US PATENT SUBCLASS 423 / 38
.~.~.~ Halogenating

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}
23  DF  .~ Group IB metal (Cu, Ag, or Au) {10}
27  DF  .~.~ Leaching, washing, or dissolving {6}
38.~.~.~ Halogenating {2}
39  DF  .~.~.~.~> Specified temperature
40  DF  .~.~.~.~> With chlorine gas or chlorinated water

DEFINITION

Classification: 423/38

(under subclass 27) Processes which include chemically forming a halogen containing compound.

(1) Note. Included in this and the indented subclasses are methods of wet or dry chloridizing precedent to or subsequent to leaching.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,

111+, for a process of forming a pure elemental metal which includes the step of chloridizing.