Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Reexamination Certificate
2011-04-05
2011-04-05
Wyszomierski, George (Department: 1733)
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
C423S038000
Reexamination Certificate
active
07918919
ABSTRACT:
A method for suppressing mercury dissolution during pressure oxidation of precious metal-containing materials in the presence of halogens and halides is provided. Pressure oxidation is performed under controlled oxidative conditions to maintain the mercury predominantly in the solid residue.
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Ahern Noelene
Choi Yeonuk
Hillier Daniel
Barrick Gold Corporation
McGuthry-Banks Tima M
Sheridan & Ross P.C.
Wyszomierski George
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