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Yingkou Shengdetong Magnesium Chemical Co., Ltd.

Contact: Hou

Mobile: +86-135-1417-3977

Email: sd15141721000@163.com

Website: en.lnsdt.com

Address: No. 89, Orange Lake West Road, Yingkou District, China (Liaoning) Pilot Free Trade Zone


National recommended magnesia

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National recommended magnesia

2020-05-15 11:22:13
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What are the sources of magnesium oxide?

(One). Magnesite ore is one of the main sources of magnesium oxide, (MgO) content accounts for about 47%, MgCO3 is lightly calcined (400 ~ 600 ℃) and then ground into a solid powder (Mgo). The mineral sources are widely distributed in Liaoning, Xinjiang, Sichuan, Shandong, Tibet and other provinces and autonomous regions, with reserves of 2.8 billion tons, accounting for 30% of the world ’s mineral sources.

(two). Dolomite mine [CaMg (CO3) 2] is also the main source of magnesium oxide, and its reserves are larger and more widely distributed, with MgO content accounting for about 22%. The content of CaO is about 30%, and the rest is 48%. The theoretical structure of MgCO3 and CaO is one to one. The demarcation line of dolomite is based on the content of MgCO3 above 25%, otherwise it cannot be used as an ore for producing magnesium oxide, nor can it be called dolomite.

(three). Serpentine [Mg6 (Si4O10) (OH) 2] is also the raw material for the production of magnesium oxide, mainly hydromagnesite (3MgO • 2SiO2 • 2H2O).

(four). The slag for smelting light magnesium alloy is also the raw material for the production of magnesium oxide.


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