US PATENT SUBCLASS 423 / 146
.~.~.~ Sulfating


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}
138  DF  .~ Iron group metal (Fe, Co, or Ni) {7}
140  DF  .~.~ Forming insoluble substance in liquid {4}
146.~.~.~ Sulfating {1}
147  DF  .~.~.~.~> Halogenating, hydroxylating, or hydrating


DEFINITION

Classification: 423/146

(under subclass 140) Processes including the step of forming a compound containing the sulfate (SO4[end subscrpt][supscrpt]2-[end supscrpt]) radical.