What are the industrial uses of brucite?
The industrial uses of brucite mainly include the following aspects:
Fireproof coating: The water content of brucite is particularly high, about 31%, which makes it an ideal raw material for fireproof coating.
Papermaking industry: brucite has the characteristics of high whiteness, good flaking, strong adhesion, and basically no water absorption. In the papermaking industry, brucite replaces lime in the production of magnesium-based sulfite pulp, which can absorb waste pulp water for recycling, greatly reducing the pollution of waste pulp water to the environment. Since brucite does not absorb water in the air, it can also be used as a filler for moisture-proof packaging paper.
Preparation of magnesium oxide: In brucite, the magnesium oxide content is high, and brucite can be directly calcined to obtain magnesium oxide, and the process is simple, the cost is low, and it is easy to control.
Preparation of magnesium chloride: Anhydrous magnesium chloride is the main raw material for electrolytic production of magnesium metal. When brucite is used to prepare magnesium chloride, it is not easy to break when thermally decomposed, has good strength, and has a fast chlorination reaction. It has obvious advantages over magnesite and is an ideal raw material for preparing magnesium chloride.
Environmental protection field: The composition characteristics of brucite make it possible to use it as a neutralizing agent for acidic wastewater. It not only has process advantages over traditional alkaline substances (such as calcium hydroxide, sodium hydroxide, etc.) in many aspects, but also can greatly reduce costs in product treatment and emission. Brucite can also be used as a flue gas desulfurizer.
Flame retardant: Brucite decomposes at high temperatures to produce non-harmful gases such as water and carbon dioxide, and does not produce harmful gases, so it is widely used in the field of flame retardants. The decomposition temperature of brucite is relatively high, and it can exist stably at high temperatures, thus ensuring the stability and reliability of the flame retardant. Brucite has good heat resistance and acid and alkali resistance, and can play a good flame retardant effect under various environmental conditions.
Building materials industry: Brucite powder is widely used in the production of building materials such as cement, coatings, rubber, and plastics, which can improve the strength of materials and reduce costs.
Chemical industry: Brucite powder is used as a catalyst carrier, adsorbent, filler, etc., and is widely used in oil refining, pharmaceuticals, fertilizers and other industries.
Soil remediation: Brucite powder can adjust soil pH, improve soil fertility and improve soil structure, and is widely used in land remediation, improvement and finishing.
Feed additive: Brucite powder can be used as an additive in feed, which has antibacterial, anti-inflammatory and gastrointestinal disease-reducing effects in animals.
Plant protection: Brucite powder can be used for irrigation, spraying and other treatments of crops, which has the effect of removing pesticide residues and improving production efficiency.
