Hebei Messi Biology Co., Ltd Tibet Nagqu Bango Lake water magnesite (4MgCO3-Mg(OH)2-4H2O) is a natural alkali carbonate mineral with rich reserves, its texture is pure, white color, low impurity content, is a high quality mineral raw material for preparing magnesium products such as flame retardant, active magnesium oxide, heavy alkali magnesium carbonate, nano magnesium hydroxide. However, due to the geographical, traffic and technical factors, it restricts its development and utilization, and there are few related researches in China. Therefore, how to develop and utilize magnesite to prepare a series of high quality magnesium compounds is the main research and development work at present. Therefore, Hebei Messi Biology Co., Ltd. is dedicated to develop green, low cost and suitable for industrial production of high quality magnesium oxide and nano-magnesium hydroxide by using hydromagnesite as raw material.
Messi Biology used hydromagnesite as raw material, using the process route of “calcination-hydration-calcination” to prepare magnesium oxide nanoparticles with different characteristics, and the experimental process without adding any other reagents. The influence of calcination conditions on the morphology, crystallinity, grain size and specific surface area of the samples was investigated, and the results showed that the increase of temperature or calcination time helped to improve the crystallinity of magnesium oxide, promote the crystal growth and reduce the specific surface area. The experiments finally concluded that...
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