(under subclass 347) 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:
352, for processes of rectifying mineral oils including flash vaporization.
SEE OR SEARCH CLASS
203, Distillation: Processes, Separatory,
88, for a separatory distillation process of heating the distilland under pressure high enough to prevent ebullition and the distilland is then introduced into a zone of lesser pressure.
