Articles & Issues

Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 3, 2026
Accepted May 20, 2026
Available online June 17, 2026

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Latest issues

탄산염 광물의 진공 소성 조건으로 회수한 이산화탄소의 탄산화 반응에 관한 연구

A Study on the Carbonation Reaction of Carbon Dioxide Recovered by Vacuum Calcination Conditions of Carbonate Minerals

황대주^1† 최영훈² 정성대³ 유영환¹ 최형원¹

Dae Ju Hwang^1† Young Hoon Choi² Seong Dae Jeong³ Young Hwan Yu¹ Hyung Won Choi¹

¹한국석회석신소재연구소 ²대성 MDI ³엠투

¹Korea Institute of Limestone and Advanced Materials ²DaeSeong MDI ³M2 Inc

hdj1057@kilam.re.kr

Korean Chemical Engineering Research, August 2026, 64(3), 105170
https://doi.org/10.9713/kcer.2026.64.3.105170

Download PDF

Abstract

탄산염 광물인 1)석회석의 탈탄산화 반응을 통하여 탈탄산화 반응에서 방출하는 CO₂가스를 진공 조건인 아스피레이터(aspirator)로 보다 간단한 공정으로 회수하여, 직접 탄산화 반응을 통한 탄산칼슘을 합성하기 위해 실시하였다. 석회석의 경우, 진공 소성의 조건으로 약 650 ℃일 때 CO₂가스 0.03% vol 측정, 950 ℃일 때 최대 CO₂가스 53.48% vol 측정되었다. 그리고 진공 소성과 동시에 직접 탄산화 반응 시, CaO 1~3 wt% : CO₂1 wt%의 비율로 합성 시, CaCO₃68.3~100 wt%와 미반응 Ca(OH)₂11.7~31.7 wt%로 석회석의 경우, 500 g 진공 소성 시 218 g의 탈탄산화 반응 CO₂가스 발생으로 직접 탄산화 반응을 유도할 때의 CaO 1 wt% : CO₂1 wt% 비율이 최적 조건임을 알 수 있었다. 탄산염 광물인 2)백운석의 경우, 진공 소성의 조건으로 약 480 ℃일 때 CO₂가스 0.03% vol 측정, 850 ℃일 때 최대 CO₂ 가스 63.77% vol 측정되었다. 그리고 진공 소성과 동시에 직접 탄산화 반응 시, CaO 1~3 wt% : CO₂ 1 wt%의 비율로 합성 시, CaCO₃85.9~100 wt%의 결정상 구조와 미반응 Ca(OH)₂2~14.1 wt%로 백운석의 경우, 500 g 진공 소성 시 238 g의 탈탄산화 반응 CO₂가스 발생으로 직접 탄산화 반응을 유도할 때의 CaO 2 wt% : CO₂1 wt% 비율이 최적 조건임을 알 수 있었다.

This was carried out to synthesize calcium carbonate through a direct carbonation reaction by recovering the CO₂gas released during the de-carbonation reaction of 1) limestone, a carbonate mineral, using a vacuum aspirator in a simpler process. In the case of limestone, under vacuum calcination conditions, CO₂gas was measured at 0.03% vol at approximately 650 ℃ and a maximum CO₂gas of 53.48% vol at 950 ℃. In addition, when synthesizing with a ratio of CaO 1~3 wt% : CO₂1 wt% during vacuum calcination and direct carbonation reaction, CaCO₃68.3~100 wt% and unreacted Ca(OH)₂11.7~31.7 wt% were produced. In the case of limestone, 218 g of CO₂gas was generated during vacuum calcination of 500 g, indicating that the ratio of CaO 1 wt% : CO₂1 wt% is the optimal condition for inducing a direct carbonation reaction. In the case of 2) dolomite, a carbonate mineral, CO₂gas was measured at 0.03% vol at approximately 480 ℃ under vacuum calcination conditions, and a maximum CO₂gas of 63.77% vol was measured at 850 ℃. And when synthesizing with a ratio of CaO 1 to 3 wt% : CO₂1 wt% during vacuum calcination and direct carbonation reaction, it was found that the optimal condition is a ratio of CaO 2 wt% : CO₂1 wt% when inducing a direct carbonation reaction with 238 g of CO₂gas generated during vacuum calcination of 500 g, with a crystalline phase structure of CaCO₃85.9 to 100 wt% and unreacted Ca(OH)₂2 to 14.1 wt%.

Keywords

Limestone, Dolomite, Microwave heating, De-carbonation, Carbonation, Mg crown

References

1. Baek, H. J., Kim, D. H. and Jeong, Y. S., “Utilizing Waste Rock from Domestic Limestone Mines,” J. KSMER, 60(6), 556-565 (2023).
2. Bes, A. M., “Process Simulation of Limestone Calcination in Normal Shaft Kilns,” Ottovon- Guericke University Magdeburg, Germany, 2006 (Dr. -Ing. Thesis).
3. Hwang, D. J., Yu, Y. H. and Seok, B. T., “Synthesis of CaCO3 from Limestone using a Batch-type Microwave Kiln,” J. KSMER, 50(4), 451-469(2013).
4. Hwang, D. J., Ryu, J. Y. and Park, J. H., “Calcination of Mega-crystalline Calcite Using Microwave and Electric Furnaces,” J. Ind. Eng. Chem, 18(6), 1956-1963(2012).
5. Hwang, D. J., Ryu, J. Y. and Park, J. H., “Preparation of CaCO3 Using Mega-crystalline Calcite in Electrical Furnace and Batch Type Microwave Kiln,” J. Ind. Eng. Chem, 19(5), 1507-1516(2013).
6. Hwang, D. J., Ryu, J. Y. and Yu, Y. H., “Characteristics of Pre- cipitated Calcium Carbonate by Hydrothermal and Carbonation Processes with Mega-crystalline Calcite Using Rotary Microwave Kiln,” j. Ind. Eng. Chem, 20(5), 2727-2734(2014).
7. Hwang, D. J. and Cho, K. H., “Effects of Sodium Dodecyl Ben- zenesulfonic Acid (SDBS) on the Morphology and the Crystal Phase of CaCO3”, Korean J. Chem. Eng, 28(9), 1927-1935(2011).
8. Hwang, D. J., Yu, Y. H. and Baek, C. S., “Preparation of High Purity PCC from Medium- and Low-grade Limestone Using the Strongly Acidic Cation Exchange Resin,” J. Ind. Eng. Chem., 30, 309-321(2015).
9. Hwang, D. J. and Yu, Y. H., “A Study on Synthesis of CaCO3 & MgO/Mg(OH)2 From Dolomite Using the Strong Acidic Cation Exchange Resin,” Korea Chem. Eng. Res, 57(6), 812-825(2019).
10. Hwang, D. J. and Yu, Y. H., “A Study on Synthesis Ca and Mg Compounds from Dolomite with Salt Additional React (MgCl2‧ 6H2O),” Korea Chem. Eng. Res., 59(3), 399-409(2021).
11. Pidgeon, L. M. and King, J. A., “The Vapour Pressure of Magne- sium in the Thermal Reduction of MgO by Ferrosilicon,” Trans. Farady Soc, 4, 197-206(1948).
12. Morsi, I. M., El Barawy, K. A. and Morsi, M. B., “Silicothermic Reduction of Dolomite Ore Under Inert Atmosphere,” Canadian Metallurgical Quartely, 41, 15-28(2002).
13. Choi, H., Park, R. L. and Park, D. G., “Design Optimization of Vertical Thermal Reduction System for Magnesium Production : Part(I) Thermal Reduction Region,” Transactions of the KSME A, 10, 2502-2507(2010).
14. Choi, H., Park, R. L. and Park, D. G., “Design Optimization of Vertical Thermal Reduction System for Magnesium Production : Part(II) Condensation Region,” Transactions of the KSME A, 10, 2727-2732(2010).
15. Zhang, C., Wang, C. and Zhang, S., “Experimental and Numerical Studies on a One-Step Method for the Production of Mg in the Silicothermic Reduction Process,” Ind. Eng. Chem. Res, 54, 8883- 8892(2015).
16. Choi, H., Park, D. G. and Kim, D. S., KR patent, 10-2011-0050743
(2011).
17. Kim, M. C., Han, G. S. and Choi, G. S., KR patent, 10-2013-0051288 (2013).
18. Choi, H., Park, D. G. and Lee, J. G., KR patent, 10-2013-0075394 (2013).
19. Han, G. S. and Park, D. G., KR patent, 10-2012-0074972(2010).
20. Han, G. S. and Park, D. G., KR patent, 10-2012-0074971(2010).
21. Park, D. G., KR patent, 10-2009-0133310(2009).
22. Park, Y. Y., Hwang, K. S. and Lee, B. K., KR patent, 10-2011- 0142242(2011).
23. Eom, H. S., Park, D. G. and Han, G. S., KR patent, 10-2011-0143667
(2011).
24. Park, D. G., Choi, H. and Kim, D. S., KR patent, 10-2011-0145169
(2011).
25. Han, G. S. and Choi, G. S., KR patent 10-2012-0002771(2011).
26. Choi, G. S. and Han, G. S., KR patent 10-2012-0002768(2012).
27. Choi, G. S., Han, G. S. and Kim, M. C., KR patent 10-2012-0002758 (2012).
28. Choi, H., Park, D. G. and Han, S. H., KR patent 10-2011-0143749 (2011).
29. Park, D. G. and Kim, H. S., KR patent 10-2009-0133312(2009).
30. Cho, W. W. and Shi, S. K., KR patent 10-2012-0151285(2012).
31. Gao, F., Nie, Z. and Wang, Z., “Life Cycle Assessment of Primary Magnesium Production Using the Pidgeon Process in China,” Int J Life Cycle Assess, 14(5), 480-489(2009).
32. Ramakrishnan, S. and Koltun, P., “Global Warming Impact of the Magnesium Produced in China Using the Pidgeon Process,” Resources, Conserv. Recycl, 42, 49-64(2004).
33. Gao, F., Nie, Z. and Wang, Z., “Life Cycle Assessment of Primary Magnesium Production Using the Pidgeon Process in China”, Int. J. Life. Cycle. Assess, 14(5), 480-489(2009).
34. Francesco, C., Marco, R. and Sergio, U., “LCA of Magnesium Production: Technological Overview and Worldwide Estimation of Environmental Burdens,” Resources, Conserv. Recycl, 52, 1093- 1100(2008).
35. Hwang, D. J. and Yu, Y. H., “A Study on the Characteristics of Manufactured Mg Crown on the Calcining Conditions of Dolo-mite,” Koea Chem. Eng. Res., 59(4), 611-625(2021).
36. Hwang, D. J., Yu, Y. H. and Choi, H. Y., KR patent 10-2790933
(2025).