US4028208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolyte cell with vertical electrodes
Assignee: Solvay SA
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Filing: 1975-11-18
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Granted: 1977-06-07
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Expires: 1995-11-18
Abstract
Abstract The invention relates to improvements in electrolytic cells with vertical metal anode plates, such as diaphragm cells for the electrolysis of a brine. The cell according to the invention comprises a baseplate with slots passing therethrough and anode plates which pass through the slots in the baseplate and which are connected to a current lead-in disposed beneath the baseplate. Sealing joints are interposed between the anode plates and the faces of the slots and are supported by the current lead-in.
Inventors
- 👤 Umberto Giacopelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:41
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
98 words
Electrolytic cell comprising, a baseplate with slots passing therethrough, anode plates which pass through the slots in the baseplate, sealing joints in the slots of the base plate, between the anode plates and the faces of the slots, a current lead-in disposed beneath the base plate and electrically and mechanically connected to the anode plates in order to support said anode plates, and means for supporting said current lead-in beneath the cell, and said sealing joints being supported on said current lead-in and compressed between said current lead-in and the faces of said slots in the base plate.
Claim 2
Dependent Claim
98 words
Electrolytic cell comprising, a baseplate with slots passing therethrough, anode plates which pass through the slots in the baseplate, sealing joints in the slots of the base plate, between the anode plates and the faces of the slots, a current lead-in disposed beneath the base plate and electrically and mechanically connected to the anode plates in order to support said anode plates, and means for supporting said current lead-in beneath the cell, and said sealing joints being supported on said current lead-in and compressed between said current lead-in and the faces of said slots in the base plate.
Claim 3
Dependent Claim
24 words
Cell according to claim 1, characterised in that said joints are elastically compressed in the slots, between said anode plates and the current lead-in.
Claim 4
Dependent Claim
19 words
Cell according to claim 1, characterised in that said anode plates are supported in the cell by current lead-in.
Claim 5
Dependent Claim
25 words
Cell according to claim 1, characterised in that the current lead-in comprises metal bars extend between the anode plates and are clamped between these plates.
Claim 6
Dependent Claim
23 words
Cell according to claim 4, characterised in that the anode plates and the metal bars are divided into a plurality of distinct groups.
Claim 7
Dependent Claim
22 words
Cell according to claim 1, characterised in that the slots in the baseplate and the sealing joints have a trapezoidal cross section.
Claim 8
Dependent Claim
12 words
Cell according to claim 1, characterised in that the baseplate is monolithic.
Claim 9
Dependent Claim
24 words
Cell according to claim 1, characterised in that the baseplate is formed of a detachable and rigid group of beams parallel to the slots.
Claim 10
Dependent Claim
22 words
Cell according to claim 1, characterised in that the baseplate is pierced by at least one duct for ventilating the current lead-in.
Claim 11
Dependent Claim
22 words
Cell according to claim 1, characterised in that the baseplate is made of concrete having a binder comprising a corrosion-resistant polyester resin.
Claim 12
Dependent Claim
29 words
Cell according to claim 10, characertised in that the the baseplate is monolithic and poured into a prefabricated trough defining the lower surface of the baseplate and its slots.
Claim 13
Dependent Claim
18 words
Cell according to claim 1, characertised in that the baseplate is a laminate of polyester and glass fibres.
Claim 14
Dependent Claim
32 words
Cell according to claim 1, characertised in that the baseplate is made of a metal or an alloy of a metal of the group consisting of titanium, tantalum, niobium, tungsten and zirconium.
Claim 15
Dependent Claim
26 words
Cell according to claim 2, characterised in that the joints are compressed against the current lead-in under the action of the weight of the cell itself.
Claim 16
Dependent Claim
34 words
Cell according to claim 1, characterised in that the current lead-in is clamped against the sealing joints by means of an assembly of bolts and nuts, which connect the current lead-in to the baseplate.
Claim 17
Dependent Claim
51 words
Cell according to claim 15, characterised in that each bolt is suspended by its head from the baseplate, the head being movable within a recess formed in the baseplate between two consecutive slots, and the bolts is screwed into a nut which bears against the lower face of the current lead-in.
Claim 18
Dependent Claim
20 words
Cell according to claim 1, characterised in that the joints are made of an elastomeric copolymer of ethylene and propylene.
Claim 19
Dependent Claim
21 words
Cell according to claim 1, characterised in that the joints are made of an elastomeric copolymer of vinylidene fluoride and hexafluoropropene.
Claim 20
Dependent Claim
54 words
Cell according to claim 1, characterised in that, in the case where the cell comprises parallel rows of at least two anode plates placed in line with each other, the sealing joint surrounding the anode plates of a row comprises a strip pierced by axial slots, through each of which passes an anode plate.
Claim 21
Dependent Claim
63 words
Cell according to claim 1, characterised in that, in the case where the cell comprises parallel rows of at least two anode plates placed in line with each other, the sealing joint surrounding the anode plates of a row comprises a strip pierced by one axial slot, through which pass the row of anode plates and platelets which joint together these anode plates.
Claim 22
Dependent Claim
35 words
Cell according to claim 1, characterised in that the baseplate has a peripheral shoulder, a flexible joint interposed between the baseplate and the side walls of the cell, and said shoulder surrounding said flexible joint.
Claim 23
Dependent Claim
22 words
Cell according to claim 1, wherein the cell is a diaphragm cell for the production of chlorine by electrolysis of a brine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |