US PATENT SUBCLASS 423 / 227
.~.~.~ Phenolate or phenolic type

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}
227.~.~.~ Phenolate or phenolic type

DEFINITION

Classification: 423/227

(under subclass 226) Processes wherein the compound has an aromatic nucleus in which at least one of the hydrogen atoms has been replaced by a hydroxyl group.