US PATENT SUBCLASS 423 / 179
.~ Alkali metal (Li, Na, K, Rb, or Cs)

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
179.~ Alkali metal (Li, Na, K, Rb, or Cs) {12}
179.5  DF  .~.~> Lithium
180  DF  .~.~> Decomposing amalgam or other alloy
181  DF  .~.~> Ion exchanging or liquid-liquid extracting
182  DF  .~.~> Regenerating solution {1}
184  DF  .~.~> Forming insoluble substance in liquid {8}
200  DF  .~.~> Volatizing an alkali metal
201  DF  .~.~> Agitating during heating or reaction
202  DF  .~.~> Treating with acid or acid salt
203  DF  .~.~> Subjecting mixture to pressure, vacuum, or steam {2}
206.1  DF  .~.~> Mixture contains organic or carbonaceous impurity {2}
208  DF  .~.~> Water leaching or forming water soluble substance
209  DF  .~.~> Carbonating

DEFINITION

Classification: 423/179

(under subclass 1) Processes wherein the compound comprises one of the metals belonging to the group known as the alkali metals, i.e., lithium, sodium, potassium, rubidium or cesium or the metals of Group 1A of the periodic system except for francium.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction or containment of hazardous or toxic waste being volatilized and containing Li, Na, K, Rb, and Cs.