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1.
Savos'kin M. V. Yaroshenko A. P. Shologon V. I. Galushko L. Ya. 《Russian Journal of Applied Chemistry》2003,76(7):1179-1181
Petroleum sorption on expanded graphite prepared from residual graphite hydrosulfate at 300-900°C was studied as influenced by pretreatment of the sorbent with water. 相似文献
2.
S.B. Lyubchik L.P. Tikhonova O.L. Galushko I.M. Fonseca 《Applied Surface Science》2006,252(17):6084-6088
Selective adsorption of platinum group metals (PMG) on activated carbons from a multi-component model and technological solutions was proposed for the preparation of heterogeneous-supported catalysts. Activated natural anthracites and a nitrogen-containing synthetic carbon are considered as carriers for Pd-supported catalysts. Their catalytic activity was studied in the Pd-catalyzed reactions of hydrogen peroxide decomposition and chloride ions oxidation by manganese(III). On the base of the obtained results, novel high sensitive analytical methods both for direct determination of supported-metal quantity and palladium oxidation states on the surface of spent adsorbents are suggested. 相似文献
3.
Yaroshenko A. P. Savos'kin M. V. Magazinskii A. N. Galushko L. Ya. 《Russian Journal of Applied Chemistry》2004,77(2):192-195
The influence exerted by the particle size and the distribution of sol impurities in the initial graphite, and also by pyrite additives, on the properties of residual graphite hydrosulfates synthesized by oxidation in the CrO3-H2SO4 system was studied. 相似文献
4.
Svetlana B. Lyubchik Irene I. Perepichka Olga L. Galushko Andrey I. Lyubchik Elena S. Lygina Isabel M. Fonseca 《Adsorption》2005,11(5-6):581-593
In order to understand the patterns of the adsorption equilibrium of Cr (III) on activated carbon, the adsorption process
was studied by two different ways: classical batch experiments on commercial Norit and Merck activated carbons and their oxidized
forms in a wide range of pHs; and extended time-based tests at the same pH values on the same adsorbents. This approach allowed
us to understand the role of texture, chemical carbon surface functionality and experimental conditions (initial pH of the
solution, contact time and adsorbate/adsorbent ratio) on the effectiveness of Cr (III) removal. The adsorption process of
Cr (III) at (24 ± 1∘C) on Merck and Norit activated carbons and their oxidized forms were studied at pH values between 1.5 and 5 (either adjusted
or buffered). Chromium concentration was fixed at 200 ppm. The carbon loading ranged from 1.2 to 20 g/l. The carbon/Cr (III)
solution contact time was varied from 0.5–1 month to 5 months, to ensure that the saturation of the carbon level was reached.
According to the data obtained, the presence of carboxylic groups on carbon surface seems to enhance Cr (III) uptake at initial
pH of the solution in the range between 2 and 4. Depending on the nature of the adsorbent surface chemistry, the contact time
to reach equilibrium may range from 3 to 5 months. There is an optimum carbon loading which limits the Cr (III) uptake/removal
at given pH value. In order to understand the adsorption process, an ion exchange, surface complex and surface precipitation
were considered.
This paper was presented in the 5th Brazilian Meeting on Adsorption, held at Natal, Brazil, 18-21 July, 2004. 相似文献
5.
S. V. Galushko 《Chromatographia》1993,36(1):39-42
Summary To calculate retention in reversed-phase, high-performance liquid chromatography a method based on the molecular structure of the analyte and the characteristics of sorbents and mobile phases has been employed. Characteristics of different ODS-columns in water-methanol eluents have been determined. 相似文献
6.
V. A. Soloshonok N. Yu. Svistunova V. P. Kukhar' V. A. Solodenko N. A. Kuz'mina A. B. Rozhenko S. V. Galushko I. P. Shishkina A. O. Gudima Yu. N. Belokon' 《Russian Chemical Bulletin》1992,41(2):311-315
Alkylation, by -haloalkylphosphonates, of the Ni(II) complex of the Schiff base formed from glycine and (S)-2-N-(N1-benzylprolyl)-o-aminobenzophenone has been used for the asymmetric synthesis of (S)-2-amino-4-phosphonobutyric and (S)-2-amino-5-phosphonovaleric acids.Institute of Bioorganic Chemistry and Oil Chemistry, Ukrainian Academy of Sciences, 250800 Kiev. A. N. Nesmeyanov Institute of Organometallic Compounds, Russian Academy of Sciences, 117813 Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 2, pp. 397–402, February, 1992. 相似文献
7.
V. A. Soloshonok V. P. Kukhar' S. V. Galushko M. T. Kolycheva A. B. Rozhenko Yu. N. Belokon' 《Russian Chemical Bulletin》1991,40(5):1046-1054
The diastereo- and enantioselective synthesis of the previously unknown 2(R), 3(S)--phenylserines containing fluorine atoms, the O-CHF2-, O-CF3-, and CF3 groups in the benzene ring, was carried out by alkylation of a Ni(II) complex of a Schiff base of glycine with (S)-2-N-(N'-benzylprolyl)aminobenzophenone by fluorine-substituted benzaldehydes. The factors influencing the stereochemical result of the reactions studied are not the steric characteristics of the substituents in benzaldehydes, but their electronic nature.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1166–1175, May, 1991. 相似文献
8.
9.
An approach for experimental modeling of elementary field cells with heterogeneous polarization is proposed. It is shown that such cells may be obtained by the superposition of orthogonally linearly polarized waves with relatively simple phase surfaces and close intensities. The experimental arrangement for obtaining elementary field cells is suggested. The characteristics of a polarization cell may be easily changed by the change of superposed beam parameters. The results of experimental investigation are presented. 相似文献
10.