Zobrazeno 1 - 10
of 67
pro vyhledávání: '"V. Ya. Danyushevskii"'
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 33:2217-2221
Ca aluminates are used as a component of catalysts of gas-phase processes, some of which take place with the participation of water. Nickel calcium aluminate catalysts are thus used for hydrogenation of CO and CO/sub 2/ to CH/sub 4/ and water; zinc c
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 33:1988-1992
1. In copper-containing salt catalysts for oxidative chlorination on various carriers, catalysts with the same amount of applied salt component have a different surface composition as a result of the reaction with the carrier. The formation of surfac
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 24:2533-2538
1. During the preparation of coprecipitated nickel and aluminum hydroxides, a nickel hydroaluminate of composition 2Ni(OH)2·2Al(OH)3·5H2O is formed, giving a specific highly dispersed phase. 2. At least two factors are responsible for the particle
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 24:918-922
A comparative consideration of the results of the determination of the values of the specific surface of a nickel phase by x-ray diffraction, magnetic, and chemisorption (according to hydrogen and oxygen) methods was conducted for coprecipitated redu
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:904-908
1. The hydroxylic coating of decationized zeolites L is formed in the 300–450°C interval, and dehydroxylation takes place at 450–520°C. 2. The influence of the temperature of activation of decationized zeolites L on their activity in the cracki
Autor:
V. Ya. Danyushevskii, V. I. Yakerson, L. I. Lafer, A. M. Rubinshtein, I. V. Mishin, B. A. Nabiev
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 26:2468-2473
1. New structural hydroxyl groups are not formed during the elimination of small amounts of Al from type Y zeolites. 2. Extensive elimination of aluminum from such zeolites leads to a marked increase of the concentration of weakly acidic hydroxyl gro
Autor:
V. I. Kadentsev, V. S. Bodganov, A. N. Radin, L. I. Lafer, V. I. Yakerson, Yu. V. Furmer, V. Ya. Danyushevskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 34:1652-1655
Compounds of one class are formed in the heterogeneous catalytic oxidation of ethyl mercaptan, viz. aliphatic polysulfides. Diethyl di-, tri-, and tetrasulfides have been identified by gas chromatography, infrared spectroscopy, and proton magnetic re
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 33:1983-1987
1. Copper chloride catalysts for oxidative chlorination of hydrocarbons are multicomponent heterogeneous systems which consist of both melts of varying composition and of coexisting solid phases formed during thermolysis of the salt component. 2. In
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 20:1818-1822
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 22:504-508