US PATENT SUBCLASS 423 / 239.2
.~.~.~ Zeolite

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  DF  .~.~ Utilizing solid sorbent, catalyst, or reactant {1}
239.2.~.~.~ Zeolite

DEFINITION

Classification: 423/239.2

Zeolite:

(under subclass 239.1) Process in which the treating material contains a zeolite.