High Mechanical Strength High Pure Alumina Hpa High Purity Alumina for Fluorescent Light Bulb Powder
4N HPA (High purity alumina), purity>99.99%, is White powder, uniform particle size, easy to disperse, stable chemical properties. Especially suitable for shaped products, plastic, repair material, spray material, daub material and other amorphous refractory.
Product Introduction
'Quality initially, Honesty as base, Sincere company and mutual profit' is our idea, in order to create repeatedly and pursue the excellence for Alumina Lining Brick for pipeline, alumina catalyst, chemical drying adsorbent. We also welcome the vast number of people of insight and ambitious young people to join this vigorous, magnificent family. Unity is the basic guiding ideology for the good development of an enterprise, and we always abide by it. In terms of development, the company will closely follow national policies, adapt to environmental changes, carry out technological innovation, adhere to the development concept of becoming stronger and larger, and continue to develop new markets. Innovation is regarded as our most precious fine tradition and cultural gene, and we have been adhering to the development of innovative ideas.
Product Introduction:
4N HPA (High Purity Alumina) is a white powder with uniform particle size, easy dispersion, stable chemical properties, moderate high temperature shrinkage, good sintering performance, high conversion rate and low sodium content. High purity alumina is the basic raw material for various high-end products, such as sapphire crystal, advanced ceramics, polishing slurry, lithium battery separator and other products.
The products are of reliable quality, with high melting point, good thermal stability, high hardness, good wear resistance, high mechanical strength, good electrical insulation, corrosion resistance, etc. We can provide 4N HPA with different particle size and crystalline structure by controlling the production process according to different applications and requirements.
Product Specification:
Specification | AL2O3 | Surface Area | D50 | Impurity content（PPM）≤ | |||||||||||
≥% | (m2/g) | d50（μm） | |||||||||||||
Na | Fe | Si | Cu | Mg | Ti | Cr | Mn | Zn | Pb | Ni | Ca | ||||
AM-FP-001 | ≥99.99 | 4～10 | 1-4 | ≤10 | ≤10 | ≤10 | ≤3 | ≤5 | ≤3 | ≤3 | ≤3 | ≤3 | ≤1 | ≤4 | ≤5 |
AM-FP-002 | ≥99.99 | 4～10 | 5-8 | ≤10 | ≤10 | ≤10 | ≤2 | ≤5 | ≤3 | ≤3 | ≤3 | ≤3 | － | ≤4 | ≤5 |
AM-FP-003 | ≥99.99 | 4～10 | 30±2 | ≤10 | ≤10 | ≤10 | － | ≤5 | ≤3 | ≤3 | ≤3 | － | － | － | ≤5 |
AM-FP-004 | ≥99.99 | 4～10 | 35±2 | ≤10 | ≤10 | ≤10 | － | ≤5 | ≤3 | ≤3 | ≤3 | － | － | － | ≤5 |
Characteristic of 4N HPA:
1) High purity and low chemical composition.
2) High dispersion.
3) Controllable particle size and crystal form.
4) Chemical Resistance.
Application:
High purity alumina has a melting point of 2050℃ and is mainly used for LED artificial sapphire crystals, advanced ceramics, phosphors, polishing slurry and some high performance materials. As raw materials for sapphire crystals, we can provide powder, granule, block or column according to different requirements.
Production Process:
4N HPA is produced by the Bayer process. The Bayer process is mainly divided into three stages: dissolution, decomposition and calcination. It is mainly composed of crushing and wet grinding, bauxite dissolution, red mud separation and washing, sodium aluminate solution plus seed decomposition, and aluminum decomposition mother liquor. Evaporation, sodium carbonate caustic recovery in alumina production, aluminum hydroxide calcination and other processes.
Packing&Storage:
We usually use 25kg kraft bags packed and 40 bags packed on a 1.1m*1.1m pallets and with wrapping film. We also can pack the goods according to customers requirements, including the materials and size of bags and pallets.
We take 'Integrity Enterprise, Professional Technology, Technological Innovation' as the development idea, and strive to contribute more to the High Mechanical Strength High Pure Alumina Hpa High Purity Alumina for Fluorescent Light Bulb Powder industry. We accurately study and judge the development trend of technology and market, strengthen the tracking research of key technologies and improve the scientificity and accuracy of strategic planning. We adhere to multi-channel operation, continuous brand innovation, always pursuit of excellence, to create the industry's 'best supplier'.
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