Unground Calcined Aluminas
Almatis offers a variety of unground calcined aluminas with primary crystal sizes ranging from 0.3 – 25µm. Most of these calcined aluminas are also available in continuous and batch ground versions. Our calcined alumina purity levels range from 99.5 - 99.8%, including normal soda (≤0.35%), intermediate soda (≤0.20%), low soda (≤0.10%) and ultra-low soda (≤0.05%) products.
Primary Crystal Size = 2.7µm
Specific Surface Area = 0.50 m2/g
Na2O Content = 0.08%
Primary Crystal Size = 4.8µm
Specific Surface Area = 0.20 m2/g
Na2O Content = 0.08%
Primary Crystal Size = 4.0µm
Specific Surface Area = 0.40 m2/g
Na2O Content = 0.08%
Primary Crystal Size = 4.1µm
Specific Surface Area = 0.30 m2/g
Na2O Content = 0.06%
Primary Crystal Size = 2.1µm
Specific Surface Area = 0.60 m2/g
Na2O Content = 0.03%
Primary Crystal Size = 1.8µm
Specific Surface Area = 0.70 m2/g
Na2O Content = 0.06%
Primary Crystal Size = 1.7µm
Specific Surface Area = 0.90 m2/g
Na2O Content = 0.06%
Primary Crystal Size = 1.1µm
Specific Surface Area = 1.2 m²/g
Na2O Content = 0.06%
Primary Crystal Size = 3.0µm
Specific Surface Area = 0.40 m2/g
Na2O Content = 0.30%
Primary Crystal Size = 2.7µm
Specific Surface Area = 0.50 m2/g
Na2O Content = 0.11%
Primary Crystal Size = 2.7µm
Specific Surface Area = 0.50 m2/g
Na2O Content = 0.12%
Primary Crystal Size = 2.3µm
Specific Surface Area = 0.60 m2/g
Na2O Content = 0.12%
Primary Crystal Size = 2.0µm
Specific Surface Area = 0.60 m2/g
Na2O Content = 0.12%
Primary Crystal Size = 1.7µm
Specific Surface Area = 0.70 m2/g
Na2O Content = 0.12%
BET =1.2 m²g
Na2O Content = ≤0.03%
BET = 0.90 m²g
Press Density = 2.22 g/cm³
Na2O Content = ≤0.03%
BET = 1.2 m²g
Na2O Content = ≤0.01%
BET =0.95 m²g
Press Density = 2.22 g/cm³
Na2O Content = ≤0.01%
BET = 0.6 m²g
Press Density = 2.28 g/cm³
Na2O Content = ≤0.01%