Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Nikolai V. Chesnokov"'
Autor:
M. A. Mikhailenko, Svetlana A. Kuznetsova, Yu. N. Malyar, N. N. Drozd, N. Yu. Vasilyeva, Nikolai V. Chesnokov, Boris N. Kuznetsov, Tatyana P. Shakhtshneider
Publikováno v:
Russian Journal of Bioorganic Chemistry. 46:1323-1329
A comparison of IR spectra and molecular weight distribution of arabinogalactan sulfates as sodium and ammonium salts obtained using various sulfating reagents was performed. According to the data, sulfated derivatives of arabinogalactan differ from
Publikováno v:
chemistry of plant raw material. :373-380
The method of preparation of organo-mineral fertilizer with increased resistance to mineral components leaching by water, based on the impregnation of support from abies bark by water solution of potassium nitrate, zinc, copper and magnesium sulphate
Autor:
Svetlana A. Schislenko, Boris N. Kuznetsov, Svetlana A. Kuznetsova, Galina P. Skvortsova, Nikolai V. Chesnokov, Irina V. Korolkova, Anastasya A. Moroz
Publikováno v:
Journal of Siberian Federal University. Chemistry. :122-132
Methods have been developed for the preparation of enterosorbents by treating crushed abies bark with the 1.5% aqueous of NaOH solution or by extraction with hexane. It was found that all obtained enterosorbents have good sorption properties with res
Autor:
Maxim A. Lutoshkin, Boris N. Kuznetsov, Nikolai V. Chesnokov, G. P. Skwortsova, N. M. Mikova, V. А. Levdanskiy, А. М. Zhizhaev
Publikováno v:
Biomass Conversion and Biorefinery. 11:1565-1573
The organic xerogels, prepared from tannins and ethanol lignins of the fir (Abies sibirica), were synthesized for the first time. The influence of the composition of initial mixture and pH on the characteristics of xerogels obtained by sol-gel conden
Autor:
Anatoliy A. Sobolev, Oxana P. Taran, Alexey V. Rudkovskiy, Nikolai V. Chesnokov, Anna O. Eremina
Publikováno v:
Vestnik Тomskogo gosudarstvennogo universiteta. Khimiya. :65-78
Publikováno v:
Russian Journal of Applied Chemistry. 92:1422-1431
Method is suggested for obtaining biochar materials by treatment of a finely dispersed (≤0.1 mm) bark of aspen and(or) larch with a 40% formaldehyde solution and subsequent thermal activation of the activated bark. It was found that keeping the com
Publikováno v:
Journal of Siberian Federal University. Chemistry. :423-433
The ability of producing of effective carbon sorbents from abies bark with the use of thermal alkaline activation in presence of potassium hydroxide was shown. The effects of ratio of bark to alkalin, and temperature of bark pre-carbonization on the
Publikováno v:
Kinetics and Catalysis. 60:273-280
Thermogravimetric (TG/DTG) methods have been used to study the thermal destruction of fir and aspen ethanol lignins at different heating rates in an inert (argon) medium. For each of the lignins, the main stages of thermal degradation were found unde
Publikováno v:
Solid Fuel Chemistry. 52:240-246
Porous materials prepared from brown and black coals were used as sorbents for the extraction of chromium(VI) from aqueous solutions. They were compared with an AG-3 commercial sorbent. The effect of the acidity of reaction medium on the adsorption o
Autor:
Boris N. Kuznetsov, R. Z. Pen, Svetlana A. Kuznetsova, Nikolai V. Chesnokov, Evgeniya S. Skurydina, G. P. Skvortsova, Yu. N. Malyar, Oleg Khanchich
Publikováno v:
Theoretical Foundations of Chemical Engineering. 52:664-669
The effect of the conditions of the acetylation process of raw and activated birch bark on the yield and composition of the products is investigated. The structure of biologically active betulin diacetate (BDA) is confirmed with physicochemical metho