For the production of magnesium oxide from sea water and brine, the main methods currently used in China are lime (or dolomitic lime) method, ammonium bicarbonate method and caustic soda method.
The disadvantage of lime method is that the content of calcium oxide is high and it is difficult to separate the products. The quality of magnesium oxide is mostly below 96%, and further improving the quality will greatly increase the cost.
Ammonium bicarbonate method can produce high grade magnesium oxide, but the operation environment is poor, the ammonia recovery process energy consumption is high, the production of high purity magnesium oxide cost is high.
Caustic soda production of magnesium oxide, product quality is high, but the cost is difficult to pass.
Therefore, the production of high purity magnesium oxide with brine as raw material in China is very few and the output is very small.
There are a wide range of magnesium oxide products, including industrial magnesium oxide (light magnesium oxide), active magnesium oxide, electrician grade magnesium oxide, calcined magnesium oxide, magnetic magnesium oxide, heavy magnesium oxide, silicon steel grade magnesium oxide, pharmaceutical grade magnesium oxide, reagent grade magnesium oxide, high purity magnesium oxide, etc.
The price of magnesium oxide with different grade and function is far from each other.
China's general-grade magnesium oxide products have a large output and a large number of exports, and the market is weak. In order to compete for the market, enterprises compete to lower prices, resulting in poor economic benefits or even losses.
High purity magnesium oxide, active magnesium oxide, silicon steel magnesium oxide and other fine magnesium oxide market demand is large, a large number of products imported, broad market prospects.
Therefore, it has become a domestic development trend to promote the structural adjustment of magnesium industry, accelerate the research and development of magnesium salt fine products and produce functional magnesium oxide products
Meishen is the world's leading producer of magnesium oxide, Magnesium oxide is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in the form of periclase in nature and is a raw material for magnesium smelting. Magnesium oxide is white or light yellow powder, odorless, tasteless, this product is insoluble in water and ethanol, melting point 2852 ° C, boiling point 3600 ° C, magnesium oxide has high refractory insulation properties. It can be converted into crystal by burning at a temperature above 1000 ° C. If it rises above 1500 ° C, it will form a burnt magnesia or sintered magnesia.
Magnesium oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia bricks, refractory materials and moisturizing materials. It is also widely used in rubber, rubber sheet, rubber products, pharmaceutical industry, food industry, plastic sheet accelerator, glass fiber reinforced plastics and Surface coating of silicon steel sheet, paper production, steel ball polishing, leather treatment, insulation materials, grease, dyes, ceramics, desiccant, resin, flame retardant, etc.
Hebei Meishen Chemical Technology Group is the main magnesium oxide producer in the world. It is also the largest magnesium salt producer in China and has won the ISO9002 quality system certification. It also has GMP-Certification.
With rich experience in the research, development, production, management and operation of magnesium oxide products, Meishen Group has always attached great importance to the research and development of new products and strict requirements on product quality. Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.
Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.