Process for the hydration of olefins

C - Chemistry – Metallurgy – 07 – C

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C07C 29/04 (2006.01) B01J 27/16 (2006.01) B01J 35/10 (2006.01)

Patent

CA 2426099

A catalyst support consisting mainly of synthetic silica, with 0.5 - 10 parts by weight of one or more oxides or phosphates of the elements of group IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides characterised in that the support preparation method comprises mixing particulate synthetic silica with particulate oxides or phosphates of the elements of Groups IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides, or with precursors thereof, a forming step and calcination. The catalyst support is used together with phosphoric acid in the production of alcohols from olefins by hydration.

L'invention concerne un support de catalyseur se composant principalement de silice synthétique, ainsi que de 0,5 à 10 parties en poids d'un ou de plusieurs oxydes ou phosphates d'éléments des groupes IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB IIB, IIIA, IVA et des lanthanides. Le procédé de préparation de ce support est caractérisé en ce qu'il consiste à mélanger une silice synthétique particulaire avec des oxydes ou phosphates particulaires des éléments des groupes IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA et des lanthanides, ou avec des précurseurs de ceux-ci, puis à exécuter une étape de formage et une calcination. On utilise ce support de catalyseur en même temps que de l'acide phosphorique, pour produire des alcools, au moyen d'une hydratation, à partir d'oléfines.

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