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Principle of frozen crystallization
Freeze crystallization is a process of separating different liquid components by reducing the temperature to supersaturate the liquid and precipitate crystals. Crystal suspension and particle classification in the crystallizer are typical characteristics of OSLO continuous crystallizer. Oslo crystallizer can achieve very low nucleation rate, and the crystal grows continuously in suspension state, and the product with large particle size can be obtained.
Because the full name of frozen crystallization is cooling hot saturated solution crystallization method, it is referred to as "cooling hot saturated solution method" or "cooling crystallization method" for short. The principle of cooling crystallization is to heat the solution first and evaporate the solvent into a saturated solution. At this time, when the temperature of the hot saturated solution decreases, the solute whose solubility changes greatly with the temperature will precipitate crystals, which is called cooling crystallization.
The above contents refer to Baidu Encyclopedia-Frozen Crystallization.