Zh. Abishev Chemical-Metallurgical Institute (Republic of Kazakhstan):

Mukhtar A. A., Ph. D. in Engineering Sciences, Associate Professor, Head of Laboratory

Momynbekov A. D., Engineer

Nuskabekov Zh. S., Engineer

E-mail (common): bkosimova@mail.ru

National University of Science and Technology MISiS (Russia):

Korovushkin V. V., Doctor of Geology and Mineralogy, Leading Expert, krvsch@mail.ru

The Abailskoye deposit brown iron ore roasting-magnetic processing was studied with a view to the proposed construction of an iron and steel plant. Coal from Shubarkolskoye deposit is applied as a reducing agent in the roasting-magnetic processing. Moessbauer spectroscopy is used for quantitative analysis of iron-containing phases in run-of-mine ore and roasting products. The results of the laboratory studies of the Abailskoye deposit ore roasting-magnetic processing, with the ore ground to –0.1+0 mm size, are presented. Using the experiment planning method, effects of the temperature, roast duration, reducing agent concentration, separation magnetic field intensity factors upon magnetic concentrate yield were studied. A generalized multivariate equation was derived, adequately describing the studied process, revealing the optimum conditions for ore roasting-magnetic processing. With maximum values of all partial functions, chosen by the plotted graphs, the magnetic fraction yield, calculated by the generalized equation, amounted to 96.37 %. The magnetic fraction yield in the test (optimum) experiment was 91.81 % with iron fraction of total mass and recovery being 62.2 and 96.62 %, respectively. By means of Moessbauer spectroscopy it was established that iron in magnetic concentrate was by 86.8 % magnetite.

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2. Tatsienko P. A. Podgotovka trudnoobogatimykh zheleznykh rud (Preparation of refractory iron ores). Moscow, Nedra, 1979, 425 p.
3. Kulikov I. S. On the selection of the conditions of iron oxides recovery with gases in counterflow units. Novyye metody issledovaniya chernykh metallov (New methods for the study of ferrous metals), 1987, pp. 35–41.
4. Batishcheva T. A. Magnetiziruyushchiy obzhig gidrookisnykh rud s tselyu ikh glubokogo obogashcheniya (Magnetized roasting of hydroxide ores for their deep enrichment). Avtoref. dis. … kand. tekhn. nauk (Author's abstract of Dissertation … of Ph. D. in Engineering Sciences), Leningrad, 1986, 118 p.
5. Karmazin V. I. Obzhigmagnitnoe obogashchenie zheleznykh rud (Roast and magnetic separation of iron ores). Moscow, Nedra, 1969, 168 p.
6. Gromov M. I., Rybakov V. N. Podgotovka zhelezorudnogo syrya k metallurgicheskomu peredelu (Preparation of iron ore raw materials to the metallurgical conversion). Moscow, Nauka, 1973, pp. 151–161.
7. Kim V. A., Baltynova N. Z., Mukhtar A. A., et al. Magnetic separation of Lisakovsk raw thermal processing products. Fizikokhimicheskiye i tekhnologicheskiye voprosy metallurgicheskogo proizvodstva Kazakhstana. Trudy KhMI im. Zh. Abisheva (Physicochemical and technological issues of metallurgical production in Kazakhstan. Proceedings of Zh. Abishev Chemical and Metallurgical Institute). 2002, No. 1, pp. 191–197.
8. Akatov A. I., Polkovnikov A. T., Poltavskaya N. A. Industrial tests of the new gravitational magnetic circuit at the Lisakovskiy GOK processing plant. Obogashchenie Rud, 1989, No. 5, pp.10–14.
9. Tatsienko P. A. Obzhig rud i kontsentratov (Ores and concentrates roasting). Moscow, Metallurgiya, 1985, 230 p.
10. Mukhtar A. A., Bekturganov N. S., Korovushkin V. V., Verner I. A. Study of brown iron concentrates roasting products by Moessbauer spectroscopy and termomagnetic analysis methods. Obogashchenie Rud, 2011, No. 3, pp. 28–30.
11. Malyshev V. P. Matematicheskoye planirovanie khimicheskogo i metallurgicheskogo eksperimenta (Mathematical planning of chemical and metallurgical experiment). Alma-Ata, Nauka, 1977, 37 p.
12. Malyshev V. P. Veroyatnostno-determinirovannoye planirovanie eksperimenta (Probabilistic and deterministic design of experiment). Alma-Ata, Nauka, 1981, 116 p.