СТРУКТУРА ПРОДУКТОВ ОКИСЛИТЕЛЬНОГО И СУЛЬФАТОХЛОРИРУЮЩЕГО ОБЖИГОВ НИКЕЛЕВОГО ФАЙНШТЕЙНА

The structure and phase composition of nis matte sulfate-chloridizing roasting processing products have been studied. Distribution of non-ferrous metals in the phase components at the stages of nis matte oxidizing in «fluidized bed» and calcine roasting with sylvinite is estimated. The data of optical spectrometry as well as X-ray phase, micro X-ray spectral and chemical analyses are used in the work. Based on the phase composition being formed in the course of sulfate-chloridizing roasting and the data of thermodynamic simulation, the sequence of reactions proceeding during the roasting is presented.