Sorption studies on ion exchange resins. 1. Sorption of strong acids on weak base resins

Adsorption equilibria of formic acid by weakly basic adsorbent Amberlite IRA-67: Equilibrium, kinetics, thermodynamic

“…Kanazawa et al [16,17] investigated sorption equilibria of nine organic acids including monocarboxylic and monosulfonic acids on 16 anion exchangers. Acid separation behavior on a different resin type and basicity [18] and carboxylic acid transport in porous anion exchangers [19,20] were also studied.…”

Intraparticle diffusion of phosphates in OH‐type strongly basic ion exchanger

“…Several studies on adsorption and kinetics of strong and weak acids in aqueous solutions using weak-base resins have been extensively reported (Bhandari et al, 1992a(Bhandari et al, ,b, 1993(Bhandari et al, , 1997Helfferich and Hwang, 1985;Rao and Gupta, 1982;Takatsuji and Yoshida, 2001;Yoshida and Takatsuji, 2000). Takatsuji (2000, 2001) investigated a parallel transport by surface and macropore diffusions of acetic acid and lactic acid in DIAION WA30 and Chitopearl CCS.…”

Investigating the differences in acid separation behaviour on weak base ion exchange resins

“…A number of experimental and theoretical studies have been reported on the sorption of various acids on weak base resins (Kunin, 1958;Hel!erich, 1962;Adams, Jones & Miller, 1969;Holl and Sontheimer, 1977;Hubner and Kadlec, 1978;Rao and Gupta, 1982a,b;Hel!erich and Hwang, 1985;Bhandari, 1998;Garcia and King, 1989;Bhandari, Juvekar & Patwardhan, 1992a,b, 1993Bhandari, Sawarkar & Juvekar, 1996, Yoshida, Kishimato & Kataoka, 1994Cloete and Marais, 1996;Takatsuji and Yoshida, 1994, 1998aJuang and Chou, 1996;Husson and King, 1999a,b). In many instances, acid sorption was considered irreversible and the sorption equilibrium was interpreted in terms of simple Langmuir-or Freundlich-type isotherm.…”