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Volume 30 Issue 4
Dec.  2011
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Article Navigation >  CARSOLOGICA SINICA  > 2011  >  30(4): 472-478
Gao Xiong, Meng Ye, Zhu Chen, Zhao Liang. Study on the kinetics of extracting chrysotile with ammonium chloride[J]. CARSOLOGICA SINICA, 2011, 30(4): 472-478. doi: 10.3969/j.issn.1001-4810.2011.04.020
Citation: Gao Xiong, Meng Ye, Zhu Chen, Zhao Liang. Study on the kinetics of extracting chrysotile with ammonium chloride[J]. CARSOLOGICA SINICA, 2011, 30(4): 472-478. doi: 10.3969/j.issn.1001-4810.2011.04.020
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Study on the kinetics of extracting chrysotile with ammonium chloride

doi: 10.3969/j.issn.1001-4810.2011.04.020

  • Institute of Surficial Geochemistry, School of Earth Sciences and Engineering, Nanjing University

  • Received Date: 2011-10-14
  • Publish Date: 2011-12-25
    Abstract
  • Low mineral dissolution rate and the unrecyclable use of additives are two puzzles development of CO2 sequestration by mineral carbonation. This paper presents a new process of CO2 sequestration by mineral carbonation, which adopts NH4Cl solution as leaching agent, and study the reaction kinetics of chrysotile in NH4Cl solution in a systematic way. The results show that dissolution process is in conformity with the Elovich model and leaching process is usually finished in 1 hour. The leaching rate of magnesium can reach 12.67% when the concentration of NH4Cl is 5mol/L and the reacting temperature is 100℃. And the leaching rate rise with temperature, meanwhile, neither does the ammonium chloride concentration nor the solid/liquid ratio have much influence on it. The activation energy of dissolution process is determined to be 129.56kJ/mol in the test.

     

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    • References(19)
  • [1]
    Teir S, Revitzer H, Eloneva S, et al, Dissolution of natural serpentinite in mineral and organic acids［J］. International Journal of Mineral Processing, 2007, 83(1-2): 36-46.
    [2]
    Teir S, Kuusik R, Fogelhohn C J, et al. Production of magnesium carbonates from serpentinite for long-term storage of CO2［J］. International Journal of Mineral Processing, 2007, 85(1-3): 1-15.
    [3]
    O'Connor W K, Dahlin D C, Rush G E, et al. Carbon dioxide sequestration by direct mineral carbonation: process mineralogy of feed and products［J］. Minerals & Metallurgical Processing, 2002, 19(2): 95-101.
    [4]
    Zhao L, Sang L Q, Chen J, et al. Aqueous Carbonation of Natural Brucite: Relevance to CO2 Sequestration［J］. Environmental Science & Technology, 2010, 44(1): 406-411.
    [5]
    Park A H A, Fan L S. CO2 mineral sequestration: physically activated dissolution of serpentine and pH swing process［J］. Chemical Engineering Science, 2004, 59(22-23): 5241-5247.
    [6]
    Kodama S, Nishimoto T, Yamamoto N, et al. Development of a new pH-swing CO2 mineralization process with a recyclable reaction solution［J］. Energy, 2008, 33(5):776-784.
    [7]
    Wang X, Maroto-Valer M M. Dissolution of serpentine using recyclable ammonium salts for CO2 mineral carbonation［J］. Fuel Processing Technology, 2010.
    [8]
    Yang H Q, Xu Z H, Fan M H, et al. Progress in carbon dioxide separation and capture: A review［J］. Journal of Environmental Sciences-China, 2008, 20(1): 14-27.
    [9]
    Mathieu P. The IPCC special report on carbon dioxide capture and storage［J］. ECOS 2006: Proceedings of the 19th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Vols 1-3, 2006: 1611-1617.
    [10]
    Sohn H, Wadsworth M. Rate Processes of Extractive Metallurgy［M］. Plenum Press, 1979, New York. 465.
    [11]
    Davis JA, Kent D B. Surface Complexation Modeling in Aqueous Geochemistry［J］. Reviews in Mineralogy, 1990, 23: 177-260.
    [12]
    Ju S H, Tang M T, Yang S H, et al. Dissolution kinetics of smithsonite ore in ammonium chloride solution［J］. Hydrometallurgy, 2005, 80(1-2): 67-74.
    [13]
    Meng X, Han K. The principles and applications of ammonia leaching of metals—a review［J］. Mineral Processing and Extractive Metallurgy Reviews, 1996, 16 (1): 23–61.
    [14]
    Demirkiran N, Kunkul A. Dissolution Kinetics of Ulexite Prepared under Different Calcination Temperatures［J］. Brazilian Journal of Chemical Engineering, 2008, 25(4): 751-758.
    [15]
    朱辰,高雄,赵良.基于二氧化碳封存的水镁石反应动力学研究［J］.第四纪研究,2011:31.
    [16]
    Ding Z Y, Yin Z L, Hu H P, et al. Dissolution kinetics of zinc silicate (hemimorphite) in ammoniacal solution［J］. Hydrometallurgy, 2010, 104(2): 201-206.
    [17]
    李作骏, 多相催化反应动力学基础［M］. 北京大学出版社, 1990.
    [18]
    李作骏,多相催化反应动力学基础［M］.北京大学出版社,1990.
    [19]
    黄芳,王华,李军旗,等.高镁磷尾矿中磷和镁在硫酸中的溶解动力学［N］.过程工程学报,2009:1121-1126.
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