Hot Sale Bauxite Powder in Refractory Bauxite Ore Prices

• Refractoriness (℃): 1580< Refractoriness< 1770
• Type: Refractory Material
• Shape: Block
• Material: Alumina Cement
• Sample: Provide for Free
• Al2O3 Content: 65-88%
• Model NO.: XT-P1
• Application: Refractory, Ceramics, Aluminum Industry.
• Bulk Density: 2.45 - 3.15
• K2o+Ca2o: <0.04%
• Color: Grey or Yellow
• Transport Package: 25kg/PP Bag, or 1000kg/Jumbo Bag According to Cust
• Specification: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200mesh,
• Trademark: SWT-
• Origin: Henan. China
• HS Code: 250830000
• Production Capacity: 3000 T / Month

Product Description

                Hot Sale Bauxite powder in Refractory Bauxite Ore Prices

Calcined bauxite is one of the principal ore of aluminum. 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 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 84%to88%.the heating is carried out in rotary kilns.

Classification Introduction:

1.Classified according to the type of bauxite raw materials:
   (1) raw bauxite, alumina original ore (natural sedimentary rock class).
   (2) the calcined bauxite, the raw bauxite after high temperature calcination (1200 ~ 1700 ºC)

2.Calssified according to the different calcining kiln where the bauxtie is divided into:
   (1)Shaft kiln bauxite
   (2)Rotary kiln bauxite
   (3)Round kiln bauxite

3.Calcined Bauxite according to different uses for division:
   (1) the refractory grade bauxite
   (2) the grinding grade alumina
   (3) the welding grade bauxite

Bauxite has a lot of different specifications like
Granular ( 0-1mm 1-3mm 3-5mm 5-8mm) 
Powder ( 200mesh 325mesh )
and big lump , the Al2O3 from 65-90%
we can also produce according to customers  special requirement 
 

Chemical composition(%)	RKB-75	RKB-78	RKB-80	RKB-82	RKB-84	RKB-85	RKB-86	RKB-87	RKB-88	RKB-89
Al2O3 (min)	75.00	78.00	80.00	82.00	84.00	85.00	86.00	87.00	88.00	89.00
Fe2O3 (max)	2.50	2.30	2.20	2.20	2.00	2.00	2.00	1.80	1.70	1.60
SiO2 (max)	19.00	16.00	14.00	12.00	10.00	9.00	8.00	7.00	6.00	5.00
TiO2 (max)	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00
CaO+MgO (max)	0.80	0.80	0.80	0.70	0.70	0.60	0.60	0.60	0.60	0.60
K2O+Na2O (max)	0.50	0.50	0.50	0.40	0.40	0.40	0.30	0.30	0.40	0.40
B.D. ( g/ccm min)	2.70	2.75	2.80	2.90	3.00	3.10	3.15	3.20	3.25	3.30
H2O (max)	0.50	0.50	0.50	0.50	0.50	0.50	0.50	0.50	0.50	0.50

Application of our calcined bauxite
1. Aluminium metallurgy
2. Precision casting / Investment casting:
3. Refractory: 
4. Ceramics industry
5. Aluminium silicate refractory fiber:
6. Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining performance.
7. Producing bauxite cement
8. Abrasive
9. Chemistry industry for all kinds of aluminium compound.