Tungsten ore is an important metal ore mainly used for manufacturing hard alloys, high-speed steel, electrodes, and optical glass. However, due to the Scarcity of tungsten ores, many tungsten ore deposits are of low grade. So, how to choose low-grade tungsten ore? This article will introduce some beneficiation techniques and methods for everyone.
1、 Characteristics of low-grade tungsten ore
The main characteristic of low-grade tungsten ore is its low tungsten content, accompanied by problems such as high biological quality and high impurities. This brings great difficulty to the beneficiation of tungsten ore, requiring the use of some special beneficiation methods and techniques.
2、 Beneficiation methods for low-grade tungsten ore
1. Reselection method
Gravity separation method is a commonly used mineral processing method that separates tungsten minerals and impurities from ores through the action of gravity. The operating steps of the reselection method are as follows:
(1) Grinding: Crushing tungsten ore into fine powder with a certain particle size to prepare for subsequent beneficiation.
(2) Gravity separation: Place the ground ore into a concentrator for gravity separation to separate tungsten minerals and impurities.
(3) Recycling: The separated tungsten minerals are recycled while impurities are treated.
2. Flotation method
The 
flotation method is a commonly used beneficiation method that separates tungsten minerals from impurities in the ore through bubbles. The operation steps of the flotation method are as follows:
(1) Grinding: Crushing tungsten ore into fine powder with a certain particle size to prepare for subsequent beneficiation.
(2) Flotation: Place the ground ore into a flotation machine for flotation, separating tungsten minerals and impurities.
(3) Recycling: The separated tungsten minerals are recycled while impurities are treated.
3. Electric separation method
Electric separation method is a commonly used mineral processing method that separates tungsten minerals from impurities in the ore through an electric field. The operating steps of the electric separation method are as follows:
(1) Grinding: Crushing tungsten ore into fine powder with a certain particle size to prepare for subsequent beneficiation.
(2) Electric separation: Place the ground ore into an electric separator for electric separation, separating tungsten minerals and impurities.
(3) Recycling: The separated tungsten minerals are recycled while impurities are treated.
3、 Conclusion
There are many beneficiation methods for low-grade tungsten ore, mainly including gravity separation, flotation, and electric separation. These methods have their own advantages and disadvantages, and it is necessary to choose the appropriate method based on the actual situation. At the same time, it is necessary to pay attention to the characteristics of the ore during the beneficiation process and take corresponding measures to ensure the beneficiation effect.
