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BENEFICIATION TECHNOLOGY
Название Development of a concentrate production technology with a view to produce alumina from high-silica nepheline raw material
DOI 10.17580/or.2016.03.04
Автор Mukhina Т. N., Marchevskaya V. V., Vinogradov S. A., Golubtsov A. V.
Информация об авторе

Mining Institute of the Kola Science Centre of the RAS (Russia):

Mukhina T. N., Ph. D. in Engineering Sciences, Head of Section, muhina@goi.kolasc.net.ru;
Marchevskaya V. V., Ph. D. in Engineering Sciences, Associate Professor, Senior Researcher, vvm@goi.kolasc.net.ru

Golubtsov A. V., Leading Technologist

 

Engineering and Technology Direction of the Alumina Production of the «RUSAL ITTs» Separate Division in St. Petersburg (Russia):
Vinogradov S. A., Ph. D. in Engineering Sciences, Senior Researcher, Sergey.Vinogradov2@rusal.com

Реферат

When nepheline raw material is subjected to complex processing, and all products are efficiently used, alumina, produced from nephelines, may be competitive in cost with respect to alumina, produced from bauxites. In Russia, there are two operating integrated plants producing alumina from nepheline raw material — the Pikalevsky and Achinsky plants. The prospects for development of the Achinsky alumina plant’s raw material base are related to the Goryachegorskoye nepheline-feldspar ores deposit. The work presents the results of the Goryachegorskoye deposit ores dressability studies with a view to develop a marketable nepheline concentrate production technology. Nepheline ores flotation and magnetic processing flow sheets are developed separately for two ore varieties: feldspar ijolites and ijolite-urtites, and for their blending in accordance with the reserves in the ore body. Magnetic processing flow sheet includes ore grinding, its preliminary desliming, magnetic separation in weak field and two operations of magnetic separation in strong field. Flotation processing flow sheet includes one operation of deslimed ore flotation — reverse nepheline flotation. It was established that all studied technologies permit to produce from high-silica nepheline-feldspar ores concentrates, containing over 26.5 % Al2O3, within 45 % SiO2, within 3 % of total iron with Al2O3 recovery being over 80 %, that are suitable for alumina production. The highest processing results are achieved with application of combined magnetic-flotation technology, however, the final choice of technology may be done upon accomplishment of design studies and technical and economic assessment.

The work was performed with the aid from the Ministry of Education and Science of the Russian Federation, the Government Agreement No. 14.579.21.0129. UIPNI RFMEF157915X0129.

Ключевые слова Alumina, nepheline rocks, slimes, dressability, magnetic separation, flotation, nepheline concentrate, magnetic-flotation technology
Библиографический список

1. Mirovoy rynok alyuminiya (World aluminium market). [Electronic resource]. URL: http://www.aluminiumleader.ru/economics (accessed 18.05.2016).
2. Harben P. W. World distribution of industrial mineral deposits. The Industrial Minerals Handbook, London, 1995, 306 pp.
3. Karlsen T. A. Nordic minerals review – Norway. Industrial Minerals, 1998, No. 374, pp. 76–81.
4. Taylor G. H. Nepheline syenite. American Ceramic Society Bulletin, 1990, Vol. 69, No. 5, pp. 872–873.
5. Ibrahim S. S., Mohamed H. A., Boulos T. R. Dry magnetic separation of nepheline syenite ores. Physicochemical Problems of Mineral Processing, 2002, Vol. 36, pp. 173–183.
6. Abdel-Zaher M. Abouzeid, Abdel-Tawab A. Negm. Characterization and beneficiation of an Egyptian nepheline syenite ore. International Journal of Mineralogy, 2014, Vol. 2014, 9 pp.
7. Alyuminiyevaya promyshlennost' Rossii (Russian aluminum industry). [Electronic resource]. URL: http://newsruss.ru (accessed 18.05.2016).
8. Smirnov M. N., Sizyakov V. M. Combined processing of nepheline ores for alumina, soda potash and cement production. Nefelinovoye syrye (Nepheline raw materials). Moscow, Nauka, 1978, pp. 163–167.
9. Dantsig S. Ya., Andreeva E. D., Pivovarov V. V. at al. Nefelinovyye porody — kompleksnoye alyuminiyevoye syrye (Nepheline rocks — complex aluminium raw material). Moscow, Nedra, 1988, 190 pp.
10. Metodicheskiye rekomendatsii po primeneniyu Klassifikatsii zapasov mestorozhdeniy i prognoznykh resursov tverdykh poleznykh iskopayemykh. Alyuminievyye rudy (Methodical recommendations on the application of Classification of solid minerals ore reserves and inferred resources. Aluminum ores). Moscow, The State Commission on Reserves, 2007, 36 pp.
11. Ermakov A. V., Marchenko A. A. Perspectives of the JSC «RUSAL ACHINSK ALUMINA REFINERY» raw material base development. Sbornik dokladov III Mezhdunarodnogo Kongressa «Tsvetnye metally — 2011» (Proceedings of the III International Congress «Non-ferrous metals — 2011»), Krasnoyarsk, 7–9 Sept., 2011. Krasnoyarsk, 2011, pp. 92–94.
12. Shepelev I. I., Dashkevich R. Ya., Golovnykh N. V. et al. Involvement of non-conditioned nepheline raw material into processing with applying alumina-containing additions. Ibidem, pp. 88–91.
13. Serdyuk S. S. Mineral raw material base of non-ferrous, precious and rare metals at the Central Siberia and development priorities. Sbornik dokladov VI Mezhdunarodnogo Kongressa «Tsvetnye metally i mineraly — 2014» (Proceedings of the VI International Congress «Non-ferrous metals and minerals — 2014»), Krasnoyarsk, 15–18 Sept., 2014. Krasnoyarsk, 2014, pp. 16–32.
14. Suslikov G. F., Potapenko V. E. Depressing action of silicofluoric sodium in nepheline ore flotation. Obogashchenie Rud = Mineral Processing, 1966, No. 3, pp.15–19.

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