Exploration of the Beneficiation Process of a Complex Tungsten Ore and the Comprehensive Utilization of Tailings in Inner Mongolia

Objective The mineral composition of the tungsten ore in Inner Mongolia is complex. Its metallic minerals are mainly scheelite and wolframite, and its non-metallic mineral is mainly fluorite. In the ore, the content of scheelite is slightly higher than that of wolframite, and gangue minerals have a huge interference with the recovery of tungsten minerals. In order to achieve the efficient recovery of scheelite ＆ wolframite and comprehensively utilize the associated valuable component fluorite in the tailings of tungsten selection, Method this thesis has conducted a detailed experimental study on this ore. Finally, the technological process of "desulfurization - tungsten ore mixed flotation - fluorite flotation" was determined. Result It can obtain a mixed tungsten concentrate with WO₃ grade of 63.52% and WO₃ recovery rate of 67.61%, and a fluorite concentrate with CaF₂ grade of 93.22% and CaF₂ recovery rate of 63.96%. Conclusion The scheelite, wolframite and fluorite resources in the mine were recovered effectively.