US PATENT SUBCLASS 423 / 47
.~.~ Desulfurizing or de-arsenating

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}
47.~.~ Desulfurizing or de-arsenating

DEFINITION

Classification: 423/47

(under subclass 23) Processes including the removal of sulfur or of arsenic from the mixture.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, subclass for a process of removing at least a portion of the sulfur or of the arsenic from an ore for the purpose of concentrating the metal values of the ores.