Basista O. Technologies of langbeinite concentrate acid dissolution with processing solutions in potassium-magnesium and diammophos.

In this thesis two new processes of langbeinite concentrate processing in conditioned fertilizers with using of mineral acids (nitric and phosphoric acids) for its dissolution have been developed. The influence of temperature, concentration of acid, the ratio between solid and liquid phases, the hydrodynamic conditions on kinetics and amount of extraction potassium sulfate and magnesium sulfate from langbeinite concentrate during its acid dissolution has been determined. The temperature coefficients and imaginary energies of activation have been calculated. The passing of processes in the diffusion region is proved. The necessary values of main technological parameters for realization of acid dissolution processes were determined.