|
Bauxite
Bauxite
is a raw material consisting mainly of alumina-bearing hydroxides;
oxides of iron, silicon and titanium with impurities of Ca, Mg,
Cr, V, P, Ga and other elements. Basic alumina containing rockforming
minerals of bauxites are gibbsite Al(OH)3, boehmite g-AlO(OH)
and diaspore a-AlO(OH). Besides, bauxites contain minerals of iron:
hematite a-Fe2O3, goethite a-FeO(OH); silica
as quartz a-SiO2 and kaolinite Al2[Si2O5](OH)4;
titanium dioxide as anatase and rutile. In smaller quantities bauxites
contain calcium and magnesium carbonates, sulfur, impurities of
organic substances, etc.The quality of bauxites for alumina production
is estimated basically by the contents of Al2O3
and SiO2, and also by the mineral form of aluminium oxide.
MANEK
can supply bauxite lumps and powder for any quantity from west part
of Indiathrough Portof Kandla/Okha & Porbander. also can supply
calcined bauxite Powder. The company is currently exporting
bauxite to Korea, USA & Saudi Arabia.
Applications
Bauxite
lumps are used for gray Port land cement manufacturing purpose in
big cement plants. They are also used in coating, refractory and
high alumina bricks etc. The bauxite markets mainly exist in Gulf,
Saudi Arabia, Omanand Europe.
Specifications
|
Properties
|
Range
|
Lumps
|
Powder
|
|
Al
2O3
|
Min
|
48
- 52 %
|
57
%
|
|
SiO
2
|
Max
|
10
- %
|
06
%
|
|
Fe2O3
|
Max
|
20
- %
|
02
%
|
|
P2O5
|
Max
|
0.50
- %
|
same
|
|
MgO
|
Max
|
3.00
- %
|
same
|
|
SO3
|
Max
|
1.00
- %
|
Less
than
|
|
K,
Na, Ci
|
Max
|
0.05
- %
|
same
|
|
H,2O
|
Max
|
8.00
- %
|
Typical
2 %
|
|
Size
|
Max
|
150
m
|
|
|
L.O.I
|
Max
|
26
|
28/30
%
|
|