Preparative process for alkaline earth metal,...

Details Preparative process for alkaline earth metal,... Preparative process for alkaline earth metal,...

B - Operations, Transporting

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B01J 21/04 (2006.01) B01J 23/02 (2006.01) B01J 23/10 (2006.01) C01F 7/16 (2006.01)

Patent

CA 1197224

ABSTRACT OF THE DISCLOSURE An improved process for the production of alkaline earth, aluminum-containing spinel compositions, preferably magnesium, aluminum-containing spinel compositions and preferably further comprising at least one additional metal component, comprises adding a basic aqueous solution containing at least one aluminum component to an aqueous solution containing at least one alkaline earth metal component to form a precipitate at defined pH conditions and calcining the precipitate to form a spinel composition. The product spinel composition, preferably with included additional metal components, is particularly suited for use to reduce the amount of sulfur oxides emitted from a catalyst regeneration zone, e.g., a catalytic cracking unit regeneration zone.

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