Forced Circulation Crystallizers
This approach to crystallization can be effective regardless of the solubility curve. However, many other factors, both economic and physical, must be considered in determining the ultimate choice. The submerged inlet vapor body offers the following advantages over the standard elbow inlet design.
- Larger average crystal size
- Narrows the crystal size distribution curve
- Reduction in circulation pump horse power requirement
Vacuum or Surface Cooled Crystallizers
Generally, these types of crystallizers can be considered for materials having a solubility curve with a steep slope. The crystal size desired and the temperature level and nature of the solute will usually determine whether a vacuum- or surface-cooled unit is indicated.
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