Cooling crystallization is suitable for substances whose solubility increases with increasing of temperature. It causes the solute to precipite by lowering the solution temperature. Generally, the higher the temperature of the solution, the greater the mass of the solute that the solvent can dissolve, and lowering the temperature will make the solute to become into a solid. The cooling crystallizer is a continuous crystallizer with mother liquor circulation, which are mainly DTB and OSLO. The crystallizer is respectively provided with a crystal growth area and a supersaturation generation area. Through this design, the growth rate of crystal nuclei is low, and the crystals continue to grow in a suspended state. This kind of crystallizer has the characteristics of high purity, large and uniform particles.
Key point of the design：

Crystallization rate

Crystallization temperature

Particle requirements

Solubility of materials to be processed, etc

Industry Applied：

New energy, treatment of battery recycling wastewater, lithium extraction industry 

Pharmaceuticals

High salt wastewater

Chemical industry

Pesticides industry

Food and beverage industry, etc

Selection of crystallizers ：