Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Reexamination Certificate
2006-05-02
2006-05-02
Andrews, Melvyn (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
C075S739000, C075S743000, C075S744000, C205S263000
Reexamination Certificate
active
07037357
ABSTRACT:
A method to dissolve at least one metal from jarosite or other iron hydroxyl sulphate containing-material which includes the steps of subjecting the material to alkaline treatment in a brine solution to facilitate jarosite decomposition, and acidification of the brine slurry to solubilise the liberated metal.
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Ahern Noelene
Schaekers Jozef Maria
Andrews Melvyn
BHP Billiton SA Limited
Nichols G. Peter
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