US PATENT SUBCLASS 75 / 663
.~.~.~.~.~ Treating molten or vaporous Zinc(Zn)

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}
585  DF  .~.~.~ Nonferrous {25}
654  DF  .~.~.~.~ Zinc(Zn) {3}
663.~.~.~.~.~ Treating molten or vaporous Zinc(Zn) {2}
664  DF  .~.~.~.~.~.~> Using Halogen containing material
665  DF  .~.~.~.~.~.~> Vaporizing or condensing {2}

DEFINITION

Classification: 75/663

Treating molten or vaporous Zinc (Zn):

(under subclass 654) Process in which a molten or vaporous metal that contains over 50 percent by weight Zinc (Zn) is treated.