WHA-409 Gel nhôm chịu nhiệt
Contact Info
- Địa chỉ:Số 28 đường Haining, Khu phát triển kinh tế Shuyang, tỉnh Giang Tô, Mã bưu chính:
- Liên hệ: Manager Yu
- ĐT:0527-83968080 83968070
- Email:sales@chinaalum.com
Sản phẩm khác
Temperature resistant alumina gelWHA-409、WHA-410
This product is a kind of fine pore aluminum oxide gel,white powder.It is mainly used as gel of catalyst carrier coating film for the purification of auto-mobile exhaust gas.It has the advantages of no peel off,no falling off.At the same time,WHA-409 contains additives for heat resistance,so it still has large specific surface area at very high temperature.Its performance is equivalent to the level of SB powder made in Germany and the gel used for catalyst carrier for the purification of auto-mobile exhaust gas made in USA.Some indexes are even superior than them.It can also be used as a surface coating for nuclear reactors,with excellent electrical insulation,chemical stability,as well as temperature resistance and radiation resistance.
1.Chemical formula:Al₂O₃·nH₂O(n=1.2~1.8)
2.Crystalline phase:Pseudo boehmite
3.Main technical indexes:
|
Indexes |
Unit |
WHA-409 |
WHA-410 |
|
Al₂O₃ |
% |
≥75 |
≥75 |
|
Fe₂O₃ |
% |
≤0.07 |
≤0.07 |
|
Na₂O |
% |
≤0.07 |
≤0.07 |
|
Heat resistant additive |
% |
≥3.0 |
0 |
|
Pore volume(550℃,3h) |
cm³/g |
≥0.38 |
≥0.38 |
|
Specific surface area(550°C,3h) |
m²g |
≥220 |
≥200 |
|
Pore distribution 3~8nm(550℃,3h) |
% |
≥80 |
≥80 |
|
Loss of ignition |
% |
≤23 |
≤23 |
|
Y-Al₂O₃(900℃2h) |
% |
≥98 |
≥98 |
|
Pore volume(900℃,3h) |
cm³g |
≥0.46 |
≥0.45 |
|
Specific surface area(900℃,3h) |
m²/g |
≥220 |
≥200 |
|
Pore distribution 10~20nm(900℃,3h) |
% |
≥80 |
≥80 |
|
Particle size |
mm |
0.01~0.05 |
0.01~0.05 |
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