Rare earth porcelain sand filtering material |
| Application |
 Used in the treatment of waste water, tap-waterrecycling
water and city sewage of medicine, chemical industry, petroleum,
power, plating, papermaking and wine industry;
used as filtering
material for boiler with higher SiO2 requirement;
used as pre-treatment filtering material of ion exchange
and reverse osmosis equipment, the the support layer for resin
and Activated carbon adsorption
|
 Technical
indexes |
Ingredients
| Component |
AL2O3 |
SiO2 |
Fe2O3 |
MgO |
CaO |
K2O+Na2O
|
Assay(%)
|
22-24 |
68-74 |
<1.0 |
<0.7 |
<0.5 |
<4 |
|
Physical properties
Item |
Value |
Item |
Value |
| Grainsize, mm |
0.5 3.0 |
Water throughput, t/m2.h |
2 3 |
| Compressive strength,
N/p |
30150 |
Air throughput, m3/m2.h |
1500 2000 |
| Attrition value, % |
<0.5 |
Bulk density, g/ml |
1.1 1.5 |
| Acid resistance, % |
>98 |
Void ratio, % |
40 45 |
| Alkali resistance, % |
>92 |
Application temperature,  |
-80 1200 |
|
| |
|
|
