US PATENT SUBCLASS 423 / 238
.~.~.~ Utilizing liquid as 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}
237  DF  .~.~ Ammonia {1}
238.~.~.~ Utilizing liquid as reactant

DEFINITION

Classification: 423/238

(under subclass 237) Processes in which the ammonia is removed or changed by means of a reactant in the liquid state.

SEE OR SEARCH THIS CLASS, SUBCLASS:

279+, 286+, 305+, 352+, 396, 420, 470+, 517, 545+, 593+, for processes of preparing an ammonium compound from a gas where it is clear that the main intent is to use the gas as the feedstock source of the ammonia and not to purify the gas.