Application of a Temperature-Dependent Semiempirical Thermodynamic Ion-Exchange Model to a Multicomponent Natural Zeolite System
Kathryn A Mumford, David C Shallcross, Ian Snape, Geoff W Stevens
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | AMER CHEMICAL SOC | Published : 2008
A recently developed temperature-dependent semiempirical thermodynamic ion-exchange model is used to predict ion-exchange equilibrium behavior of a binary and ternary system onto a natural zeolite material. The ion-exchange system involves the cations ammonium, potassium, and calcium, at chloride concentrations ranging from 0.005 to 0.25 M and temperatures ranging from 4.0 to 40.0 °C ± 0.2 °C. The model describes the ion-exchange behavior well, considering the natural variability of the zeolite material. © 2008 American Chemical Society.
Awarded by Australian Antarctic Science (AAS)
The authors acknowledge funding support provided by the Particulate Fluids Processing Centre, a Special Research Centre of the Australian Research Council, as well as funding support from the Australian Antarctic Science (AAS) Grant Program (AAS 1300, 2570) through the Australian Antarctic Division.