Title:
ELECTRODE ELEMENT FOR ELECTROLYTIC PURPOSES AND ITS USE
Document Type and Number:
WIPO Patent Application WO1991012358
Kind Code:
A3
Abstract:
PCT No. PCT/EP91/00043 Sec. 371 Date Aug. 5, 1992 Sec. 102(e) Date Aug. 5, 1992 PCT Filed Jan. 12, 1991 PCT Pub. No. WO91/12358 PCT Pub. Date Aug. 22, 1991.In order to prevent mechanical damage to electrode surfaces and to facilitate easy swapping out of immersible electrodes for inspection or replacement, an electrode element for an electrolysis cell for electrolytic precipitation of metals from a liquid containing metal ions has a frame (1) provided with parallel side sections (2, 3) of electrically insulating plastic. Each element includes at least one conduit (13) for supplying a liquid ion conductor and at least one conduit (16) for the removal of this liquid ion conductor. There is at least one planar active part is disposed between the conduits to serve as an electrode (7), along which the ion conductor flows. The active surface of the electrode (7) is covered by an ion exchange diaphragm (20). The electrode element is adapted for partial dipping, up to a predetermined immersion line (17), in the liquid. The electrode (7) is removably supported in the side sections (2, 3) of the frame (1). The diaphragm (20) defines a pouch enclosing at least the portion of the electrode (7) dipped into the metal-ion-containing liquid. The pouch is enclosed by a protective box (21) of an electrically insulating plastic provided with openings (22), where at least a portion of the openings (22) are directed toward an active surface of the electrode (7).
Inventors:
MAYR MAX (DE)
BLATT WOLFGANG (DE)
HEINKE HARRI (DE)
BLATT WOLFGANG (DE)
HEINKE HARRI (DE)
Application Number:
PCT/EP1991/000043
Publication Date:
October 03, 1991
Filing Date:
January 12, 1991
Export Citation:
Assignee:
HERAEUS ELEKTROCHEMIE (DE)
International Classes:
C02F1/461; C25C7/02; C02F1/467; (IPC1-7): C25C7/02
Foreign References:
| FR2520760A1 | 1983-08-05 | |||
| FR2213804A1 | 1974-08-09 | |||
| US3708415A | 1973-01-02 | |||
| US4085026A | 1978-04-18 | |||
| FR1166651A | 1958-11-13 |
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