Zobrazeno 1 - 10
of 16
pro vyhledávání: '"L. V. Bryukhovetskaya"'
Autor:
S. I. Zherebtsov, N. V. Malyshenko, L. V. Bryukhovetskaya, S. Yu. Lyrshchikov, Z. R. Ismagilov
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 17, Iss 2, Pp 165-171 (2015)
The copper cations sorption by brown coal, humic acids and residual coal samples after the extraction of humic acid was studied by using the methods of spectroscopy FT-IR, EPR, Solid State CP/MAS 13C-NMR. Samples of lignite (brown coal) of the Tisuls
Externí odkaz:
https://doaj.org/article/6455b5ccb9c046a8b78fcdce14c2db1f
Autor:
S. I. Zherebtsov, N. V. Malyshenko, Z. R. Ismagilov, L. V. Bryukhovetskaya, S. Yu. Lyrshchikov, A. P. Nikitin
Publikováno v:
Coke and Chemistry. 61:396-400
The influence of chemical modification on the functional–group composition of humic acids derived from Tisul’sk lignite (Kansko-Achinsk Basin) is studied. The structural changes of the humic acids as a result of destructive alkylation of n-butano
Autor:
S. I. Zherebtsov, Z. R. Ismagilov, N. V. Malyshenko, L. V. Bryukhovetskaya, S. Yu. Lyrshchikov
Publikováno v:
Coke and Chemistry. 61:266-269
The reaction of cobalt cations with humic acids produced from Tisul lignite (Kansko-Achinsk Basin) is investigated. The influence of modification by hydrogen peroxide on the functional-group composition of the humic acids and their sorptional propert
Publikováno v:
Coke and Chemistry. 60:433-438
The sorption of Mn2+ ions from aqueous solutions of humic acids derived from Tisul’sk lignite is investigated. The influence of treatment of the humic acids by hydrogen peroxide on their sorptional characteristics is considered. The sorptional capa
Publikováno v:
Coke and Chemistry. 60:397-403
By IR Fourier spectroscopy, EPR, and 13C NMR analysis in solids, the sorption of copper, zinc, and manganese cations by various materials from aqueous solutions is studied. The materials considered are Tyul’gansk lignite, Tisul’sk lignite in unox
Publikováno v:
Coke and Chemistry. 59:420-423
The sorption of copper cations by native and modified humic acids from Tisul’sk lignite (Kansk-Achinsk Basin) is studied on the basis of ESR data. It is found that variation in concentration of the organic paramagnetic centers and in the g factor o
Publikováno v:
Coke and Chemistry. 58:400-403
Native and modified humic acids obtained from Tisul lignite (from the Kansko-Achinsk Basin) are investigated by IR Fourier, ESR, and solid-state 13C NMR analysis. Treatment with hydrogen peroxide changes the functional-group composition of the humic
Autor:
S. I. Zherebtsov, Z. R. Ismagilov, L. V. Bryukhovetskaya, S. Yu. Lyrshchikov, N. V. Malyshenko
Publikováno v:
Solid Fuel Chemistry. 49:294-303
The sorption of copper cations by the samples of brown coal, humic acids (HAs), and residual coal after HA extraction was studied with the use of Fourier transform IR spectroscopy, EPR spectroscopy, and solid-state 13C NMR spectroscopy. The sorption
Publikováno v:
Technical Physics Letters. 32:255-258
Changes in the binding of copper to a carbon matrix during the reduction of Cu2+ ions to metallic state (Cu0) influence the EPR spectra of unpaired electrons and the rate of hydrogen (H2) and oxygen (O2) exchange in coal-tar carbon fibers (CFs) with
Publikováno v:
ChemInform. 21