Beneficiation method of yellow tin ore

Cassiterite is a kind of ore with high tin content, and its main components are cassiterite and Pyrite. In industrial production, yellow tin ore is an important raw material widely used in fields such as metallurgy, machinery, electronics, and chemical engineering. However, the density of cassiterite and Pyrite in tin pyrite is similar and difficult to separate, so the research on the beneficiation method of tin pyrite has always been one of the hot spots in the mining field. This article will introduce several beneficiation methods for yellow tin ore.

1、 Reselection method

Gravity separation method is one of the commonly used methods for beneficiation of yellow tin ore. This method uses the density difference between cassiterite and Pyrite in tin pyrite to separate. Firstly, the yellow tin ore is crushed into a certain particle size, and then gravity separation is carried out through a gravity concentrator. In a gravity concentrator, yellow tin ore is divided into two parts: heavy ore and light ore. The heavy ore contains higher cassiterite, and the light ore contains higher Pyrite. By separating heavy ore and light ore, high grade cassiterite and high grade Pyrite can be obtained.

2、 Flotation method

Flotation method is another commonly used method for beneficiation of yellow tin ore. The method is to separate cassiterite from Pyrite by using the difference of surface properties between cassiterite and pyrite. Firstly, the yellow tin ore is crushed to a certain particle size, and then flotation is carried out in a flotation machine. In the flotation machine, a certain amount of reagent is added to the cassiterite to make the cassiterite and Pyrite in the cassiterite react with the reagent, so that the surface of cassiterite and Pyrite have different hydrophilicity and hydrophobicity. In the flotation machine, cassiterite and Pyrite are divided into two parts: flotation foam and bottom mud. The flotation foam contains cassiterite of high grade, and the bottom mud contains Pyrite of high grade. By separating flotation foam from bottom mud, high-grade cassiterite and high-grade Pyrite can be obtained.

3、 Magnetic separation method

The magnetic separation method is a new type of method for beneficiation of yellow tin ore. The method uses the magnetic difference between cassiterite and Pyrite in pyrite to separate. Firstly, the yellow tin ore is crushed into a certain particle size, and then magnetic separation is carried out through a magnetic separator. In a magnetic separator, yellow tin ore is divided into two parts: magnetic ore and non magnetic ore. Magnetic ore contains cassiterite of high grade, and non-magnetic ore contains Pyrite of high grade. High grade cassiterite and high grade Pyrite can be obtained by separating magnetic ore and non-magnetic ore.

4、 Process optimization

In addition to the three beneficiation methods mentioned above, the beneficiation efficiency of yellow tin ore can also be improved through process optimization. Specifically, the beneficiation efficiency of yellow tin ore can be improved by changing its crushing particle size, adjusting the reagent ratio, and optimizing the parameters of the flotation machine. At the same time, a combination of multiple beneficiation methods, such as gravity separation and flotation, can also be used to improve the beneficiation efficiency of yellow tin ore.

summary

Huangxi ore is an important mineral resource, and the research on its beneficiation methods has always been one of the hotspots in the mining field. This article introduces several commonly used beneficiation methods for yellow tin ore, including gravity separation, flotation, magnetic separation, and process optimization. These methods have their own advantages and disadvantages, and suitable methods can be selected based on the actual situation. At the same time, in order to improve the beneficiation efficiency of yellow tin ore, a combination of multiple beneficiation methods can also be used to achieve better separation results.