Issue

Vol. 26 No. 2 (2014): Vol 26 Issue 2

Copyright (c) 2014 AJC

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Reaction Kinetics of Fly Ash in Al2O3-NaOH Solution Systems

https://doi.org/10.14233/ajchem.2014.15378
T. Cheng1
1Department of City Science, Jiangsu City Vocational College, Nanjing 210036, P.R. China 2School of Biology and Chemical Engineering, Jiangsu University of Science and technology, Zhenjiang 212018, P.R. China *Corresponding author: Fax: +86 25 86496516; Tel: +86 25 86496580; E-mail: wnchengting@sina.com
C. Chen2
1Department of City Science, Jiangsu City Vocational College, Nanjing 210036, P.R. China 2School of Biology and Chemical Engineering, Jiangsu University of Science and technology, Zhenjiang 212018, P.R. China *Corresponding author: Fax: +86 25 86496516; Tel: +86 25 86496580; E-mail: wnchengting@sina.com
W.F. Xie1
1Department of City Science, Jiangsu City Vocational College, Nanjing 210036, P.R. China 2School of Biology and Chemical Engineering, Jiangsu University of Science and technology, Zhenjiang 212018, P.R. China *Corresponding author: Fax: +86 25 86496516; Tel: +86 25 86496580; E-mail: wnchengting@sina.com

Asian Journal of Chemistry, Vol. 26 No. 2 (2014): Vol 26 Issue 2

Abstract

Reaction kinetics of fly ash in Al2O3-NaOH solution system were analyzed by a modified “Jander” equation. After kinetics analysis, only two reaction stages could be found during the reaction process. Stage 1, the reaction process was limited by diffusion through a porous layer. Stage 2, the reaction process was controlled by diffusion through a dense layer. The rate constants of stage 2 were in the order of 7.5 M NaOH (0.00609), Al2O3/Na2O = 0 > 7.5 M NaOH, Al2O3/ Na2O = 0.0066 > (0.00404) > 7.5 M NaOH, Al2O3/Na2O = 0.013 (0.00301) > 7.5 M NaOH, Al2O3/Na2O = 0.033 (0.00128).

Keywords

Fly ash Kinetics Alkaline solution.
Cheng1, T., Chen2, C., & Xie1, W. (2014). Reaction Kinetics of Fly Ash in Al2O3-NaOH Solution Systems. Asian Journal of Chemistry, 26(2), 342–344. https://doi.org/10.14233/ajchem.2014.15378
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. P.B. Woodbury, G. Rubin, D.C. McCune, L.H. Weinstein and E. Neuhauser, Water, Air Soil, 111, 271 (1999); doi:10.1023/A:1005008411336.
  2. R.L. Davison, D.F.S. Natusch, J.R. Wallace and C.A. Evans, Environ. Sci. Technol., 8, 1107 (1974); doi:10.1021/es60098a003.
  3. T.L. Theis, J.D. Westrick, C.L. Hsu and J.J. Marley, J. Water Pollut. Control Fed., 50, 2457 (1978).
  4. P. Chindaprasirt, C. Jaturapitakkul, W. Chalee and U. Rattanasak, Waste Manage., 29, 539 (2009); doi:10.1016/j.wasman.2008.06.023.
  5. U. Rattanasak and P. Chindaprasirt, Miner. Eng., 22, 1073 (2009); doi:10.1016/j.mineng.2009.03.022.
  6. R. Slavik, V. Bednarik, M. Vondruska and A. Nemec, J. Mater. Process. Technol., 200, 265 (2008); doi:10.1016/j.jmatprotec.2007.09.008.
  7. A. Allahverdi and F. Škvára, Ceramic-Silikaty, 49, 225 (2005).
  8. J.L. Provis and J.S.J. Van Deventer, Chem. Eng. Sci., 62, 2318 (2007); doi:10.1016/j.ces.2007.01.028.
  9. 13. A. Fernandez-Jimenez, A.G. De la Torre, A. Palomo, G. Lopez-Olmo, M.M. Alonso and M.A.G. Aranda, Fuel, 85, 1960 (2006); doi:10.1016/j.fuel.2006.04.006.
  10. 14. W. Jander, Z. Anorg. Allg. Chem., 163, 1 (1927); doi:10.1002/zaac.19271630102.
  11. 15. R. Kondo, K. Lee and M. Diamond, J. Ceram. Soc. Jpn., 84, 573 (1976).
Read More
Author biographies is not available.
Download
PDF
Statistic
Read Counter : 0 Download : 0