(under the class definition) Processes directed to heating the distilland under pressure high enough to prevent ebullition and the heated distilland is then introduced into a zone of lesser pressure resulting in the volatilizing of at least a portion of the distilland.
SEE OR SEARCH CLASS
159, Concentrating Evaporators,
2, for a flash evaporator.
202, Distillation: Apparatus,
177, for a separatory still with a preheater. 208, Mineral Oils: Processes and Products,
352, and 361 for a process of separating mineral oil 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.
