US PATENT SUBCLASS 423 / 576.6
.~.~.~.~.~.~ Chelated or sequestered transition metal

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

511  DF  SULFUR OR COMPOUND THEREOF {4}
567.1  DF  .~ Elemental sulfur {5}
571  DF  .~.~ Reacting a sulfide {3}
573.1  DF  .~.~.~ Hydrogen sulfide {4}
576.4  DF  .~.~.~.~ By reacting gaseous feed stream with liquid aqueous mixture {2}
576.5  DF  .~.~.~.~.~ Transition metal-containing mixture {1}
576.6.~.~.~.~.~.~ Chelated or sequestered transition metal

DEFINITION

Classification: 423/576.6

Chelated or sequestered transition metal:

(under subclass 576.5) Subject matter in which the transition metal is dissolved in the form of a complex which retards

precipitation of that metal from solution.