US PATENT SUBCLASS 423 / 149
.~.~ Volatizing iron, nickel, or cobalt

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}
149.~.~ Volatizing iron, nickel, or cobalt

DEFINITION

Classification: 423/149

(under subclass 138) Processes including the step of causing any of the iron group metals either as an element or a compound to be changed into a gas or a vapor; see Glossary.