US PATENT SUBCLASS 423 / 54
.~.~ Ion exchanging or liquid-liquid extracting

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}
53  DF  .~ Group VIB metal (Cr, Mo, or W) {4}
54.~.~ Ion exchanging or liquid-liquid extracting

DEFINITION

Classification: 423/54

(under subclass 53) Processes which include the step of (1) attracting and retaining a component of the mixture by contact with an ion exchange substance or (2) selectively dissolving a component in one of two immiscible liquids to effect a separation; see Glossary.