US PATENT SUBCLASS 423 / 18
.~.~.~.~ Acid leaching

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
2  DF  .~ Radioactive metal (At. No. 84+ or radioactive isotope of another metal) {1}
3  DF  .~.~ Actinide series metal (At. No. 89+) {7}
11  DF  .~.~.~ Forming insoluble substance in liquid {5}
18.~.~.~.~ Acid leaching

DEFINITION

Classification: 423/18

(under subclass 11) Processes which include making a separation by using an acid as an active ingredient to leach, wash, or dissolve; see Glossary.