ABSTRACT
Melt crystallization is a separation technique. It comprises the cooling crystallization of a material from a melt without using a solvent. It can be an alternative to distillation when the boiling points of the components in a melt are close together. Furthermore, melt crystallization has the potential of ultrapurification. For example, the feed contains 70-80% by weight of the desired material and the product has an assay of 99.99% by weight. To attain this purity, melt crystallization has to be repeated. The subject of melt crystallization is introduced in Sec. 7.2.
