Catalytic properties of supported 12-series heteropoly compounds of molybdenum in methanol oxidation
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:5217536
A study has been made of the methanol conversion on bifunctional catalysts prepared by deposition of 12-series heteropoly compounds (HPCs) A/sub x/EMo/sub 12/O/sub 40/ (where A = H/sup +/, Na/sup +/, Cu/sup 2 +/, or Co/sup 2 +/; E = Si/sup 4 +/, P/sup 5 +/) on the supports SiO/sub 2/, TiO/sub 2/, and Al/sub 2/O/sub 3/. It has been established that a lowering of the concentration of protonic centers in the catalysts, whether by increasing the degree of replacement of H/sup +/ in heteropolyacids by metal cations, by depositing the HPC on basic supports, by replacing the P/sup 5 +/ central atom by Si/sup 4 +/, or by increasing the degree of HPC dehydration, leads to an increase in the catalyst selectivity with respect to formaldehyde production, through a lowering of the rates of acid-type reactions
- Research Organization:
- Institute of Catalysis, Novosibirsk (USSR)
- OSTI ID:
- 5217536
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 28:2; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
FLUIDIZED BEDS
FORMALDEHYDE
HETEROGENEOUS CATALYSIS
HETEROPOLY ACIDS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
ION EXCHANGE
KINETICS
MATERIALS TESTING
METHANOL
MOLYBDATES
MOLYBDENUM COMPOUNDS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SODIUM COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
VALENCE
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
FLUIDIZED BEDS
FORMALDEHYDE
HETEROGENEOUS CATALYSIS
HETEROPOLY ACIDS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
ION EXCHANGE
KINETICS
MATERIALS TESTING
METHANOL
MOLYBDATES
MOLYBDENUM COMPOUNDS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SODIUM COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
VALENCE