Zobrazeno 1 - 10
of 26
pro vyhledávání: '"V. V. Vol'khin"'
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 17, Iss 4, Pp 309-316 (2015)
This paper deals with determining catalytic activities of titania (TiO2) with various crystalline structures and magnetite (Fe3O4) during mineralization of 4-nitrophenol in aqueous media by ozonation. Among the titania samples under study, amorphized
Externí odkaz:
https://doaj.org/article/f5f651d87ff145e0923530b2e6608aa3
Autor:
I. A. Permyakova, V. V. Vol’khin, D. A. Kazakov, K. Kaczmarski, O. S. Kudryashova, E. A. Sukhoplecheva
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 16, Iss 4, Pp 257-264 (2014)
In order to use waste vegetable oils to produce biodiesel a possibility of reagents (sunflower oil and ethanol) mixture homogenization under the simultaneous effect of two cosolvents (oleic acid and ethyl oleate) was investigated. The possibility of
Externí odkaz:
https://doaj.org/article/62fe09ff4aed41faa17a2ebfb38c974d
Publikováno v:
Russian Journal of Applied Chemistry. 95:588-601
Publikováno v:
Russian Journal of Applied Chemistry. 94:1469-1482
Publikováno v:
Russian Journal of Applied Chemistry. 93:437-448
The patterns of extraction of higher fatty acids from vegetable oils by methanol and ethanol are studied in relation to the production of fatty acid esters. The main factors determining the parameters of extraction systems in equilibrium are determin
Autor:
D. A. Kazakov, G. V. Leont’eva, E. A. Nosenko, M. Yu. Siluyanova, V. V. Vol’khin, Yu. V. Andreeva
Publikováno v:
Russian Journal of Applied Chemistry. 88:1986-1996
The influence of the conditions of the struvite synthesis on its ability to form crystals with developed faces of different forms (hkl) and on the possibility of the subsequent transition to more stable forms was examined. The correlation between the
Publikováno v:
Russian Journal of Inorganic Chemistry. 59:1168-1174
Substitutional solid solutions Mg2+ ↔ Ni2+ of crystal hydrates Mg(1 − x)Ni x NH4PO4 · 6H2O and Mg(1 − x)Ni x NH4PO4 · H2O (where 0 < x ≤ 0.65), which have struvite structure and dittmarite structure, respectively, have been studied. Ion exc
Publikováno v:
Russian Journal of Applied Chemistry. 87:88-94
Effect of the ion composition of aqueous solutions on the oxygen absorption kinetics in a system constituted by a gas (air) and a liquid (aqueous solution) in the presence of microencapsulated quartz particles activating the mass transfer in the liqu
Publikováno v:
Journal of Water Chemistry and Technology. 35:76-79
The sorption removal of Fe(CN)63− ion impurities from water was investigated. A specially synthesized magnesium-aluminum double hydroxide with the hydrotalcite-type structure was used as a sorbent. The biotesting method used for various test object
Publikováno v:
Catalysis in Industry. 3:306-311
The transport of oxygen from the gas to the aqueous phase determines the rate of the biocatalytic oxidation of phenol. In this work, activators of the interphase transfer of O2 are used to intensify the process, thus raising considerably the rate of