Method Fr manufacturing ultramicro alumina powder
A technology of fine alumina and alumina, which is applied in the methods of granulating raw materials, chemical instruments and methods, alumina/aluminum hydroxide, etc., can solve the problems of difficult industrialization promotion, high production cost, long process flow, etc. Achieve the effect of small investment, low production cost and short process flow
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0011] a. Ingredients: use γ-alumina as the base material, prepare 3% mineralizer according to the weight of the base material, and 3% dispersant (such as sodium acrylate, etc.) as auxiliary materials; there is no special requirement for the mineralizer. The dispersant is mainly used to reduce the roasting temperature, and it can be used without it. The dispersant is added with 0.5% rare earth compound (such as lanthanum oxide, cerium oxide, etc.) by weight of the dispersant.
[0012] b.: Mix γ-alumina and mineralizer evenly, and after conventional roasting, add dispersant to obtain product B.
[0013] c. Grinding: finely grind product B first, and then ultra-finely grind it into particle size d 50 If the powder is no more than 1.5μm, the finished product of α-alumina ultrafine powder can be obtained.
Embodiment 2
[0015] a. Ingredients: α-alumina is used as the base material, and 5% dispersant is prepared according to the weight of the base material as an auxiliary material; 4% rare earth compound of dispersant weight is added to the dispersant; α-alumina and dispersant A product is obtained after mixing;
[0016] b. Grinding: finely grind the product A first, and then ultra-finely grind it to a particle size d 50 If the powder is no more than 1.5μm, the finished product of α-alumina ultrafine powder can be obtained.
Embodiment 3
[0017] Example 3. A method for producing fine alumina powder; it is characterized in that, it is carried out according to the following steps;
[0018] a, batching: take gamma-alumina as the base material, prepare 6% dispersant according to the weight of the base material as an auxiliary material; add 8% rare earth compound of dispersant weight in the dispersant; mix gamma-alumina and dispersant A product is obtained after mixing;
[0019] b. Grinding: finely grind the product A first, and then ultra-finely grind it to a particle size d 50 If the powder is no more than 1.5μm, the finished product of γ-alumina ultrafine powder can be obtained.
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com