US PATENT SUBCLASS 423 / 239.1
.~.~ Utilizing solid sorbent, catalyst, or reactant

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

210  DF  MODIFYING OR REMOVING COMPONENT OF NORMALLY GASEOUS MIXTURE {11}
235  DF  .~ Nitrogen or nitrogenous component {3}
239.1.~.~ Utilizing solid sorbent, catalyst, or reactant {1}
239.2  DF  .~.~.~> Zeolite

DEFINITION

Classification: 423/239.1

Utilizing solid sorbent, catalyst, or reactant:

(under subclass 235) Process in which the treating material is a solid and functions to (a) modify a component, (b) attract and retain a component, or (c) react with and chemically change a component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212, for processes which remove nitrogenous components from internal engine exhaust.

230, for processes using a solid sorbent, catalyst, or reactant to separate carbon dioxide or hydrogen sulfide in a gaseous mixture.

SEE OR SEARCH CLASS

95, Gas Separation: Processes, for processes of separating nitrogen (N2) or nitrogen containing compounds from a gaseous fluid mixture by physical means only; particularly,

90+, for solid sorption, per se.