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Investigations on the heterogenous catalytic hydrogenation using isotope effect and gamma- and neutron radiation

Abstract

The kinetic and solvent isotope effects during the maleic acid heterogeneous catalytic hydrogenation and deuteration in light and heavy water have been studied. Also the effect of the gamma and neutron irradiation on the Ni-ZnO catalysts (with various ratios of components) on the reaction kinetics and mechanism has been measured, as well as the effect of pH on the adsorption behaviour of maleic acid and the temperature dependence of the reaction rate. Existence of different adsorption centers for hydrogen and maleic acid could be deduced from these experiments. A reaction mechanism based on the two-dimensional diffusion of components in the surface is proposed. The catalyst is formed from Ni and ZnO-microspheres. Hydrogen is bound to nickel and maleic acid is adsorbed on the ZnO-microspheres. The reaction takes place on the boundary layers of these microspheres.
Authors:
Kudlacek, R; Cabicar, J [1] 
  1. Ceske Vysoke Uceni Technicke, Prague (Czechoslovakia). Katedra Jaderne Chemie
Publication Date:
Jan 01, 1976
Product Type:
Conference
Reference Number:
AIX-08-282941; EDB-77-037463
Resource Relation:
Journal Name: J. Radioanal. Chem.; (Hungary); Journal Volume: 30:2; Conference: 8. radiochemical conference, Marianske Lazne, Czechoslovakia, 27 Apr 1975; Other Information: 1 fig., 6 refs
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; CATALYSTS; CHEMICAL RADIATION EFFECTS; DEUTERIUM; ISOTOPE EFFECTS; MALEIC ACID; HYDROGENATION; AQUEOUS SOLUTIONS; CATALYSIS; CHEMICAL REACTION KINETICS; HEAVY WATER; MICROSPHERES; PH VALUE; TEMPERATURE DEPENDENCE; CARBOXYLIC ACIDS; CHEMICAL REACTIONS; CHEMISTRY; DICARBOXYLIC ACIDS; DISPERSIONS; HYDROGEN COMPOUNDS; HYDROGEN ISOTOPES; ISOTOPES; KINETICS; LIGHT NUCLEI; MIXTURES; NUCLEI; ODD-ODD NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; RADIATION CHEMISTRY; RADIATION EFFECTS; REACTION KINETICS; SOLUTIONS; STABLE ISOTOPES; WATER; 400302* - Organic Chemistry- Isotope Effects- (-1987); 400600 - Radiation Chemistry
OSTI ID:
7324591
Country of Origin:
Hungary
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: JRACB
Submitting Site:
INIS
Size:
Pages: 471-474
Announcement Date:

Citation Formats

Kudlacek, R, and Cabicar, J. Investigations on the heterogenous catalytic hydrogenation using isotope effect and gamma- and neutron radiation. Hungary: N. p., 1976. Web.
Kudlacek, R, & Cabicar, J. Investigations on the heterogenous catalytic hydrogenation using isotope effect and gamma- and neutron radiation. Hungary.
Kudlacek, R, and Cabicar, J. 1976. "Investigations on the heterogenous catalytic hydrogenation using isotope effect and gamma- and neutron radiation." Hungary.
@misc{etde_7324591,
title = {Investigations on the heterogenous catalytic hydrogenation using isotope effect and gamma- and neutron radiation}
author = {Kudlacek, R, and Cabicar, J}
abstractNote = {The kinetic and solvent isotope effects during the maleic acid heterogeneous catalytic hydrogenation and deuteration in light and heavy water have been studied. Also the effect of the gamma and neutron irradiation on the Ni-ZnO catalysts (with various ratios of components) on the reaction kinetics and mechanism has been measured, as well as the effect of pH on the adsorption behaviour of maleic acid and the temperature dependence of the reaction rate. Existence of different adsorption centers for hydrogen and maleic acid could be deduced from these experiments. A reaction mechanism based on the two-dimensional diffusion of components in the surface is proposed. The catalyst is formed from Ni and ZnO-microspheres. Hydrogen is bound to nickel and maleic acid is adsorbed on the ZnO-microspheres. The reaction takes place on the boundary layers of these microspheres.}
journal = {J. Radioanal. Chem.; (Hungary)}
volume = {30:2}
place = {Hungary}
year = {1976}
month = {Jan}
}