US PATENT SUBCLASS 423 / 48
.~.~ Forming sulfide or matte
Current as of:
June, 1999
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423 /
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CHEMISTRY OF INORGANIC COMPOUNDS
1
DF
TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND
{15}
23
DF
.~ Group IB metal (Cu, Ag, or Au) {10}
48
.~.~ Forming sulfide or matte
DEFINITION
Classification: 423/48
(under subclass 23) Processes which include forming a sulfide compound or a mixture of sulfides known as a matte.