Method for preparing lithium carbonate superfine powder through solvating-out and reaction crystallization
A technology of reaction crystallization and ultra-fine powder, which is applied in the direction of lithium carbonate; High recovery rate and excellent product effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0025] Example 1
[0026] This example is used to illustrate the method for preparing ultrafine lithium carbonate powder by the elution-reactive crystallization method provided by the present invention.
[0027] First configure 50ml of LiCl(1~16mol / L)-ethanol-water ternary system solution and Na 2 CO 3 Solution (1~4mol / L) 50ml. Then, the two reaction materials are rapidly mixed and reacted in a 150ml reaction crystallizer under ultrasonic action and 5 to 90°C. Due to the anti-solvent effect of ethanol, lithium carbonate can produce very high supersaturation and produce a lot of fine crystals. Moreover, ethanol itself is also a dispersant, and there is no need to introduce more other dispersants. The material liquid is filtered and dried to obtain a crystalline product. After the filtrate is rectified, ethanol can be separated and recycled. Experimental results show that this method can reduce the secondary particle size of lithium carbonate to about 2.μm, while the average prim...
Example Embodiment
[0028] Example 2
[0029] This example is used to illustrate the method for preparing ultrafine lithium carbonate powder by the elution-reactive crystallization method provided by the present invention.
[0030] In the 150ml reaction crystallizer, add LiHCO 3 Solution (0.5~1.5mol / L) 50ml, control LiHCO 3 When the temperature of the solution is 5~60℃, the ultrasonic device is introduced and turned on. LiHCO into the reaction crystallizer 3 Add ethanol to the solution, the amount of ethanol added is 5-85%. After adding the eluent, crystal precipitation appeared quickly, and a lot of bubbles formed in the solution, indicating that the addition of ethanol promotes the crystallization of lithium carbonate, and the crystallization process of lithium carbonate also promotes LiHCO 3 Rapid decomposition, this process can be called elution-decomposition-reaction crystallization process.
[0031] The feed liquid is filtered, and the filter cake solid is dried to obtain submicron lithium carbon...
PUM
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