A white powder, uniform in particle size, low in moisture, hardly soluble in acidic and alkaline solution, stable in chemical performance, and good crystal phase, also with good sintering performance. HP301ˇ«308 series high purity alumina are produced by various technology, which can be used in tri-group fluorescent powder, long-persistence fluorescent powder, synthetic cut stone, high voltage sodium lamp, glass additive, electronic porcelain and catalyst carries etc. It could be used perfectly with its good performances.
HP301 is applied exclusively in various electronic porcelain and ceramics, such as electronic substrates and high purity alumina powder used in high purity and strength ceramics. The end product is of smooth surface and hot efficiency because of the small and uniform particle size of primary powder.
HP302 is applied exclusively in long-persistence fluorescent powder and coatings. The after-glow and brightness index of the luminous powder are higher because of the perfect physical performance of HP302.
HP303 is applied exclusively in tri-group fluorescent powder. With its small and uniform particle size and good fluidity, it can satisfy the relative color index as blue and green one, in tri-group fluorescent powder.
HP304is used in synthetic cut stone. It has good fluidity, uniform spherical and elliptic shape and high purity.
HP305 is used in high voltage sodium lamp. It has narrow particle size distribution, good sintering performance and high purity.
HP306 is applied exclusively in catalyst carrier. It extends the service life of high purity powder with its good heat stability and activity.
HP307 is used in glass and special glass additives. Its little impurities, such as Fe and transition chromogenic elements can give the related glass product better usage.
HP308 is commonly low-end high purity alumina, with different levers from 99.5-99.9%. as good function price ratio, it can meet the specific requirement with low cost.
HP301ˇ«308 chemical and physical properties of High purity Alumina
| Item
Brand |
Al2O3
(%)
ˇÝ |
ImpuritiesˇŰ(ppm) |
¦Á-Al2O3
(%) |
Particle size
D50¦Ěm |
BET
(m2/g) |
L.O.I.
(%) |
Si |
Fe |
Na |
Ca |
Mg |
Cr |
Mn |
V |
Ti |
Ni |
Pb |
Cu |
Co |
HP301 |
99.99 |
20 |
20 |
20 |
20 |
10 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
95 |
0.5ˇ«10
(to order) |
2ˇ«6 |
0.15 |
HP302 |
99.99 |
20 |
10 |
20 |
10 |
10 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
95 |
0.5ˇ«0.6 |
4ˇ«12 |
0.15 |
HP303 |
99.99 |
20 |
10 |
20 |
10 |
10 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
95 |
0.5ˇ«25 |
4ˇ«7 |
0.15 |
HP304 |
99.99 |
20 |
10 |
10 |
10 |
5 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
89ˇ«95 |
0.5ˇ«15 |
6ˇ«24 |
0.2 |
HP305 |
99.99 |
20 |
10 |
20 |
10 |
10 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
89ˇ«95 |
0.5ˇ«10 |
6ˇ«24 |
0.2 |
HP306 |
99.99 |
50 |
10 |
20 |
20 |
10 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
90 |
0.5ˇ«5 |
6ˇ«24 |
0.2 |
HP307 |
99.99 |
20 |
5 |
20 |
20 |
10 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
90 |
0.5ˇ«10 |
6ˇ«24 |
0.2 |
HP308 |
99ˇ«99.9 |
80 |
60 |
400 |
100 |
50 |
|
|
|
|
|
|
|
|
98 |
0.5ˇ«80 |
6ˇ«10 |
0.15 |
Note: Products of various chemical and physical performances could be produced to order
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