绿色矿冶

The causes of sulfidization slag were described; the properties and treatment status quo of sulfidization slag were analyzed; moreover, an all-round comparison was made among hot air drying, microwave drying and steam drying in terms of their principles, merits and demerits, and economic indicators. It's concluded that drying sulfidization slag with steam is the most suitable way. Steam drying has the advantages of high automation, good operation environment, low production cost and easy temperature control, but it needs stable steam source.