Kinetics of proton transfer in the zeolitic tuff

Fehime Çakıcıoğlu-Özkan 1  and İlker Polatoğlu 1
  • 1 Chemical Engineering Department, İzmir Institute of Technology, Gulbahce Koyu, 35430, Urla-İzmir, Turkey

Abstract

The kinetics of a proton transfer into dilute acid solutions containing natural zeolitic tuff was studied by following the pH evolution of the liquid phase. Four different solutions with tuff contents of 9, 3, 1 and 0.5 (% wt) and three different particle size fractions (≤ 2000 μm) were studied. The proton concentration of the solution was decreased by increasing the zeolite amount and decreasing the particle size fraction. The proton transfer reaction was analyzed with chemical reactions and diffusion model equations. Analysis shows that the adsorption and/or ion exchange are possible mechanisms and are expressed by a second order reaction model.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] F.A. Mumpton, Proc. Natl. Acad. Sci. 96, 3463 (1999) http://dx.doi.org/10.1073/pnas.96.7.3463

  • [2] M. Doula, A. Ioannou, A.J. Dimirkov, J. Colloid Interface Science 245, 237 (2002) http://dx.doi.org/10.1006/jcis.2001.7961

  • [3] B. Ersoy, M.S. Çelik, Microporous Mesoporous Material 55, 305 (2002) http://dx.doi.org/10.1016/S1387-1811(02)00433-X

  • [4] A. Rivera, G. Rodrigiez-Fuentes, E. Altshuler, Microporous Mesoporous Material 24, 51 (1998) http://dx.doi.org/10.1016/S1387-1811(98)00148-6

  • [5] A. Rivera, G. Rodrigiez-Fuentes, E. Altshuler, Microporous Mesoporous Material 40, 173 (2000) http://dx.doi.org/10.1016/S1387-1811(00)00257-2

  • [6] A. Alietti, Am. Miner 57, 1448 (1972)

  • [7] G. McKay, Y.S. Ho, Process Biochem. 34, 451 (1999) http://dx.doi.org/10.1016/S0032-9592(98)00112-5

  • [8] W.J. Weber Jr, J.C. Morris, J. Sanit, Eng. Div. ASCE 89 (SA2) 31 (1963)

  • [9] K. Kannan, M.M. Sundaram, Dyes Pig. 51, 25 (2001) http://dx.doi.org/10.1016/S0143-7208(01)00056-0

OPEN ACCESS

Journal + Issues

Open Chemistry is a peer-reviewed, open access journal that publishes original research, reviews and short communications in the fields of chemistry in an ongoing way. Our central goal is to provide a hub for researchers working across all subjects to present their discoveries, and to be a forum for the discussion of the important issues in the field.

Search