US PATENT SUBCLASS 423 / 62
.~ Group VB metal (V, Nb, or Ta)

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}
62.~ Group VB metal (V, Nb, or Ta) {4}
63  DF  .~.~> Ion exchanging or liquid-liquid extracting
64  DF  .~.~> From organic liquids
65  DF  .~.~> Forming insoluble substance in liquid {2}
68  DF  .~.~> Leaching, washing, or dissolving

DEFINITION

Classification: 423/62

(under subclass 1) Processes wherein the compound comprises vanadium, niobium, or tantalum.

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 V, Nb, or Ta.