Silicon Tetrachloride Pyrolysis
The method of pyrolysis of silicon tetrachloride
If you want to obtain high-purity silicon, the method of pyrolysis of silicon tetrachloride is very important. The method is to place silicon tetrachloride in a special reactor. The kettle has excellent heat resistance and corrosion resistance to ensure the stability of the reaction.
First, heat up to a suitable temperature range, which needs to be precisely controlled. Because the temperature is too low, the reaction is slow and the product is impure; if the temperature is too high, it may cause side reactions. When the required temperature is reached, silicon tetrachloride gradually pyrolyzes. Silicon tetrachloride is at high temperature to precipitate silicon and chlorine gas.
Silicon, which gradually converges into particles and settles at the bottom of the kettle. After subsequent refining, high-purity silicon can be obtained, which is suitable for many high-tech fields, such as chip manufacturing, photovoltaic industry, etc. Chlorine gas also needs to be properly collected and treated, and it should not be allowed to escape from the atmosphere to avoid polluting the environment. And chlorine can be recycled and reused to save resources.
To perform this pyrolysis method, it is necessary to strictly monitor various parameters, such as temperature, pressure, reaction time, etc. Precise regulation can make the reaction go smoothly and obtain high-quality silicon products to meet the needs of today's technological development.
