Brucite

Brucite, with a simple chemical composition and a molecular formula of Mg (OH) 2, is a non-metallic mineral with a layered structure. Due to its high content of magnesium hydroxide and low impurity content, as well as its unique physical and chemical properties, brucite is a valuable industrial mineral different from other types of magnesium containing minerals. It is widely used as a flame retardant filler in fields such as plastics, rubber, and cables. The production of fireproof coatings is lightweight, decorative, and weather resistant. Preparation of magnesium oxide and metallic magnesium, production of magnesium oxide high-temperature fireproof bricks, etc.
Flame retardant filler: As a flame retardant filler for polymer based composite materials, brucite has low smoke and other characteristics, and is widely used as a flame retardant filler for plastics, rubber, cables, etc. Fireproof coating: made of cement, treated brucite, and some other components in appropriate proportions. This type of filler has the characteristics of good fire resistance, no peeling after ignition, light weight, good decorative and weather resistance. Strengthening and reinforcing fibers: Due to the hardness of fibrous brucite, it is easy to disperse in the slurry, and needle shaped fiber bundles are prone to loosen when wet with water, making them less prone to agglomeration. Compared to other fibers, they expand in volume after loosening, making them an excellent material for strengthening and reinforcing. Fibrous brucite is currently mainly used in the production of mid-range insulation materials such as microporous calcium silicate and silicon calcium board. Its characteristics are high whiteness, low bulk density, and low cost, which can replace asbestos fibers to manufacture asbestos free insulation materials. Preparation of magnesium oxide and magnesium metal: Magnesium content in brucite is relatively high, so it can be used to produce magnesium oxide and magnesium metal. Producing magnesium metal from magnesite has the characteristics of low cost and reduced pollution. Refractory materials: By high-temperature calcination of brucite, light burned magnesium, heavy burned magnesia, and high-purity magnesia can be produced. After secondary calcination, refractory bricks can be produced. This type of refractory brick can be used in the metallurgical industry to replace magnesium oxide refractory bricks.