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Refined adsorbent aluminum polysilicate (Synthetic aluminum Poysilicum), molecular formula: xAl2O3·ySiO2·nH2O. The appearance is a kind of white porous spherical body particle or powder, has the very good flowability, it belongs to the solid acid compound. As a hard foam polyether refined absorbent, it shows excellent adsorption and decolorization performance: adsorption of potassium and sodium ions from organic chemicals. And play a role in filtering. Absorb water from the air.
No. |
Indicator Name |
Superior Product |
First Class Product |
1 |
SiO2 % |
75±5 |
70±5 |
2 |
Al2O3 % |
16±2 |
15±2 |
3 |
Cl - % ≦ |
0.1 |
0.1 |
4 |
SO42- % ≦ |
0.5 |
0.5 |
5 |
Loss on drying % ≦ |
8.0 |
11 |
6 |
PH in water5% |
5-8 |
5-8 |
7 |
App. volume(ml/10g) |
32±4 |
32±4 |
Product application: the crude polyether polyol was put into the neutralization kettle, a small amount of pure water was added at a certain temperature, the neutralization reaction was carried out after stirring, the PH value of the neutralization solution was controlled within the index (6.5 - 7.0), then 0.1 - 0.3% aluminum polysilicate adsorbents were added at the same temperature, the vacuum distillation and dehydration were carried out for 1.5~2 h, and the filtration cycle was carried out when the water was removed to the prescribed requirements. The K+ (Na+) ion content of the circulating liquid is analyzed and filtered immediately when it meets the requirements. The filter solution is a clear and transparent polyether.
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