my country is blessed with natural magnesite resources. In Liaoning Province, the reserves mining volume of non-magnesite are the same, the production volume of magnesia refractory materials the export volume of magnesia-calcium synthetic sand are ranked in the world. Relying on resource advantages, the main products produced by Chinese enterprises in the production of magnesia refractory raw materials include light burned magnesia, sintered magnesia, fused magnesia. In this article, the author introduces analyzes the development history, production status existing problems of magnesia refractory raw materials products.
Magnesium raw materials refer to magnesium-containing minerals that can be used to produce magnesia refractory materials, magnesia chemical materials, metallic magnesium other products. They are mainly divided into solid minerals such as magnesite, dolomite, brucite, etc. liquid minerals such as sea water, Salt lake brine, etc. Magnesite is one of the important refractory raw materials, mainly used for calcining light burned magnesia (CCM), sintered magnesia (DBM), fused magnesia (FM) other refractory raw materials, is the basic material for the production of magnesia refractories .
my country is one of the countries rich in magnesite resources in the world, mainly distributed in Liaoning Shandong provinces, concentrated in Liaoning Province. At present, the identified reserves of magnesite in Liaoning Province are 3.413 billion tons, accounting for about 85% 20% of the world. Liaoning's magnesite reserves mining volume, as well as the production volume export volume of magnesia refractory materials rank in the world. At present, there are 12 mining areas that have been geologically explored in Liaoning. The annual mining of special, first, second, third grade ore with MgO content ≥44% is about 16 million tons, which are mainly used by production enterprises in the province. Liaoning magnesite is a crystalline mineral with large crystal particles difficult to sinter. The industry standard YB/T 5208-2004 formulated the standard for natural magnesite with a MgO content of 33% to 47%.