Abstract
The flotation behaviors of diaspore and three kinds of silicate minerals — kaolinite, illite and pyrophyllite — using an organosilicon cationic surfactant as collector were investigated as functions of reagent concentration and pulp pH. The results show that the organosilicon cationic collector QAS122 is a suitable collector for the flotation of aluminosilicate minerals but has weak collecting ability with regard to diaspore, enabling the flotation separation of diaspore from silicate minerals using QAS122 as collector. The flotation of a bauxite ore was then studied in detail. Finally, a reverse flotation separation process was used to process a low-grade bauxite ore. It was concluded that use of the organosilicon cationic collector is effective. A concentrate with aluminum oxide (Al2O3) to silicon dioxide (SiO2) mass ratio, or A/S, of 9.67 was obtained from natural bauxite ore with A/S of 6.07 at pH of around 11. The Al2O3 recovery rate was 81.72 percent.
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Cao, X., Hu, Y., and Xu, J., 2004, “Synthesis of γ-alkoxy-propylamines and their collecting properties on aluminosilicate mineral,” J. Cent. South. Univ. T, Vol. 11, No. 3, pp. 280–286.
Du, P., Cao, X., Hu, Y., Jiang, Y., and Li, H., 2003, “Study of structure and property of amine collectors,” Light Metal, Vol. 1, pp. 27–31 (in Chinese).
Guan, F., Zhong, H., and Liu, G., 2009, “Flotation of aluminosilicate minerals using alkylguanidine collectors,” Trans. Nonferrous Met. Soc. China, Vol. 19, No. 1, pp. 228–234.
Hu, Y., 2003, “Progress in flotation de-silica,” Trans. Nonferrous Met. Soc. China, Vol. 13, No. 3, pp. 656–662.
Hu, Y., Jiang, H., and Wang, D., 2003, “Electrokinetic behavior and flotation of kaolinite in CTAB solution,” Miner. Eng., Vol. 16, No. 11, pp. 1221–1223.
Liu, C., Hu, Y., and Cao, X., 2009, “Substituent effects in kaolinite flotation using dodecyl tertiary amines,” Miner. Eng., Vol. 22, No. 9–10, pp. 849–852.
Liu, G., Zhong, H., Hu, Y., Zhao, S., and Xia, J., 2007, “The role of cationic polyacrylamide in the reverse flotation of diasporic bauxite,” Miner. Eng., Vol. 20, No. 13, pp. 1191–1199.
Liu, G., Zhong, H., Lu, Y., and Feng, Q., 2003, “Reverse flotation separation on diaspore and kaolinite in the presence of cationic polyacrylamide polymers,” Trans. Nonferrous Met. Soc. China, Vol. 13, No. 5, pp. 1231–1234.
Luo, Z., Hu, Y., Wang, Y., and Qiu, G., 2001, “Mechanism of dispersion and aggregation in reverse flotation for bauxite,” The Chinese Journal of Nonferrous Metals, Vol. 11, No. 4, pp. 680–683 (in Chinese).
Ma, C., Tian, X., Liu, R., and Yang, X., 1996, “Selection of Bayer digestion technology and equipment for Chinese bauxite,” Light Metals: Proceedings of TMS Annual Meeting, TMS, pp. 187–191.
Papanastassiou, D., Csoke, B., and Solymar, K., 2002, “Improved preparation of the Greek diasporic bauxite for Bayer-process,” Light Metals: Proceedings of TMS Annual Meeting, TMS, pp. 67–74.
Wang, Y., Hu, Y., and Gu, G., 2004, “Reverse flotation for removal of silicates from diasporic-bauxite,” Miner. Eng., Vol. 17, No. 1, pp. 63–68.
Xia, L., Zhong, H., and Liu, G., 2009, “Flotation separation of the aluminosilicates from diaspore by a Gemini cationic collector,” Int. J. Miner. Process., Vol. 92, No. 1–2, pp. 74–83.
Xia, L., Zhong, H., and Liu, G., 2010, “Flotation techniques for separation of diaspore from bauxite using Gemini collector and starch depressant,” Trans. Nonferrous Met. Soc. China, Vol. 20, No. 3, pp. 495–501.
Xu, Z., Plitt, V., and Liu, Q., 2004, “Recent advances in reverse flotation of diasporic ores—A Chinese experience,” Miner. Eng., Vol. 17, No. 9, pp. 1007–1015.
Zhao, S., Wang, D., Hu, Y., and Xu, J., 2003a, “Flotation of aluminosilicates using N-(2-aminoethyl)-1-naphthaleneacetamide,” Miner. Eng., Vol. 16, No. 10, pp. 1031–1033.
Zhao, S., Wang, D., Hu, Y., and Xu, J., 2003b, “The flotation behaviour of N-(3-aminopropyl)-dodecanamide on three aluminosilicates,” Miner. Eng., Vol. 16, No. 12, pp. 1391–1395.
Zhao, S., Wang, D., Hu, Y., and Xu, J., 2003c, “Flotation of aluminosilicates using N-(3-aminopropyl)-dodecanamide,” Chinese Journal of Nonferrous Metals, Vol. 13, No. 5, pp. 1273–1277 (in Chinese).
Zhao, S., Zhong, H., and Liu, G., 2007, “Effect of quaternary ammonium salts on flotation behavior of aluminosilicate minerals,” J. Cent. South. Univ. T, Vol. 14, No. 4, pp. 500–503.
Zong, H., Liu, G., Xia, J., Lu, Y., Hu, Y., Zhao, S., and Yu, X., 2008, “Flotation separation of diaspore from kaolinite, pyrophyllite and illite using three cationic collectors,” Miner. Eng., Vol. 21, No. 12–14, pp. 1055–1061.
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Paper number MMP-14-087.
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Yu, X.Y., Wei, X.A., Zeng, A. et al. Flotation of a low-grade bauxite ore using an organosilicon cationic collector. Mining, Metallurgy & Exploration 32, 209–214 (2015). https://doi.org/10.1007/BF03402477
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DOI: https://doi.org/10.1007/BF03402477