The high-temperature decomposition reaction of sodium metabisulfite mainly uses sodium metabisulfite as the raw material. At high temperatures, it is first decomposed into sodium sulfate, sodium sulfite, and carbon dioxide, and hydrogen gas can also be obtained as a product. This reaction has a wide range of applications, mainly used for coke synthesis in the aluminum smelting industry, as well as for organic synthesis processes and the concentration and refining of black metals, rare earths, etc, As a widely used chemical, it has important market prospects.

The high-temperature decomposition reaction equipment for sodium metabisulfite is mainly composed of many components such as a vacuum reactor, mixer, vacuum pressure gauge, heat exchanger, heating furnace, discharge system, etc. The vacuum reactor is made of high-quality high-temperature resistant steel plate, and the interior is designed with a circular chamber to ensure uniform heating speed. The heat exchanger can recover heat energy, reduce the loss of the reactor steel plate, and save energy consumption, Improve the thermal efficiency of the entire equipment.

The operating principle for the high-temperature decomposition reaction of sodium metabisulfite is that the temperature of potassium nitrate is between 200 and 220 ℃, and the vacuum degree is 60-65KPa. The temperature inside the reactor should not be too high to avoid damage or hydrogen leakage from the reactor wall. Fire prevention preparations should also be made during the reaction.

High-temperature Decomposition Reaction of Sodium Metabisulfite

The high-temperature decomposition reaction of sodium metabisulfite is an important chemical process. In addition to its important applications in the aluminum smelting industry, it can also be used in other industries, such as organic synthesis processes and the concentration and refining of black metals. It has a very wide range of applications and contributes to the development of the aluminum smelting industry and other industries.