Scheelite Ore Beneficiation Process Discussion

Scheelite is kind of ore, with the shape for granular stones, white with yellow, fat luster. Orange, double cone crystal, crystal huge, and the tip is transparent dark orange. With calcite muscovite and black cassiterite symbiosis, where scheelite and calcite are fluorescent. Heating or by ultraviolet radiation, slightly purple. It is the main raw material of tungsten.
According to the physical properties of scheelite brittle, easy to wear grinding, it is recommended to use the stage grinding stage selection process, in the actual production, we can consider multi-stage grinding, first use rod grinding mill , follow-up grinding with ball mill, further improve the grinding fineness, so that more scheelite achieve monomer dissociation.
It can adopt flotation - water smelting joint process, that is, the flotation output low grade tungsten concentrate, to maximize the recovery rate, low grade tungsten concentrate and then water treatment method. Such as more than 30% of the tungsten concentrate using high pressure ammonia dip, made of paratungstate ammonia, ammonium paratungstate can be used as finished product sales, which ensures that the ore in the scheelite to be fully recovered.
If the flotation-water combination process is used, the desulfurization process used in the production of the mine can be removed to avoid the loss of tungsten in the sulfur concentrate. You can test the application of "lime method" to improve the recovery rate of scheelite.
Scheelite ore beneficiation process is mainly flotation, and the conventional idea is direct flotation. But in fact all the nature of the ore are different, especially for some parts of Africa's rich ore, the beneficiation method is not based on conventional ideas to consider, must be specific to the situation, the design of a reasonable mineral processing process and equipment configuration, to do the same investment conditions, the highest economic efficiency. Therefore scheelite ore dressing must be according to the actual situation is considering using flotation purification or flotation gravity separation enrichment and purification in advance.