US4299681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrochloric acid electrolyzer
Assignee: ThyssenKrupp Industrial Solutions AG
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Filing: 1980-02-04
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Granted: 1981-11-10
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Expires: 2000-02-04
Abstract
Abstract Hydrochloric acid electrolyzers serve to decompose hydrochloric acid to hydrogen and chlorine with the aid of electric current.
Inventors
- 👤 Luciano Mose
- 👤 Helmuth Schurig
- 👤 Bernd Strasser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; C25B9/77; C25B9/75
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A hydrochloric acid electrolyzer comprising a plurality of bipolar electrodes in electrode frames, diaphragms arranged between the electrodes defining anolyte and catholyte chambers, a pressure plate at each end of the electrolyzer, at least one insulated current conducting element penetrating each pressure plate and connected to the adjacent electrode, an electrolyte flow space defined between each pressure plate and the adjacent electrode, electrolyte distribution chambers defined within said frames, said electrolyte distribution chambers being in fluid communication with one end of each of said electrolyte flow spaces, and inlet and outlet means to said electrolyte flow space, said inlet and outlet means spaced from said electrolyte distribution chambers, whereby all electrolyte flows through said electrolyte flow spaces.
Claim 2
Dependent Claim
117 words
A hydrochloric acid electrolyzer comprising a plurality of bipolar electrodes in electrode frames, diaphragms arranged between the electrodes defining anolyte and catholyte chambers, a pressure plate at each end of the electrolyzer, at least one insulated current conducting element penetrating each pressure plate and connected to the adjacent electrode, an electrolyte flow space defined between each pressure plate and the adjacent electrode, electrolyte distribution chambers defined within said frames, said electrolyte distribution chambers being in fluid communication with one end of each of said electrolyte flow spaces, and inlet and outlet means to said electrolyte flow space, said inlet and outlet means spaced from said electrolyte distribution chambers, whereby all electrolyte flows through said electrolyte flow spaces.
Claim 3
Dependent Claim
45 words
Hydrochloric acid electrolyzer according to claim 1, characterized in that the inlet and outlet means for anolyte and catholyte terminate in the electrode flow spaces above the current conducting elements and that the distribution chambers are arranged in the lower part of said electrode frames.
Claim 4
Dependent Claim
31 words
Hydrochloric acid electrolyzer according to claims 1 or 2, characterized in that the current conducting elements are provided with cooling fins at least in the area of the electrolyte flow space.
References Cited (Backward Citations)
US3236760A
Cited
FR1570279A
Cited
US3673076A
Cited
FR2410059A1
Cited
DE2816152B1
Cited
US4201651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |