Treatment of ultrafiltrate by electrodialysis

Details Treatment of ultrafiltrate by electrodialysis Treatment of ultrafiltrate by electrodialysis

1984-03-28

1986-04-08

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041808, 204300EC, C25D 2122, C25D 2118

Patent

active

045811113

ABSTRACT:
A process for electrodialyzing ultrafiltrate and an electrodialysis cell for use in the process are disclosed. The ultrafiltrate contains ionic materials which form a deposit on at least one of the electrodes of the electrodialysis cell impairing the electrical efficiency of the cell. This problem is overcome by removing the deposited electrode from the cell while simultaneously replacing it with electrode relatively free of deposit, thereby restoring the electrical efficiency of the cell. The invention is particularly useful for treatment of the ultrafiltrate of an electrodeposition bath.

REFERENCES:
patent: 3470044 (1969-09-01), Radimer
patent: 3663405 (1972-05-01), Christenson et al.
patent: 3663406 (1972-05-01), LeBras et al.
patent: 3766049 (1973-10-01), Smith
patent: 4003819 (1977-01-01), Kunkle et al.
patent: 4149946 (1979-04-01), Burke
patent: 4294677 (1981-10-01), Sakagami et al.
patent: 4331525 (1982-05-01), Huba et al.

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