High-purity magnesium hydroxide is manufactured with bischofite by synthesis method. It can be used in producing flame retardants, high-purity light magnesium oxide, high-purity heavy magnesium oxide, pharmaceutical grade magnesium oxide, food grade magnesium oxide, electrical grade magnesium oxide, silicon steel grade magnesium oxide, and other high-end magnesium oxide products. At present, it has been exported to Japan, Korea, Europe, and other regions. Moreover, high-purity magnesium oxide products with content of 99.6％～99.8％ can be produced at the request of clients.
Component requirements
|
Mass fraction of magnesium hydrate (dry basis)/% |
≥ 99.0 |
|
Mass fraction of insoluble matter in hydrochloric acid/% |
≤ 0.10 |
|
Mass fraction of water/% |
≤ 1.0 |
|
Mass fraction of chloride (cl)/% |
≤ 0.10 |
|
Mass fraction of iron (fe)/% |
≤ 0.0050 |
|
Mass fraction of calcium (ca)/% |
≤ 0.0500 |
|
Mass fraction of aluminium (al)% |
≤ 0.0100 |
|
Mass fraction of silicon (si)% |
≤ 0.0100 |
|
Mass fraction of potassium (k)/% |
≤ 0.0100 |
|
Mass fraction of sodium (na)/% |
≤ 0.0100 |
|
Mass fraction of lead (pb)/% |
≤ 0.0020 |
|
Mass fraction of arsenic (as)/% |
≤ 0.0010 |
|
Mass fraction of loss of ignition/% |
≥ 30 |
|
Whiteness |
≥ 95 |
|
Laser particle size d50/μm |
1～50 |
|
Appearance |
Spherical or other |
