US PATENT SUBCLASS 423 / 223
.~.~ Utilizing reactant containing arsenic, phosphorus, or boron

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}
223.~.~ Utilizing reactant containing arsenic, phosphorus, or boron

DEFINITION

Classification: 423/223

(under subclass 220) Processes in which the material used to treat the gaseous mixture comprises arsenic, phosphorus or boron or compounds thereof.

(1) Note. Catalysts containing arsenic, boron or phosphorus are not included under this definition of reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

230+, for a process in which the gaseous mixture is treated with a catalyst or sorbent which may contain arsenic, phosphorous or boron.