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http://dx.doi.org/10.7844/kirr.2020.29.4.58

Synthesis of Na Compounds from Sodium Concentrated Solution Using Carbonation and Cryo-crystallization  

Lee, Seung-Woo (Mineral Resources Division, Korea Institute of Geoscience and Mineral Resources)
Chae, Soochun (Mineral Resources Division, Korea Institute of Geoscience and Mineral Resources)
Bang, Jun-Hwan (Mineral Resources Division, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Resources Recycling / v.29, no.4, 2020 , pp. 58-66 More about this Journal
Abstract
Carbonation (step I) and cryo-crystallization (crystallization at low temperature) (step II) were performed to synthesize Na compounds from sodium concentrated solution. In the step 1, the solubility and pH of carbon dioxide (95 wt.%) affecting carbonation could be changed by the variation of reaction temperature. The step II was performed at 2 ℃ after carbonation. The injection of carbon dioxide was carried out twice for the stable production and the saturated solubility of carbonate ions in solution. Firstly, we tried to inject CO2 for controlling the solubility of CO2 by changing the reaction temperature from 35 ℃ to 10 ℃, and the second injection was aimed at 10 ℃ for inducing nucleation of Na compound through carbonation after NaCl solution addition. In the cryo-crystallization step, the crystal growth of Na compounds could be induced by slowing the carbonation rate through reaction temperature change from 10 ℃ to 2 ℃. In this study, the effect on NaOH concentration was examined and the purity of Na compound was increased when 2M NaOH was used. In addition, the synthesized Na compounds were mostly rod-shaped and consisted of sodium carbonate or sodium carbonate with monohydrate.
Keywords
Na compounds; Sodium concentrated solution; Cryo-crystallization; Carbonation; Carbon dioxide;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Byong-Ho, K., 1984 : Ion-Exchange capacity of porous glasses and micro structure, Journal of the Korean Ceramic Society, 21(2), pp.181-192.
2 Do-Hwan, K., Yung-Jin, K., Hee-Jong, S., et al., 2018 : Effect o f corrosive w ater q ual ity c ontrol and c orrosion index monitoring in pilot scale pipeline simulator, Journal of Korean Society of Water and Wastewater, 32(2), pp. 183-192.   DOI
3 Sung Jin, P., Lae-Hyun, K., and Hun Yong, S., 2012 : Production of hydrogen by thermochemical transition of lauan sawdust in steam reforming gasification, Korean Chemical Engineering Research, 50(5), pp.908-912.   DOI
4 Wikipedia, sodium hydrogen carbonate, https://ko.wikipedia.org/wiki/sodium hyrogen carbonate, March 12, 2020.
5 Na-Jung, K., Gwi-Jung, H., Ha-Yun, K., et al., 2015 : Quality characteristics of soy sauce braised shiraegi with baking powder, Koren Journal of Food and Cookery Science, 31(5), pp.676-685.   DOI
6 Young-Man, L., Yeon-Ho, K., Wookeun, B., et al., 2009 : Removal effect of acid gases by reactant mixer and distributor of bag filter in dry scrubbing with $NaHCO_3$, Journal of Korean Society for Atmospheric Environment, 25(5), pp.402-409.   DOI
7 http://amenews.kr/m/view, January 7, 2020.
8 Steinhauser, G., 2008 : Cleaner production in the Solvay Process : general strategies and recent developments, Journal of Cleaner Production, 16(7), pp.833-841.   DOI
9 Choon-Ki, N., and Hyunju, P., 2014 : Recycling of waste bittern from salt farm (I): Recovery of magnesium, Applied Chemistry for Engineering, 27(4), pp.427-432.   DOI
10 Spiegler, K.S., and Laird, A.D.K., 1980 : Principles of Desalination, pp.562-622, 2nd Editon, Academic Press, New York.
11 Mirjafari, P., K. Asghari and N. Mahinpey, 2007 : Investigation the application of enzyme carbonic anhydrase for $CO_2$ sequestration purposes, Industrial & Engineering Chemistry Research, 46, pp.921-926.   DOI
12 Chiang, P.C., and Pan, S.Y., 2017 : Carbon dioxide mineralization and utilization, pp.83-89, Springer, Singapore.
13 Mullin, J.W., 2001 : Crystallization, pp.201-205. Fourth Edition, Elsevier, New York.
14 Rumble, J.R., 2020 : Handbook of Chemistry and Physics. 100th Edition, CRC Press.
15 Dodds, W.S., Stutzman, L.F., and Sollami, B.J., 1956 : Carbon dioxide solubility in water. Industrial & Engineering Chemistry Chemical & Engineering Data Series, 1(1), pp. 92-95.   DOI
16 Sadhwani, J.J., Veza, J.M., and Santana, C., 2005 : Case studies on environmental impact of seawater desalination, Desalination, 185, pp.1-8.   DOI