-200mesh Refractory Rotary Kiln Bauxite / Calcined Alumina Bauxite with 80% Al2O3

• 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

-200mesh Refractory Rotary Kiln Bauxite / Calcined Alumina Bauxite With 80% Al2O3

Calcined bauxite is produced by sintering/calcining with natural bauxite ore of low iron, low alkali  at temperatures of 1600 - 1800 degree Celsius in the rotary kiln or round kiln through pre-heationg, calcination, cooling and other processes. During Calcining, it can be removed impurities and improving the content of alumina. Refractory grade bauxite has high refractoriness, good mechanical strength and moderate slag resistance. Therefore calcined bauxite is one of the most important raw materials for the production of shaped and unshaped refractories for the steel industry, foundries, glass and cement plants. 

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
Raw material for High Alumina brick;
Raw material for Refractory castable;
Raw material for Ramming mix;
Raw material for Nozzle;
Raw material for slide gate block;
Raw material for Refractory motar;