US PATENT SUBCLASS 423 / 8
.~.~.~ 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}
2  DF  .~ Radioactive metal (At. No. 84+ or radioactive isotope of another metal) {1}
3  DF  .~.~ Actinide series metal (At. No. 89+) {7}
8.~.~.~ Liquid-liquid extracting {2}
9  DF  .~.~.~.~> Organo-nitrogen solvent
10  DF  .~.~.~.~> Organo-phosphorus solvent

DEFINITION

Classification: 423/8

(under subclass 3) Processes which include the step of selectively dissolving a compound in one of two contacting immiscible liquids for separation; see Glossary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

24, 54, 63, 70, 112, 139, 157, and 181, for processes of treating mixtures including a desired metal to form a compound of the metal, in which the step of liquid-liquid extraction if utilized.