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Tytuł artykułu

Leaching kinetics of ulexite in oxalic acid

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Leaching of ulexite in oxalic acid, which is an organic acid, was studied. The parameters were solid-to-liquid ratio, acid concentration, stirring speed and temperature. The experimental data were applied to the homogeneous and heterogeneous kinetic models to determine the best one. The results showed that the leaching rate increases with increasing reaction temperature, stirring speed, acid concentration, but decreases with solid-to-liquid ratio and particle size. The leaching kinetics of ulexite was determined as the product layer model. The activation energy of the process was calculated.
Rocznik
Tom
Strony
139--148
Opis fizyczny
Bibliogr. 21 poz.
Twórcy
autor
autor
autor
  • Celal Bayar University, Department of Chemistry, 45040 Manisa, Turkey
Bibliografia
  • 1. ABALI, Y., BAYCA, S. U., MISTINCIK, E. (2006). Kinetics of oxalic acid leaching of tincal, Chemical Engineering Journal, 123, 25–30.
  • 2. ABALI, Y., BAYCA, S. U., GULER, A. E. (2007). The dissolution kinetics of tincal in phosphoric acid solutions, International Journal of Chemical Reactor Engineering, 5, 1–10.
  • 3. ALKAN, M., DOGAN, M. (2004a). Dissolution kinetics of colemanite in oxalic acid olutions, Chemical Engineering and Processing, 43, 867–872.
  • 4. ALKAN, M, DOGAN M, NAMLI, H. (2004b). Dissolution kinetics and mechanism of lexite in oxalic acid solutions, Ind. Eng. Chem. Res., 43, 1591–1598.
  • 5. BAYCA, S. U. (2009). Effects of the addition of ulexite to the sintering behavior of a ceramic body, Journal of Ceramic Processing Research, 10, 162–166.
  • 6. BROTHERTON, R. J. (1995). Encyclopedia of Inorganic Chemistry, Wiley, New York, USA.
  • 7. CAVUS, F., KUSLU, S. (2005). Dissolution kinetics of colemanite in citric acid solutions assisted by mechanical agitation and microwaves, Ind. Eng. Chem. Res., 44, 8164–8170.
  • 8. DEMIRBAS, A.¸ H., YUKSEK, I., CAKMAK, M., M., KUCUK, CENGIZ M., ALKAN, M. (2000). Resources, Conservation and Recycling, 28, 135–146.
  • 9. DEMIRKIRAN, N., KUNKUL, A., 2007, Dissolution kinetics of ulexite in perchloric acid solutions, International Journal of Mineral Processing, 83, 76–80.
  • 10. DEMIRKIRAN, N. (2008). A study on dissolution of ulexite in ammonium acetate solutions, Chemical Engineering Journal, 141, 180–186.
  • 11. DEMIRKIRAN, N. (2009). Dissolution kinetics of ulexite in ammonium nitrate solutions, Hydrometallurgy, 95, 198–202.
  • 12. EKMEKYAPAR A., DEMIRKIRAN N., KUNKUL, A. (2008). Chemical Engineering Research and Design, 86, 1011–1016.
  • 13. GERHARTZ, W. (1985). Ullmann’s Encyclopedia of Industrial Chemistry, Wiley, Germany.
  • 14. KUNKUL,A., YAPICI, S., KOCAKERIM, M., M., COPUR, M. (1997a). The dissolution kinetics of ulexite in ammonia solutions saturated with CO2, Hydrometallurgy, 44, 135–145.
  • 15. KUNKUL, A., TUNC, M., YAPICI, S., ERSAHAN, H., KOCAKERIM, M. M. (1997b). Dissolution of thermally dehydrated ulexite in sulphuric acid solution, Ind. Eng. Chem. Res., 36, 4847–4851.
  • 16. KUNKUL, A., DEMIRKIRAN, N., and BAYSAR, A., 2003, Dissolution kinetics of ulexite in ammonium sulphate solutions, Ind. Eng. Chem. Res., 42, 982–986.
  • 17. LEVENSPIEL, O. (1972). Chemical Reaction Engineering, 2nd edition, Wiley, New York.
  • 18. OZMETIN, C., KOCAKERIM, M. M., YAPICI, S and YARTASI, A. (1996). A semi empirical kinetic model for dissolution of colemanite in aqueous acetic acid solutions, Ind.Eng. Chem. Res. 35, 2355–2359.
  • 19. SCOTT, W. W. (1963). Standard Methods of Chemical Analysis, D. Van Nostrand, New York.
  • 20. TEMUR, H., YARTAŞI, A., COPUR, M., KOCAKERIM, M. (2000). The kinetics of dissolution of colemanite in phosphoric acid solutions, Ind. Eng. Chem. Res., 39, 4114.
  • 21. TUNC, M., KOCAKERIM, M. M., GUR, A., YARTASI, A. (1999). A semi empirical kinetic model for dissolution of ulexite in aqueous acetic acid solutions, Energy, Education, Science and Technology, 3, 1–10.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT2-0003-0040
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