Hebei Messi Biology Co., Ltd. stated that my country is a country with large magnesium resources, and the salt lakes in the west are particularly rich in magnesium resources. However, at present, my country’s salt lake chemical industry is very weak in the utilization of magnesium salts. Only a small part is used to produce magnesium salt products such as magnesium chloride hexahydrate and magnesium sulfate heptahydrate with low technical content and low added value. The use of salt lake magnesium salts to prepare high-performance and high value-added magnesium hydroxide flame retardant products will be of great significance in promoting the comprehensive utilization of salt lake magnesium resources.
As an important inorganic material, magnesium hydroxide has been widely used in the food industry, flue gas desulfurization, water treatment, etc. In recent years, the application of magnesium hydroxide has expanded to the field of flame retardants. Due to its high decomposition temperature, good thermal stability, non-toxic, smokeless and smoke-suppressing characteristics, it has attracted increasing attention and has become the focus of development and research at home and abroad. At present, most reports on the preparation of magnesium hydroxide flame retardants are prepared by the reaction of magnesium salts and alkali. There are few studies on the preparation of magnesium hydroxide powder by direct hydration of magnesium oxide. Magnesium hydroxide is prepared by direct hydration of magnesium oxide. The preparation process is simple and it is not easy to introduce impurities. Therefore, this method has good development prospects.
Hebei Messi Biology Co., Ltd. stated that it uses Qinghai Salt Lake magnesium oxide as raw material and uses direct hydration method to prepare magnesium hydroxide. Study the effects of different reaction temperatures, reaction times and raw material solid-liquid ratio on the relative quality and product particle size of magnesium oxide, explore the preparation mechanism of magnesium hydroxide from magnesium oxide hydration, and prepare hydroxide using salt lake magnesium salt as raw material. Laying the foundation for research on magnesium flame retardants.