1. One of the main uses of magnesium oxide is as a flame retardant. Traditional flame retardant materials, flame retardant mixtures of halogen-containing polymers or halogen-containing flame retardants are widely used.
2. Another use of magnesium oxide can be used as a neutralizing agent, magnesium oxide is alkaline, and has good adsorption performance. It can be used as a neutralizing agent for acid-containing waste gas, wastewater treatment, heavy metal and organic waste liquid treatment, etc. With the improvement of environmental protection requirements, domestic demand has grown rapidly.
3. The finely divided magnesia can be used as an optical coating. The coating is transparent when the coating thickness is between 300 nm and 7 mm. The 1 mm thick coating has a refractive index of 1.72.
4, used for rock climbing purposes, can absorb sweat, (Note: inhalation of magnesium oxide smoke can cause metal smoke disease)
5, mainly used to formulate internal medicine to neutralize excessive gastric acid. Commonly used preparations are: magnesium milk-emulsion; magnesium cover sheets - each containing MgO 0.1g; acid-dissolving powder - a mixture of magnesium oxide and sodium bicarbonate.
6. Light magnesium oxide is mainly used as raw material for preparing ceramics, enamels, refractory crucibles and refractory bricks. Also used as a polishing agent url] coating] and paper fillers, chloroprene and fluoro rubber accelerators and activators.
Advanced lubricant grade applications:
It is mainly used as a cleaning agent, vanadium inhibitor and desulfurizer in advanced lubricating oil processing, which greatly improves the compactness and rheology of lubricating film and reduces ash.
De-lead and mercury removal reduce the pollution of lubricating oil or fuel waste to the environment. Surface-treated magnesia can also be used as a complexing agent, chelating agent and carrier in the refining process, which is more conducive to product fractionation and improve product quality. Especially when heavy oil is burned, adding Mg0 can eliminate the damage of vanadium in heavy oil to the furnace.
Food grade applications:
It is used as a supplement for magnesium additives such as food additives, color stabilizers, and pH adjusters as health care products and foods. It is used as a decolorizer ice cream powder pH regulator when granulated sugar is refined.
As an anti-caking agent and antacid used in the fields of wheat flour, milk powder chocolate, cocoa powder, grape powder, sugar powder, etc., it can also be used in the fields of ceramics, enamels, glass, dyes and the like.
Medical grade application areas:
In the biopharmaceutical field, medical grade magnesium oxide can be used as an antacid, adsorbent, desulfurizer, lead removal agent, complex filter aid, pH regulator, medicinal acid and laxative, and inhibit and alleviate hyperacidity. For the treatment of gastric ulcer and duodenal ulcer disease. Neutralizing gastric acid is strong, slow and long-lasting, and does not produce carbon dioxide.
Silicon steel grade application areas:
Silicon steel grade magnesia has good magnetic permeability (ie, has a large positive magnetic susceptibility) and excellent insulation properties (ie, conductivity can be as low as 10-14 us/cm densification). The surface of the silicon steel sheet can be formed into a good insulating layer and a magnetic conductive medium to suppress and overcome the eddy current and skin effect loss (referred to as iron loss) of the silicon steel core in the transformer.
Improve the insulation properties of silicon steel sheets and use them as high temperature annealing separators. It can also be used as a dephosphorization agent, a desulfurizer, and an insulating coating agent in silicon steel for ceramic materials, electronic materials, chemical raw materials, binders, and additives.