US PATENT SUBCLASS 75 / 592
.~.~.~.~.~ Precipitating impurities from molten Alkali metal

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}
589  DF  .~.~.~.~ Alkali metal, singly or in combination {2}
592.~.~.~.~.~ Precipitating impurities from molten Alkali metal

DEFINITION

Classification: 75/592

Precipitating impurities from molten Alkali metal:

(under subclass 589) Process in which the contaminants are settled out of a molten metal that contains over 50 percent by weight Alkali metal, singly or in combination.