Chromium oxide catalysts with low valence state ions for heterocyclic ring formation (in Russian)
Journal Article
·
· Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)
Aluminum-chromium catalysts with additions of alkali and rare-earth element (REE) oxides catalyze both the heterocyclization of H/sub 2/S with C/sub 6/ hydrocarbons and the dehydrocyclization of alkanes into aromatic hydrocarbons. The two reactions carried out on chromium-containing catalysts proceed via the same steps of dehydrogenation of alkanes to alkenes and alkadienes. Catalysts for dehydrogenation and heterocyclic ring formation have similar physicochemical properties, and Cr/sup 2 +/ ions are present in the dehydrogenating active sites. The authors compare the catalytic effect of aluminum-chromium catalysts both with and without K/sub 2/O and REE oxide additives on the synthesis of 2-methylthiophene (MT) from n-pentane and H/sub 2/S.
- Research Organization:
- N.D. Zelinskii Institute of Organic Chemistry, Moscow, USSR
- OSTI ID:
- 6226410
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 35:4; ISSN BACCA
- Country of Publication:
- United States
- Language:
- Russian
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·
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
COMPARATIVE EVALUATIONS
DEHYDROCYCLIZATION
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MATERIALS TESTING
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PENTANE
POLYCYCLIC SULFUR HETEROCYCLES
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
TESTING
TRANSITION ELEMENT COMPOUNDS
YIELDS
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
COMPARATIVE EVALUATIONS
DEHYDROCYCLIZATION
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MATERIALS TESTING
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PENTANE
POLYCYCLIC SULFUR HETEROCYCLES
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
TESTING
TRANSITION ELEMENT COMPOUNDS
YIELDS