US PATENT SUBCLASS 502 / 418
.~.~ Process utilizing solid or liquid source carbonizable material, or product thereof

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

400  DF  SOLID SORBENT {6}
416  DF  .~ Free carbon containing {3}
418.~.~ Process utilizing solid or liquid source carbonizable material, or product thereof {9}
419  DF  .~.~.~> Producing diverse useful byproduct
420  DF  .~.~.~> Temperature vs. time factor
421  DF  .~.~.~> Including recycling product or intermediate thereof to prior stage of process
422  DF  .~.~.~> Including diverting part of source to provide fuel for process
423  DF  .~.~.~> Adding nongaseous inorganic, or inorganic yielding component, prior to or during process {4}
428  DF  .~.~.~> Including pelletizing or briquetting and subsequently comminuting {1}
430  DF  .~.~.~> Treating with gas {2}
436  DF  .~.~.~> Diverse temperatures
437  DF  .~.~.~> Specified source (e.g., peach pit, etc.)

DEFINITION

Classification: 502/418

Process utilizing solid or liquid source carbonizable material, or product thereof:

(under subclass 416) Process in which the sorbent is produced by (a) chemically reacting to a nongaseous carbon compound to produce elemental carbon or (b) adding to or removing from elemental carbon, some other material or chemically or physically treating such carbon to enhance its sorbability.

(1) Note. A disclosure of material which may be shaped or pelletized is an indication of solid or viscous material. An oil is not considered solid or viscous, however a process including spraying an acid sludge on cake particles is considered to utilize solid or viscous material.

(2) Note. Such processes as destructive distillation, charring, pyrolysis etc. to produce a sorbent (e.g., activated) carbon are provided for in this or an indented subclass.

SEE OR SEARCH CLASS

201, Distillation: Processes, Thermolytic, for destructive distillation in general.

202, Distillation: Apparatus, for apparatus in which a process of this subclass may be carried out.

264, Plastic and Nonmetallic Article Shaping or Treating Processes,

29.1+, for carbonizing and Shaping. 423, Chemistry of Inorganic Compounds,

455, for carbonizing to pure carbon.