Four grinded mineral materials were studied for their ability of P sorption from the aq. phosphate solns. in 24-h tests by using equations of Langmuir and Freundlich isotherms. The particular sorbents contained mainly CaO 21.6% and Al2O3 5.6%, CaO 29.6% and Fe2O3 12.3%, CaO 69.4%, Al2O3 14.0% and CaO 8.4%, and showed the sorption capacities 56, 159, 285 or 2.4 mg/g, resp.