Currently, the main suppliers of magnesium oxide in the world are divided into two kinds. One kind is the content of magnesium oxide 93-95%, which is widely seen in underdeveloped countries and produced by high pollution raw materials of dolomite, magnesite and other solid mineral. The other kind is the content of magnesium oxide 96-99%, which is widely seen in developed countries, produced by sea water, brine production. For a long time, China magnesium oxide production mainly using magnesite, dolomite and other solid ore as raw material, finished products have poor quality. We had introduced advanced equipment in recent years, but the purity is also lower than 96%, difficult to meet the requirements of high purity.
At present, China’s production ability of light magnesium oxide is mostly 300-500 ton, and there are few thousand tons production enterprises, the largest one is Hebei Meishen Technology Co.,LTD. But in foreign, particularly in the United States, Western Europe, ordinary equipment capability of calcined magnesium oxide suppliers are more than ten thousand tons. The industrial production of high purity magnesium oxide series products is still in study. Functionalization, specialty and intensification has become the focus of the research and development production around the world.