Magnesium carbonate basic

white; monoclinic, a=1.656 nm, b=0.315nm, c=0.622 nm [KIR81]

Dolomite carbonization method crushes dolomite and coal and mixes them, calcined at 1000～1200℃, and then adds hydrated ash to form dolomite lime slurry. After carbonization, pressure filtration, direct steam pyrolysis, pressure filtration, drying, After crushing and packaging, the finished product of basic magnesium carbonate is obtained. Its MgCO3·CaCO3→MgO·CaO+2CO2↑MgO·CaO+2H2O→Mg(OH)2+Ca(OH)2Mg(OH)2+Ca(OH)2+3CO2→Mg(HCO3)2+CaCO3+H2O4Mg (HCO3)2→This product +5C02↑ brine, limestone carbonization method limestone is calcined with anthracite, after adding water to emulsify, react with brine to form magnesium hydroxide precipitation, and then after carbonization, pyrolysis, water elution, drying and crushing, The finished product of basic magnesium carbonate is obtained. Its CaCO3→Cao+CO2↑CaO+H2O→Ca(OH)2MgC12+Ca(OH)2→Mg(OH)2+CaCl2Mg(OH)2+CO2→Mg(HCO3)24Mg(HCO3)2→this product+ In the 5CO2↑ soda ash method, first dilute the raw bittern with water to about 20°Bé and add it to the reactor. Under stirring, slowly add a clarified lye of about 20°Bé to change from better fluidity to tofu-like viscous. When the fluidity is restored, the stirring is stopped and the reaction temperature is maintained at about 55°C. After the completion of the reaction, after two vacuum filtration, washing, crushing, drying, crushing, winnowing and packaging, the finished product of basic magnesium carbonate is obtained. Its 5MgC12+5Na2CO3+5H2O→this product+CO2↑+10NaCl ammonium bicarbonate method, please refer to light magnesium oxide.

Used as an excellent filler and reinforcing agent for rubber products. It can be used as heat-insulation and high-temperature fire-proof and heat-insulation material. Asbestos light magnesium carbonate is an excellent insulating material used in shipbuilding and boiler manufacturing sectors. It can also be used to manufacture advanced glass products, magnesium salts, pigments, paints and daily chemicals. It is used as an antacid in medicine. It can also be used as desiccant, color protectant, carrier and anti-caking agent.