Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Alexander A. Kurzin"'
Autor:
Alexander V. Kurzin, V. B. Franchuk, Yu. I. Sofronova, Andrey N. Evdokimov, Mariana A. Feofanova
Publikováno v:
Russian Journal of Physical Chemistry A. 95:1280-1282
So-called salt rectification, a selective way of separating liquid mixtures based on the use of salts, is discussed. Organic imidazolinium salt is used in this process for the first time. The separation of a model non-aqueous azeotropic acetone–met
Publikováno v:
European Journal of Wood and Wood Products. 79:1027-1029
The composition of tall oil fatty acids includes rosin acids and unsaponifiable substances as impurities. The latter include stilbenes. The total content of stilbenes in tall oil and fatty acids can reach 1%. The presence of stilbenes contributes to
Publikováno v:
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA. 61:14-23
The published data on the solubilities of lithium, sodium, potassium, rubidium and cesium carbonates; sodium bicarbonate; sodium sulphide; potassium and sodium cyanides; orthophosphates, hydro- and dihydroorthophosphates of potassium and sodium, as w
Autor:
Vladimir G. Kazakov, Pavel V. Lukanin, Alexander V. Kurzin, Olesya V. Fedorova, Andrey N. Evdokimov, Alena D. Trifonova
Publikováno v:
Wood Science and Technology. 52:1165-1174
Kraft lignin is a product of the sulfate pulping process. It usually contains 2–3% total sulfur. Sulfur content acts as deterrent to lignin use in some areas. Sulfur-free lignins are more versatile and can be heat-treated without the release of fou
Publikováno v:
European Journal of Wood and Wood Products. 77:491-493
The hydrolysis (or hydrolytic) lignin as a byproduct of ethanol production is made by the treatment of wood with a sulfuric acid solution. It contains up to 2% total sulfur. This work proposes the hydrolysis lignin desulfurization by acid–base meth
Autor:
Larisa M. Popova, Alexander V. Kurzin, Godfried J. H. Buisman, Alena D. Trifonova, Andrey N. Evdokimov
Publikováno v:
Wood Science and Technology. 51:1353-1363
Black liquor soap is used to produce tall oil with subsequent fractionation. The main distilled products are tall oil rosin and fatty acids, as well as pitch. The presence of sulfur compounds in tall products limits the number of their end-use applic
Publikováno v:
Journal of Chemical & Engineering Data. 62:889-892
Salt effect on vapor–liquid equilibrium (VLE) for the toluene + methanol + N-butylpyridinium bromide system at 318.15 K and different salt concentrations (0.300, 0.700, 1.000, 1.200, and 1.500 mol·kg–1) has been determined by headspace gas chrom
Autor:
V. A. Volochaev, Alexander A. Kurzin, V. V. Pryadchenko, Vladimir E. Guterman, D. B. Shemet, Natalia V. Bulat, S. V. Belenov, Ivo Zizak, Leon A. Avakyan, Lusegen A. Bugaev, V. V. Srabionyan
Publikováno v:
Applied Catalysis A: General. 525:226-236
Composite metal-carbon electrocatalysts PtCu/C containing core-shell bimetallic PtCu nanoparticles were synthesized by sequential chemical reduction of Cu (II) and Pt (IV) in carbon suspension, prepared on the basis of ethylene glycol–water solvent
Publikováno v:
Journal of Chemical & Engineering Data. 61:1131-1135
Isothermal vapor–liquid equilibrium data for the system methanol + benzene + tetraphenylphosphonium chloride at four salt molalities {(0.100, 0.200, 0.300, and 0.500) mol·kg–1} have been measured with the help of headspace gas chromatography at
Publikováno v:
Russian Journal of Applied Chemistry. 87:299-302
Method for desulfurization of tall oil pitch is suggested. The method is based on successive treatments with hydrogen peroxide, sulfuric acid, and aqueous solutions of acetonitrile. As a result, the total content of sulfur was reduced from 3800 to 22