Zobrazeno 1 - 7
of 7
pro vyhledávání: '"I. V. Desyatov"'
Publikováno v:
Reaction Kinetics & Catalysis Letters. 51:45-50
Modification of γ-Al2O3 by sodium hydroxide promotes the increase of surface basicity but does not exert a strong effect on catalytic activity in the reaction of thiolane production from tetrahydrofuran and H2S. Introduction of NaOH to γ-Al2O3 in s
Publikováno v:
ChemInform. 26
Tetrahydrofuran recyclization to thiolane (the Yuriev reaction) was studied in the presence of alumina. Thiolane formation at 200–500°C was found to be accompanied by cracking of both the initial matter and the product, yielding hydrocarbons and c
Publikováno v:
Reaction Kinetics & Catalysis Letters. 47:119-123
Kinetic studies of tetrahydrofuran reaction with H2S were carried out in a flow-circulation reactor. Presumably, the reaction takes place through dissociative chemisorption of reactants and the interaction of surface structures formed to produce thio
Autor:
A. V. Mashkina, I. V. Desyatov
Publikováno v:
Reaction Kinetics & Catalysis Letters. 44:39-44
In the presence of proton-donor catalysts, at 300–400°C tetrahydrofuran interaction with H2S yields up to 25% thiolane. These catalysts are low-selective and have low stability due to the occurrence of decomposition and polymerization processes.
Publikováno v:
Reaction Kinetics & Catalysis Letters. 41:161-165
IR spectra of H2S adsorbed on various types of catalysts have been studied by monitoring changes in the properties of their surfaces from the spectra of probe molecules. It is shown that H2S is adsorbed only dissociatively on basic centers (BC); on p
Publikováno v:
Reaction Kinetics & Catalysis Letters. 41:85-88
IR spectra of H2S adsorbed in various quantities on γ-Al2O3 have been studied. The method of spectral probes has been used to determine the extent of H2S blocking of Lewis acid and basic centers.
Publikováno v:
Reaction Kinetics & Catalysis Letters. 41:97-102
The reaction of tetrahydrofuran with H2S catalyzed by acid-base catalysts has been studied. Catalysts containing an acid-base pair, i.e. a Lewis acid center and a base center, are the most active and selective towards thiolane. Proton donor catalysts