Magnesite - Resource Status And Characteristics
The important feature of magnesite is that the area is not widely distributed and the reserves are relatively concentrated. Magnesite is mainly used as a refractory material, and is also used to prepare magnesium compounds and extract magnesium metal. Magnesite can be formed under hydrothermal action, sedimentation and weathering conditions; ultra-basic rocks can form porcelain magnesite by intense weathering. China's magnesite deposits are mainly concentrated in Liaoning, formed by hydrothermal metasomatism, and are known for their high quality and large scale. Other major producing countries in the world include the former Soviet Union, China, the Czech Republic, Yugoslavia, Austria and Greece.
Magnesite is the main raw material for refining magnesium metal. Two-thirds of the world's magnesite reserves are concentrated in China. One-half of the output is provided by China. In the world magnesite market, China has a pivotal position. As of 1996, there were 27 magnesite mines in the country, with reserves of 3.01 billion tons of magnesite, distributed in 9 provinces (districts), with Liaoning magnesite reserves being the most abundant, accounting for 85.6% of the country; Shandong, Tibet, Xinjiang, and Gansu are second. Of the more than 20 deposits, 10 large mines have 94% of reserves. The world's light burnt magnesium production capacity is about 2 million tons, and China's production accounts for about 50% of the world's total output.
Magnesium is present in magnesite MgCO3, dolomite CaMg(CO3)2, carnallite KCl·MgCl2·H2O. Industrially, metal magnesium is produced by electrolytically melting magnesium oxide or by reducing it with ferrosilicon or the like in an electric furnace. The former is called molten salt electrolysis, and the latter is called silicon thermal reduction. Magnesium chloride can be extracted from seawater and contains approximately 12 billion pounds of magnesium per cubic mile of seawater. It is commonly used as a reducing agent to replace metals such as titanium, zirconium, uranium and thorium. Mainly used in the manufacture of light metal alloys, ductile iron, scientific instrument desulfurizer dehydrogenation and Grignard reagents, can also be used to make fireworks, flash powder, magnesium salt and so on. Its structural characteristics are similar to those of aluminum, and it has various uses for light metals. It can be used as an alloy material for aircraft and missiles. However, magnesium is flammable in gasoline ignition, which limits its application. Daily use: Gymnasts often apply magnesium powder to increase friction. Medical use: treatment of magnesium deficiency and phlegm. Sports use: Inject before a few hours of intense exercise, or after an intense exercise to compensate for the loss of magnesium. Metal magnesium can react with most non-metals and acids; it can directly synthesize magnesium hydride with hydrogen under high pressure; magnesium can react with halogenated hydrocarbons or halogenated aromatic hydrocarbons to synthesize Grignard reagents, which are widely used in organic synthesis. Magnesium has a clear tendency to form coordination compounds. Magnesium is an important material in the aerospace industry. Magnesium alloys are used in the manufacture of aircraft and forests, engine parts, etc.; magnesium is also used in the manufacture of photographic and optical instruments; magnesium and its alloys are also widely used in non-structural applications; magnesium is a strong reduction It is also used in the production of titanium, zirconium, hafnium, uranium and thorium.
FENGCHENG CITY HEQI BRUCITE MINING CO., LTD is registered in Dandong city, Liaoning province. Sufficient talent reserves, proper environmental governance, convenient transportation and communication.We are mainly engaged in the purchase, processing and sales of mineral products.
Main products: magnesium hydroxide flame retardant and brucite powder. Complete specifications of products, welcome to visit our factory guidance.
Since its inception, with "business integrity, standard services, sustainable development, commitment to the community" is the principle of the company. Our company has a good reputation, which is oriented by customers' demands, strives for survival by quality reputation, relying on high-quality products and good services.
