ZN Law "flotation tungsten is different from the traditional" soda "and" lime Law ", instead of using tungsten flotation reagent ZN our newly developed, floating a black scheelite in pulp natural PH value The new method has the advantages of high grade of tungsten coarse concentrate, high recovery rate, dehydration of products, simple treatment of tailings water, etc. The main flotation process of the persimmon orchard of the “ZN method†flotation tungsten is adopted, and the process flow is simplified. The investment in infrastructure construction is saved, and the recovery rate of tungsten and fluorite is significantly improved. This method is the first in China and abroad, and has a general promotion significance for the beneficiation of complex refractory black and white tungsten symbiotic ore.
The main advantage:
1. The tungsten coarse concentrate has high grade and high recovery rate. The grade of tungsten coarse concentrate increased by 8.89 percentage points compared with the original production process, and the tungsten recovery rate increased by 10.41 percentage points;
2. The tungsten coarse concentrate has high grade and low yield, and the white tungsten heating flotation mine is reduced by two-thirds, which not only selects high efficiency, but also saves energy;
3, PH value of slurry NATURAL flotation tungstate, coarse concentrate thickener overflow tungsten metal loss is reduced 1.39 percentage points, after the tailings water clarification process without to meet emission standards;
4, "ZN method" flotation tungsten has strong adaptability to low temperature, and the slurry temperature can still obtain good flotation results at 5 °C;
5. The loss of fluorite in tungsten coarse concentrate is reduced by 12.88 percentage points. The natural PH value of the pulp is floated by tungsten, and the fluorite flotation is used to save the pharmacy. The recovery rate of fluorite is high;
6, the process is simple, production operation management is simple and convenient, does not require a large number of re-election equipment , saving plant area, saving infrastructure investment.
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