How to separate Wolframite and tin ore

How to separate Wolframite and tin ore

Wolframite and tin ore are common metal ores, which are widely used in industrial production. However, Wolframite and tin ore are usually mixed together. How to separate them has become an important issue in industrial production. This article will introduce the separation method of Wolframite and tin ore, so that you can understand the operation steps of this process.

1、 Characteristics of Wolframite and tin ore

Wolframite is a tungsten bearing ore, usually black or brown, with high hardness and density. Tin ore is a type of ore containing tin, usually gray or brown, with lower hardness and density. Because the density, hardness and other physical characteristics of Wolframite and tin ore are different, they can be separated by physical separation.

2、 Heavy medium sorting method

The heavy medium separation method is a common separation method for Wolframite and tin ore. The principle of this method is to separate Wolframite from tin ore by using different densities.

Operating steps:

1. Prepare heavy medium: Mix magnetic powder and water to make a heavy medium. The density of magnetic powder is 5g/cm ³， The density of water is 1g/cm ³， The density of heavy media is generally 2.5g/cm ³。

2. Put the mixture of Wolframite and tin ore into the separation tank, add heavy medium, and mix evenly.

3. The heavy medium in the sorting tank will form different concentration gradients based on different densities. The density of Wolframite is large, and it will sink to the bottom of heavy medium; Tin ore has a lower density and will float to the upper layer of the heavy medium.

4. Divide the heavy medium in the separation tank into different layers to separate Wolframite and tin ore.

3、 Reselection method

Gravity separation is a method of separating Wolframite and tin ore by gravity. The principle of this method is to separate Wolframite from tin ore by using different densities and gravity.

Operating steps:

1. Put the mixture of Wolframite and tin ore into the gravity separator and add water for mixing.

2. The gravity concentration opportunity separates Wolframite from tin ore according to different densities. The density of Wolframite is high, and it will sink to the bottom of the gravity separator; The density of tin ore is small and will float to the upper layer of the gravity separator.

3. The sorted Wolframite and tin ores are discharged from the machine to complete the separation.

4、 Flotation method

flotation method is a method to separate Wolframite from tin ore through bubbles. The principle of this method is to separate Wolframite from tin ore by using different surface properties.

Operating steps:

1. Put the mixture of Wolframite and tin ore into the flotation cell, and add reagents and air.

2. Reagents will make the surface of Wolframite and tin ore have different properties. The surface of Wolframite becomes hydrophilic and the surface of tin ore becomes hydrophobic.

3. The air will form bubbles to float the hydrophilic Wolframite to the water surface; Hydrophobic tin ore sinks to the bottom.

4. Discharge Wolframite and tin ore respectively from the tank to complete separation.

5、 Summary

The separation of Wolframite and tin ore is a very important process in industrial production. This paper introduces three common separation methods: heavy medium separation, gravity separation and flotation. These methods are based on the difference of physical characteristics between Wolframite and tin ore, and have the advantages of simple operation and high efficiency. In practical operation, different sorting methods can be selected according to specific situations to achieve the best sorting effect.

How to separate Wolframite and tin ore