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Interaction of refractory inorganic materials with a KVO/sub 3/-V/sub 2/O/sub 5/ melt (in Russian)

Journal Article · · J. Appl. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6338462
; ;
The purpose of this work was to study the interaction of a molten KVO/sub 3/-V/sub 2/O/sub 5/ catalyst (25 wt. % V/sub 2/O/sub 5/) with refractory inorganic materials based on the oxides of silicon, aluminum, calcium, magnesium, and zirconium. A melt with the composition indicated displays catalytic activity in the process of the oxidative dehydrogenation of ethylbenzene. The kinetic parameters of the dissolution of refractory inorganic materials based on silicon, aluminum, calcium, magnesium, and zirconium oxides in a KVO/sub 3/-V/sub 2/O/sub 5/ melt have been determined. The materials based on aluminum oxide, which does not interact chemically with the melt, are most stable. The dissolution of silicate materials containing calcium and magnesium oxides is accompanied by the destruction of their crystal lattices and the formation of vanadates. The reaction of zirconium oxide with the melt results in the formation of potassium zirconate on the surface of the material.
Research Organization:
Perm' Polytechnic Institute, USSR
OSTI ID:
6338462
Journal Information:
J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:12; ISSN JAPUA
Country of Publication:
United States
Language:
Russian

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Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CRACKING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DECOMPOSITION
DISSOLUTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
KINETICS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PHASE STUDIES
POTASSIUM COMPOUNDS
PROCESSING
PYROLYSIS
REACTION KINETICS
REFINING
REFRACTORIES
SILICON COMPOUNDS
SILICON OXIDES
SOLUBILITY
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VANADATES
VANADIUM COMPOUNDS
VANADIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES