Synonyms
boehmite alumina, AlO(OH), colloidal boehmite, sols, boehmite dispersions, nano-sized boehmite, dispersible boehmite, aluminum oxide
Dispersible boehmites are used in applications such as sol-gel ceramics, binder for catalysis, refractory materials, rheology control, surface frictionising and paint detackification.
Other more recently developed uses for boehmite alumina powders include surface coating as well as polymer additives.
Boehmite alumina powders, which are nano-sized in the dispersed phase, exhibit a unique combination of purity, consistency, and dispersibility that make them excellent materials for use in demanding colloidal applications. Traditionally dispersible boehmites is used in applications such as sol-gel ceramics, binder for catalysis, refractory materials, rheology control, surface frictionising and paint detackification. Other more recently developed uses for these boehmite alumina powders include surface coating as well as polymer additives.
The specification of boehmite:
Item No. | Chemical Composition % | D50, um | Surface area m2/g | Bulk density g/cm3 | |||
Fe2O3 | Na2O | H2O | Ignition | ||||
B-R-2 | ≤0.02 | ≤0.03 | ≤0.5 | ≤17 | 2.0±0.5 | ≥70 | 0.3-0.5 |
Item | Unit | Low sodium Pseudoboehmite | Common Pseudoboehmite | Macroporous pseudo boehmite | |||
XR-DF-03-LS(NH-P-DF) | NH-P-D | NH-P-DH | NH-P-DF-1 | NH-P-DF-2 | NH-P-DF-3 | ||
Fe2O3 | % | ≤0.01 | ≤0.01 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
Na2O | % | ≤0.1 | ≤0.30 | ≤0.3 | ≤0.1 | ≤0.1 | ≤0.1 |
SiO2 | % | ≤0.2 | ≤0.2 | ≤0.2 | 1.0-2.0 | 1.0-2.0 | 1.0-2.0 |
Particle size | um | 3-20 | 3-20 | 3-20 | 3-20 | 3-20 | 3-20 |
Surface area | ㎡/g | ≥250 | ≥250 | ≥250 | ≥250 | ≥250 | ≥250 |
Pore Volume | ml/g | 0.4-0.5 | 0.4-0.5 | 0.5-0.8 | 0.85-0.95 | 0.9-1.0 | 0.9-1.2 |
Dry basis | % | ≥65 | ≥65 | ≥65 | ≥70 | ≥70 | ≥70 |
3 H2O | % | ≤1 | ≤1 |
| ≤3 | ≤3 | ≤3 |
Peptizing index | % | ≥97 | ≥97 | ≥70 | —— | ||
Item | Chemical Composition，％ | Physical Property | ||||||
SiO2 | Fe2O3 | Na2O | LOI | 3.H2O | Pore volume | Surface area | Bulk density | |
％ | ml/g | m2/g | g/ml | |||||
NH-P-DF-1 | 1.0～2.0 | 0.03 | 0.1 | 24 | ≤3 | 0.85-0.95 | 280 | — |
NH-P-DF-2- | 1.0～2.0 | 0.03 | 0.1 | 24 | ≤3 | 0.9-1.0 | 300 | — |
NH-P-DF-3 | 1.0～2.0 | 0.03 | 0.1 | 24 | ≤3 | 0.9-1.2 | 320 | — |
DH-QP-DFH-3 | 0.2 | 0.04 | 0.1 | 24 | ≤3 | 0.9～1.2 | 280 | — |
DH-QP-DFH-2 | 0.2 | 0.04 | 0.1 | 24 | ≤3 | 0.7～0.9 | 250 | — |
DC-P-DF-1 | 0.2 | 0.04 | 0.1 | 24 | ≤3 | 0.5～0.7 | 250 | — |
Packing:
25kg bags, poly-lined fiber drums and 1000kg bulk bags
