Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Activating treatment
Patent
1985-02-22
1987-07-07
Doll, John
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Activating treatment
502 85, 502 77, 423328, 208120, B01J 2938
Patent
active
046787666
ABSTRACT:
A method is provided for enhancing the shape selectivity of a crystalline zeolite having a silica-to-alumina mol ratio greater than 10. The method consists of treating the zeolite with an ammonium fluoride solution at moderately elevated temperature, in the absence or in the presence of a matrix. The products are useful as shape-selective sorbents, and also as shape-selective catalysts for organic reactions including catalytic dewaxing.
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Doll John
Gilman M. G.
Hobbes L. P.
Leeds Jackson
McKillop A. J.
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