US PATENT SUBCLASS 423 / 26
.~.~ Flotation

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}
23  DF  .~ Group IB metal (Cu, Ag, or Au) {10}
26.~.~ Flotation

DEFINITION

Classification: 423/26

(under subclass 23) Processes which include the step of floating or causing concentrated metal values of the mixture to rise to the top and to be skimmed off while the earthy portions of the ore are permitted to settle; see Glossary.