US PATENT SUBCLASS 75 / 547
.~.~.~.~.~.~.~ Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.)

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
433  DF  .~.~.~ Iron(Fe) {18}
507  DF  .~.~.~.~ Melting Iron(Fe) or treating molten Iron {12}
528  DF  .~.~.~.~.~ Injecting gas or nonmetalliferous liquid which gasifies into, onto, or through premelted Iron(Fe) or slag layer thereon {5}
531  DF  .~.~.~.~.~.~ And adding solid agent, slag, or flux to premelted Iron(Fe) or slag layer thereon {5}
547.~.~.~.~.~.~.~ Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.)

DEFINITION

Classification: 75/547

Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.):

(under subclass 531) Process wherein the injected gas is a compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

540+, or 548+, for gaseous compositions containing Oxygen gas such as air or Oxygen gas enriched gas compositions.