Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1985-05-20
1989-04-11
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75117, 210648, 210649, 210805, 210806, 423 24, 423DIG14, C22B 1508
Patent
active
048203432
ABSTRACT:
The invention relates to a process for transferring metal ions from an aqueous liquid to a non-aqueous liquid and then to another aqueous liquid. The non-aqueous liquid contains one or more complexing agents and is kept separate from the aqueous liquid releasing metal ions by one or more microporous hydrophobic membrane(s). The non-aqueous liquid is circulated through two or more transfer zones in which the metal ions are taken up and released. The metal ions are released from the non-aqueous liquid into the second aqueous liquid by mechanical mixing of the two phases, followed by a mechanical separation process. The flow of metal ions obtained by this low-cost process is higher than in other processes. The process facilitates coupled co- and counter transport and may be used with advantage, inter alia, in the dressing of ores and in effluent treatment.
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Akzo N.V.
Andrews Melvyn J.
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