US PATENT SUBCLASS 423 / 153
.~.~ Desulfurizing

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}
153.~.~ Desulfurizing {1}
154  DF  .~.~.~> At specified temperature

DEFINITION

Classification: 423/153

(under subclass 138) Processes including the step of removing at least some sulfur from the mixture.