Skip to main content
SpringerLink
Log in

Preparation of basic magnesium carbonate and its thermal decomposition kinetics in air

  • Published:
Journal of Central South University of Technology Aims and scope Submit manuscript

Abstract

The thermal decomposition process of basic magnesium carbonate was investigated. Firstly, Basic magnesium carbonate was prepared from magnesite, and the characteristics of the product were detected by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Subsequently, the thermal decomposition process of basic magnesium carbonate in air was studied by thermogravimetry-differential thermogravimetry (TG-DTG). The results of XRD confirm that the chemical composition of basic magnesium carbonate is 4MgCO3·Mg(OH)2·4H2O. And the SEM images show that the sample is in sheet structure, with a diameter of 0.1–1 μm. The TG-DTG results demonstrate that there are two steps in the thermal decomposition process of basic magnesium carbonate. The apparent activation energies (E) were calculated by Flynn-Wall-Ozawa method. It is obtained from Coats-Redfern’s equation and Malek method that the mechanism functions of the two decomposition stages are D3 and A1.5, respectively. And then, the kinetic equations of the two steps were deduced as well.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. TU Jie, XU Wang-sheng. New technology of producing basic magnesium carbonate from dolomite by pressurized carbonation [J]. Non-Metallic Mines, 2010, 33(1): 45–48. (in Chinese)

    MathSciNet  Google Scholar 

  2. HAO Zhi-hai, DU Fang-lin. Synthesis of basic magnesium carbonate microrods with a “house of cards” surface structure using rod-like particle template [J]. Journal of Physics and Chemistry of Solids, 2009, 70(2): 401–404.

    Article  Google Scholar 

  3. LAOUTID F, GAUDON P, TAULEMESSE J M, LOPEZ CUESTA J M, VELASCO J I, PIECHACZYK A. Study of hydromagnesite and magnesium hydroxide based fire retardant systems for ethylene-vinyl acetate containing organo-modified montmorillonite [J]. Polymer Degradation and Stability, 2006, 91(12): 3074–3082.

    Article  Google Scholar 

  4. KHAN N, DOLLINORE D, ALEXANDER K, WILBURN F W. The origin of the exothermic peak in the thermal decomposition of basic magnesium carbonate [J]. Thermochimica Acia, 2001, 367/368(3): 321–333.

    Article  Google Scholar 

  5. JIN Hui-jie, LI Yan-hong, REN Bao-zeng, KONG Hai-ping, LUO Ting-liang, LIU Guo-ji. Thermal decomposition of SnSO4 in catalyst preparation [J]. Journal of Chemical Industry and Engineering, 2008, 59(4): 917–919. (in Chinese)

    Google Scholar 

  6. QU Hong-qiang, WU Wei-hong, JIAO Yun-hong, XU Jian-zhong. ZnO and metal hydroxides as flame-retardants and smoke suppressants for flexible poly (vinyl chloride) [J]. Journal of Chemical Industry and Engineering, 2006, 57(5): 1259–1263. (in Chinese)

    Google Scholar 

  7. HAO Zhi-hua, PAN Jie, DU Fang-lin. Synthesis of basic magnesium carbonate microrods with a surface of “house of cards” structure [J]. Materials Letters, 2009, 63(12): 985–988.

    Article  Google Scholar 

  8. NIU Sheng-li, HAN Kui-hua, LU Chun-mei, SUN Rong-yue. Thermogravimetric analysis of the relationship among calcium magnesium acetate, calcium acetate and magnesium acetate [J]. Applied Energy, 2010, 87(7): 2237–2242.

    Article  Google Scholar 

  9. AL-OTHMAN ASMA A, AL-FARHAN KHALID, MAHFOUZ REFAAT M. Kinetics analysis of nonisothermal decomposition of (Mg5(CO3)4(OH)2·4H2O/5Cr2O3) crystalline mixture [J]. Journal of King Saud University (Science), 2009, 21: 133–143.

    Article  Google Scholar 

  10. CONG Chang-jie, LUO Shi-ting, TAO You-tian, ZHANG Li-ke. Kinetics of thermal decomposition of ZnAc2·H2O in air atmosphere [J]. Chemical Journal of Chinese University, 2005, 26(12): 2327–2330. (in Chinese)

    Google Scholar 

  11. ZHENG Hong-xia, LIAO Xin-sheng, WANG Qi, LI Jing. TG kinetics of decomposition of magnesite power and its pellet [J]. Journal of University of Science and Technology Liaoning, 2008, 31(1): 29–31. (in Chinese)

    Google Scholar 

  12. DEMIR F, DONMEZ B, OKER H, SEVIM F. Calcination kinetic of magnesite from the thermogravimetric data [J]. Institution of Chemical Engineers, 2003, 81(3): 618–622.

    Article  Google Scholar 

  13. LU Chang-bo, SONG Wen-li, LIN Wei-gang. Kinetics of biomass catalytic pyrolysis [J]. Biotechnology Advances, 2009, 27(5): 583–587.

    Article  Google Scholar 

  14. SAMTAIN M, DOLLIMORE D, ALEXANDER K S. Comparison of dolomite decomposition kinetics with related carbonates and the effect of procedural variables on its kinetics parameters [J]. Thermochimica Acta, 2002, 392/393(15): 135–145.

    Article  Google Scholar 

  15. NING Zhi-qiang, ZHAI Yu-chun, SUN Li-qin. Study on the thermal decomposition kinetics of magnesium hydroxide [J]. Journal of Molecular Science, 2009, 25(1): 27–30. (in Chinese)

    Google Scholar 

  16. ZHENG Ying, CHEN Xiao-hua, ZHOU Ying-biao, ZHENG Chu-guang. The decomposition mechanism of CaCO3 and its kinetics parameters [J]. Journal of Huazhong University of Science and Technology: Nature Science Edition, 2002, 32(12): 86–88. (in Chinese)

    Google Scholar 

  17. ZHANG Bao-sheng, LIU Jian-zhong, ZHOU Jun-hu, FENG Zhan-guan, QIN Ke-fa. Experimental study on the impaction of particle size to limestone decomposition kinetics by thermogravimetry [J]. Proceedings of the CSEE, 2010, 30(2): 51–55. (in Chinese)

    MATH  Google Scholar 

  18. WANG Shi-jie, LU Ji-dong, ZHOU Hu, HU Zhi-juan, ZHANG Bu-ting. Kinetics model study on thermal decomposition of limestone particles [J]. Journal of Engineering Thermophysics, 2003, 24(4): 699–702. (in Chinese)

    Google Scholar 

  19. HU Rong-zu, SHI Qi-zhen. Thermal analysis kinetics [M]. Beijing: Science Press, 2001: 125. (in Chinese)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing, 100083, China

    Xin-wei Liu  (刘欣伟) & Ya-li Feng  (冯雅丽)

  2. National Key State Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China

    Xin-wei Liu  (刘欣伟) & Hao-ran Li  (李浩然)

Authors
  1. Xin-wei Liu  (刘欣伟)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ya-li Feng  (冯雅丽)
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hao-ran Li  (李浩然)
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ya-li Feng  (冯雅丽).

Additional information

Foundation item: Project(20876160) supported by the National Natural Science Foundation of China

Rights and permissions

Reprints and permissions

About this article

Cite this article

Liu, Xw., Feng, Yl. & Li, Hr. Preparation of basic magnesium carbonate and its thermal decomposition kinetics in air. J. Cent. South Univ. Technol. 18, 1865–1870 (2011). https://doi.org/10.1007/s11771-011-0915-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-011-0915-z

Key words

Search

Navigation