Výsledky vyhledávání - "K.V. Topchieva"

Electron spin resonance study of various cation-exchanged zeolites. Adsorption of various species

Autor: V.V. Demkin, E.N. Rosolovskaya, K.V. Topchieva, I.V. Nikolaeva, N.N. Tikhomirova

Publikováno v: Journal of Catalysis. 40:61-66

Adsorption of water, ammonia, benzene, cumene, cyclohexane and pyridine on dehydrated cation-exchanged zeolites have been investigated by the ESR technique in the Q-band. It was shown that the cations in a zeolite framework are capable of migrating a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63f74b3511a5ac15164e771e05451ab4
https://doi.org/10.1016/0021-9517(75)90227-4

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Study of the physical structure and catalytic properties of catalysts containing zeolite in cracking

Autor: S.N. Khadzhiev, L.A. Yandieva, K.V. Topchieva

Publikováno v: Petroleum Chemistry U.S.S.R.. 14:17-24

1. 1. The porous matrix structure of catalysts containing zeolite changes markedly on replacing the inter-micellar water in hydrogel spheres by isobutyl alcohol and isopropylbenzene, the specific surface remaining approximately constant while pore vo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9aaeedfbe6dc7f1d13973ccb270800c0
https://doi.org/10.1016/0031-6458(74)90041-0

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ESR study of various synthetic cation-exchanged zeolites Dehydration under vacuum

Autor: K.V. Topchieva, N.N. Tikhomirova, V.V. Demkin, I.V. Nikolaeva, E.N. Rosolovskaya

Publikováno v: Journal of Catalysis. 29:500-506

Dehydration of cation-exchanged zeolites of the Y type have been investigated by the ESR technique. The exchange of sodium ions with Y 3+ , La 3+ , Zn 2+ , Mg 2+ , Cd 2+ , and Ca 2+ ions ranged from 4 to 70%. The spectra were recorded in the Q band.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e65f3dcc7ae55b8a3e34a8c5d173921
https://doi.org/10.1016/0021-9517(73)90258-3

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Electron spin resonance study of chromium oxide catalysts for the polymerization of ethylene

Autor: A.I. Perel'man, G.B. Sergeyev, K.V. Topchieva, A.V. Topchiev, O.K. Sharayev

Publikováno v: Petroleum Chemistry U.S.S.R.. 2:12-15

IN AN investigation of the polymerization of ethylene on a chromium oxide catalyst [1], we came to the conclusion tha t the activity of the latter is produced by the action of the reacting substance ethylene. The object of the present work was to con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e95989e2cf570ef0558749173076d0a
https://doi.org/10.1016/0031-6458(63)90035-2

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Some data on the polymerization of ethylene on a chromium oxide catalyst

Autor: K.V. Topchieva, A.I. Perel'man, A.V. Topchiev, O.K. Sharayev

Publikováno v: Petroleum Chemistry U.S.S.R.. 1:645-652

Data are given on the polymerization of ethylene on a chromium oxide catalyst at atmospheric pressure and in the absence of a solvent. It has been established that the temperature curves of the polymerization reaction have a clearly expressed inducti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09058595c4898097e69735b45b1a3125
https://doi.org/10.1016/0031-6458(62)90021-7

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