US PATENT SUBCLASS 423 / 111
.~ Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be)

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}
111.~ Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) {9}
112  DF  .~.~> Ion exchanging or liquid-liquid extracting
113  DF  .~.~> Magnetic separating
114  DF  .~.~> Forming compound containing ammonium and metal
115  DF  .~.~> Forming compound containing plural metals {4}
122  DF  .~.~> Forming insoluble substance in liquid {7}
130  DF  .~.~> Destroying or separating organic impurity
131  DF  .~.~> Leaching, washing, or dissolving {1}
133  DF  .~.~> Volatizing {2}
137  DF  .~.~> Utilizing carbon as reducing agent

DEFINITION

Classification: 423/111

(under subclass 1) Processes wherein the compound comprises beryllium, aluminum, gallium, indium or thallium.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction or containment of hazardous or toxic waste containing, Al, Ga, In, Tl, or Be.