US PATENT SUBCLASS 203 / 39
WITH DISPARATE PHYSICAL SEPARATION

Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

39WITH DISPARATE PHYSICAL SEPARATION {5}
40  DF  .~> Of entrained particles from a vapor or gas
41  DF  .~> Utilizing solid sorbent
42  DF  .~> Utilizing liquid sorption of component from gas or vapor
43  DF  .~> Utilizing liquid-liquid extracting of distillation product {1}
47  DF  .~> Utilizing removing solid from liquid {1}

DEFINITION

Classification: 203/39

(under the class definition) Processes combined with subjecting the material being vaporized, the vapor, the distillate or the residue to a disparate physical treatment to remove a substance.

(1) Note. A process merely including the step of separating the immiscible layers of the distillate, e.g., decanting, is not considered a disparate separation for this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50+, for a separatory distillation process including the step of separating the distillate layers in an azeotropic type distillation and subclasses 76, 79, 83, 85, 92+, and 95+, when the azeotroping agent is water only.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes,

293+, for a general physical process not otherwise classified and under subclass 293, see "SEARCH THIS CLASS, SUBCLASS" and "SEARCH CLASS" for related fields of search. 95, Gas Separation: Processes, for processes of gas separation, per se.

201, Distillation: Processes, Thermolytic,

3+, for a process of physical separating of a solid in the removed by product mixture.

208, Mineral Oils: Processes and Products,

369, for a process of distilling mineral oil involving some noncondensation treatment of the volatiles evolved during distillation and subclass 349 for a process in which the liquid condensate or the residue resulting from the distillation is subjected to a nonvaporizing treatment.

260, Chemistry of Carbon Compounds,

236.5+, for a process for preparing and treating extracts. See "Notes" under subclass 236.5 and "SEARCH THIS CLASS, SUBCLASS" and under subclass 236.6. Subclasses 704+, includes general physical processes of treating a carbon compound not otherwise provided for.

585, Chemistry of Hydrocarbon Compounds,

802+, for hydrocarbon purification by plural serial diverse separations.