Magnesium oxide production

I. Introduction

Magnesium oxide is an important inorganic chemical, widely used in ceramics, electronics, medicine, environmental protection and other fields. With the continuous development of science and technology, the manufacturing methods of magnesium oxide have been improved and optimized. In this paper, we will introduce the manufacturing methods of magnesium oxide, including precipitation method, hydrolysis method, gas phase method, etc., and analyze the advantages and disadvantages of the various methods to provide reference for the actual production.

Magnesium oxide production factory

II. Precipitation method

Precipitation method is a common manufacturing method of magnesium oxide, the principle is to add precipitant to the solution containing magnesium ions, so that the magnesium ions precipitated, after filtration, washing, drying and other steps to get magnesium oxide products. Commonly used precipitants include sodium hydroxide, ammonia and so on.

The advantage of the precipitation method is that the process is simple, easy to operate, and the magnesium oxide products with high purity can be obtained. However, the method also has some disadvantages, such as high consumption of precipitant, high production cost, and the waste liquid produced needs to be treated, environmental protection pressure.

High Purity Magnesium Oxide
High Purity Magnesium Oxide

Third, hydrolysis method

Hydrolysis method is through the reaction of magnesium metal and water to generate magnesium hydroxide, and then calcined to get magnesium oxide method. Specific steps are as follows: add magnesium metal to water, reaction to generate magnesium hydroxide precipitate, precipitate filtration, washing, drying, and finally calcined at high temperature to get magnesium oxide.

The advantage of the hydrolysis method is that high purity magnesium oxide products can be obtained, and at the same time, the generation of waste liquid is avoided, and the environmental protection is better. However, the production cost of this method is high, need to consume a lot of energy and water resources.

Fourth, gas phase method

Vapor phase method is a method of preparing magnesium oxide through gas phase reaction, the principle is to introduce the metal magnesium vapor and oxygen into the reactor, and generate magnesium oxide under high temperature and high pressure reaction.

The advantages of the vapor phase method are high purity of the product, uniform particle size distribution, while it can be produced continuously with high production efficiency. However, the equipment investment of this method is larger and the production cost is higher.

V. Other methods

In addition to the above methods, there are some other magnesium oxide manufacturing methods, such as sol-gel method, microwave method. These methods have their own advantages and disadvantages, and the suitable method can be selected according to the specific production needs and conditions.

Conclusion

There are various manufacturing methods of magnesium oxide, and each method has its advantages and disadvantages and scope of application. In the actual production, the suitable manufacturing method should be selected according to the purity of the product, particle size distribution, production cost and other factors of comprehensive consideration. At the same time, with the continuous progress of science and technology and the improvement of environmental protection consciousness, the development of more environmentally friendly, efficient and economical magnesium oxide manufacturing methods is also the future development trend.

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