一种动态结晶工艺温度控制系统及方法
By using a dynamic crystallization process temperature control system, combined with gradient cooling and ultrasonic pulses, uniform nucleation and efficient growth of lithium hexafluorophosphate crystals were achieved, solving the problems of poor crystal quality and equipment scaling in existing technologies, and improving production efficiency and crystal quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG STARRY PHARMA
- Filing Date
- 2026-04-03
- Publication Date
- 2026-07-17
AI Technical Summary
The existing crystallization process for lithium hexafluorophosphate suffers from poor crystal quality, poor batch-to-batch stability, and equipment scaling problems. It cannot respond in real time to changes in the nucleation state inside the feed liquid, resulting in incomplete nucleation or secondary breakage of crystal nuclei.
A dynamic crystallization process temperature control system is adopted. By combining gradient cooling and ultrasonic pulses, the temperature of the feed solution and the nucleation state are monitored in real time, and the nucleation process is precisely controlled. This includes gradient cooling before the feed solution enters the metastable region, applying ultrasonic pulses at preset time points to induce nucleation, and then performing precise crystal growth control.
This method achieves uniform generation of crystal nuclei in the liquid phase of the material, ensuring the concentration and high quality of crystal particle size distribution, improving crystal quality and production efficiency, and reducing equipment maintenance costs.
Smart Images
Figure CN121944576B_ABST