Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1989-07-12
1990-09-04
Stoll, Robert L.
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
C01B 3328
Patent
active
049543261
ABSTRACT:
A process for producing a crystalline aluminosilicate zeolite characterized by having (a) a silica/alumina mole ratio of from 10 to 100, (b) X-ray lattice distances d shown in Table A of the specification, and (c) a specific n-hexane adsorption, under limited measuring conditions, of at least 0.07 g/g, which comprises maintaining a silica source, an alumina source, and a zeolite selected from zeolites ZSM-5 and zeolites having said characteristics, in an aqueous solution containing 1 to 200 millimoles, per gram of said zeolite, of an alkali metal hydroxide under such temperature, pressure and time conditions as to produce a crystalline aluminosilicate zeolite; and a crystalline aluminosilicate zeolite characterized by having aforesaid properties (a) to (c) and (d) a (2-methylpentane/cyclohexane) adsorption ratio of from 1.1 to 1.6.
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Onodera Tamio
Sakai Tokuji
Sumitani Koji
Yamasaki Yasuo
Breneman R. Bruce
Stoll Robert L.
Teijin Petrochemical Industries Ltd.
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