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Chemistry for Sustainable Development

2006 year, number 1

1.
Sorption Properties of Modified Wood Chips

N. A. BAGROVSKAYA1, T. E. NIKIFOROVA2, V. A. KOZLOV2 and S. A. LILIN1
1Institute of Solution Chemistry, Russian Academy of Sciences,
Ul. Akademicheskaya 1, Ivanovo 153045 (Russia)
E-mail: sal@isc-ras.ru
2Ivanovo State Chemical Engineering University,
Pr. F. Engelsa 7, Ivanovo 153460 (Russia)
(Received February 25, 2005; in revised form August 3, 2005)
Pages: 1-6

Abstract >>
Kinetics and equilibrium of the sorption of Cu(II), Zn(II) and Cd(II) ions on a natural cellulose-containing material
																				  																		



2.
Atomic Emission Method Developed for Determining Mercury Content in the Waste Adsorbents of Lithium Production

S. B. ZAYAKINA1,2, L. M. LEVCHENKO1 and V. N. MITKIN1
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
E-mail: sbz@che.nsk.su
2Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Koptyuga 3, Novosibirsk 630090 (Russia)
E-mail: zayak@uiggm.nsc.ru
(Received May 23, 2005; in revised form October 31, 2005)
Pages: 7-12

Abstract >>
A direct atomic emission method developed for measuring mercury content in powder carbon adsorbents is shown to perform the simultaneous analysis of nuisance admixtures. It provides an express control of mercury content in carbon based modified adsorbents (CMA) used for mercury removal from wastewaters. Analysis accuracy is improved due to simultaneous calculations using several analytical lines of the element, mercury content range being 0.0001
																				  																		



3.
Investigation of Hydrolysis Lignin for the Purpose of Its Possible Use as a Land Reclamation Sorbent for Rehabilitation of Soil Polluted with Radionuclides

I. B. KAPUSTINA, L. N. MOSKALCHUK, T. G. MATYUSHONOK, N. M. POZYLOVA and M. E. KHOLOLOVICH
Joint Institute of Power and Nuclear Research
Pages: 13-18

Abstract >>
Sorption properties of various kinds of hydrolytic lignin
																				  																		



4.
Indirect Electrochemical Oxidation of Phenol by Hydrogen Peroxide in situ Generated from Oxygen in a Gas Diffusion Electrode in Acid and Neutral Media

G. V. KORNIENKO, N. V. CHAENKO and V. L. KORNIENKO
Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences,
Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia)

Pages: 19-22

Abstract >>
Indirect electrochemical oxidation of phenol is studied in acid (pH 2
																				  																		



5.
Inversion Voltammetry for Mercury Detection in Lithium-Containing Solutions and Carbon Sorbents

L. M. LEVCHENKO1, V. N. MITKIN1, T. N. DENISOVA1, P. S. GALKIN2 and A. V. ULANOV1
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
E-mail: luda@che.nsk.su
2JSC
Pages: 23-27

Abstract >>
Inversion voltammetry method applying glass carbon electrode was developed for the case specific mercury control. Mercury concentration was measured in the lithium-containing solvents and in modified carbon adsorbents (MCA). In MCA mercury content was measured after weighted sample burning and mercury stripping by the H2O2 containing 1 M HCl solution. Diapason of mercury concentration measurement was 0.2
																				  																		



6.
Physicochemical Substantiation of the Technology of a Decrease in the Level of Natural Water Acidation with Calcite-Containing Reagents

V. N. MAKAROV, I. P. KREMENETSKAYA, T. N. VASILIEVA and O. P. KORYTNAYA
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials,
Kola Scientific Centre, Russian Academy of Sciences,
Ul. Fersmana 26a, Apatity 184269 (Russia)
E-mail: kreme_vg@chemy.kolasc.net.ru
(Received May 14, 2004; in revised form October 3, 2005)
Pages: 29-34

Abstract >>
Experimental data on the dissolution of calcite in water and in the solution of sulphuric acid were treated with the help of the generalized equation of heterogeneous kinetics. The possibility of using this method to determine the kinetic characteristics of the process was demonstrated. The data on the limiting stage were obtained; rates constants of calcite dissolution under different conditions were calculated.
A procedure to calculate technological parameters of the process leading to a decrease in the level of acidation of natural water was proposed.
																				  																		



7.
Sensor Based on Tin Oxide, Obtained from the Solutions of Extracts

T. N. PATRUSHEVA1, F. M. MOTORIN1, S. A. VINOGRADOV1, V. V. PATRUSHEV2, V. V. MEN’SHIKOV1 and A. I. KHOL’KIN2
1Krasnoyarsk State Technical University,
Ul. Kirenskogo 26, Krasnoyarsk 660049 (Russia)
E-mail: pat@ire.krgtu.ru
2Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia)
(Received October 18. 2004; in revised form March 30, 2005)
Pages: 35-41

Abstract >>
Nanocrystalline tin oxide films were obtained on glass and metal substrates by immersing into the solution of tin carboxylate, centrifuging of the substrate with the solution, followed by thermal treatment. A distinguishing feature of the proposed method is the use of extraction for the synthesis of precursors, which allows us to obtain the precursor material free from any impurities. It was established that the sensitivity of tin oxide films to the gases depends on pyrolysis temperature and is maximal for the films pyrolyzed at 400 oC.
																				  																		



8.
Liquid-Phase Ozonation of Highly Metamorphized Coal

S. A. SEMENOVA, O. N. FEDYAEVA and YU. F. PATRAKOV
Institute of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences,
Ul. Rukavishnikova 21, Kemerovo 650610 (Russia)
E-mail: chem@kemnet.ru
(Received May 23, 2005; in revised form July 6, 2005)
Pages: 43-48

Abstract >>
Dynamics of the accumulation of oxygenated groups during coal ozonation in chloroform is investigated. It is shown that the oxygen content of the organic matter of coal is determined by the availability of reaction centres for ozone molecules. High-molecular water-insoluble acids prevail among coal ozonation products.
																				  																		



9.
High Temperature 5-Hydroxymethylfurfural Synthesis in a Flow Reactor

V. E. TARABANKO1, M. Yu. CHERNYAK1, I. V. NEPOMNYASHCHIY2 and M. A. SMIRNOVA1
1Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia)
E-mail: veta@icct.ru
2Krasnoyarsk State University,
Pr. Svobodny 79, Krasnoyarsk 660049 (Russia)
(Received July 8, 2005)
Pages: 49-53

Abstract >>
A flow reactor was used to study the kinetics of 5-hydroxymethylfurfural synthesis from fructose and sucrose at 240 oC in water solutions containing acetic and phosphoric acid as catalysts. The maximum yield of 5-hydroxymethylfurfural was found to be practically independent of the chosen catalyst and carbohydrate. It attained 40 mol. % at 240
																				  																		



10.
Influence of the water content of milling medium on the mechanical properties of Reaction Bonded Aluminium Oxide (RBAO) ceramics

J. Temuujin1,2,3, J. Coronel1 and M. Senna2
1Advanced Ceramics Group, Technical University of Hamburg-Harburg,
Hamburg, Denickestrasse 15, D-21073 (Germany)
E-mail: jtemuujin@yahoo.com
2Department of Applied Chemistry, Faculty of Science and Technology,
3-14-1 Hiyoshi, Kohoku-ku, Keio University, Yokohama 223-8522 (Japan)
3Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences,
Ulaanbaatar 51 (Mongolia)
(Received November 25, 2005; in revised form December 2, 2005)
Pages: 55-58

Abstract >>
Influence of the water content of milling medium on the properties of reaction bonded aluminium oxide powder precursors and their sintered mechanical properties is studied. As a result of interaction between absolute ethanol and aluminium, the water content of the mixture milled in absolute ethanol increased to 4.7 %. Mechanical properties such as bending strength and toughness of the sintered ceramics depend on the water content of the powder precursors. Higher bending strength, 350 MPa and toughness, 3.7 MPa m1/2 were observed in the sample milled in absolute ethanol. Higher water content of the mixture milled in absolute ethanol is the main reason of the high mechanical properties.
																				  																		



11.
Metallic Aluminum Activation as Initial Stage for Preparing Alumina Based Catalysts and Supports

M. V. TRENIKHIN1, V. K. DUPLYAKIN1, A. I. NIZOVSKIY2 and A. G. KOZLOV3
1Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences,
Ul. Neftez
Pages: 59-65

Abstract >>
Initial stage for preparing alumina supported metal catalysts according to a scheme, essentially reducing harmful wastes, is discussed. Preparation method is based on a direct interaction of pretreated metallic aluminum with water. Diffusion phenomena are shown to be the core of aluminum activation by metallic In
																				  																		



12.
Hydropyrolysis and Hydrogenation Liquid Products of Sapromixite from Barzas Deposit

V. I. SHARYPOV1, B. N. KUZNETSOV1, N. G. BEREGOVTSOVA1, N. YU. VASILIEVA2, V. A. SOKOLENKO1, N. I. PAVLENKO1, A. N. STARTSEV3 and V. N. PARMON3
1Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia)
E-mail: sharypov@icct.ru
2Krasnoyarsk State University,
Pr. Svobodny 79, Krasnoyarsk 660049 (Russia)
3Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
(Received January 21, 2005; in revised form August 1, 2005)
Pages: 67-73

Abstract >>
Liquid products of the autoclave hydrogenation and hydropyrolysis of the Barzas sapromixite were studied. Chromatomass spectrometry was used to determine the content of individual substances in the low boiling fractions. Hydropyrolysis product appeares to consist of normal paraffins by more than 50 mass %. Hydrogenation products is characterized by a higher content of cyclic and structure isomerized paraffins. Aromatics content in both products does not exceed 14.1 mass %. IR and NMR spectroscopy show that fractions boiling above 180 oC contain mostly aliphatic fragments. Hydropyrolysis products composition is similar to that of oil, while hydrogenation product is characterized by more aromatic and shorter aliphatic fragments per statistically average molecule. If mechanically activated iron ore catalyst is used at the sapromixite hydrogenation and hydropyrolysis, the contribution of distillate fractions increases, and low boiling (boiling start 180 oC) fractions contain more low molecular mass hydrocarbons.
																				  																		



13.
Phosphate Anion Sorption by the Sediments of Lake Baikal

AL. V. Likhoshvay and M. A. Grachev
Limnological Institute, Siberian Branch of the Russian Academy of Sciences,
Ul. Ulan-Batorskaya 3, Irkutsk 664033 (Russia)
E-mail: info@lin.irk.ru
(Recieved 06.08.05)
Pages: 75-82

Abstract >>
The behaviour of phosphate anion
																				  																		



14.
Geochemical Processes Occurring in Cryogenic Zones of Sulphide Deposits Oxidation Assisted by Nitrogen Compounds

V. A. PAVLIUKOVA1 and T. I. MARKOVICH2
1Institute of Natural Resources, Ecology and Cryology, Siberian Branch of the Russian Academy of Sciences, Ul. Butina 26, Chita 672014 (Russia)
E-mail: root@cinr.chita.su
2Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Koptyuga 3, Novosibirsk 630090 (Russia)
(Received April 4, 2004; in revised form November 25, 2005)
Pages: 83-86

Abstract >>
Sulphuric acid leaching of sulphide ores assisted by nitrous compounds in Udokan copper deposits was studied regarding the effect of low and high temperatures. Negative temperatures were found to intensify the leaching of copper dramatically. Nitrous acid appears to be the catalyst of the process. Experimental results show that heavy metals in the cryogenic zones of sulphide ores demonstrate high mobility at oxidation processes assisted by nitrous compounds.