US PATENT SUBCLASS 75 / 537
.~.~.~.~.~.~.~.~ Elemental metal or elemental Silicon(Si) used in process

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}
533  DF  .~.~.~.~.~.~.~ With solid entrained in gas or injected by gas pressure {6}
537.~.~.~.~.~.~.~.~ Elemental metal or elemental Silicon(Si) used in process

DEFINITION

Classification: 75/537

Elemental metal or elemental Silicon (Si) used in process:

(under subclass 533) Process wherein elemental metal (e.g., scrap, Iron (Fe), Magnesium (Mg), Aluminum (Al), etc.) or elemental Silicon (Si) is present in the solid agent, separately prepared slag, or flux used for treating at any process stage.