Method for preparing high-purity and high-dispersion nano magnesium oxide material
A nano-magnesium oxide, high-dispersibility technology, applied in the field of material processing, can solve the problems of poor purity, easy agglomeration, and poor performance of nano-materials, and achieve the effect of wide source of raw materials, simple preparation process and high dispersion
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Embodiment 1
[0030] (1) Take concentrated sulfuric acid and magnesium sulfate according to the mass ratio of 5:1, the concentration of concentrated sulfuric acid is 70%, wash the magnesium sulfate with concentrated sulfuric acid, rinse with deionized water after filtration, use a vacuum dryer to control the vacuum The temperature is 1 KPa, the temperature of the drying chamber is 100°C, and the purified magnesium sulfate raw material is obtained by drying.
[0031] (2) According to the mass ratio of 5:0.1:4.1:60, the purified magnesium sulfate raw material, sodium dodecylsulfonate, high-purity magnesium oxide particles with a particle size of 10nm and ammonia water with a mass concentration of 30% were taken, and the purified The magnesium sulfate raw material is mixed with paraffin wax, high-purity magnesium oxide particles and ammonia water solvent, dispersed and stirred evenly in a high-pressure homogenizer with an ambient temperature of 200°C, and dispersed to form a primary emulsion; ...
Embodiment 2
[0034] (1) Take concentrated sulfuric acid and magnesium sulfate according to the mass ratio of 10:1, the concentration of concentrated sulfuric acid is 78%, wash the magnesium sulfate with concentrated sulfuric acid, rinse with deionized water after filtration, use a vacuum dryer to control the vacuum The temperature is 2 KPa, the temperature of the drying chamber is 100°C, and the purified magnesium sulfate raw material is obtained by drying.
[0035] (2) According to the mass ratio of 8:0.4:1.3:60, the purified magnesium sulfate raw material, sodium tripolyphosphate, high-purity magnesium oxide particles with a particle size of 40nm and ammonia water with a mass concentration of 37% were taken, and the purified magnesium sulfate raw material was Mix with rosin, high-purity magnesium oxide particles and ammonia solvent, disperse and stir evenly in a high-pressure homogenizer with an ambient temperature of 380°C, and disperse to form a primary emulsion;
[0036] (3) pressuriz...
Embodiment 3
[0038](1) Take concentrated sulfuric acid and magnesium sulfate according to the mass ratio of 8:1, the concentration of concentrated sulfuric acid is 75%, wash the magnesium sulfate with concentrated sulfuric acid, rinse with deionized water after filtration, use a vacuum dryer to control the vacuum The temperature is 5 KPa, the temperature of the drying chamber is 120°C, and the purified magnesium sulfate raw material is obtained by drying.
[0039] (2 Take the purified magnesium sulfate raw material, sodium dodecylsulfonate, high-purity magnesium oxide particles with a particle size of 40nm and ammonia water with a mass concentration of 32% according to the mass ratio of 7:0.3:1.5:40, and the purified sulfuric acid The magnesium raw material is mixed with polyethylene glycol, high-purity magnesium oxide particles and ammonia water solvent, dispersed and stirred evenly in a high-pressure homogenizer with an ambient temperature of 280°C, and dispersed to form a primary emulsio...
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