Method for producing ultra-fine calcination white bole with combination of dry and wet method
A technology of calcined kaolin and dry-wet combination, which is applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., can solve the problems of inability to guarantee the calcined whiteness of products, inability to solve product calcined agglomeration, poor stability and adaptability, etc., to achieve The effect of shortening the production process, broadening product performance, and reducing modification costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0022] Example one:
[0023] Kaolin from coal measures in Wuhai area of Inner Mongolia is selected as raw material. The raw material is ground into a powder of 600 mesh. After the particles are classified, the kaolin powder of 1250 mesh or more is directly calcined into a rotary kiln and becomes a product. The kaolin powder of 1250 mesh or less is processed in the following order:
[0024] a. Add dispersant, intercalation agent and brightener according to the weight ratio of kaolin powder:
[0025] Dispersant: Sodium hexametaphosphate, the addition amount is 2%;
[0026] Intercalation agent: urea and amine acetate are mixed in a weight ratio of 5:1, and the addition amount is 2%;
[0027] Brightener: potassium chloride, the addition amount is 2%;
[0028] Prepared into a slurry with a water content of 40%;
[0029] b. Grind for 10 minutes;
[0030] c. The slurry is dried and dispersed and sent to the rotary kiln for calcination, the calcination temperature is 950-960℃, and the c...
Example Embodiment
[0033] Embodiment two:
[0034] Kaolin from coal measures in Wuhai area of Inner Mongolia is selected as raw material. The raw material is ground into 6000 mesh powder. After the particles are classified, the kaolin powder above 1250 mesh is directly calcined into a rotary kiln and becomes a product. The kaolin powder below 1250 mesh is processed in the following order:
[0035] a. Add dispersant, intercalation agent and brightener according to the weight ratio of kaolin powder:
[0036] Dispersant sodium hexametaphosphate, the addition amount is 0.1%;
[0037] The intercalant urea and amine acetate are mixed in a weight ratio of 1:5, and the added amount is 0.1%;
[0038] Brightener: sodium chloride, the addition amount is 0.1%;
[0039] Prepared into a slurry with a water content of 60%;
[0040] b. Grind for 150 minutes;
[0041] c. The slurry is dried and dispersed and sent to the rotary kiln for calcination, the calcination temperature is 950-960℃, and the calcination time ...
Example Embodiment
[0044] Embodiment three:
[0045] Kaolin from coal measures in Wuhai area of Inner Mongolia is selected as raw material. The raw material is ground into a powder of 2000 mesh. After the particles are classified, the kaolin powder above 1250 mesh is directly calcined into a rotary kiln and becomes a product. The kaolin powder below 1250 mesh is processed in the following order:
[0046] a. Add according to the weight ratio of kaolin powder:
[0047] Dispersant sodium polyacrylate, the addition amount is 1%;
[0048] Prepared into a slurry with a water content of 50%;
[0049] b. Grind for 50 minutes;
[0050] c. The slurry is dried and dispersed and sent to the rotary kiln for calcination, the calcination temperature is 800℃, and the calcination time is 80 minutes;
[0051] d. The calcined kaolin is sent to the pulper and stirred with water to make a slurry with a water content of 40%; at the same time, 0.8% of the dispersant sodium polyacrylate and 2% of the surface modifier sil...
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap