US PATENT SUBCLASS 75 / 742
.~.~.~.~ Cleaning, leaching, or dissolving of Mercury(Hg)

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}
710  DF  .~.~ Below 300 degrees C {2}
711  DF  .~.~.~ Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) {11}
742.~.~.~.~ Cleaning, leaching, or dissolving of Mercury(Hg)

DEFINITION

Classification: 75/742

Cleaning, leaching or dissolving of Mercury (Hg):

(under subclass 711) Process wherein Mercury (Hg) is subjected to cleaning, leaching or dissolving to provide a refined Mercury.

SEE OR SEARCH THIS CLASS, SUBCLASS:

388, for preparing for amalgamation, preparing and amalgamating, or breaking an amalgam to produce free metal (e.g., Mercury).