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), Vol. 35:4; Other Information: Translated from Izvestiya Akademii Nauk SSSR Seriya Khimicheskaya, 35: No. 4, 778-781(Apr 1986)
• Country of Publication: United States
• Language: Russian

Related Subjects

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