(under the class definition) Processes in which the distillation is brought about by heat derived by direct contact with an extraneous, preheated solid or liquid or container.
(1) Note. For purposes of this and indented subclasses a char is considered "an extraneous solid" unless it is disclosed as recycled solid product.
(2) Note. A preheated coke oven is a preheated container within the meaning of this subclass if it contains originally enough heat to completely carbonize the charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
20, for a process in which a solid or liquid noncarbonaceous substance is included in the material to be carbonized and subclass 28 for a continuous process in which a recovered product of the carbonization step is recycled.
SEE OR SEARCH CLASS 165, Heat Exchange,
104.11+, for apparatus in which a retained body of fluent material forming a part of the apparatus, acts as a heat storer or heat carrier for the apparatus.
202, Distillation: Apparatus,
219, for distillation apparatus in which the retort contains a mass of fusible substance through which the heat is conveyed to the retort.
588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the use of preheated inert disparate solid or preheated liquid to destroy hazardous waste.
