US PATENT SUBCLASS 423 / 68
.~.~ Leaching, washing, or dissolving

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  DF  .~ Group VB metal (V, Nb, or Ta) {4}
68.~.~ Leaching, washing, or dissolving

DEFINITION

Classification: 423/68

(under subclass 62) Processes which include leaching, washing, or dissolving out a portion of the mixture; see Glossary.