Magnesium hydroxide is a commonly used inorganic flame retardant today. Magnesium hydroxide powder material is an inorganic, smoke-suppressing, non-toxic flame retardant. It is widely used in the field of polymer flame retardancy and is suitable for flame retardancy and smoke suppression of polymer materials such as polypropylene, polyethylene, polyvinyl chloride, EPDM rubber and unsaturated polyester. The use of brucite micro-powder mill to process brucite micro-powder for the production of magnesium hydroxide greatly increases the added value of brucite. The following introduces the application of brucite micro-powder mill in the production process of magnesium hydroxide.
The ultrafine powder processed by brucite micro-powder mill has great value in producing magnesium hydroxide
Using brucite for the production of large-tonnage, low-value-added products such as refractory materials or refractory raw materials cannot generate great economic benefits. Brucite is a relatively rare and precious magnesium-rich non-metallic mineral, and there are not many large deposits distributed around the world. my country’s Liaoning brucite resources are relatively concentrated and of high grade, making it an ideal raw material for processing and producing magnesium hydroxide flame retardants. With the growing calls for environmental protection, it is likely to become the main source of magnesium hydroxide flame retardants needed in my country in the future. Therefore, for such limited and precious resources, we should cherish resources and focus on comprehensive utilization. It is advisable to use brucite in the production of high value-added and high-tech products. At present, the price of brucite ore is 100 yuan/t~200 yuan/t, and the market price of 3um fine powder processed by brucite micro-powder grinding is about 3,500 yuan/t, while the imported surface-treated active magnesium hydroxide is as high as 15,000 yuan/t~20,000 yuan/t. If produced by ourselves, the profit and tax per ton can be as high as 10,000 yuan. Using brucite to produce halogen-free magnesium hydroxide flame retardant masterbatch has significant economic advantages.
Production process of magnesium hydroxide using brucite micro-powder grinding
Brucite ore-crushed into small pieces and granules-brucite micro-powder grinding to 20um-2.6um-surfactant modification-heavy magnesium hydroxide
The magnesium hydroxide manufacturing process is simple and the price is relatively low.
Introduction to brucite micro-powder mill
Guilin Hongcheng HLMX ultra-fine vertical mill can grind brucite ore to 20um-5um, and the secondary mill can reach 3um. It does not need to use the pre-grinding + ultra-fine grinding process. One machine can be used for multiple purposes, saving process costs. The HLMX type brucite micro-powder mill belongs to dry grinding. The processed brucite micro-powder has the characteristics of small particle size and uniform particle size distribution, large production capacity and low energy consumption. It is suitable for use as a flame retardant for organic polymer materials. The brucite micro-powder mill belongs to mechanical dry grinding. It does not need to use chemical raw materials. The reaction product can be directly dry-grinded to obtain a pure product, which greatly saves water resources used for cleaning and protects the environment. It is a clean preparation method for ultrafine magnesium hydroxide.