Hydrogenation
AssigneeLever Brothers Company
InventorsAlbert Froling, Rudolph O. de Jongh, Josephus M. A. Kemps
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Abstract
Process for the selective hydrogenation of polyunsaturated compounds with a metallic catalyst. The selectivity is increased and trans-isomerization is decreased by carrying out the hydrogenation in the presence of a catalyst to which, before the hydrogenation is started, an external potential, differing from the naturally occuring equilibrium potential, is applied while in contact with an electrolyte, such as a quaternary ammonium salt, dissolved in a liquid, such as an alcohol or a ketone.
Claims23
Process for the selective hydrogenation of a poly-unsaturated organic compound containing more than one double bond in a carbon chain or ring comprising hydrogenating said compound with molecular hydrogen in the presence of a metallic hydrogenation catalyst and applying an external electric potential differing from the equilibrium potential and having a value of between 0 V and -3 V as measured against a saturated calomel electrode to the catalyst while it is in contact with a liquid, which liquid contains an electrolyte.
Dependencies are inferred from the claim text.