US PATENT SUBCLASS 75 / 454
.~.~.~.~.~ Using same inlet to feed solid and gas

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}
443  DF  .~.~.~.~ Reducing in gaseous suspension {4}
454.~.~.~.~.~ Using same inlet to feed solid and gas {2}
455  DF  .~.~.~.~.~.~> Inlet is a burner {1}
457  DF  .~.~.~.~.~.~> Inlet feeds upwardly

DEFINITION

Classification: 75/454

Using same inlet to feed solid and gas:

(under subclass 443) Process wherein the solid to be reduced and a reducing gas are fed into the apparatus, where reduction occurs, through the same inlet.