Thermodynamics and Kinetics Analysis on Carbothermic Reduction of Calcined Magnesite in Vacuum

• Autorzy: Tang Qifeng , Ao Jinqing , Peng Biyou , Guo Biao , Yang Tao

Identyfikatory

DOI

10.24425/amm.2022.139696

• Języki publikacji: EN

Abstrakty

EN

The carbothermic reduction of calcined magnesite in vacuum was studied. By thermodynamic analysis, the starting temperature of reduction reaction dropped from 2173 K to 1523 K when system pressure dropped from 1 atmosphere to 100 Pa. The experiments were carried out at different conditions under 10~100 Pa and the experimental results shown that the reduction extent of MgO improved by increasing the reaction temperature and time, the pellet forming pressure as well as adding fluoride as catalyst. The rate-determining step of carbothermic reduction process was gas diffusion with the apparent activation energy of 241.19~278.56 kJ/mol.

Słowa kluczowe

EN

calcined magnesite; carbothermic reduction; vacuum; thermodynamics; kinetics

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2022
• Tom: Vol. 67, iss. 3
• Strony: 1021--1026
• Opis fizyczny: Bibliogr. 26 poz., fot., rys., tab., wykr., wzory

Twórcy

autor

Tang Qifeng

• Xihua University, College of Materials Science and Engineering, Chengdu 610039, PR China

• https://orcid.org/0000-0002-2845-3816

autor

Ao Jinqing

• Xihua University, College of Materials Science and Engineering, Chengdu 610039, PR China

• https://orcid.org/0000-0002-2229-8640

autor

Peng Biyou

• Xihua University, College of Materials Science and Engineering, Chengdu 610039, PR China

• https://orcid.org/0000-0002-7018-2642

autor

Guo Biao

• Xihua University, College of Materials Science and Engineering, Chengdu 610039, PR China

• https://orcid.org/0000-0002-2261-2054

autor

Yang Tao

• Xihua University, College of Materials Science and Engineering, Chengdu 610039, PR China

• https://orcid.org/0000-0002-1277-2708

Bibliografia

• [1] B.L. Mordike, T. Ebert, Mater. Sci. Eng. A 302, 37 (2001).
• [2] D. Eliezer, E. Aghion, F.H. Froes, Adv. Perform. Mater. 5, 201 (1998).
• [3] H. Friedrich, S. Schumann, J. Mate. Proces. Tech. 117, 276 (2001).
• [4] S. Ramakrishnan, P. Koltun, Resour. Conservat. Recycl. 42, 49(2004).
• [5] F. Gao, Z.R. Nie, Z.H. Wang, et al., Int. J. Life Cycle Assess. 14, 480 (2009).
• [6] W.Y. Liang, X.L. Sun, F.S. Li, et al., China Nonferrous Metallurgy 4, 36 (2020).
• [7] F. D’Errico, G. Perricone, R. Oppio, JOM 61, 14 (2009).
• [8] D. Minic, D. Manasijevic, J. Dokic, et al., J. Therm. Anal. Calorim. 93, 411 (2008).
• [9] G. Brooks, S. Trang, P. Witt, et al., JOM 58, 51 (2006).
• [10] Y. Takeshi, M. Kazuki. Mater. Trans. 44, 722 (2003).
• [11] I. Vishnevetsky, M. Epstein, Solar Energy 111, 236 (2015).
• [12] R. Winand, M.V. Gysel, A. Fontana, et al., Trans. Inst. Min. Metall. C 99, 105 (1990).
• [13] Z.H. Li, H.S. Xiang, Y.N. Dai, Energy for Metallurgical Industry 23, 20 (2004).
• [14] R.T. Li, W. Pan, S. Masamichi Sano, et al., Thermochim. Acta 398, 265 (2003).
• [15] Y. Tian, T. Qu, B. Yang, et al., Metall. Mater. Trans. B 43, 657(2012).
• [16] N. Yoshikawa, E. Ishizuka, K. Mashiko, et al., Mater. Lett. 61, 2096 (2006).
• [17] Q.F. Tang, J.C. Gao, X.H. Chen, et al., Mater. Rev. 28, 64 (2016).
• [18] Y. Tian, T. Qu, B. Yang, et al., Metal. Mater. Trans. B 43, 657 (2012).
• [19] Y. Jiang, Y.Q. Liu, H.W. Ma, et al., Metal. Mater. Trans. B 47 873 (2016).
• [20] W. Gruner, S. Stolle, L.M. Berger, et al., Int. J. Refractory Met. Hard Mater. 17, 227 (1999).
• [21] V.L. Boris, L.U. Valery, Thermochim. Acta 401, 139 (2002).
• [22] A. Sondhi, C. Morandi, R.F. Reidy, Ceram. Int. 39, 4489 (2012).
• [23] E. Busenberg, L.N. Plummer, Am. J. Sci. 282, 45 (1982).
• [24] M.C. Abraham, A. Ghosh, Ironmak. Steelmak. 6, 14 (1979).
• [25] R.T. Li, W. Pan, S. Masamichi, et al., Thermochim. Acta 395, 145 (2002).
• [26] W.D. Xie, J. Chen, H. Wang, et al., Rare Met. 35, 192 (2016).

Uwagi

1. This work was financially supported by Key Scientific Research Fund of Xihua University (Grant No. Z1320109) and Sichuan Province Department of Science and Technology Fund for Nature (Grant No. 19ZDYF2931(2019YFG70511))

2. Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).