Chemistry of inorganic compounds – Zeolite – Seed used
Patent
1991-07-03
1993-12-28
Dees, Carl F.
Chemistry of inorganic compounds
Zeolite
Seed used
423710, 502 61, C01B 3324, C01F 700, B01J 2904
Patent
active
052737373
ABSTRACT:
Disclosed is a method for preparing crystalline gallosilicates having a molar ratio of SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5 an having a more uniform particle size with enhanced catalytic activity. According to the method of the invention, crystalline gallosilicates are prepared by adding an aged, gallosilicate nuclei-forming gel having a molar ratio of SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5 to an aqueous, alkaline solution containing reactive silicon and gallium compounds to form a mixture. The mixture is then subjected to hydrothermal crystallization conditions to form the crystalline gallosilicate. The gallosilicates prepared by the disclosed method is useful for the preparation of catalysts and adsorbents and in processes for converting low molecular weight hydrocarbons to higher aliphatics and aromatic compounds.
REFERENCES:
patent: 3808326 (1974-04-01), McDaniel et al.
patent: 4166099 (1979-08-01), McDaniel et al.
patent: 4606900 (1986-08-01), Kacirek et al.
patent: 4803060 (1989-02-01), Occelli
patent: 5010048 (1991-04-01), Petit et al.
patent: 5133951 (1992-07-01), Occelli
patent: 5158757 (1992-10-01), Deloprato et al.
"Kirk-Othmer Concise Encyclopedia of Chemical Technology" (1985) M. Grayson, Ed., John Wiley & Sons, Publisher, New York, pp. 772-774.
D. K. Simmons et al. (1987) Journal of Catalysts, vol. 106, pp. 287-291.
J. Ciric (1968) Colloid Interface Sci, vol. 28, pp. 315-324.
Spichtinger Rudolf
Thome Roland
Tissler Arno
Unger Klaus K.
Wallau Martin
Dees Carl F.
VAW Aluminum AG
Veba Oel Ag
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