US PATENT SUBCLASS 423 / 234
.~.~ Utilizing ammonium or metal hydroxide solution

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}
234.~.~ Utilizing ammonium or metal hydroxide solution

DEFINITION

Classification: 423/234

(under subclass 220) Processes in which the gaseous mixture in contacted with a treating material comprising the hydroxide of a metal or of ammonium, is solution.