Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Patent
1989-07-31
1991-10-01
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
502 78, 502 79, B01J 2906, B01J 2908, B01J 2918
Patent
active
050533720
ABSTRACT:
This invention relates to basic compositions comprising a zeolite and an alkaline earth metal compound wherein the sum of the amount of the alkaline earth metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite. This invention further relates to methods for preparing the instant compositions. In a preferred embodiment the instant compositions are prepared by impregnating a zeolite with a solution of an alkaline earth metal salt wherein said alkaline earth metal impregnated in the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite, precipitating out an insoluble alkaline earth metal compound within the zeolite by contact with a precipitation agent, and/or drying the resultant impregnated/(precipitated) material and then calcining the resultant composition.
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Dees Carl F.
Shell Oil Company
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