US PATENT SUBCLASS 423 / 15
.~.~.~.~ Forming compound containing plural metals or metal and ammonium

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}
11  DF  .~.~.~ Forming insoluble substance in liquid {5}
15.~.~.~.~ Forming compound containing plural metals or metal and ammonium

DEFINITION

Classification: 423/15

(under subclass 11) Processes in which a compound formed contains the ammonium (NH4+) radical or another metal in addition to an actinide series metal.

(1) Note. In this subclass will be found, for example, double salts of uranium compounds, i.e., those containing at least two cations and which crystallize as a single substance but ionize as two substances, and compounds of uranic acid (U2O72-).