Ion exchange properties of the sodium phlogopite and biotite Academic Article uri icon


  • The ion exchange behavior of three sodium micas (phlogopite, Ward's Sci.; phlogopite, Suzorite Inc., biotite, Ward's Sci.) towards Li+, K+, Rb+, Cs+, Mg2+, Ca2+, Sr2+, Ba2+, Pb2+, Hg2+. Cp2+. Cu2+. Cd2+ and Zn2+ ions has been studied. The ion exchange isotherms of alkali, alkaline earth and some other divalent cations were determined and concentration equilibrium constants as a function of metal loading and temperature were analyzed. Sodium micas exhibit high affinity for heavy alkali metals with the selectivity order Rb+ > Cs+ > K+. By studyin the cesium uptake in the presence of NaNO3, CaCl2, NaOH, NaOH + KOH, HNO3 electrolytes (in the range of 0.01 - 6 M) it was found that sodium micas could remove cesium efficiently in neutral and alkaline media, which make them promising for certain types of nuclear waste treatment.

published proceedings


author list (cited authors)

  • Bortun, A. I., Bortun, L. N., Khainakov, S. A., & Clearfield, A.

citation count

  • 21

complete list of authors

  • Bortun, AI||Bortun, LN||Khainakov, SA||Clearfield, A

publication date

  • July 1998