Separation of Tin and Tungsten Ores

Separation of Tin and Tungsten Ores

Tin ore and tungsten ore are two very important metal ores that have extensive applications in industrial production and military fields. However, the separation of tin and tungsten ore is a very complex task that requires the use of various mineral processing technologies. This article will introduce the operating steps and commonly used sorting methods for tin and tungsten ore sorting.

1、 Separation of tin ore

Tin ore is a kind of tin bearing quartz mineral, which commonly includes cassiterite, Wolframite, Scheelite, etc. The sorting of tin ore mainly involves the following steps:

1. Crushing and grinding of ore

Firstly, the tin ore needs to be crushed and ground to a suitable particle size. The purpose of this step is to facilitate subsequent sorting and extraction.

2. Reselection

Gravity separation is one of the main methods for tin ore sorting. In the process of gravity separation, the density difference between antimony, lead, silver and tin quartz minerals can be used for separation. Generally speaking, the density of tin quartz minerals is between 6-7g/cm ³， The density of minerals such as antimony, lead, and silver is between 5-6g/cm ³， Therefore, tin quartz minerals can be separated from other minerals through re selection.

3. Flotation

Flotation is another commonly used method for tin ore separation. In the flotation process, the hydrophilicity difference between tin quartz minerals and sulfide minerals can be utilized for separation. Generally speaking, tin quartz minerals have lower hydrophilicity, while minerals such as sulfides have higher hydrophilicity. Therefore, tin quartz minerals can be separated from other minerals through flotation.

2、 Separation of tungsten ore

Tungsten ore is a kind of ore containing tungsten. Wolframite, Scheelite, etc. are common. The separation of tungsten ore mainly involves the following steps:

1. Crushing and grinding of ore

Like tin ore, tungsten ore also needs to be crushed and ground to achieve appropriate particle size.

2. Reselection

gravity separation is also one of the main methods for tungsten ore separation. In the process of gravity separation, the density difference between tungsten quartz mineral and other minerals can be used for separation. Generally speaking, the density of tungsten quartz minerals is between 7-8g/cm ³， And the density of other minerals is between 2-7g/cm ³ Therefore, tungsten quartz minerals can be separated from other minerals through re selection.

3. Flotation

Flotation is also one of the commonly used methods for tungsten ore sorting. In the flotation process, the hydrophilicity difference between tungsten quartz minerals and other minerals can be utilized for separation. Generally speaking, tungsten quartz minerals have lower hydrophilicity, while other minerals have higher hydrophilicity. Therefore, tungsten quartz minerals can be separated from other minerals through flotation.

conclusion

The separation of tin and tungsten ores is a very complex task that requires the use of various mineral processing technologies. In tin ore sorting, gravity separation and flotation are commonly used separation methods; In tungsten ore sorting, gravity separation and flotation are also commonly used separation methods. Through these sorting methods, tin quartz minerals and tungsten quartz minerals can be separated from other minerals, thereby achieving the purification and extraction of ores.

Separation of Tin and Tungsten Ores