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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.

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.

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.

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.

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