Tungsten ore mining and beneficiation methods

Tungsten ore mining and beneficiation methods

Tungsten ore is an important metallic mineral that is widely used in fields such as metallurgy, electronics, aviation, and national defense. The mining and processing methods of tungsten ore are crucial for improving the quality and production of tungsten ore. This article will introduce the mining and beneficiation methods of tungsten ore, including physical beneficiation, chemical beneficiation, and biological beneficiation.

1、 Physical beneficiation

Physical beneficiation is a method of separating minerals by utilizing their physical properties. The physical beneficiation of tungsten ore mainly includes three methods: heavy medium beneficiation, flotation, and magnetic separation.

1. Heavy medium beneficiation

Heavy medium beneficiation is a method of separating minerals using media of different densities. For tungsten ore, the common medium is heavy liquid, such as Sodium bromide solution, heavy iron solution, etc. The specific gravity of tungsten ore is approximately 6.0-7.5. If the specific gravity of the heavy liquid is set between 6.0-7.5, tungsten ore and light minerals such as quartz can be separated.

2. Flotation

Flotation is a method of separating minerals by utilizing their surface properties. The flotation of tungsten ore mainly uses Sodium oxide, iron oxide and other reagents as collectors to separate tungsten ore from other minerals. During the flotation process, it is necessary to control the dosage and pH value of reagents to ensure the flotation effect.

3. Magnetic separation

Magnetic separation is a method of separating minerals by utilizing their magnetism. The magnetic separation of tungsten ore mainly utilizes the difference between magnetic minerals with strong magnetism and non magnetic minerals with weak magnetism to separate tungsten ore from other minerals. In the process of magnetic separation, it is necessary to control the strength and direction of the magnetic field to ensure the effectiveness of magnetic separation.

II. Chemical beneficiation

Chemical beneficiation is a method of separation using chemical reactions. The chemical beneficiation of tungsten ore mainly uses chemical reagents such as sodium sulfate and hydrofluoric acid to separate tungsten ore from other minerals. In the process of chemical beneficiation, it is necessary to control the dosage of reagents and reaction conditions to ensure the effectiveness of chemical beneficiation.

3、 Biological beneficiation

Biological beneficiation is a method of separation using microorganisms. The biological beneficiation of tungsten ore mainly utilizes the selective adsorption of certain microorganisms to separate tungsten ore from other minerals. In the process of biological beneficiation, it is necessary to control the type and quantity of microorganisms to ensure the effectiveness of biological beneficiation.

summary

The mining and beneficiation methods of tungsten ore include physical beneficiation, chemical beneficiation, and biological beneficiation. Physical beneficiation mainly includes three methods: heavy medium beneficiation, flotation, and magnetic separation; Chemical beneficiation mainly utilizes chemical reactions for separation; Biological beneficiation mainly utilizes microorganisms for separation. In practical applications, it is necessary to select appropriate mining and beneficiation methods based on the properties and mining requirements of tungsten ore, and control various parameters during the mining and beneficiation process to ensure the mining and beneficiation effect.

Tungsten ore mining and beneficiation methods