EP0040920A1
Expired / Lapsed
EP
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Monopolar electrolytic cell of the filter press type
Assignee: Imperial Chemical Industries Ltd
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Filing: 1981-05-08
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Granted: —
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Expires: 2001-05-08
Abstract
Abstract An electrolytic cell of the filter press type comprising a monopolar cell unit having a plurality of substantially vertical alternating anodes and cathodes each anode being partitioned from the adjacent cathode or cathodes by a separator to form in the cell unit a plurality of anode and cathode compartments, the electrolytic cell comprising two or more such units mounted one above the other, the anodes (3) of the cell unit at the top (6) or bottom (1) being attached to electrical conductors (8), the cathodes (2) of the cell unit at the bottom (1) or top (6) being attached to electrical conductors (7), and the anodes and cathodes of adjacent cell units which are not attached to the said conductors being connected by means of a bipolar electrical connection or connections between the anodes of one cell unit and the cathodes of the adjacent cell unit positioned above or below the said cell unit.
Inventors
- 👤 Thomas Wesley Boulton
- 👤 Brian John Darwent
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:08
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/042; C25B11/046; C25B15/00; C25B15/02; C25B9/00; C25B9/60; C25B9/65; C25B9/70; C25B9/73; C25B9/75; C25B9/77
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
176 words
1 An electrolyte cell of the filter press type comprising a monopolar cell unit having a plurality of substantially vertical alternating anodes and cathodes each anode being partitioned from the adjacent cathode or cathodes by a separator to form in the cell unit a plurality of anode compartments and cathode compartments, characterised in that the electrolytic cell comprises two or more cell units mounted one above the other, the anodes of the cell unit at the top or bottom, as the case may be, being attached to electrical conductors for connection to a bus-bar, the cathodes of the cell unit at the bottom or top, as the case may be, being attached to electrical conductors for connection to a bus-bar, and the anodes and cathodes of adjacent cell units which are not attached to the said conductors being connected by means of a bipolar electrical connection or connections between the anodes of one cell unit and the cathodes of the adjacent cell unit positioned above or below the said cell unit, as the case may be.
Claim 2
Dependent Claim
176 words
1 An electrolyte cell of the filter press type comprising a monopolar cell unit having a plurality of substantially vertical alternating anodes and cathodes each anode being partitioned from the adjacent cathode or cathodes by a separator to form in the cell unit a plurality of anode compartments and cathode compartments, characterised in that the electrolytic cell comprises two or more cell units mounted one above the other, the anodes of the cell unit at the top or bottom, as the case may be, being attached to electrical conductors for connection to a bus-bar, the cathodes of the cell unit at the bottom or top, as the case may be, being attached to electrical conductors for connection to a bus-bar, and the anodes and cathodes of adjacent cell units which are not attached to the said conductors being connected by means of a bipolar electrical connection or connections between the anodes of one cell unit and the cathodes of the adjacent cell unit positioned above or below the said cell unit, as the case may be.
Claim 3
Dependent Claim
43 words
2 An electrolytic cell as claimed in claim 1 characterised in that the anodes of one cell unit which are electrically connected to the cathodes of an adjacent cell unit are so connected by means of bipolar connections between individual anodes and cathodes.
Claim 4
Dependent Claim
43 words
3 An electrolytic cell as claimed in claim 1 characterised in that the anodes of one cell unit which are electrically connected to the cathodes of an adjacent cell unit are so connected by means of bipolar connections to a common electrical conductor.
Claim 5
Dependent Claim
32 words
4 An electrolytic cell as calimed in claim 1 or claim 2 characterised in that the anodes and cathodes of adjacent cell units which are electrically connected are positioned essentially in line.
Claim 6
Dependent Claim
40 words
5 An electrolytic cell as claimed in any one of claims 1 to 4 characterised in that the bipolar connection is made through a metal or alloy which is electrically conducting and which is resistant to the passage of hydrogen.
Claim 7
Dependent Claim
27 words
6 An electrolytic cell as claimed in any one of claims 1 to 5 characterised in that it comprises two cell units mounted one above the other.
Claim 8
Dependent Claim
32 words
7 An electrolytic cell as claimed in any one of claims 1 to 6 characterised in that in the cell units the separators are microporous diaphragms of a fluorine-containing polymeric material. I
Claim 9
Dependent Claim
34 words
8 An electrolytic cell as claimed in any one of claims 1 to 6 characterised in that in the cell units the separators are cation-exchange membranes of a fluorine-containing polymeric material containing cation-exchange groups.
Claim 10
Dependent Claim
96 words
9 An electrolytic cell as claimed in any one of claims 1 to 8 characterised in that the cell units comprise anode plates having a metallic anode portion and cathode plates having a metallic cathode portion, and in that the plates have a plurality of openings therein which in the cell units define a plurality of compartments lengthwise of the cell units through which electrolyte may be fed to the anode compartments of the cell units and through which the products of electrolysis may be removed from the anode and cathode compartments of the cell units.
Claim 11
Dependent Claim
39 words
10 An electrolytic cell as claimed in claim 9 characterised in that the cell units comprise spacing plates having a plurality of openings therein which in the cell units define a plurality of compartments lengthwise of the cell units.
Claim 12
Dependent Claim
19 words
11 An electrolytic cell as claimed in claim 9 or claim 10 characterised in that the plates are flexible.
Claim 13
Dependent Claim
44 words
12 An electrolytic cell as claimed in any one of claims 9 to 11 characterised in that communication between the compartments lengthwise of the cell units and the anode and cathode compartments is provided by channels in the faces or walls of the plates.
Claim 14
Dependent Claim
24 words
13 An electrolytic cell as claimed in claim 12 characterised in that channels are provided in the faces or walls of the spacing plates.
Claim 15
Dependent Claim
20 words
14 An electrolytic cell as claimed in claim 1 substantially as hereinbefore described with reference to figures 1 to 4.
References Cited (Backward Citations)
US3410784A
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US3766044A
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GB1362127A
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GB1479490A
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FR2382518A1
Cited
FR2433592A1
Cited
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