In the field of high temperature production in the chemical industry, magnesia brick plays a key role in many aspects by virtue of its unique performance characteristics, which effectively supports the stable operation and efficient output of various chemical production processes.
Magnesia brick
1. High-temperature reactor lining protection
Many chemical production involves high-temperature chemical reactions, such as ammonia synthesis, hydrocarbon cracking and other reaction processes in the petrochemical industry, and the internal reactor needs to withstand long-term high temperature and complex chemical substances. As the lining material of the reactor, the excellent high temperature resistance of magnesia brick can ensure the stability of the structure in the temperature environment of up to 1500 ° C or even higher, provide a reliable enclosed space for the reaction, prevent excessive heat loss, and ensure the reaction is sustained and efficient under the set high temperature conditions. For example, in the conversion furnace of synthetic ammonia, the magnesia brick lining effectively resists the erosion and erosion of high-temperature hydrogen, nitrogen gas mixture and reaction intermediates, making the conversion reaction proceed smoothly and laying the foundation for large-scale ammonia synthesis.
2. Resisting chemical corrosion
Various chemicals produced in the process of chemical production are often highly corrosive. Magnesia brick has a good ability to resist chemical corrosion, for many acidic, alkaline or oxidizing, reducing chemical media have shown a certain tolerance. In some reaction devices for the production of chemical fertilizers, inorganic salts and fine chemical products, such as acidic gas and molten liquid produced in the production process of phosphate, magnesia brick can reduce the chemical reaction with these corrosive substances, delay the corrosion rate of the lining, extend the service life of the reactor, reduce the frequency of equipment maintenance and replacement, so as to ensure the continuity of chemical production. Reduce the production loss caused by equipment maintenance, and improve the production efficiency and economic benefit of chemical enterprises.
3. Maintaining thermal stability
Thermal stability in chemical reactors is very important for product quality and production efficiency. The thermal conductivity of magnesia brick is moderate, which can effectively store heat at high temperatures, reduce the loss of heat to the external environment, improve energy utilization efficiency, and better buffer the stress generated by thermal expansion and contraction when the temperature fluctuations are caused by material entry and exit, reaction heat release and heat absorption during the reaction process, and maintain the relative uniformity and stability of the temperature field in the reactor. This helps the chemical reaction to be carried out within a precisely controlled temperature range, reduces the occurrence of side reactions caused by local temperature differences, improves the purity and quality consistency of products, meets the strict requirements of the chemical industry for high-quality products, and provides strong material support for the fine and professional development of chemical production.
