Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1995-11-07
1996-12-10
Nessler, Cynthia L.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210688, 210670, 423531, 204DIG13, C02F 142
Patent
active
055827373
ABSTRACT:
An ion exchange separation, recovery and regeneration process for the control of iron has been developed to replace the conventional bleed stream process used in copper electrowinning. The process minimizes the loss of cobalt from the electrowinning circuit and strips the iron into a sulfate-based solution suitable for leach solution makeup. In addition, this process can effect a lowering of the total iron concentration in the electrolyte circuit with an associated increase in current efficiency.
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Dreisinger David B.
Gula Michael J.
Horwitz E. Philip
Eichrom Industries, Inc.
Nessler Cynthia L.
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