US PATENT SUBCLASS 423 / 147
.~.~.~.~ Halogenating, hydroxylating, or hydrating

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  DF  .~.~.~ Sulfating {1}
147.~.~.~.~ Halogenating, hydroxylating, or hydrating

DEFINITION

Classification: 423/147

(under subclass 146) Processes including the step of chemically forming a hydroxide, or a hydrate or a compound containing a halogen element.