Method and device for regenerating ion exchanger, and...

Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface... – Gap maintenance or defined tool-workpiece gap

Reexamination Certificate

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C205S672000, C204S239000, C204S262000, C204S263000

Reexamination Certificate

active

07427345

ABSTRACT:
A method and device for regenerating an ion exchanger can regenerate an ion exchanger easily and quickly, and can minimize a load upon cleaning of the regenerated ion exchanger and disposal of waste liquid. A method for regenerating a contaminated ion exchanger includes: providing a pair of a regeneration electrode and a counter electrode, a partition disposed between the electrodes, and an ion exchanger to be regenerated disposed between the counter electrode and the partition; and applying a voltage between the regeneration electrode and the counter electrode while supplying a liquid between the partition and the regeneration electrode and also supplying a liquid between the partition and the counter electrode.

REFERENCES:
patent: 6368493 (2002-04-01), Mori et al.
patent: 6602396 (2003-08-01), Mori et al.
patent: 6743349 (2004-06-01), Mori et al.
patent: 6875335 (2005-04-01), Mori et al.
patent: 7101465 (2006-09-01), Kobata et al.
patent: 1079003 (2001-02-01), None
patent: 1139400 (2001-10-01), None
patent: 10-58236 (1998-03-01), None
patent: 2000-167714 (2000-06-01), None
patent: 2001-64799 (2001-03-01), None
Co-pending U.S. Appl. No. 10/337,357, filed Jan. 7, 2003, entitled “Electrolytic Processing Device and Substrate Processing Apparatus”.

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