Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Patent
1989-01-06
1992-01-21
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
502 80, B01J 2012, B01J 2016
Patent
active
050828134
ABSTRACT:
Mineral aluminosilicates enhanced as ion-exchange media for separating diverse ionic materials are provided by dry heating. A hydrated mineral alumino-silicate is irreversibly dehydrated in part, to improve the ratio of its affinity for preferred ions, relative to non-preferred ions, even though doing so reduces its affinity for both types of ions. Such dehydration is accomplished by heating the aluminosilicate until a temperature is reached at which its affinity for non-preferred cations is reduced enough that the ratio of its affinity for preferred ions to its affinity for non-preferred ions is greatly increased. Such aluminosilicates may be zeolites, such as clinoptilolite, or layered clays, such as vermiculite or smectite. 850.degree. C. is an example of such temperature.
REFERENCES:
patent: 2947709 (1960-08-01), Ray
patent: 3033641 (1962-05-01), Thomas, Jr.
patent: 3375206 (1968-03-01), Shaw
patent: 3411888 (1968-11-01), Westerland et al.
patent: 4522727 (1985-06-01), Weber
patent: 4686198 (1987-08-01), Bush et al.
Zeolite Molecular Sieves, Breck, John Wiley & Sons, 1974, pp. 558, 670, 671.
Zeolite Chemistry and Catalysis, Rabo, American Chemical Society, Wash., D.C., 1976, pp. 174-176.
Dees Carl F.
McClure Charles A.
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