Quality and Usage
| Compound |
%, dry basis |
Comments |
| Available alumina: Al2O3 |
Min 47
|
Gibbsite |
| Reactive silica: SiO2 |
Max 4.5
|
|
| Iron oxide: Fe2O3 |
< 14
|
|
| Moisture |
8 - 10 (wet basis)
|
|
Gibbsitic bauxite ideal for:
- Low temperature digestions
- High temperature digestions as sweetener
Quality as per SGS Australia
| Sample |
AA |
AL2O3 |
RxSiO2 |
SiO2 |
L.O.I. |
Fe2O3 |
Na2O |
TiO2 |
NpO |
P |
CaO2 |
SO3 |
| 1 |
46.3 |
51.9 |
4.0 |
4.38 |
28.5 |
14 |
0.01 |
1.13 |
<0,01 |
0.029 |
<0,01 |
0.0018 |
| 2 |
50.0 |
53.0 |
3.0 |
3.5 |
29.3 |
12.8 |
<0,01 |
1.1 |
0.01 |
0.022 |
0.01 |
0.21 |
| 3 |
50.9 |
54.5 |
3.0 |
3.28 |
30.3 |
11 |
<0,01 |
0.82 |
0.01 |
0.021 |
0.02 |
0.22 |
| 4 |
46.0 |
53.1 |
3.2 |
3.77 |
28.4 |
12.9 |
<0,01 |
0.99 |
0.01 |
0.025 |
0.02 |
0.21 |
| 5 |
50.3 |
53.6 |
3.5 |
3.97 |
28.8 |
12.8 |
<0,01 |
0.92 |
0.01 |
0.022 |
0.02 |
0.21 |
| 6 |
49 |
52.1 |
2.6 |
2.99 |
28.4 |
15.6 |
0.02 |
1.1 |
0.02 |
0.028 |
0.01 |
0.2 |
| 7 |
49.5 |
52.9 |
2.6 |
2.95 |
29.4 |
13.9 |
<0,01 |
0.95 |
0.01 |
0.025 |
<0,01 |
0.21 |
| 8 |
46.9 |
52.0 |
2.9 |
3.17 |
28.8 |
15.2 |
<0,01 |
0.98 |
0.01 |
0.024 |
<0,01 |
0.27 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| Average |
48.61 |
52.89 |
3.1 |
3.50 |
28.99 |
13.53 |
0.01 |
1.00 |
0.01 |
0.02 |
0.01 |
0.19 |
