Chemistry of inorganic compounds – Zeolite – Organic compound used to form zeolite
Reexamination Certificate
2004-10-29
2009-08-25
Brunsman, David M (Department: 1793)
Chemistry of inorganic compounds
Zeolite
Organic compound used to form zeolite
Reexamination Certificate
active
07578993
ABSTRACT:
A process for preparing crystalline alumino-silicate compositions has been developed. The process involves preparing a charge density mismatch reaction mixture comprising sources of aluminum, silicon, optionally an E metal and at least one charge density mismatch (CDM) template. The CDM template is an organic nitrogen containing template, in the hydroxide form, e.g. tetraethylammonium hydroxide and is characterized in that it is incapable of inducing crystallization. To this mixture there is added a solution comprising a second templating agent termed a crystallization template (CT). The CT can be an organic template different from the CDM template, an alkali metal, an alkaline earth metal and mixtures thereof.
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Lewis Gregory J.
Miller Mark A.
Moscoso Jaime G.
Wilson Ben A.
Brunsman David M
Molinario Frank S.
UOP LLC
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