The regularities of the kinetics of sorption of plumbum (Pb²⁺) and manganese (Mn²⁺) ions from solutions, modeling  the composition of industrial liquid wastes, on modified natural sorbents – clynoptylolite, bentonite and synthetic ion exchanged cationite KU-2-8, have been investigated. The effect of environment temperature and sorbents granulating on the process of ions concentration in solution has been studied. On the basis of the experiments results the values of a series of important  kinetics parameters of the process of ion sorption on sorbents governed by external and internal diffusion, have been calculated.