China is one of the countries with the richest magnesium mineral resources in the world, and its total reserves rank first in the world. Among them, magnesite resources are relatively rich and of good quality, with Liaoning Province having the largest resource reserves, accounting for 85.62% of the total reserves in China.

The magnesia refractory industry produces a variety of products, which are mainly divided into three categories according to the sintering temperature, including light burned magnesia, heavy burned magnesia Fused magnesia According to the difference of magnesium oxide content, the calcined magnesia can be subdivided into ordinary magnesia, middle grade magnesia, high-purity magnesia, etc. Among them, high-purity magnesia is widely used in metallurgy, building materials, chemical industry and other fields. Compared with ordinary magnesia and medium grade magnesia, high-purity magnesia has a more compact structure, stronger slag resistance, better thermal vibration stability, better high-temperature electrical insulation, and is an important raw material for preparing high-grade magnesia bricks and amorphous refractories.

At present, most high-purity magnesia production enterprises still use traditional processes. The production mode is simple and backward, the energy consumption is large, and the pollutant emissions are various and high in concentration, which makes it difficult to control and treat the environmental pollution of the entire magnesia refractory industry, and hinders the sustainable development of the magnesia refractory industry. Therefore, it is very important to evaluate the environmental impact of high-purity magnesia in its life cycle and scientifically analyze its specific reasons for improving the green benefits of high-purity magnesia products.