Home – Home – Jornals – Chemistry for Sustainable Development 2007 number 3

Processes of neodymium sorption from the solutions of neodymium sulphate on the natural clinoptilolite tuff were studied, and the sorption isotherms of neodymium ions were obtained. It was found that neodymium is extracted quantitatively from the dilute solutions (<0.0025 mol/l), but the exchange capacity of tuff in respect to neodymium ions decreases with increasing solution concentration. Kinetic parameters of sorption process were determined.