Browse > Article
http://dx.doi.org/10.7844/kirr.2017.26.3.53

Treatment of Black Dross with Water and NaOH Solution  

Xing, Wei Dong (Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University)
Ahn, Byung Doo (DSLiquid Co., Ltd)
Lee, Man Seung (Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.26, no.3, 2017 , pp. 53-60 More about this Journal
Abstract
Black dross contains metallic aluminium, alumina, silica, MgO, soluble salts together with minor ingredients. Control of silica in black dross is important in transforming the black dross into usable materials. First, most of the soluble salts (KCl and NaCl) in black dross were dissolved in water at reaction temperature of $50^{\circ}C$. Leaching behavior of silica, alumina, MgO and $TiO_2$ from the residue after water treatment was investigated by varying NaOH concentration and reaction temperature. Reaction temperature ($25{\sim}95^{\circ}C$) was favorable to the leaching of alumina but an optimum temperature existed for silica. MgO was not dissolved at all in the NaOH concentration range from 2 to 6 M. At the leaching condition of 5 M NaOH and reaction temperature of $95^{\circ}C$, approximately 80% of alumina and 68% of silica was dissolved.
Keywords
alumina; silica; black dross; leaching; NaOH;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Yoshimura, H. N., Abreu, A. P., Molisani, A. L., Camargo, A. C. de, Portela, J. C. S., and Narita, N. E., 2008 : Evaluation of aluminum dross waste as raw material for refractories. Ceramics International, 34(3), pp. 581-591.   DOI
2 Rattanasak, Ubolluk, and Chindaprasirt, Prinya, 2009: Influence of NaOH solution on the synthesis of fly ash geopolymer. Minerals Engineering, 22(12), pp. 1073-1078.   DOI
3 David, E. and Kopac, J., 2012 : Hydrolysis of aluminum dross material to achieve zero hazardous waste. Journal of hazardous materials, 209-210, pp. 501-509.   DOI
4 Somna, Kiatsuda, Jaturapitakkul, Chai, Kajitvichyanukul, Puangrat, and Chindaprasirt, Prinya, 2011 : NaOHactivated ground fly ash geopolymer cured at ambient temperature. Fuel, 90(6), pp. 2118-2124.   DOI
5 Li, Jinping, Gan, Jinhua, and Li, Xianwang, 2009 : Leaching of aluminum and iron from boiler slag generated from a typical Chinese Steel Plant. Journal of hazardous materials, 166(2-3), pp. 1096-1101.   DOI
6 Doucet, Frederic J., Mohamed, Sameera, Neyt, Nicole, Castleman, Barbara A., and Merwe, Elizabet M. van der, 2016 : Thermochemical processing of a South African ultrafine coal fly ash using ammonium sulphate as extracting agent for aluminium extraction. Hydrometallurgy, 166, pp. 174-184.   DOI
7 Wu, Chengyou, Yu, Hongfa, and Zhang, Hui-fang, 2012 : Extraction of aluminum by pressure acid-leaching method from coal fly ash. Transactions of Nonferrous Metals Society of China, 22(9), pp. 2282-2288.   DOI
8 Verbaan, B. and Louw, G. K. E., 1989 : A mass and energy balance model for the leaching of a pulverised fuel ash in concentrated sulphuric acid, Hydrometallurgy, 21, pp. 305-317.   DOI
9 Shemi, A., Mpana, R. N., Ndlovu, S., Dyk, L. D. van, Sibanda, V., and Seepe, L., 2012 : Alternative techniques for extracting alumina from coal fly ash. Minerals Engineering, 34, pp. 30-37.   DOI
10 Dash, B., Das, B. R., Tripathy, B. C., Bhattacharya, I. N., and Das, S. C., 2008 : Acid dissolution of alumina from waste aluminium dross. Hydrometallurgy, 92(1-2), pp. 48-53.   DOI
11 Xiao, Jin, Li, Fachuang, Zhong, Qifan, Bao, Hongguang, Wang, Bingjie, Zhang, and Jindi Huang Yanbing, 2015 : Separation of aluminum and silica from coal gangue by elevated temperature acid leaching for the preparation of alumina and SiC. Hydrometallurgy, 155, pp. 118-124.   DOI
12 Habashi, Fathi, A Textbook of Hydrometallurgy. Metallurgie Extractive Quebec: 1993.
13 Tsakiridis, P. E., P. Vest, M. Schuster, and Agatzini-Leonardou, S., 2013 : Aluminium recovery during black dross hydrothermal treatment. Journal of Environmental Chemical Engineering, 1(1-2), pp. 23-32.   DOI
14 Weng, L. and Sagoe-Crentsil, K., 2007 : Dissolution processes, hydrolysis and condensation reactions during geopolymer synthesis: Part I − Low Si/Al ratio systems. Journal of Materials Science, 42(9), pp. 2997-3006.   DOI
15 Li, Huiquan, Hui, Junbo, Wang, Chenye, Bao, Weijun, and Sun, Zhenhua, 2014 : Extraction of alumina from coal fly ash by mixed-alkaline hydrothermal method. Hydrometallurgy, 147-148, pp. 183-187.   DOI
16 Ma, Jiayu, Li, Zhibao, and Xiao, Qinggui, 2012 : A new process for $Al_2O_3$ production from low-grade diasporic bauxite based on reactive silica dissolution and stabilization in $NaOH-NaAl(OH)_4$ media. American Institute of Chemical Engineers, 58(7), pp. 2180-2191.   DOI
17 Murayama, Norihiro, Yamamoto, Hideki, and Shibata, Junji, 2002 : Mechanism of zeolite synthesis from coal fly ash by alkali hydrothermal reaction. Int. J. Miner. Process., 65, pp. 1-17.   DOI
18 Inada, Miki, Eguchi, Yukari, Enomoto, Naoya, and Hojo, Junichi, 2005: Synthesis of zeolite from coal fly ashes with different silica-alumina composition. Fuel, 84(2-3), pp. 299-304.   DOI
19 Jiang, Zhouqing, Yang, Jing, Ma, Hongwen, Wang, Le, and Ma, Xi, 2015 : Reaction behaviour of $Al_2O_3$ and $SiO_2$ in high alumina coal fly ash during alkali hydrothermal process. Transactions of Nonferrous Metals Society of China, 25(6), pp. 2065-2072.   DOI
20 Shinzato, M. C. and Hypolito, R., 2005 : Solid waste from aluminum recycling process: characterization and reuse of its economically valuable constituents. Waste Management, 25(1), pp. 37-46.   DOI
21 Scharf, Christiane and Ditze, Andre, 2015 : Recycling of black dross containing rare earths originating from melting and recycling of magnesium alloys. Hydrometallurgy, 157, pp. 140-148.   DOI
22 Hwang, J. Y., Huang, X., and Xu, Z., 2006 : Recovery of metals from aluminum dross and saltcake. Journal of Minerals & Materials Characterization & Engineering, 5(1), pp. 47-62.   DOI
23 Tsakiridis, P. E., 2012 : Aluminium salt slag characterization and utilization--a review. Journal of hazardous materials, 217-218, pp. 1-10.   DOI