US PATENT SUBCLASS 423 / 247
.~.~ 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}
246  DF  .~ Carbon monoxide component {1}
247.~.~ Utilizing solid sorbent, catalyst, or reactant


DEFINITION

Classification: 423/247

(under subclass 246) Processes in which the treating material is in the solid-state and functions to (1) modify a component, (2) attract and retain a component or (3) react with and chemically change a constituent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212+, for a process in which a solid sorbent, catalyst or reactant is used to separate or remove carbon monoxide from the exhaust of an internal combustion engine.

223, for a process of treating a gaseous mixture to separate or purify carbon dioxide or hydrogen sulfide with a reactant containing boron, phosphorus or arsenic, which reactant may be in the solid-state.

230+, 239 and 244 for processes for separating or purifying a gaseous mixture by using a solid catalyst, sorbent or reactant where a constituent is carbon dioxide or hydrogen sulfide, nitrogen or a nitrogenous compound or sulfur or a compound thereof respectively.