Zhengzhou Sinocean Industrial Limited
Zhengzhou Sinocean Industrial Limited
[
Henan,
China (Mainland) ]
Henan, China (Mainland)
sinocean
Abrasive Grains
Metric Ton
20
USD 300.000 - 400.000
qingdao
7 days
jumbo bag
Yes
200000 / Year
T/T
1. Abrasive grade calcined bauxite has an Al2O3 content of 80-88% and a maximum silica content of 5%. The ratio of iron to silica should not exceed 3:1. The titania content, important in controlling the crystal structure and the hardness of the alumina grain, must be in the range of 2-4%. When it comes to calcining, refractory grade bauxite is usually fired at temperatures in the range of 1400-1800 C and abrasive grade at 1100C.
Some of this calcined bauxite is used directly as a fairy cheap abrasive product, but by far the largest amount is used as feedstock for the manufacturer of brown fused alumina (BFA) used in refractories.
|
Item name |
SNA-83 |
SNA-85 |
SNA-87 |
|
Al2O3 |
83.0%min |
85.0%min |
87.0%min |
|
SiO2 |
7.5%-9.0% |
5.6%-7.5% |
3.0%-5.6% |
|
Fe2O3 |
2.5%max |
2.0%max |
1.6%max |
|
TiO2 |
4.2%max |
4.0%max |
3.6%max |
|
CaO |
0.8%max |
0.6%max |
0.5%max |
|
Na2O+K2O |
0.5%max |
0.5%max |
0.5%max |
|
CaO+MgO |
1.0%max |
0.8%max |
0.8%max |
|
Moisture |
0.05%max |
0.04%max |
0.03%max |
|
LOI |
0.5%max |
0.4%max |
0.4%max |
|
Bulk density |
2.70gm/cc |
2.75gm/cc |
2.80gm/cc |
|
Grain size |
0-50mm |
0-50mm |
0-50mm |
|
Package |
Jumbo bag |
Jumbo bag |
Jumbo bag |
|
Shipment |
By sea |
By sea |
By sea |
