Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By ring formation from nonring moiety – e.g. – aromatization,...
Patent
1985-10-15
1987-05-12
Pal, Asok
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By ring formation from nonring moiety, e.g., aromatization,...
585415, 585467, 585469, 585470, 585475, 585481, 585640, 585654, 585733, 208116, 208120, C07C 120
Patent
active
046652485
ABSTRACT:
The ion-exchange capacity and acid catalytic activity of a ZSM-5 type zeolite are increased by treatment of a physical mixture of the zeolite and an inorganic oxide with water in the presence of an alkali metal cation.
Specifically, the catalyst is prepared by contacting a mixture of a crystalline zeolite having a silica to alumina ratio above 12 and a Constraint Index between about 1 and about 12, and a solid source of aluminum with liquid water in the presence of an activating amount of an alkali metal cation and under a combination of conditions including a temperature up to about 370.degree. C. for less than about an hour to about 100 hours to induce increased activity to the zeolite.
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Chang Clarence D.
Miale Joseph N.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
Pal Asok
Santini Dennis P.
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