Zobrazeno 1 - 10
of 128
pro vyhledávání: '"O V, Bragin"'
Autor:
A. P. Barkova, T. S. Dorokhina, O. V. Bragin, D. B. Furman, V. Yu. Borovkov, V. B. Kazanskii, A. V. Zaitsev
Publikováno v:
Russian Chemical Bulletin. 42:624-627
The state of Re and Tc in low-percentage alumina-rhenium (0.25 % Re) and aluminatechnetium (0.1 % Tc) catalysts reduced by H2 at 500–900 °C was studied using IR spectra of the diffuse reflection of the adsorbed CO. A highly dispersed (probably two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bcb7e8e507a093d044f24817063b09c
https://doi.org/10.1007/bf00703992
https://doi.org/10.1007/bf00703992
Publikováno v:
Russian Chemical Bulletin. 42:436-440
The activity and selectivity of low-percentage (0.1–1 mass. %) Re-Al2O3 and Tc-Al2O3 catalysts in the dehydrogenation ofn-dodecane is shown to increase in response to an increase in the temperature of their activation in hydrogen from 500°C to 900
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bececddc9bfde038cd346b1fb2c4712
https://doi.org/10.1007/bf00698425
https://doi.org/10.1007/bf00698425
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3125b9ce25927a97ba5da6f3569030a
https://doi.org/10.1002/chin.199229126
https://doi.org/10.1002/chin.199229126
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:2143-2146
The alkylation of benzene by propane over pentasil-aluminum compositions (HTsVM-γ-Al2O3) has been studied for a wide range of compositions and also over dealuminated and dehydroxylated samples. It has been established that Al2O3 plays little if any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::527f1a12ae1c31732f9dafc10c9b6be8
https://doi.org/10.1007/bf01150735
https://doi.org/10.1007/bf01150735
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:1168-1174
Reaction of Ti(O-n-Bu)4 (TBT) with AlR3 (R = Me, Et,i-Bu) in solvents such as R2O, Py, and Et3N, reduces Ti(IV) to Ti(III), Ti(II), or Ti(I). The organotitanium compounds formed by the reaction of TBT with organoaluminum compounds (OAC) undergo homol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6116de4520d715be71631cd77a86b2d0
https://doi.org/10.1007/bf00864175
https://doi.org/10.1007/bf00864175
Autor:
O. V. Bragin, P. E. Matkovskii, D. B. Furman, L. N. Russiyan, A. P. Lisitskaya, V. N. Noskova
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:1175-1182
The formation and properties of active centers were studied in the dimerization of ethylene and polymerization of acetylene in the Ti(O-n-Bu)4-AlEt3 system, in heteroatomic solvents. The absence of ionic stages in the dimerization in dibutyl ether wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd6d0c63a4f118f7906394519d4ac979
https://doi.org/10.1007/bf00864176
https://doi.org/10.1007/bf00864176
Autor:
A.Yu. Khodakov, T. V. Vasina, A. A. Klyuchanskii, O. V. Bragin, V. B. Kazanskii, Leonid M. Kustov
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:1004-1010
The catalytic characteristics (in the aromatization of propane and propylene) and acidic characteristics (IR spectra in diffuse scattered light) of modified crystalline heterosilicates (Pt, Zn, Ga) were studied. It was shown that new centers, capable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::260e7755f35bd8d2cb7e1c273fd6fcf8
https://doi.org/10.1007/bf00866574
https://doi.org/10.1007/bf00866574
Autor:
A. G. Pogorelov, T. V. Yanchevskaya, D. B. Furman, O. V. Bragin, A. Yu. Belyankin, Alexander Ivanov
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:1011-1014
The optimum conditions for the production of C9-C24 olefins with yields of 20–25% (remainder hexenes) by oligomerization of liquid propylene at the Ni(PPh3)n (n=2–4)—Et3Al2Cl3 catalytic system were determined by simplex design of experiments. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfae515f9745cef9715971879f491973
https://doi.org/10.1007/bf00866575
https://doi.org/10.1007/bf00866575
Publikováno v:
Catalysis Today. 13:639-643
Aromatization of ethane over high silica zeolites modified by Zn, Ga or Pt was studied in the presence of intermetallic hydrogen acceptor Zr2Fe. Elimination of hydrogen formed during the reaction at 500–550°C by acceptor resulted in 4–6 fold hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd00b984e1c0bf3c961ecb0b1e8f3438
https://doi.org/10.1016/0920-5861(92)80102-s
https://doi.org/10.1016/0920-5861(92)80102-s
Autor:
V. I. Yakerson, Zh. L. Dykh, O. V. Bragin, V. D. Nissenbaum, T. V. Vasina, V. P. Sitnik, E. L. Denisova, L. I. Lafer
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:1733-1738
Condensation products (CP) formation during the aromatization of propane on pentasils modified by Zn and Ga (1–5%) has been studied by IR spectroscopy, and thermal and chemical analyses. The amount of CP increases with increasing Zn concentration b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7d43c6a3aa10cb6846e1a4836d8c3dd
https://doi.org/10.1007/bf00960394
https://doi.org/10.1007/bf00960394