Production of acid hydrocarbon conversion catalysts

Details Production of acid hydrocarbon conversion catalysts Production of acid hydrocarbon conversion catalysts

B - Operations, Transporting

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B01J 27/06 (2006.01) B01J 27/12 (2006.01) B01J 27/14 (2006.01) B01J 37/26 (2006.01) C07C 2/60 (2006.01) C07C 4/06 (2006.01) C07C 4/10 (2006.01) C07C 5/22 (2006.01) C07C 5/27 (2006.01)

Patent

CA 1044688

ABSTRACT OF THE DISCLOSURE A process for the production of a solid acidic catalyst which process comprises reacting a compound of formula XF5 wherein X is phosphorus, arsenic, antimony, bismuth, tantalum, vanadium or niobium with an inorganic oxide containing surface hydroxyl groups and having an Ho value of less than -3Ø The acid strength of a solid surface is defined as its proton-donating ability, quantitatively expressed by Hammett and Deyrup's Ho function where Ho = - log ?H+ f B/f BH+ and where ?H+ is the hydrogen ion activity of the surface acid and fB and fBH+ are activity coefficients of the basic and acid forms, respectively of an adsorbed indicator. In a preferred embodiment alumina is partially fluorinated or sulphonated prior to reaction with the compound XF5, in which X is preferably antimony.

202458

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