Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1991-08-19
1993-03-09
McFarlane, Anthony
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 86, 423704, 423705, B01J 2906
Patent
active
051927276
ABSTRACT:
Zeolite LZ-202 and other zeolites synthesized in the absence of organic templating agents and having a crystal structure isotypic with the mineral mazzite are subjected to a three-step treatment to greatly increase their surface area, catalytic activity and adsorptive capacity for adsorbates having molecular dimensions as large as the SF.sub.6 molecule. The treatment steps involve an initial conventional NH.sub.4.sup.+ ion-exchange, steaming at temperatures in excess of 300.degree. C. and a low-pH NH.sub.4.sup.+ ion-exchange at pH values below 4.0.
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Best Donald F.
Nair Vinayan
Vail Lawrence D.
McBride Thomas K.
McFarlane Anthony
Miller Richard G.
UOP
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