.~ Including regeneration, purification, recovery or separation of agent used {3}
12
.~.~ By distilling, or liquefying vapors of, used agent
DEFINITION
Classification: 134/12
(under subclass 10) Processes which include either or both (1) distilling the used agent, or (2) liquefying vapors arising from a liquid agent.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11, for processes where, in addition to treatment of a used agent including distillation thereof and/or condensation of evolved vapors, there is also condensation or absorption of the vapors on the work. This subclass (11) also has processes which evolve liquefying evolved vapors which would otherwise escape and be lost.
31, for processes where the only vapor liquefaction claimed is that which takes place on the work.
SEE OR SEARCH CLASS
201, Distillation: Processes, Thermolytic, appropriate subclasses for a process of carbonizing solid carbonaceous material and recovering a liquid product.
203, Distillation: Processes, Separatory, appropriate subclasses for a process of distilling a liquid.
