.~ By cooling of liquid to obtain solid, e.g., crystallization, etc. {4}
815
.~.~ With dissolving or plural serial crystallizations
DEFINITION
Classification: 585/815
With dissolving or plural serial crystallizations:
(under subclass 812) Subject matter wherein the starting mixture or a solid produced in the process is dissolved in a liquid or in which a component of a liquid mixture is chilled to form a solid, the solid is liquefied and the resulting liquid is again chilled to form a solid component.
SEE OR SEARCH THIS CLASS, SUBCLASS:
814, for a process in which the second crystallization is applied to the mother liquor obtained from the first crystallization.