(under subclass 350) Processes wherein the distilland is heated under pressure high enough to prevent ebullition and the heated distilland is then introduced into a zone of lesser pressure resulting in the volatilization of at least a portion of the distilland.
(1) Note. In flash vaporization, the distilland is usually heated at a pressure above atmospheric and released into a zone having a pressure less than atmospheric.
SEE OR SEARCH THIS CLASS, SUBCLASS:
361, for flash vaporization processes in nonrectification distillation processes.
SEE OR SEARCH CLASS
203, Distillation: Processes, Separatory, 88, for a flash distillation process.
