US PATENT SUBCLASS 502 / 431
.~.~.~.~ Fluidized bed having specified parameter

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  DF  .~.~ Process utilizing solid or liquid source carbonizable material, or product thereof {9}
430  DF  .~.~.~ Treating with gas {2}
431.~.~.~.~ Fluidized bed having specified parameter

DEFINITION

Classification: 502/431

Fluidized bed having specified parameter:

(under subclass 430) Process in which a column of gas rises at a velocity to support particles of material in a state of turbulence and a rate, distance, temperature, or other condition is positively recited.

(1) Note. A specified composition is not considered a

parameter for a fluidized bed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41+, for a fluidized bed process of regenerating a sorbent.

SEE OR SEARCH CLASS

423, Chemistry of Inorganic Compounds, Digest 16 for a collection of art on fluidized bed techniques.