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Preparation process and application of magnesium carbonate from hydromagnesite

Hebei Messi Biology Co., Ltd. stated that hydromagnesite is used as raw material, and magnesium carbonate is produced by carbonization through a special process. The performance of basic magnesium carbonate used as a transparent rubber filler depends on the chemical purity, the ease of processing when it is mixed with rubber, the color tone and transparency of the vulcanized rubber when it is mixed, and the reinforcing effect. These properties are often dominated by physical properties such as particle size, specific gravity, content converted to magnesium oxide, crystal structure development, and refractive index of magnesium carbonate, and these physical properties are limited by the crystallization characteristics and shape of magnesium carbonate before transformation. Our special technology has become an indispensable condition for the manufacture of high-quality rubber fillers.

Hydromagnesite (6)

Magnesium carbonate, molecular formula MgCO3, relative molecular weight 467.64, is a white amorphous powder, its chemical composition is a composite of magnesium carbonate and magnesium hydroxide, relatively stable in the air. Its molecular formula varies slightly with changes in production conditions. Slightly soluble in water, weakly alkaline, easily soluble in dilute acid, foams and decomposes in acid to release carbon dioxide, can be decomposed into magnesium oxide and carbon dioxide when heated and calcined.

Hebei Messi Biology Co., Ltd. said that magnesium carbonate is mainly used as a filler and reinforcing agent for transparent or light-colored rubber products. After it is mixed with rubber, it hardly changes the refractive index of the rubber itself, and can enhance the wear resistance of the rubber. , Flexibility and tensile strength. Mainly used as an additive in paints, inks and coatings, it is also widely used in toothpaste, medicine and cosmetics industries.

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