Results 231 to 240 of about 33,099 (286)

Clustering of molecular hydrogen around benzene

Chemical Physics, 2006
Clustering of H2 molecules around benzene shows a number of interesting features that are important for understanding the interaction of hydrogen with certain materials. Clustering has been studied by ab initio calculations and by the development of a model potential.
David W.H. Swenson, Heather M. Jaeger, Clifford E. Dykstra   +2 more
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Partial hydrogenation of benzene to cyclohexene

Applied Surface Science, 1997
Abstract We (Asahi Chemical Industy Co., Ltd.) have developed a technology for a highly selective partial hydrogenation of benzene to cyclohexene and succeeded in the commercialization of a new production process for producing cyclohexanol from benzene through cyclohexene.
H. Nagahara, M. Ono, M. Konishi, Y. Fukuoka   +3 more
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Gas phase benzene hydrogenation on a nickel-silica catalyst III. Low-field magnetization measurements on hydrogen, benzene, cyclohexene and cyclohexane adsorption, and benzene hydrogenation

Journal of Catalysis, 1977
Abstract Magnetization-volume isotherms of benzene, Cyclohexene and cyclohexane show that chemisorption of these hydrocarbons on the nickel surface of a Ni/SiO 2 catalyst stops at partial coverage. The approximate number of bonds between the hydrocarbons and nickel can be assigned.
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Hydrogen migration on Alumina/Palladium catalysts for benzene hydrogenation

Journal of Catalysis, 1971
Abstract Benzene was hydrogenated in a slug reactor at 150 °C with hydrogen passing continuously over a catalyst consisting of mixtures of alumina and of palladium supported on alumina. As the metal-supported catalyst was diluted with alumina, the percentage hydrogenation per milligram palladium in the catalyst increased and approached a limiting ...
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Hydrogenation of benzene on technetium catalysts

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1986
1. The specific activity of technetium on various supports in the hydrogenation of benzene is only slightly dependent on the nature of the support. 2. Catalysts containing technetium are more active than those containing rhenium.
O. V. Pokrovskaya, Yu. V. Voronin, G. N. Pirogova   +2 more
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Catalytic hydrogenation of benzene

1998
Abstract The catalytic hydrogenation of benzene has been carried out as a model reaction to increase the hydrogenated cyclic compounds from aromatics. Catalyst samples containing nickel on different supports were prepared and tested. It was found that α-Al2O3 supported nickel showed the best activity for benzene conversion reaction. Nickel metal area,
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Chemical equilibrium: The hydrogenation of benzene

Journal of Chemical Education, 1962
This procedure examines the reversible reaction between benzene and hydrogen, forming cyclohexane, in the presence of a metal catalyst.
R. J. Kokes, M. K. Dorfman, T. Mathia
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Participation of Benzene Hydrogen Bonding upon Anion Binding

Organic Letters, 2005
A m-xylene-bridged imidazolium receptor, 1, has been designed and synthesized. The receptor 1 utilizes two imidazole (C-H)(+)- - -anion hydrogen bonds and one benzene hydrogen- - -anion hydrogen bond. The major driving force of complexation between the receptor 1 and anions comes from two imidazole (C-H)(+)- - -anion hydrogen bonds.
Sungjae, In, Seung Joo, Cho, Kyu Hwan, Lee, Jongmin, Kang   +3 more
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Benzene hydrogenation over transition metal carbides

1997
Abstract The hydrogenation of benzene has been carried out at atmospheric pressure on high surface area transition metal carbides. 100% selectivity to cyclohexane was achieved, with benzene conversions ranging from o to 100%. Activities were comparable to the of a 5% Ru/Al2O3 catalyst, but deactivation due to carbon deposition was observed on the ...
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Partial hydrogenation of benzene over platinum supported catalysts

Reaction Kinetics and Catalysis Letters, 1984
Parlial hydrogenation of benzen to cryclohexene has been stuclied on Pt/Nylon 66, Pt/MgO and Pt/TiO2. An effect of the support on the selectivity to cycloexene was observed, Pt/Nyion showing the highest seleetivity, followed by Pt/MgO and Pt/TiO2. An interaction of platinum with the more basic supports (Nylon, MgO) and a pretreatment under oxidizing ...
P. STAITI, GALVAGNO, Signorino, P. ANTONUCCI, A. ROSITANI, P. VITARELLI   +4 more
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