How much do you know about magnesia refractory raw materials?

my country is blessed with natural magnesite resources. Especially in Liaoning Province, not only the reserves and mining volume of magnesite are global, but also the production and export volume of magnesia refractories rank first in the world. Relying on the price of fused magnesia and relying on resource advantages, the main products of Chinese enterprises producing magnesia refractory raw materials include light burned magnesia, sintered magnesia, and fused magnesia. In this article, the author introduces and analyzes the development history, production status and existing problems of magnesia refractory raw materials and products. Light burned magnesia

Resources and mining of magnesia raw materials

Magnesium raw materials refer to the magnesium-containing minerals that can be used to produce magnesia-based refractories, magnesia chemical materials, metallic magnesium and other products. They are mainly divided into solid minerals such as magnesite, dolomite, brucite, etc. and liquid minerals such as sea water, Salt lake brine and so on. Magnesite is one of the most important refractory raw materials in the world. It is mainly used for calcining light-burned magnesia (CCM), sintered magnesia (DBM), fused magnesia (FM) and other refractory raw materials. It is used to produce magnesia refractory materials. The basic material.

my country is one of the countries with the richest magnesite resources in the world, mainly distributed in Liaoning and Shandong provinces, and concentrated in Liaoning Province. At present, the identified reserves of magnesite in Liaoning Province are 3.413 billion tons, accounting for about 85% of the country and 20% of the world. Liaoning's magnesite reserves and mining volume, as well as the production volume and export volume of magnesite refractories rank first in the world. At present, there are 12 mining areas that have been geologically explored in Liaoning. The annual mining of special, first, second and 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 ore, with large crystal particles and difficult to sinter. The industry standard YB/T 5208-2004 formulated the standard for natural magnesite with a MgO content of 33% to 47%.