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Calcined Bauxite
 
Refractory Grade Calcined Bauxite
   
 
Calcined Bauxite
Shaft Kiln
Round Kiln
Rotary Kiln
Specifications 
G I
G II
G II
G I
G II
G III
G IV
G I
G II
Al2O3 % Min.
85.00
86.00
87.00
87.00
88.00
89.00
90.00
87.00
88.00
Fe2O3 % Max.
3.00
2.00
2.00
2.00
1.80
1.60
1.50
2.00
1.60
Na2O+K2O % Max.
0.30
0.30
0.30
0.30
0.25
0.25
0.25
0.30
0.25
SiO2 % Max.
8.00
7.00
6.50
6.00
6.00
6.00
6.00
6.00
6.00
TiO2 % Max.
5.00
4.30
4.30
4.30
4.30
4.30
4.30
4.30
4.30
CaO % Max.
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
MgO % Max.
0.40
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
H2O % Max.
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
B.D. g/cm3Min.
2.50
3.00
3.10
3.20
3.25
3.30
3.35
3.20
3.25
 
Abrasive Grade & Welding Grade Bauxite
   
 
Calcined Bauxite
Abrasive Grade
Welding Grade
Specifications 
G I
G II
G II
G I
G II
Al2O3 % Min.
85.00
86.00
87.00
86.00
87.00
Fe2O3 % Max.
3.00
2.00
2.00
2.00
1.80
Na2O+K2O % Max.
0.30
0.30
0.30
0.30
0.25
SiO2 % Max.
8.00
7.00
6.50
6.00
6.00
TiO2 % Max.
5.00
4.30
4.30
4.30
4.30
CaO % Max.
0.40
0.40
0.40
0.40
0.40
MgO % Max.
0.40
0.35
0.35
0.35
0.35
H2O % Max.
1.00
1.00
1.00
1.00
1.00
B.D. g/cm3Min.
2.00
2.50
3.00
3.10
3.15
 
Homogenized Bauxite
   
 
 
Homogenized Bauxite
Specifications 
G 85
G 86
G 87
G 88
G 89
G 90
G 91
G 92
G 93
Al2O3 % Min.
85.00
86.00
87.00
88.00
89.00
90.00
91.00
92.00
93.00
Fe2O3 % Max.
2.00
2.00
1.80
1.60
1.60
1.50
1.30
1.20
1.00
Na2O+K2O % Max.
0.30
0.30
0.25
0.25
0.25
0.25
0.25
0.30
0.25
SiO2 % Max.
6.50
6.50
6.50
6.00
6.00
4.00
4.00
3.00
3.00
TiO2 % Max.
5.00
4.30
4.30
4.30
4.30
4.00
3.50
3.00
3.00
CaO % Max.
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
MgO % Max.
0.40
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
H2O % Max.
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
B.D. g/cm3Min.
2.50
3.00
3.10
3.25
3.30
3.35
3.40
3.45
3.45
 
 
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