This study investigates the kinetic parameters required for the engineering design of treatment plants employing fluorite precipitation technology. Particular emphasis is placed on the selection of a substrate for fluorite precipitation at the minimum acceptable calcium ion concentration, as well as on determining the precipitation rate of fluoride ions onto a substrate of given composition. In addition, the particle size of the substrate materials was examined. The degree of substrate dispersion was constrained by technological requirements: finely dispersed materials impede separation from the solution and reduce the filtration rate, whereas coarse-grained substrates provide insufficient contact area between the solution and the substrate.