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Product introduction of high alumina powder
Using bauxite clinker as raw material, high alumina powder was prepared by crushing, deburring and other processing technologies. It has the characteristics of high aluminum content, low iron content, high hardness, small thermal expansion coefficient, high fire resistance, and stable thermo chemical properties.
Application of high alumina powder
High alumina powder is the main raw material for the production of casting coatings, refractory bricks, casting materials, iron pit materials, refractory furnace materials, refractory materials and other non shaped refractory materials.
Common sizes of high alumina powder
Usual sizes: 0.150mm, 0.016mm, 0.075mm, 0.053mm, 0.045mm; other sizes can also be processed according to requirements.
Parameters of high alumina powder
| Grades | AL2O3 content % | Fe2O3 content % | Ti02 content % | CaO+MgO content % | K20+Na20 content % | Bulk density g/cm3 | Water absorption % |
| GAL-88 | >=88 | <=1.5 | <=4.0 | <=0.4 | <=0.4 | >=3.15 | <=4 |
| GAL-85 | >=85 | <=1.8 | <=4.0 | <=0.4 | <=0.4 | >=3.10 | <=4 |
| GAL-80 | >=80 | <=2.0 | <=4.0 | <=0.5 | <=0.5 | >=2.90 | <=5 |
| GAL-70 | >70–80 | <=2.0 | – | <=0.6 | <=0.6 | >=2.75 | <=5 |
| GAL-60 | >60–70 | <=2.0 | – | <=0.6 | <=0.6 | >=2.65 | <=6 |
| GAL-50 | >50–60 | <=2.5 | – | <=0.6 | <=0.6 | >=2.45 | <=6 |