Research of Concentratibility of Low Quality Bauxite Raw Materials

Processing of high-silicon bauxite on the base of the traditional clinkering method is related to high power consumption and capital investments, which makes production of alumina from those ores non-competitive in terms of basic economic showings. For these reasons, development of technological solutions enabling to process bauxites with various chemical and mineralogical structures efficiently with low level of thermal power consumption is important. Flow sheet of the studies on washability of ores from the Timanskoe and the Severo-Onezhskoe deposits is on the base of the flotation method.

Authors:

• Nadezhda Nikolaeva
• Tatyana Alexandrova
• Alexandr Alexandrov

Keywords:

• Low-quality bauxite
• resource-saving technology
• optimization
• aluminum
• conditioning of composition
• separation characteristics.

References:

[1] Immobilization of Acidithiobacillus ferrooxidans and ferric iron
production. / H. Zhou, Xi. Liu, G. Qiu // Trans. Nonferrous Metals Soc.
China, 2006, 16, №4,p. 931-936.
[2] Afzal Ghauri M. Attachment of acidophilic bacteria to solid surfaces: the
significance of species and strain variations / M. Afzal Ghauri, N Okibe,
D Barrie Johson. // Hydrometallurgy, 2007, 85, № 2-4, pp. 72-80.
[3] Adhesion to metal sulfide surfaces by cells of Acidithiobacillus
ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum
ferrooxidans. / K Harneit, A. Goksel, D. Kock // Hydrometallurgy, 2006,
83, № 1-4, pp. 245-254.
[4] Pares Y. Problem of Practical Utilization. Biological Investigation of the
Phenomenon // 8 Intern. Congress on Concentration of Useful Minerals.
Leningrad, 1968.
[5] B. Csoke, Investigation of grindability of diasporic bauxites in dry,
aqueous and alkaline media as well as after high pressure crushing/ B.
Csoke, Z. Hatvani, D. Papanastassiou, K. Solymar. Int.J.Miner. Process
74S, 2004. P.123-128.
[6] G. Mucsi, Grindability characteristics of lateritic and karst bauxites/ G.
Mucsi, B. Csőke, K. Solymár, International Journal of Mineral
Processing 100, 2011. P. 96–103.
[7] Alekseeva E. A. Application of sensor based sorting for beneficiation of
low grade mineral resources / E. A. Alekseeva, V. N. Brichkin, N. V.
Nikolaeva, A. O. Romashev // SGEM GeoConference on Science and
Technologies In Geology, Exploration and Mining, SGEM 2014
GeoConference Proceedings, 2014, June 19-25. – Vol. 3. P. 823-830.
[8] King R. P. Mineral liberation in continuous milling circuits. / R. P. King,
C. L. Schneider // Proceedings XIX International Mineral Processing,
Sydney, 1993, P. 203-211.