US PATENT SUBCLASS 423 / 154
.~.~.~ At specified temperature

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

DEFINITION

Classification: 423/154

(under subclass 153) Processes wherein the temperature or range thereof at which the sulfur removal takes place is specifically recited.