinum group metalsC11C 3/126 using catalysts based princ...
