Zobrazeno 1 - 10
of 320
pro vyhledávání: '"N. S. Polyakov"'
Publikováno v:
Metallurgist. 51:425-433
The use of schungite as a partial replacement for coke is practiced in Russia at a number of metallurgical plants, both in the production of foundry iron (its primary use) and in making conversion pig iron. The largest amount of coke is replaced when
Autor:
R. Sh. Vartapetyan, A. Yu. Tsivadze, A. M. Voloshchuk, A. Ya. Fridman, I. I. Bardyshev, N. P. Sokolova, N. S. Polyakov, G. A. Petukhova, A. M. Gorbunov
Publikováno v:
Russian Journal of Physical Chemistry A. 81:593-597
Polyvinylchloride (PVC) samples with a fairly developed surface were prepared by the spontaneous removal of the solvent (benzyl alcohol) from a polymer gel. The surface of the product was modified to obtain ethanolocyclame and sodium acetocyclame nan
Publikováno v:
Russian Chemical Bulletin. 55:770-774
Active carbons (ACs) with diverse microporous and developed mesoporous structures were prepared by chemical and phisochemical activation methods from walnut shells, fruit stones, and grape seeds. The surface chemistry was studied by chemical titratio
Publikováno v:
Russian Chemical Bulletin. 54:2726-2729
Adsorption of benzene and water vapors on activated carbons of various microporous structure was studied. The values of the characteristic energy of adsorption of benzene and water vapors were compared and the affinity coefficients βH2O for carbons
Autor:
G. A. Petukhova, N. S. Polyakov
Publikováno v:
Adsorption. 11:357-362
An enhancement in characteristic energy of adsorption in large micropores is analyzed. The effect is due to the overlapping of potential fields from opposite walls of pores and to reduction of the surface adsorption film on filling the micropore volu
Publikováno v:
Russian Chemical Bulletin. 52:1078-1082
The mean values of the characteristic energy of C6H6 adsorption in large micropores were calculated from the adsorption isotherms of benzene vapor on carbon blacks. The supermicropores are characterized by the significant dispersion of the adsorption
Publikováno v:
Colloid Journal. 65:155-158
Elution dynamics of the adsorption of methanol vapors on humidified active carbon is studied. Elution curves are obtained for the various lengths of adsorbent layer. The isotherm of adsorption of methanol–water vapor mixtures on active carbon is ca
Autor:
M. L. Gubkina, N. S. Polyakov
Publikováno v:
Russian Chemical Bulletin. 51:1675-1679
The elution dynamics of adsorption on activated carbon was studied at various carrier-gas flow rates for a series of organic substances. With the help of the model of the equilibrium adsorption layer that uses the adsorption isotherm described by the
Publikováno v:
Russian Chemical Bulletin. 50:595-598
The isotherms of water adsorption in the presence of an organic substance vapor with a specified concentration are calculated from experimental data on the joint frontal dynamics of adsorption of water vapor and several organic substances (benzene, h
Publikováno v:
Russian Chemical Bulletin. 50:974-979
A regularity govering variations of volume and linear size of micropores in carbon adsorbents during their vapor-gas activation was found. A parameter was proposed that characterizes the degree of development of the micropore system in activating car