Mechanism of dehydroxylation of naturally occurring high-silica zeolites involving the formation of Lewis acid sites

Journal Article · Sun Nov 01 00:00:00 EST 1987 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:5306695

Kazanskii, V B

Using low-temperature adsorbed dihydrogen and carbon monoxide as molecular probes, the dehydroxylation of the hydrogen forms of the zeolites Y, and ZSM-5 has been studied. The high stability of the high-silica zeolites to dealumination and their difference from faujasites has been established as being due not only to the strength of their Broensted acid sites but also to the nature of their Lewis acid sites. The chemical properties of the Lewis acid sites and their possible role in catalytic reactions are discussed.

• Research Organization: N. D. Zelinskii Institute of Organic Chemistry, Moscow (USSR)
• OSTI ID: 5306695
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Vol. 28:3; Other Information: Translated from Kinet. Katal.; 28: No. 3, 557-565(May-Jun 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
HETEROGENEOUS CATALYSIS
ZEOLITES
CATALYTIC EFFECTS
CHEMICAL REACTIONS
SORPTIVE PROPERTIES
ADSORPTION
ALKENES
BROENSTED ACIDS
CARBON MONOXIDE
CATALYSTS
CHEMICAL REACTION KINETICS
COMPARATIVE EVALUATIONS
CRYSTAL LATTICES
DEMETALLIZATION
HYDROGEN
HYDROXIDES
INFRARED SPECTRA
LEWIS ACIDS
PH VALUE
SILICA
VIBRATIONAL STATES
CARBON COMPOUNDS
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SPECTRA
SURFACE PROPERTIES
400201* - Chemical & Physicochemical Properties