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Babenko A.A.,Ural Federal University | Zhuchkov V.I.,Ural Federal University | Smirnov L.A.,RAS Institute of Metallurgy | Sychev A.V.,RAS Institute of Metallurgy | And 4 more authors.
Steel in Translation | Year: 2015

A technology for slag formation in the ladle–furnace unit is considered; the slag is based on the CaO–SiO2–MgO–Al2O3–B2O3 system. This technology permits both microalloying of the steel with boron (reduced from the oxide phase) and desulfurization of the steel. The resulting boron content in the steel is 0.001–0.008%; the sulfur content in low-alloy steel and pipe steel is low (0.004–0.010%); and the consumption of manganese ferroalloys is reduced to 0.5 kg/t for 08кп steel and 1.4 kg/t for 09Г2C steel. In addition, the proposed technology increases the strength of the rolled steel, without loss in its plasticity; and reduces the environmental impact thanks to the replacement of fluorspar by colemanite. © 2015, Allerton Press, Inc.


Shabanov E.Z.,Karaganda State Technical University | Baisanov S.O.,Abishev Chemical and Metallurgical Institute | Isagulov A.Z.,Karaganda State Technical University | Baisanov A.S.,Abishev Chemical and Metallurgical Institute | Chekimbaev A.F.,Abishev Chemical and Metallurgical Institute
Russian Metallurgy (Metally) | Year: 2014

The results of experimental studies of obtaining a complex alloy of aluminosilicochrome from high-ash coals of the Karaganda basin are presented. As a result of carrying out large-scale laboratory studies, a high-quality alloy not subjected to disintegration is formed. A method for melting of refined grades of ferrochrome using aluminosilicochrome as a reducer is suggested. © 2014 Pleiades Publishing, Ltd.


Kasenova S.B.,Abishev Chemical and Metallurgical Institute | Mukusheva G.K.,International Research and Production Holding Fitokhimiya | Kasenov B.K.,Abishev Chemical and Metallurgical Institute | Sagintaeva Z.I.,Abishev Chemical and Metallurgical Institute | And 3 more authors.
Russian Journal of Physical Chemistry A | Year: 2015

The enthalpies of dissolution of pinostrobin hydrazone C16H16N2O3, (N-ethyl-2-(5-hydroxy-7-methoxy-2-phenylchroman-4-ylidene)hydrazino-1-carbothiamide) thiosemicarbazone C19H21N3O3S, salvigenine C18H16O6, and pinostrobin-2-(5-hydroxy-7-methoxy-2-phenylchroman-4-ylidene)-N-phenylhydrazino- 1-carbothiamide thiosemicarbazide C23H21N3O3S are measured on a DAK-I-IA calorimeter at flavonoid: ethanol molar ratios of 1: 9000, 1: 18000, and 1: 36000. Their standard enthalpies of dissolution in 96% ethanol are calculated from the obtained data. Their standard enthalpies of combustion, melting, and formation are estimated by approximate methods. © 2015 Pleiades Publishing, Ltd.


Abil'Daeva A.Z.,Abishev Chemical and Metallurgical Institute | Kasenova Sh.B.,Abishev Chemical and Metallurgical Institute | Kasenov B.K.,Abishev Chemical and Metallurgical Institute | Sagintaeva Zh.I.,Abishev Chemical and Metallurgical Institute | And 4 more authors.
Russian Journal of Physical Chemistry A | Year: 2014

The enthalpies of myricetin dissolution are measured by means of calorimetry with mol dilutions of flavonoid: 96 mol % ethanol equal to 1: 9000, 1: 18000, and 1: 36000. The standard enthalpies of dissolution for the biologically active substance in an infinitely diluted (standard) solution of 96% ethanol are calculated from the experimental data. Physicochemical means of approximation are used to estimate the values of the standard enthalpy of combustion, and the enthalpy of melting is calculated for the investigated flavonoid. Finally, the compound's standard enthalpy of formation is calculated using the Hess cycle. © 2014 Pleiades Publishing, Ltd.


Kasenova Sh.B.,Abishev Chemical and Metallurgical Institute | Abil'Daeva A.Zh.,Abishev Chemical and Metallurgical Institute | Sagintaeva Zh.I.,Abishev Chemical and Metallurgical Institute | Davrenbekov S.Zh.,Abishev Chemical and Metallurgical Institute | Kasenov B.K.,Abishev Chemical and Metallurgical Institute
Russian Journal of Physical Chemistry A | Year: 2013

The heat capacities of the new manganite ferrites NdMIMnFeO 5 (MI = Li, Na) are investigated in the range of 298.15-673 K by dynamic calorimetry. It is found that in the investigated temperature range, Cp ° ∼ f(T) curves exhibit λ-shaped effects at 348 and 473 K for NdLiMnFeO5, and at 423 K for NdNaMnFeO5, corresponding probably to phase transitions of the second kind. Equations describing the experimentally obtained Cp ° ∼ f(T) curves are derived, and the temperature dependences of the investigated compounds' thermodynamic functions, S°(T), H°(T) - H°(298.15), and Φ xx (T), are calculated. © 2013 Pleiades Publishing, Ltd.


Kim V.A.,Abishev Chemical and Metallurgical Institute | Razdobreev V.G.,Abishev Chemical and Metallurgical Institute | Kudarinov S.K.,Abishev Chemical and Metallurgical Institute | Bivoino D.G.,Abishev Chemical and Metallurgical Institute | Dzhundibaev M.K.,Abishev Chemical and Metallurgical Institute
Coke and Chemistry | Year: 2015

Tests are conducted on the production of high-ash coke from Batyr, Kuuchek, and Sary-Adyr coal (Kazakhstan). The mechanical strength of the coke is assessed. © 2015, Allerton Press, Inc.


Tolymbekov M.Z.,Abishev Chemical and Metallurgical Institute | Baisanov S.O.,Abishev Chemical and Metallurgical Institute | Izbembetov Z.Z.,AO TNK Kazkhrom | Abdulabekov E.E.,AO TNK Kazkhrom | Akuov A.M.,Abishev Chemical and Metallurgical Institute
Steel in Translation | Year: 2010

A method of batch briquetting is proposed to permit the use of fine fractions of ore and carbon reducing agents in ferroalloy production. Briquets are produced in six forms, using four different reducing agents and chrome ore in different ratios. The tests confirm the possibility, in principle, of producing high-carbon ferrochrome from uniform briquetted batch, without the use of ore chunks. © 2010 Allerton Press, Inc.


Kasenova S.B.,Abishev Chemical and Metallurgical Institute | Atazhanova G.A.,Fitokhimiya International Research and Production Holding | Sagintaeva Z.I.,Abishev Chemical and Metallurgical Institute | Kasenov B.K.,Abishev Chemical and Metallurgical Institute | And 2 more authors.
Russian Journal of Physical Chemistry A | Year: 2016

The enthalpy of dissolution of sesquiterpene lactone grossheimin C15H18O4 is measured using a DAK-I-IA calorimeter at a lactone/ethanol (96%) molar ratios equal to 1 : 18000, 1 : 36000, and 1 : 72000. The standard enthalpy of dissolution of grossheimin in a 96% ethanol solution is calculated based on the resulting data. The temperature dependence of the heat capacity of grossheimin Cp ° ∼ f (T) is studied by means of dynamic calorimetry using a IT-C-400 device in the temperature range of 298.15–423 K. An equation describing this dependence is derived. The standard enthalpies of combustion, melting, and formation of grossheimin are calculated using approximate methods. © 2016, Pleiades Publishing, Ltd.


Ul'eva G.A.,Karaganda State Industrial University | Kim V.A.,Abishev Chemical and Metallurgical Institute
Coke and Chemistry | Year: 2012

Existing methods of determining the porosity of special coke obtained from Shubarkol' D coal are analyzed. Selection principles for a rational method are established, and the calculation results are compared. Results given by various methods for the porosity of special coke after fast and slow heating are presented. © 2012 Allerton Press, Inc.

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