Purification of .alpha.-acids and .beta.-acids

Details Purification of .alpha.-acids and .beta.-acids Purification of .alpha.-acids and .beta.-acids

C - Chemistry, Metallurgy

12

C

C12C 3/10 (2006.01) C07C 45/78 (2006.01)

Patent

CA 2308395

Unsaturated organic compounds, in particular .alpha.-acids and .beta.-acids, are purified prior to hydrogenation by mixing them with an adsorbent capable of adsorbing catalyst poisons, preferably activated carbon, and separating the adsorbent containing the catalyst poisons to recover the thus purified unsaturated organic compounds. A significant reduction in the use of hydrogenation catalyst is realized.

L'invention consiste à purifier avant hydrogénation des composés organiques insaturés, en particulier des acides alpha et des acides beta . Pour ce faire, on mélange ces derniers à un adsorbant capable d'adsorber des poisons catalytiques, de préférence à du charbon actif. On sépare ensuite l'adsorbant contenant les poisons catalytiques de façon à récupérer les composés organiques insaturés ainsi purifiés. On réduit ainsi considérablement la quantité de catalyseur d'hydrogénation utilisée.

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