Tungsten tin beneficiation and separation technology

Tungsten and tin are two important metal elements widely used in fields such as electronics, lighting, aerospace, and military industry. Due to the similar physical and chemical properties of tungsten and tin, they are often associated with geological structures and deposit formation processes. Therefore, in the development of mineral resources, tungsten tin beneficiation and separation technology is particularly important.

1、 Introduction to tungsten tin beneficiation and separation technology

Tungsten tin beneficiation and separation technology refers to the technology of separating tungsten and tin from ores containing tungsten and tin through physical or chemical methods. The commonly used tungsten tin beneficiation and separation technologies include heavy medium separation, flotation, magnetic separation, electrical separation, chemical separation, and other methods.

Heavy medium separation is the use of media with different densities to separate ore containing tungsten and tin into heavy and light parts, thereby achieving the separation of tungsten and tin. Flotation is to use the different affinity between ore and foam to make tungsten and tin rise or sink together with foam, so as to realize the separation of tungsten and tin. Magnetic separation is the use of magnetic materials to separate ores containing magnetic minerals, thereby achieving the separation of tungsten and tin. Electric separation is a method of separating tungsten and tin by utilizing the difference in electrical properties of ore under the action of an external electric field. Chemical separation is the use of chemical reactions to cause chemical changes in tungsten and tin, thereby achieving the separation of tungsten and tin.

2、 Heavy medium separation technology

The heavy medium separation technology is a commonly used tungsten tin beneficiation and separation technology, which uses media of different densities to divide the ore containing tungsten tin into heavy and light parts. The medium for heavy medium separation is generally Magnetite, lead-zinc ore, dolomite, etc., with a density range of 2.5-4.0g/cm ³。

The steps for sorting heavy media are as follows:

1. Ore crushing: Crushing ore containing tungsten and tin, generally requiring a powder fineness of 0.074mm.

2. Preparation of heavy medium: Add the medium to water, stir evenly, and form a density of 2.5-4.0g/cm ³ Suspension of.

3. Heavy medium separation: The crushed ore is added to the heavy medium suspension, and the ore is divided into heavy and light parts using different densities of media. The heavy part is ore containing tungsten and tin, while the light part is ore without tungsten and tin.

4. Heavy medium recovery: Centrifuge or filter the heavy medium suspension to separate the heavy medium and reuse it.

3、 Flotation technology

Flotation technology is a commonly used separation technology of tungsten and tin. Its principle is to use the different affinity between ore and foam to make tungsten and tin rise or sink together with foam, so as to realize the separation of tungsten and tin. Flotation technology is generally divided into two types: positive flotation and reverse flotation.

The steps for positive flotation are as follows:

1. Ore crushing: Crushing ore containing tungsten and tin, generally requiring a powder fineness of 0.074mm.

2. Reagent preparation: Mix active agents, foaming agents, and other reagents in a certain proportion into a medicinal liquid.

3. Flotation: add liquid medicine to the ore, so that tungsten tin and foam rise together, and the ore without tungsten tin will sink. The rising foam forms a foam layer on the pulp surface. The foam layer contains tungsten and tin. The foam layer can be cleaned and dehydrated to obtain pure tungsten and tin.

4. Drug recovery: Recycling the drug solution for reuse.

The reverse flotation process is similar to the forward flotation, but the effect of reagents is opposite. The ore without tungsten and tin rises with the foam, while tungsten and tin sink.

4、 Magnetic separation technology

Magnetic separation technology is a commonly used tungsten tin beneficiation and separation technology, which uses magnetic materials to separate ores containing magnetic minerals, thereby achieving the separation of tungsten tin. Magnetic separation technology is generally divided into two types: dry magnetic separation and wet magnetic separation.

The steps for dry magnetic separation are as follows:

1. Ore crushing: Crushing ore containing tungsten and tin, generally requiring a powder fineness of 0.074mm.

2. Magnetic separation: The ore is placed in a magnetic field, and the ore containing magnetic minerals is subjected to magnetic force and adsorbed on the magnetic pole. The ore without magnetic minerals is not affected, thus achieving the separation of tungsten and tin.

3. Magnetic separation recovery: The ore adsorbed on the magnetic pole is recovered and reused.

The steps of wet magnetic separation are similar to dry magnetic separation, except that the magnetic field is mixed with water to form a magnetic liquid, and the ore is placed in the magnetic liquid for magnetic separation.

5、 Electric separation technology

Electric separation technology is a commonly used tungsten tin beneficiation and separation technology, which utilizes the difference in electrical properties of ore under the action of an external electric field to separate tungsten tin. Electric selection technology is generally divided into two types: direct current selection and alternating current selection.

The steps for selecting DC power are as follows:

1. Ore crushing: Crushing ore containing tungsten and tin, generally requiring a powder fineness of 0.074mm.

2. Electric separation: Place the ore in an electric field and separate tungsten and tin by utilizing the electrical differences of the ore under the action of the electric field. In an electric field, the conductivity of ores varies, with tungsten and tin having better conductivity and being collected on the electrode. Ores without tungsten and tin are not affected, thus achieving the separation of tungsten and tin.

3. Electroselection recycling: The collected tungsten tin is recycled and reused.

The steps of alternating current selection are similar to those of direct current selection, except that the direction of the electric field is different.

Tungsten tin beneficiation and separation technology Related products

• 

  Ebo machine

• 

  European version jaw crusher

• 

  Hydraulic cone crusher

• 

  Toothed roller crusher

• 

  Composite crusher

• 

  Heavy hammer crusher

• 

  Construction waste crusher

• 

  Mine crusher