Pseudo-Boehmite
High Purity Alumina Series Products
Pseudo-Boehmite
Pseudo-Boehmite, also known as aluminum hydroxide gel and alumina monohydrate. The molecular formula is Al2O3•H2O (1.2~2.2), with the performance of non-toxic, odorless, powder (dry), high purity of crystal phase, good peptization performance and strong adhesion. According to different production processes, different grades of Pseudo-Boehmite can be used for different applications. Using high purity aluminum hydroxide and ion-exchange membrane alkali as the basic raw materials, after carbonation, it adopts different processes to produce a series of large-pored pseudo-boehmite products.
This series of products has very stable quality and excellent physical and chemical properties, widely used in petroleum distillate hydrogenation catalysts, cracking (gasoline hydrotreating) catalysts and chemical catalysts.
| Typical Properties | Units | PB-DKH | PB-DKM | PB-DKL | PB-ZK | PB-SB | PB-LJ |
|---|---|---|---|---|---|---|---|
|
Pore Volume |
ml/g |
≥1.0 |
≥1.0 |
≥1.0 |
≥0.5 |
≥0.5 |
0.6-0.8 |
|
BET Surface Area |
m2/g |
≥300 |
≥290 |
260-280 |
≥280 |
≥260 |
260-280 |
|
Dry Basis |
% |
70-72 |
70-72 |
70-72 |
70-72 |
70-72 |
70-72 |
|
Peptization index |
% |
10-20 |
20-25 |
|
60-70 |
≥90 |
60-70 |
|
Impurity ≤ (by ICP-OES) |
|
|
|
|
|
||
|
Na2O |
% |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
|
Fe2O3 |
% |
≤0.01 |
≤0.01 |
≤0.01 |
≤0.01 |
≤0.01 |
≤0.01 |
|
SiO2 |
% |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.02 |