Search Results - "Petukhov, V N"

Flocculants and Modifiers for More Efficient Flotation and Processing of Coal Sludge by Petukhov, V. N., Svechnikova, N. Yu, Yudina, S. V., Yudin, D. V.

“…Improvement in the efficiency of sludge flotation and processing in coal enrichment by appropriate selection of flocculants and modifiers is considered. Zh…”
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Improving Coal Flotation by Introducing a Modifier by Petukhov, V. N., Shchelkunov, S. A., Malyshev, O. A., Voloshchuk, T. G.

“…The development of coal flotation using a modifier is considered. The modifier considered is a petrochemical product: sodium μ-iso-nonylphenoxyethylene…”
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Quantum Chemical Assessment of the Contribution of Different Hydrogen Bonds to Coal Adhesion at Flotational Bubbles by Petukhov, V. N., Shchelkunov, S. A., Malyshev, O. A., Kubak, D. A.

“…Reactions in heterogeneous mixtures between components in flotation are analyzed. Two models are employed: one describes reactions at the surface of the coal’s…”
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Influence of Water on the Quantum Chemical Interactions in Coal Flotation by Petukhov, V. N., Shchelkunov, S. A., Malyshev, O. A., Kubak, D. A., Yushina, T. I.

“…Flotation using acetylene reagents, which are characterized by marked additional extraction of coal’s organic mass, is investigated. The influence of…”
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Interaction of Acetylenic Alcohols with the Coal’s Surface during Flotation by Petukhov, V. N., Shchelkunov, S. A., Malyshev, O. A., Kubak, D. A., Yushina, T. I.

“…If acetylenic alcohols are used as flotation reagents for coal, coal extraction in the concentrates is increased, the concentrate yield is improved, and the…”
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Improving the Flotation of Fine Coal Slurries by Petukhov, V. N., Svechnikova, N. Yu, Kuklina, O. V., Yudina, S. V.

“…The properties of fine coal slurries at OOO MMK-Ugol and their flotation are studied. To improve the flotation of finely disperse coal slurries, more effective…”
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Kinetics of Flotational Enrichment for Coal with Elevated Content of Fine Slurry by Petukhov, V. N., Svechnikova, N. Y., Yudina, S. V., Gavryushina, Y. V., Seliverstova, T. Y., Yudin, D. V.

“…The influence of four factors—the reagent consumption, the pulp density, the content of fine slurry in the coal pulp, and the flotation time—on the flotation…”
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Influence of Tertiary Acetylenic Alcohols on Coal Flotation by Petukhov, V. N., Shchelkunov, S. A., Malyshev, O. A., Kubak, D. A., Yudina, S. V.

“…The effectiveness of DMIPEK and DK-90 acetylene reagents in the flotational enrichment of coals is studied. In coal flotation, these reagents may be used…”
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Tests of Sinterol Reagent in Flotation at OOO MMK-Ugol by Petukhov, V. N., Smirnov, A. N., Svechnikova, N. Yu, Shulga, A. P., Dundukov, V. G.

“…The flotation conditions for coal with different mineral content of the organic component are studied in the laboratory. The reagent protocol developed, which…”
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Conversion of Coal over an Oxide Catalyst Produced from Natural High-Magnesia Siderite by Smirnov, A. N., Krylova, S. A., Petukhov, V. N., Sysoev, V. I., Nikiforova, V. M., Zhusupova, Zh. S.

“…The conversion of coal and coal tar over iron–magnesium oxide catalyst produced from natural high-magnesia siderite is investigated. The use of this catalyst…”
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Searching for Effective Coal-Flotation Agents by Quantum-Chemical Modeling by Kubak, D. A., Petukhov, V. N., Voloshchuk, T. G., Svechnikova, N. Yu

“…The potential of oil-processing byproducts and various aliphatic and cyclic oxygen-bearing compounds as coal-flotation agents is investigated. In the search…”
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Analysis of Intermolecular Complexes of Coal’s Organic Mass in the Search for Composite Flotation Reagents by Petukhov, V. N., Smirnov, A. N., Voloshchuk, T. G., Kubak, D. A.

“…Cyclic oxygen-bearing compounds and products of petroleum processing are considered as potential composite reagents. In searching for highly effective…”
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Improved Coal Flotation with Sinterol Modifier by Petukhov, V. N., Smirnov, A. N., Voloshchuk, T. G., Svechnikova, N. Y., Dundukov, V. G.

“…The flotation of coal with different ash content when using Sinterol modifier is studied. If the modifier consumption is 1.0–3.0 g/t of coal fines, the…”
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Predictions of Coal Flotation on the Basis of a Factorial Experiment by Petukhov, V. N., Svechnikova, N. Yu, Kuklina, O. V., Puzina, A. S., Gavryushina, Ya. V., Voloshchuk, T. G., Basarygin, M. V.

“…The influence of the pulp density and the consumption of collection agent, frothing agent, and air on the flotation of coal fines at OAO MMK-Ugol is studied by…”
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Utilization of coal-flotation wastes at OAO TsOF Belovskaya by Petukhov, V. N., Svechnikova, N. Yu, Yudina, S. V., Gorokhov, A. V., Lavrinenko, A. A., Kharchenko, V. F.

“…Flotation wastes at OAO TsOF Belovskaya are studied with a view to their disposal in systems for the combustion of high-ash coal. Analysis indicates that, if…”
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High-frequency variations of spectral lines in cromospherically active stars 61 cyg AB by Zhilyaev, B. E., Bondar, A. V., Andreev, M. V., Pokhvala, S. M., Ivashchenko, Yu. M., Reshetnyk, V. M., Petukhov, V. N., Svyatogorov, O. A., Verlyuk, I. A.

“…We report on the detection of rapid variability in subsecond mode in the Balmer lines of hydrogen, lines Ca II H,K, and b Mg I triplet in chromospherically…”
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Plant Biotests for Soil and Water Contaminated with Oil and Oil Products by Petukhov, V N, Fomchenkov, V M, Chugunov, V A, Kholodenko, V P

“…Reactions of higher plants (mustard, oat, rye, lettuce, dill and barley) and microalgae (Euglena gracilis) to the contamination of soil and water with oil and…”
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Active computing experiment in modeling the dynamics of mechatronic systems by Shornikov, Yu.V., Timofeev, K.A, Petukhov, V.N.

“…In the process of debugging the structure of dynamic models of various technical systems, the need arises for direct intervention in the modeling process. The…”
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Effective foaming agents for coal flotation: A quantum-chemical approach by Petukhov, V. N., Kubak, D. A.

“…The effectiveness of the following compounds as foaming agents is evaluated: heteropolar ketones and sulfoxides whose molecules contain oxygen and sulfur; and…”
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Assessment of the flotation activity of reagents in terms of the hydrogen bond energy in molecular complexes with active sites of the coal surface by Petukhov, V. N., Kubak, D. A.

“…The hydrogen bond energy of molecular complexes between a flotation reagent and coal’s organic mass is calculated for the first time. The electron density…”
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