US PATENT SUBCLASS 423 / 49
.~ Group VIIB metal (Mn, Tc, or Re)

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}
49.~ Group VIIB metal (Mn, Tc, or Re) {1}
50  DF  .~.~> Forming insoluble substance in liquid {2}

DEFINITION

Classification: 423/49

(under subclass 1) Processes wherein the compound comprises manganese, technetium or rhenium.

(1) Note. Technetium does not occur naturally; it is a fission product of uranium. Compounds of technetium are known, however, e.g., Tc2 deg.7, NH4Tc deg.4, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2+, for processes of treating mixtures to obtain radioactive group VIIB metal compounds and subclasses 249+ for the radioactive metal compound, per se.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction or containment of hazardous or toxic waste containing (Mn, Tc, or Re) halogen, oxygen, or sulfur.