Schematic diagram of tungsten tin separation process flow

Schematic diagram of tungsten tin separation process flow

Tungsten tin alloy is a common metal alloy, widely used in aerospace, electronics, military and other fields due to its high strength, high melting point, and high corrosion resistance. However, the separation of tungsten and tin is a crucial step in the preparation process of tungsten tin alloys. In this article, we will introduce a schematic diagram of the tungsten tin separation process to help you better understand the process and steps of tungsten tin separation.

I. Diagram of Tungsten Tin Separation Process Flow

The tungsten tin separation process mainly includes the following steps:

1. Preparation of tungsten tin alloy

The preparation of tungsten tin alloys is a prerequisite for the separation of tungsten and tin. There are many methods to prepare tungsten tin alloys, including vacuum arc melting, Vacuum induction melting, high temperature molten salt electrolysis, etc. Regardless of the method used, the prepared tungsten tin alloy requires subsequent separation treatment.

2. Dissolve tungsten tin alloy

Put the prepared tungsten tin alloy into sodium hydroxide solution to dissolve it. During the dissolution process, it is necessary to maintain stable temperature and concentration of the solution to ensure the effectiveness of tungsten tin separation.

3. Add reducing agent

During the dissolution process of tungsten tin alloy, a reducing agent needs to be added to reduce the ionic state of tungsten and tin and convert them into a metallic state. Common reducing agents include hydrogen, Sodium sulfite, etc.

4. Separate tungsten and tin

After adding a reducing agent, the ionic state of tungsten and tin is reduced to a metallic state, and at this time, tungsten and tin need to be separated by electrolysis. During the electrolysis process, it is necessary to control the current density and electrolysis time to ensure the separation effect of tungsten and tin.

5. Refined tungsten and tin

Refine the separated tungsten and tin to meet industrial requirements. There are many refining methods, including Vacuum distillation, electron beam melting, etc.

Notes on the tungsten tin separation process flow

When dissolving tungsten tin alloys, it is necessary to maintain a stable temperature and concentration of the solution to avoid the ion state recrystallization of tungsten and tin.

When adding reducing agents, it is necessary to control the amount and time of the reducing agent to ensure the reduction effect of tungsten and tin.

During the electrolysis process, it is necessary to control the current density and electrolysis time to ensure the separation effect of tungsten and tin.

When refining tungsten and tin, it is necessary to choose appropriate refining methods and strictly control the refining conditions to meet industrial requirements.

3、 Summary

Tungsten tin separation is a crucial step in the preparation of tungsten tin alloys. The tungsten tin separation process mainly includes several steps such as dissolving tungsten tin alloy, adding reducing agent, separating tungsten and tin, and refining tungsten and tin. In the process of separating tungsten and tin, it is necessary to pay attention to controlling the conditions of each link to ensure the effectiveness of tungsten and tin separation.

Schematic diagram of tungsten tin separation process flow