US PATENT SUBCLASS 75 / 567
.~.~.~.~.~.~ Elemental metal or elemental Silicon(Si)

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}
560  DF  .~.~.~.~.~ Treating premelted Iron(Fe) or slag layer thereon by adding solid agent, slag, or flux {9}
567.~.~.~.~.~.~ Elemental metal or elemental Silicon(Si) {1}
568  DF  .~.~.~.~.~.~.~> Aluminum(Al) or Magnesium(Mg)

DEFINITION

Classification: 75/567

Elemental metal or elemental Silicon (Si):

(under subclass 560) Process wherein elemental metal (e.g., scrap, Iron (Fe), Magnesium (Mg), Aluminum (A1), etc.) or elemental Silicon (Si) is present in the solid agent, separately prepared slag, or flux.