Modified aluminas and the use thereof in fcc catalysts

C - Chemistry – Metallurgy – 01 – F

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C01F 7/04 (2006.01) B01J 21/04 (2006.01) B01J 29/04 (2006.01) B01J 37/08 (2006.01) C10G 11/04 (2006.01) C10G 11/05 (2006.01)

Patent

CA 2103844

A modified alumina is useful as metals passivator in fluidizable catalytic cracking catalysts. The modified alumina is prepared from a hydrated alumina, e.g., gibbsite, which is reacted with a low-molecular weight organic acid, e.g., acetic acid, forming aluminum salts. Calcination of the modified alumina results in decomposition of the aluminum salt.

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