US PATENT SUBCLASS 423 / 86
.~.~ Dissolving or leaching of iron

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}
69  DF  .~ Group IVB metal (Ti, Zr, or Hf) {11}
86.~.~ Dissolving or leaching of iron

DEFINITION

Classification: 423/86

(under subclass 69) Processes which include the step of dissolving or leaching iron and thereby separating it from part of the original mixture; see Glossary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

150.3, for general processes for chemically leaching iron values from iron-bearing ores.