Extraction method of tantalum and niobium in tin ore

Tantalum niobium is an important metal element widely used in fields such as electronics, military industry, aerospace, etc. However, tin ore contains a high content of tantalum and niobium minerals, so the extraction method of tantalum and niobium in tin ore has attracted much attention. This article will introduce several common methods for extracting tantalum and niobium from tin ore for reference.

1、 Gravity beneficiation method

Gravity beneficiation is a separation method based on mineral density difference. In tin ore, the density of tantalum niobium minerals is relatively high, so they can be extracted by gravity beneficiation. The specific steps are as follows:

1. Crush the tin ore to a certain particle size, usually 0.5-3mm.

2. Place the crushed tin ore into a gravity concentrator and separate tantalum niobium minerals from other minerals through gravity.

3. Separate minerals of different densities through vibration screening.

4. Finally, further flotation, magnetic separation, and other treatments are carried out on the separated tantalum niobium minerals to obtain high-purity tantalum niobium metal.

2、 Flotation method

Flotation method is a method of sorting based on differences in mineral surface properties. In tin ore, the surface properties of tantalum niobium minerals are different from other minerals, so they can be extracted by flotation method. The specific steps are as follows:

1. Crush the tin ore to a certain particle size, usually 0.5-3mm.

2. Put the crushed tin ore into the flotation machine and add an appropriate amount of reagent to separate the tantalum niobium mineral from other minerals.

3. Float tantalum niobium minerals onto the liquid surface through the action of bubbles.

4. Finally, further magnetic separation, gravity separation, and other treatments are carried out on the flotation of tantalum niobium minerals to obtain high-purity tantalum niobium metal.

3、 Magnetic separation method

Magnetic separation is a method of separation based on mineral magnetic differences. In tin ore, the magnetic properties of tantalum niobium minerals are different from other minerals, so they can be extracted through magnetic separation. The specific steps are as follows:

1. Crush the tin ore to a certain particle size, usually 0.5-3mm.

2. Place the crushed tin ore into a magnetic separator and add an appropriate amount of reagent to separate the tantalum niobium mineral from other minerals.

3. Separate tantalum niobium minerals from other minerals through the action of a magnetic field.

4. Finally, further flotation, gravity separation, and other treatments are carried out on the magnetically separated tantalum niobium minerals to obtain high-purity tantalum niobium metal.

4、 Chlorination extraction method

Chlorination extraction method is a method of sorting based on differences in mineral chlorination properties. In tin ore, the chlorination properties of tantalum niobium minerals are different from other minerals, so they can be extracted by chlorination extraction method. The specific steps are as follows:

1. Crush the tin ore to a certain particle size, usually 0.5-3mm.

2. Mix the crushed tin ore with a chlorinating agent and heat it to a certain temperature to separate tantalum niobium minerals from other minerals.

3. Separate tantalum niobium minerals from other minerals through the action of chlorination.

Finally, the chlorinated tantalum niobium mineral is further reduced and purified to obtain high-purity tantalum niobium metal.

In summary, there are various methods for extracting tantalum and niobium from tin ore, including gravity beneficiation, flotation, magnetic separation, chlorination extraction, etc. Choosing an appropriate extraction method can improve the purity and yield of tantalum niobium metal, meeting the needs of different fields.