Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1984-01-17
1986-04-08
Doll, John
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
502 60, 502 77, 502 85, 585467, C01B 3328
Patent
active
045812144
ABSTRACT:
A process for producing a thermally shock calcined aluminosilicate zeolite comprising (A) precalcining an aluminosilicate zeolite at a relatively low temperature, (B) very rapidly increasing the temperature of the aluminosilicate zeolite to a relatively high temperature for a short period of time, and (C) rapidly cooling the aluminosilicate zeolite. The resulting zeolite is catalytically active for hydrocarbon conversion reactions and is particularly selective for the production of para-xylene from a reaction mix of toluene and a methylating agent.
REFERENCES:
patent: 3528615 (1970-09-01), Kokotailo
patent: 3766056 (1973-10-01), Young
patent: 3941871 (1976-03-01), Dwyer et al.
patent: 4016218 (1977-04-01), Haag et al.
patent: 4270017 (1981-05-01), Young
patent: 4325929 (1982-04-01), Young
patent: 4344927 (1982-08-01), Young
patent: 4414137 (1983-11-01), Young et al.
patent: 4433187 (1984-02-01), Young
Jeffrey L. Fox, "Zeolites Catalyze Patent Dispute" Science Jan. 4, 1985 pp. 35-36.
R. von Ballmoos and W. M. Meier, "Zoned Aluminium Distribution in Synthetic Zeolite ZSM-5," Nature, vol. 289, Feb. 26, 1981, pp. 782-783.
Stephen Budiansky, "Research Article Triggers Dispute on Zeolite," Nature, vol. 300, Nov. 25, 1982, p. 309.
Lovat V. C. Reece, "When is a Zeolite Not a Zeolite?," Nature, vol. 296, Apr. 8, 1982, pp. 491-492.
C. F. Fyfe, G. C. Gobbi, J. Klinowski, J. M. Thomas, and S. Ramdas, "Resolving Crystallographically Distinct Tetrahedral Sites in Silicalite and ZSM-5 by Solid-State NMR," Nature, vol. 296, Apr. 8, 1982, pp. 530-533.
D. H. Olsen, W. O. Haag, and R. M. Lago, "Chemical and Physical Properties of the ZSM-5 Substitutional Series," Journal of Catalysis, vol. 61, 1980, pp. 390-396.
Doll John
Finkle Yale S.
Leeds Jackson
Sandford Dean
Union Oil Company of California
LandOfFree
Shock calcined aluminosilicate zeolites does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shock calcined aluminosilicate zeolites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock calcined aluminosilicate zeolites will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2065144