Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By ring formation from nonring moiety – e.g. – aromatization,...
Patent
1986-06-13
1987-03-31
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By ring formation from nonring moiety, e.g., aromatization,...
C07C 284
Patent
active
046544542
ABSTRACT:
This invention relates to a process for selective dealumination, particularly surface dealumination of zeolites by sequential ion-exchange and calcination. The process is selective in the sense that the aluminum atoms within the pore structure of the zeolite remain virtually intact.
The surface dealuminated zeolites can be used, after loading with a gallium compound, as catalysts in hydrocarbon conversion reactions.
REFERENCES:
patent: 4180689 (1979-12-01), Davies et al.
patent: 4487843 (1984-12-01), Telford et al.
patent: 4565897 (1986-01-01), Gane et al.
patent: 4579988 (1986-04-01), Kieffer
Breck, Zeolite Molecular Sieves, John Wiley & Sons, N.Y., 1974, pp. 529-590.
Barri Sami A. I.
McNiff Timothy K.
Davis Curtis R.
The British Petroleum Company p.l.c.
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