Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1981-06-23
1983-03-08
Meros, Edward J.
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
252455Z, 260448C, 423328, C01B 3328
Patent
active
043761046
ABSTRACT:
Crystalline aluminosilicates having a high silica to alumina molar ratio are prepared by mixing a source of silica, a source of alumina, a source of alkali metal, water and one or more substituted neopentylamines having the formula: ##STR1## wherein R.sup.2 is H, OH or NH.sub.2 and R.sup.1 is a C.sub.1 to C.sub.6 alkyl group, and maintaining the mixture under conditions of elevated temperature and pressure, typically in the range from 80.degree. to 210.degree. C. and autogenous pressure for a time sufficient to effect formation of the aluminosilicate, typically not less than 4 hours. The molar ratio of silica to alumina in the initial mixture is suitably in the range from 10:1 to 150:1 and the amounts of alkali metal and neopentylamine are suitably in the range from 2:1 to 0.02:1 and 10:1 to 0.02:1 respectively moles per mole equivalent of total silica and alumina in the respective sources. Depending on the ratio of silica to alumina in the initial mixture crystalline aluminosilicates having a mordenite structure or a ZSM-5 type zeolite structure or mixtures thereof may be prepared. Mordenites having a silica to alumina ratio greater than 10:1 can be prepared.
REFERENCES:
patent: 3506400 (1970-04-01), Eberly et al.
patent: 4107195 (1978-08-01), Rollmann
patent: 4151189 (1979-04-01), Rubin et al.
patent: 4242233 (1980-12-01), Ball
Voorhies "J. of Catalysis" 22, 1971, 419-426.
Ball William J.
Stewart David G.
Meros Edward J.
The British Petroleum Company Limited
LandOfFree
Method for preparing crystalline aluminosilicates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing crystalline aluminosilicates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing crystalline aluminosilicates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1734301