Separation of metal ions from aqueous solutions

Details Separation of metal ions from aqueous solutions Separation of metal ions from aqueous solutions

1993-06-07

1994-10-11

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041415, 204149, 204409, 204434, 2041531, G01N 2726, C25F 100

Patent

active

053544382

ABSTRACT:
A process and apparatus for quantitatively and selectively separating metal ions from mixtures thereof in aqueous solution. The apparatus includes, in combination, a horizontal electrochemical flow cell containing flow bulk electrolyte solution and an aqueous, metal ion-containing solution, the cell containing a metal mesh working electrode, a counter electrode positioned downstream from the working electrode, an independent variable power supply/potentiostat positioned outside of the flow cell and connected to the electrodes, and optionally a detector such as a chromatographic detector, positioned outside the flow cell. This apparatus and its operation has significant application where trace amounts of metal ions are to be separated.

REFERENCES:
patent: 4058446 (1977-11-01), Zirino et al.
patent: 4146436 (1979-03-01), Kellermann et al.
patent: 4776932 (1988-10-01), Grossman et al.
patent: 4861555 (1989-08-01), Mowery, Jr.

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