Crystallizers facilitate the crystallization process, separating liquids into solids. Designed for various industries, they ensure high-purity product output with minimal energy input. That means crystallizers are highly energy efficient. There are various types of crystallizers available in the market for industrial use. Let’s have a look at some of the popular industrial crystallizers.
Evaporative crystallizers are employed for evaporative crystallization. So this involves the evaporation of the solvent, resulting in an elevated concentration of the solution. Due to the increase in concentration, the supersaturation of the solution happens and the process of nucleation starts. As further the nucleation happens, the nuclei grow and change to the crystals. So industrial crystallization processes commonly employ two primary types of evaporative crystallizers. Draft tube crystallizers and Submerge circulating crystallizers.
The Oslo crystallizer process, also known as the fluidized bed, involves a fluidized bed crystallization technique. So in the process of Oslo crystallization, at the bottom of the Oslo crystallizer, the crystals are fluidized or you can say converts in a fluid form from the solid form. The process of fluidization happens with the help of an external axial pump. The pump consists of the mother liquor in the upper part. The Oslo crystallization technology incorporates a self-cleaning mechanism within its operating principle, reducing the need for frequent cleaning. While the process of the Oslo crystallizers includes the central tube clogging with the help of the precipitation process and supersaturation without crystals.
Vacuum crystallization is employed in both continuous and batch processes, with batch vacuum crystallizer equipment being more prevalent in industrial applications. These crystallizers play a key role in the distillation of materials, allowing the growth of distilled materials on the walls of continuous crystallization equipment. The maintenance of vacuum within the crystallizer is facilitated by a condenser booster.
The cooling crystallization happens with the help of the transferring of indirect heat and under the vacuum. The process of cooling crystallization is based on the dependency of the solubility temperature. In the process of cooling crystallization, some of the solutions evaporate and then cooled down. The cooling down of the solution occurs through the reduced pressure in equilibrium. As a result, a little bit of the solvent shines off the concealed heat following the temperature lowering of the solution. The crystallization in the cooling crystallizer happens because of the temperature change of the solution.
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