Abstract: Electrolytic manganese slag has become a characteristic industrial solid waste in China.Using electrolytic manganese slag to prepare fertilizer is one of the important ways to realize the resource utilization.This study comprehensively analyses the mineralogical properties of manganese slag from Guangxi by MLA, TG, SEM and TEM.The analysis includes the elements and mineral composition, mineral grain size distribution, mineral association relationship and liberation degree, mineral characteristics and micro-morphology.This study provides a theoretical basis for activating the manganese slag to preparation silico-manganese fertilizer.

Key words: electrolytic manganese slag;mineralogical property;silico-manganese fertilizer;resource utilization