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Surface pretreatment using a hot alkaline solution was carried out to improve the effect of desulfurization and desilication on low-grade bauxite with high sulfur content. The results demonstrated that, after surface pretreatment, a maximum grade and recovery of 66.17% and 87.27%, respectively, were achieved, and the sulfur content and ratio of A/S were 0.19% and 7.09, respectively. The surface pretreatment mechanism was further analysed by XRD and SEM analyses. The improved results of desulfurization and desilication were attributed to the selective corrosion of aluminosilicate minerals in coarse particles, reducing the active silicon sites on the surface of coarse particles as well as enhancing the cation exchange between the collector and aluminosilicate minerals.
Słowa kluczowe
Rocznik
Tom
Strony
940--950
Opis fizyczny
Bibliogr. 21 poz., rys., tab.
Twórcy
autor
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
- Pingdingshan Huaxing Flotation Engineering Technology Co., Ltd., Pingdingshan 467000, China
autor
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
- Hubei Province Key Laboratory of Processing of Mineral Resources and Environment, Wuhan 430070, China
autor
- School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
autor
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Bibliografia
- CHEN S., Li X., Xia W.C., et al. 2017. Optimization of grinding pretreatment for effective flotation of oxidized coal [J]. Energy Sources, 39(8): 794-799.
- Çınar M., 2009. Floatability and desulfurization of a low-rank (Turkish) coal by low-temperature heat treatment [J]. Fuel. Process. Technol. 90(10), 1300-1304.
- ERSOY Ö.F., TURGUT H., Güven O., et al, 2013. Effect of heat treatment on the flotation of Turkish lignites in brine solution[C]//. Materials Science and Technology. 10, 2044-2052.
- FAN X., ROWSON N. A., 2000. Fundamental Investigation of Microwave Pretreatment on the Flotation of Massive Ilmenite Ores. Developments in Chemical Engineering & Mineral Processing. 8(1-2), 167–182.
- GAO S., LIX., WEI D., 2008. Beneficiation of low-grade diasporic bauxite with hydrocyclone [J]. Transactions of Nonferrous Metals Society of China, 18(2): 444-448.
- HU Y, CHEN P, SUNW., 2012. Study on quantitative structure–activity relationship of quaternary ammonium salt collectors for bauxite reverse flotation. Minerals Engineering, 26:24-33.
- KURSUN H., 2014. A study on the utilization of ultrasonic pretreatment in zinc flotation. Separation Science & Technology, 49(18), 2975-2980.
- LIU G, ZHONG H, HU Y, et al. 2007. The role of cationic polyacrylamide in the reverse flotation of diasporic bauxite [J]. Minerals Engineering, 20(13):1191-1199.
- Lu, Y. P., Zhang G. F., Feng, Q. M., et al. 2002. A novel collector RL for flotation of bauxite [J]. Journal of central South University, 2002, 9(1):21-24.
- MASSOLA C. P., Chaves A. P., Lima J. R. B., et al. 2009. Separation of silica from bauxite via froth flotation [J]. Minerals Engineering, 22(4):315-318.
- PARASKEVAS D., VOORDE A.V.D., KELLENS K., et al. 2016. Current Status, Future Expectations and Mitigation Potential Scenarios for China's Primary Aluminium Industry[C]// Procedia CIRP, 295-300.
- SONG S., LOPEZ V.A., Lu S., et al. 2002. Selective dispersion in a diaspore–rutile suspension by sodium fluorosilicate [J]. Powder Technology, 123(2–3):178-184.
- SU, X.J., MO, W., MA, S.J., YANG, J.L., LIN, M.Q., 2010. Experimental Study on Microwave Pretreatment with Some Refractory Flotation Gold Concentrate [J]. Advanced Materials Research, 158:71-75.
- TOMINAGA H., 2009. Application of Pressurized Flotation for Waste Water Treatment and Optimum Closed System for Mashery Use. Resource Processing. 27(2), 91-102.
- WANG, Y., Hu, Y., He, P., et al. 2004. Reverse flotation for removal of silicates from diasporic-bauxite. Minerals Engineering, 17(1), 63-68.
- WANG X.,ZHANGT A., 2011. Flotation Desulfurization of High-Sulfur Bauxite with Ethyl Thio Carbamate as Collector. Advanced Materials Research,, 239-242:1515-1519.
- XIA W., YANF J., 2013. Enhancement in Flotation of Oxidized Coal by Oxidized Diesel Oil and Grinding Pretreatment [J]. Coal Preparation, 33(6):257-265.
- XIA W., YANG J., Liang C., 2013, A short review of improvement in flotation of low rank/oxidized coals by pretreatments [J]. Powder Technology, 237:1-8.
- YU, S. X., SUN, W., WANG, Y. L., ZHANG, P., 2002. Recycling uses of wastewater from flotation of phosphate ores by electrochemical treatment. Industrial Water Treatment. 22(2), 12-14.
- ZHENG, C. L., ZHANG, H. J., RU, Y., XU, M., 2018. Effects of magnetic pretreatment on diesel oil properties and its relationship to low rank coal flotation. Separation Science & Technology. 53(3), 527-534.
- ZHANG, X. R., LIU, Z. H., LI, W. S.,CHENG,Y. Y., DU, J.,TAO, C.Y., 2016. Alkaline pretreatment for chlorine removal from high-chlorine rhodochrosite [J]. International Journal of Minerals, Metallurgy and Materials. 23(11),1252-1257.
- CELEP, O., Alp, İ., Paktunç, D.,Thibault, Y., 2011. Implementation of sodium hydroxide pretreatment for refractory antimonial goldand silver ores. Hydrometallurgy,108 (6),109–114.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f74384c3-d41e-4e08-90e6-ae32e405b80c