Mechanism of byproduct formation in oxidative dehydrogenation of ethylbenzene to styrene on magnesium ferrite-containing catalyst

Journal Article · Fri Oct 10 00:00:00 EDT 1986 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00954211· OSTI ID:6476292

Isagulyants, G V; Kovalenko, L I; Greish, A A; Shakhtakhtinskii, T N; Aliev, F V; Khankishev, R R; Kuliev, A D

In the oxidative dehydrogenation of ethylbenzene (EB) to styrene on magnesium ferrite-containing catalysts, the principal byproducts are benzene and toluene, the total content of which amounts to 6% by weight under optimal conditions. At the same time, a small quantity of CO/sub 2/ appears in the contact gas as a product of exhaustive oxidation of the aromatic hydrocarbons. It was established by means of the kinetic isotope method (KIM) that, on KS-4 catalyst, benzene and toluene are formed both from the original EB and from the styrene end-product, whereas the sole predecessor of the CO/sub 2/ that is formed is the styrene. In connection with the search for means of improving the selectivity of dehydrogenation of EB to styrene on magnesium ferrite-containing catalysts, the authors have investigated the mechanism of formation of these byproducts, using ethylbenzene and styrene labeled with /sup 14/C.

• Research Organization: N.D. Zelinskii Institute of Organic Chemistry, Moscow, USSR
• OSTI ID: 6476292
• 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

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALKYLATED AROMATICS
AROMATICS
BENZENE
CARBON 14 COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
DEHYDROGENATION
FERRIMAGNETIC MATERIALS
FERRITES
FLOW COUNTERS
HYDROCARBONS
IRON COMPOUNDS
LABELLED COMPOUNDS
LABELLING
MAGNESIUM COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PROPORTIONAL COUNTERS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION DETECTORS
RADIOCHEMICAL ANALYSIS
RADIOCHROMATOGRAPHY
SEPARATION PROCESSES
STYRENE
SYNTHESIS
TOLUENE
TRANSITION ELEMENT COMPOUNDS
YIELDS