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http://dx.doi.org/10.7844/kirr.2017.26.1.37

Leaching of Ca, Fe and Si in Electric Arc Furnace Steel Slag by Aqueous Acetic acid Solution for Indirect Carbonation  

Youn, Ki-Byoung (Department of Nano Bio-engineering, Incheon University)
Publication Information
Resources Recycling / v.26, no.1, 2017 , pp. 37-42 More about this Journal
Abstract
It has been reported that aqueous indirect carbonation process of calcium silicate mineral could be one of the most promising methods for $CO_2$ sequestration. The process consists of two main steps, extraction of Ca from calcium silicate and carbonation of the extracted solution by $CO_2$. Many types of acids such as HCl and $HNO_3$ can be used in the extraction step of the process. In the case of using aqueous acetic acid solution as the extraction solvent, acetic acid can be reproduced at the carbonation step of the extracted solution by $CO_2$ and recycled to extraction step for reuse it. Industrial by-products such as iron and steel slags are potential raw materials of the indirect carbonation process due to their high contents of calcium silicate. In this study, in order to examine the extraction efficiency of domestic electric arc furnace steel slag by aqueous acetic acid solution, extraction experiments of the slag were performed by using the aqueous acetic acid solutions of varying extraction conditions ; acetic acid concentrations, extraction temperatures and times.
Keywords
EAF steel slag; Extraction; Acetic acid; Aqueous indirect carbonation; Calcium silicate;
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  • Reference
1 Michael H. Huesemann, 2006; Can advances in science and technology prevent global warming?, Mitigation and Adaptation Strategies for Global Change, 11, pp. 539-577.   DOI
2 Ron Zevenhoven et al., 2006; Chemical fixation of $CO_2$ in Carbonates, Catalysis Today, 115, pp. 73-79.   DOI
3 Hamdallah Bearat et al., 2006; Carbon sequestration via aqueous Olivine mineral carbonation, Environ. Sci. Technol., 40, pp. 4802-4808.   DOI
4 Wouter, J.J. Huijgen et al. 2006; Mechanisms of aqueous wollastonite carbonation as a possible $CO_2$ sequestration process, Chemical Engineering Sci., 61, pp. 4242-4251.   DOI
5 Sebastian Teir et al., 2007; Production of magnesium carbonates from serpentinite for long-term storage of $CO_2$, Int. J. Miner. Process, 85, pp. 1-15.   DOI
6 Zhong-Ying Chen et al., 2006; Chemistry of aqueous mineral carbonation for carbon sequestration and explabation of experimantal results, Environmental Progress, 25, No. 2, pp. 161-166.   DOI
7 Y. Soong et al., 2006; $CO_2$ sequestration with brine solution and fly ashes, Energy Conversion and Management, 47, pp. 1676-1685.   DOI
8 Kakizawa, M. et al., 2001; A new $CO_2$ disposal process via artificial weathering of calcium silicate accelerated by acetic acid, Energy, 26, pp. 341-354.   DOI
9 Ki-Byoung Youn, 2013; The extraction of Ca in electric arc furnace slag for $CO_2$ sequestration, J. of Korean Resources Recycling, 22, (1), pp. 64-71.
10 Sebastian Teir et al., 2007; Dissolution of steelmaking slags in acetic acid for precipitated calcium carbonate production, Energy, 32, pp. 528-539.   DOI