Removal of metal soaps from hydrogenated fatty products

C - Chemistry – Metallurgy – 07 – C

Patent

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260/534.5, 260/6

C07C 51/487 (2006.01) C07C 29/90 (2006.01) C07C 53/126 (2006.01) C07C 57/12 (2006.01) C11B 3/00 (2006.01) C11C 3/02 (2006.01) C11C 3/12 (2006.01)

Patent

CA 2029496

The invention provides a process for removing fatty acid metal soaps derived from metals with an atomic number from 27 to 29 from hydrogenated fatty products comprising separating solid metal precipitated under the influence of hydrogen at a pressure ranging between 0.05 and 10 MPa from the hydrogenated fatty products. Preferably the hydrogen pressure is between 0.2 and 5 MPa. Preferably the metal is nickel. It is recommended to effect the separation by filtration, using a filter comprising vertical pressure leaves. Also it is possible to treat the hydrogenated fatty product with hydrogen under a pressure between 0.05 and 10 MPa before separating the metal from the fatty product.

Méthode pour éliminer des savons métalliques d'acides gras, dérivés de métaux avec un nombre atomique de 27 à 29 et de produits gras hydrogénés; elle consiste à séparer un métal solide précipité sous l'effet de l'hydrogène à une pression de 0,05 à 10 MPa à partir de produits gras hydrogénés. La pression d'hydrogène se situe de préférence entre 0,2 et 5 Mpa, et on privilégie le nickel comme métal. Il est recommandé d'effectuer la séparation par filtration, avec un filtre à cadres verticaux. Il est possible aussi de traiter le produit gras hydrogéné par de l'hydrogène sous une pression de 0,05 à 10 Mpa, avant de séparer le métal du produit gras.

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