US4252629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrochemical processes especially electrowinning and method for manufacturing same
Assignee: SGL Carbon SE
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Filing: 1979-04-03
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Granted: 1981-02-24
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Expires: 1999-04-03
Abstract
Abstract Sintered electrode especially for use in electrowinning formed of a corrosion-resistant carrier consisting at least in part of sintered TiOx, wherein x=0.25 to 1.5, and a coating of manganese dioxide covering at least part of the surface of the carrier.
Inventors
- 👤 Gunter Bewer
- 👤 Hans Herbst
- 👤 Dieter Lieberoth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:20
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/055; C25B11/057; C25B11/067; C25B11/052; C25B11/069; C25B11/073; C25B11/075; C25B11/077; C25B11/079; C25C; C25C7/00; C25C7/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
Sintered electrode for electrochemical processes especially for electrowinning which comprises a corrosion-resistant carrier consisting at least in part of sintered titanium oxide TiO x , wherein x=0.25 to 1.5, and a coating of manganese dioxide immediately adjacent the carrier and covering at least in part the surface of the carrier.
Claim 2
Dependent Claim
50 words
Sintered electrode for electrochemical processes especially for electrowinning which comprises a corrosion-resistant carrier consisting at least in part of sintered titanium oxide TiO x , wherein x=0.25 to 1.5, and a coating of manganese dioxide immediately adjacent the carrier and covering at least in part the surface of the carrier.
Claim 3
Dependent Claim
9 words
Electrode according to claim 1, wherein x=0.42 to 0.60.
Claim 4
Dependent Claim
19 words
Electrode according to claim 1 or claim 2, wherein the carrier consists entirely of titanium oxide TiO x .
Claim 5
Dependent Claim
25 words
Electrode according to claim 1 or claim 2, wherein the carrier consists of sintered titanium and a sintered-on layer of titanium oxide TiO x .
Claim 6
Dependent Claim
17 words
Electrode according to claim 4, wherein the thickness of the sintered-on layer is 0.1 to 5 mm.
Claim 7
Dependent Claim
67 words
Corrosion-resistant electrode for electrolysis for metal contained in aqueous solutions comprising an electrode base consisting at least partially of titanium oxide TiO x , wherein x=0.25 to 1.5, formed by moulding titanium oxide powder and sintering the moulded shape by heating in an inert gas atmosphere to a temperature of from 900° to 1400° C., and a covering layer of manganese dioxide immediately adjacent the molded shape.
Claim 8
Dependent Claim
67 words
Corrosion-resistant electrode for electrolysis for metal contained in aqueous solutions comprising an electrode base consisting at least partially of titanium oxide TiO x , wherein x=0.25 to 1.5, formed by moulding titanium oxide powder and sintering the moulded shape by heating in an inert gas atmosphere to a temperature of from 900° to 1400° C., and a covering layer of manganese dioxide immediately adjacent the molded shape.
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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |