Calcined Bauxite Bauxite Bauxite Price

85%min calcined bauxite in bulk
calcined bauxite
85%min calcined bauxite in bulk
Introduction of calcined bauxite
85%min calcined bauxite in bulk. Calcined bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .
Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .this can removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 75% to 90%.
Specifications of Calcined bauxite
Grade
AL2O3
SIO2
FE2O3
TIO2
K2O+Na2O
CaO+MgO
Bulkdensity
HX75
75min
≤17
≤3.0
≤4.0
≤0.3
≤0.5
≥2.70
HX80
80min
≤12
≤3.0
≤4.0
≤0.3
≤0.5
≥2.80
HX85
85min
≤8
≤2
≤4.0
≤0.3
≤0.5
≥3.00
HX86
86min
≤7
≤2
≤4.0
≤0.3
≤0.5
≥3.10
HX87
87min
≤6
≤2
≤4.0
≤0.3
≤0.5
≥3.20
HX88
88min
≤5
≤1.8
≤4.0
≤0.25
≤0.5
≥3.25
HX90
90min
≤3
≤1.8
≤4.0
≤0.25
≤0.5
≥3.3
Moisture(max)
0.50%
Usageof Calcined bauxite
1.Aluminium industry.
2.Precision casting.
3.Refractory industry.
4.Silicic acid aluminium firefibre
5.Mixed with magnesium oxide,it can be an nice bonding agent,especially for pouring entire steel teeming ladle lining
6.Manufacture bauxite cement,grinding abrasives.ceracmic industry,and chemical industry for making aluminium compounds
85%min calcined bauxitein bulk
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