Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization
Patent
1985-07-29
1986-10-21
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By isomerization
208111, 208120, C07C 522
Patent
active
046187383
ABSTRACT:
Catalytically active amorphous silicas are prepared by dehydrating a silica hydrogel or precipitate prepared from an acidified aqueous silicate solution containing an amine of pK.sub.a above 10 or a cation containing either a nitrogen or phosphorus atom bonded to four carbon atoms. The resultant amorphous silica is catalytically active for, among other chemical reactions, the isomerization of orthoxylene and the cracking of hydrocarbons.
REFERENCES:
patent: 2741646 (1956-04-01), Clark
patent: 3493341 (1970-02-01), Le Page et al.
patent: 3556725 (1971-01-01), Chiola et al.
patent: 4061724 (1977-12-01), Grose et al.
patent: 4073865 (1978-02-01), Flanigen et al.
patent: 4270017 (1981-05-01), Young
patent: 4283306 (1981-08-01), Herkes
patent: 4325929 (1982-04-01), Young
patent: 4344927 (1982-08-01), Young
patent: 4414137 (1983-11-01), Young et al.
patent: 4428825 (1984-01-01), Ward et al.
patent: 4428862 (1984-01-01), Ward et al.
patent: 4481102 (1984-11-01), Young et al.
patent: 4501925 (1985-02-01), Young et al.
patent: 4513158 (1985-04-01), Young et al.
"Amorphous Silica" by P. K. Maher set forth in the Kirk-Othmer Encyclopedia of Chemical Technology, 2nd ed., vol. 18, pp. 61-72, (1969).
"High Surface Area Amorphous Silica-Alumina Cracking Catalysts with Controlled Site Spacings" by M. R. S. Manton, set forth Feb., 1978, by the Council for Scientific and Industrial Research, South Africa.
"Crystalline Silicic Acids and Their Interface Reactions" by G. Lagaly set forth in Advances in Colloid and Interface Science, vol. 11, pp. 105-148 (1979).
"Stable Si-H Groups on Silica Surfaces" by Morterra and Low set forth in Chemical Communications, p. 203 (1968).
"Reactive Silica, VIII. Methoxylation of Silica Using Trimethoxymethane" by Low and Mark set forth in Journal of Catalysis, vol. 44, pp. 300-305 (1976).
"Reactive Silica. XII. The Sorption and Polymerization of Several Alkenes" by Low and Mark set forth in Journal of Catalysis, vol. 50, pp. 373-378 (1977).
"Reactive Silica. X. Ethylene Sorption and Polymerization of Several Alkenes" by Low and Mark set forth in Journal of Catalysis, vol. 48, pp. 104-110 (1977).
"Reactive Silica. XIII. Activation of Silica by Pyrolizing Chemisorbed HSiCl.sub.3 " by Low and Mark set forth in Journal of Catalysis, vol. 54, pp. 219-222 (1978).
"Some Quaternary Ammonium Silicates" by Merrill and Spencer set forth in Journal of Physical and Colloidal Chemistry, vol. 55, pp. 187-195 (1951).
"Catalytic Properties of Attrition Ground Silica" by Hatcher, Jr., et al., set forth in Journal of Catalysis, vol. 38, pp. 73-79 (1975).
"Reactive Silica. I. The Formation of a Reactive Silica by the Thermal Collapse of the Methoxy Groups of Methylated Aerosil" by Morterra and Low set forth in the Journal of Physical Chemistry, vol. 73, No. 2, pp. 321-326, Feb. (1969).
"Reactive Silica. II. The Nature of the Surface Silicon Hydrides Produced by the Chemisorption of Hydrogen" by Morterra and Low set forth in the Journal of Physical Chemistry, vol. 73, No. 2, pp. 327-333, Feb. (1969).
"Infrared Study of Surface Modes on Silica" by Boccuzzi et al., set forth in the Journal of Physical Chemistry, vol. 82, No. 11, pp. 1298-1303 (1978).
Koepke Jeffery W.
Young Dean A.
Davis Curtis R.
Sandford Dean
Thompson Alan H.
Union Oil Company of California
Wirzbicki Gregory F.
LandOfFree
Hydrocarbon conversion process with catalytically active amorpho does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrocarbon conversion process with catalytically active amorpho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrocarbon conversion process with catalytically active amorpho will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1291130