Special Pseudo Boehmite

P-DF-10
P-DF-10 is a middle density, large pore size pseudo-boehmite product, with the character of high purity, large pore volume, uniform pore size distribution and good acid-soluble.
For the large pore volume, specific surface area, good thermal stability, P-DF-10 has good formability, high strength and good wear resistance characteristics, which is widely used in hydrocracking, hydrotreating, hydrogenation refining catalyst
(%) | Chemical composition | |
Fe2O3 | ≤0.04 | |
Na2O | ≤0.1 | |
SO42- | ≤1.0 | |
LOI (%) | ≤30 | |
Physical character | ||
(%,XRD) | ≤3 | |
pore volum(ml/g,BET) | 0.9-1.1 | |
BET(m2/g,BET) | ≥280 | |
Phase transformation | ||
350-450℃ | P-DF-10 → | γ-Al2O3 |
800-900℃ | γ-Al2O3 → | θ-Al2O3 |
1100-1600℃ | θ-Al2O3 → | α-Al2O3 |
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P-DF-10 X | P-DF-10 SEM |
H-B-90
H-B-90 Is a β-Al (OH) 3 powder produced by high liquidity special process. It’s insoluble in acid. As catalyst components, H-B-90 has the unique properties of lower the acid active center density.
After the molding process, it can be made into many shapes such as bar, ball and Special-shaped. H-B-90 is widely used in high acid activity center catalyst field.
(%)Chemical composition | |
Fe2O3 | <0.06 |
Na2O | <0.30 |
SiO2 | <0.15 |
LOI(%) | 33-38 |
Physical character | |
D50(μm) | 20-30 |
BET(m2/g)BET | >350 |
bulk density(g/cm3)Apparent density | ≥0.56 |
β-Al(OH)3 (%,XRD) | >90 |
α-Al2O3•3H2O (%,XRD) | ≤5 |
Phase transformation | |
320℃ H-B-90 → | η-Al2O3 |
900℃ η-Al2O3 → | θ-Al2O3 |
1150℃ θ-Al2O3 → | α-Al2O3 |
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H-B-90 X | H-B-90 SEM |
B-D-2
Boehmite is an important precursor for the preparation of γ-Al2O3 and α–Al2O3, Mainly used in catalyst and its carrier materials, coating material, porous membranes and soft abrasive, high temperature ceramics etc.
(%)chemical composition | |
Fe2O3 | ≤0.04 |
Na2O | ≤0.2 |
moisture | ≤0.5 |
physical character | |
LOI (%) | ≤17 |
D50(μm) | 2.0±0.5 |
BET(m2/g)BET | ≥70 |
bulk density(g/cm3)Apparent density | 0.3-0.5 |
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B-D-2 X | B-D-2 SEM |
A-AS-HC-GSA
A-AS-HC-GSA is a white powder on appearance, which is soluble in acid and alkali solution. It has the advantage of good forming performance, strong adhesion, bulk density of small, low sulfide containing.
A-AS-HC-GSA is the material of Petroleum refining catalyst, with high activity for hydrogenation cracking catalyst, can also be used for hydrotreating catalyst.
(%)Chemical composition |
Ca <0.15 |
Fe2O3 <0.1 |
Na2O <0.30 |
Silicon aluminum ratio custom-made |
Physical character |
BET(m2/g) BET 250-400 |
bulk density(g/cm3)Apparent density ≥0.56 |
L.O.I (%) 30 |
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