Research into scheelite decomposition with ammonium chloride sintering was carried out using the multifactor experiment planning method. A mathematical model of dependence betwee the scheelite decomposition degree and the sintering temperature, reagent consumption and time was obtained, which was used as the basis for optimization. A flow diagram for scheelite concentrate processing was suggested using a complex method including sintering with ammonium chloride and hydrochloric decomposition.
