Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Clay
Patent
1997-11-05
1999-03-16
Lewis, Michael
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Clay
502 83, 502 85, 4231181, B01J 2116
Patent
active
058830359
ABSTRACT:
Disclosed is a process of making mesoporous silico-aluminates from calcium bentonite by controlled extraction of octahedral aluminum under mild condition, by acid, preferably phosphoric acid. The mesoporous silicoaluminates contain only tetrahedral aluminum as the residual aluminum. As the result of the selective removal of the octahedral aluminum, the mesoporous silico-aluminates have several unprecedented properties compared to products produced by conventional processes either by mild acid-activation or by a removal of all the aluminum.
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Dunn Jr. Thomas G.
Engelhard Corporation
Lewis Michael
Moselle Inez L.
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