- Location:Beijing Kaibiyuan Trading Co., Ltd.
- Add:E6A, Huatingjiayuan, Jianxiang Bridge East, Chaoyang District, Beijing, China
- Contact:Mr Liu
- Postal Code: 100029
- Tel:+86-10-82850317
- Fax:+86-10-82849586
- Mobile:+86-13011198217
- E-mail:
tradelhg@kby010.com - MSN:
andyhai008@hotmail.com - Alibaba Show Room:
http://hl010.en.alibaba.com
Rare earth porcelain sand filter medium
Rare earth porcelain sand filter medium
It was widely used in filtration medium and layer in single or double layer unit, multi-medium filtration equipment, ion exchange ware, all kinds of the industrial and city process water and etc.
Product Description
It was widely used in filtration medium and layer in single or double layer unit, multi-medium filtration equipment, ion exchange ware, all kinds of the industrial and city process water and etc. Besides the normal property of porcelain sand filter, rare earth porcelain sand filter has the better pollutant entrapment ability and chemical stability, for rare earth is a kind of material, which has better strength and higher corrosion resistance. Therefore, rare earth porcelain sand can be especially used in filtration medium and high-efficiency filtration medium.
1. Chemical composition:
|
Composition |
SiO 2 |
Fe 2 O 3 |
MgO |
Al 2 O 3 |
CaO |
K 2 O+ Na 2 O |
Rare earth element |
|
Content(%) |
68-74 |
< 0.1 |
< 0.7 |
18-24 |
0.5 |
4 |
tittle |
Remarks: We make the production in terms of technical requirements from the customer.
2. Physical Features:
|
Item |
Index |
Remarks |
|
Acid resistance |
99.5% |
Dipping in 30% hydrochloric acid & 50% Sulfuric acid for two weeks |
|
Alkaline resistance |
82.5% |
Soaked in lye for two weeks |
|
Compressive strength |
2800 -3500 kg /cm² |
Los Angeles method |
|
Hardness |
Grade 7 |
Mohs |
|
Wear resistance |
0.15-0.2% |
|
|
Heat resistance |
> 1000 ° C |
|
|
Thermal conductivity |
4.415 KJ/MH ° C |
|
|
Specific heat |
628-837 J/KG ° |
|
|
Specific gravity |
2.38 g /cm 3 |
|
|
Heaping density |
1.98 g /cm 3 |
|
|
Water absorption |
0.5-22% |
|
|
Breaking rate |
0.75% |
|
|
Void |
28.6% |
Heaping method |