US PATENT SUBCLASS 423 / 231
.~.~.~ Iron oxide or hydroxide

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
230  DF  .~.~ Utilizing solid sorbent, catalyst, or reactant {1}
231.~.~.~ Iron oxide or hydroxide

DEFINITION

Classification: 423/231

(under subclass 230) Processes in which the solid treating material includes an oxide or hydroxide of iron.