US PATENT SUBCLASS 423 / 228
.~.~.~ Amine

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}
220  DF  .~ Carbon dioxide or hydrogen sulfide component {9}
226  DF  .~.~ Utilizing organic reactant {2}
228.~.~.~ Amine {1}
229  DF  .~.~.~.~> Ethanolamine

DEFINITION

Classification: 423/228

(under subclass 226) Processes wherein the organic compound is one derived from ammonia by substituting an organic radical for at least one of the hydrogens.