Calcined Bauxite

1. Calcined bauxite
AL2O3:70% min.
FE2O3:2% max.
SIZE: 1-5MM 90% min.

2. Round kiln bauxite
Al2o3: 80-90% min.
Fe2o3: 1.5-2.0% max.
B.D.: 3.10g/cm-3.35g/cm min.

3. Shaft kiln bauxite
Al2o3: 80-85% min.
Fe2o3: 1.5-2.0% max.
B.D.: 3.10g/cm-3.25g/cm min.

4. Rotary kiln bauxite
Al2o3: 80-90% min.
Fe2o3: 1.5-2.0% max.
B.D.: 3.10g/cm-3.35g/cm min.

. Raw Bauxite

AL2O3:70%min

FE2O3:3%max

Size:0-50mm or 25-50mm

 

Rotary Kiln Calcined Bauxite

Grade	AL2O3	FE2O3	TIO2	K2O+Na2O	CaO+MgO	Bulk density
75	75min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.70
80	80min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.80
85	85min	≤2	≤4.0	≤0.3	≤0.5	≥3.00
86	86min	≤2	≤4.0	≤0.3	≤0.5	≥3.10
87	87min	≤2	≤4.0	≤0.3	≤0.5	≥3.20
88	88min	≤1.8	≤4.0	≤0.25	≤0.5	≥3.25
90	90min	≤1.8	≤4.0	≤0.25	≤0.5	≥3.3

 

Down draft kiln calcined bauxite:

AL2O3:87%MIN  FE2O3:1.8%MAX     TIO2:4%MAX            CA0+MGO:0.4%MAX  K2O+NA2O:0.25%MAX 

Bulk Density:3.15g/cm3       MOISTURE:4%MAX

 

Size:0-1mm  1-3mm  3-5mm  5-8mm  8-15mm  0-5mm  0-50mm

100 mesh 200 mesh  325mesh

 

Price:

0-50mm   USD 372/MT    FOB TIANJIN

0-1MM   1-3MM  3-5 MM   USD  398/MT  FOB TIANJIN

200MESH   USD 415/MT   FOB TIANJIN

 

Calcined Bauxite used in 1.aluminium metallurgy, 2 refractory material, 3 precision casting, 4 aluminate cement