US3962068A
Expired / Lapsed
US
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Metal anode for electrochemical processes
Assignee: De Nora Deutschland GmbH
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Filing: 1974-03-13
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Granted: 1976-06-08
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Expires: 1994-03-13
Abstract
Abstract A metal anode for electrochemical processes, particularly for electrolytic processes, is provided with a metal resistant to the electrolysis medium and with an active cover layer applied thereon and comprising crystalline structures of the type Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 , with Me A representing Li, Na, K, and Me B representing Tl and Ag.
Inventors
- 👤 Dieter Zollner
- 👤 Christine Zollner
- 👤 Konrad Koziol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:27
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/075
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
Metal anode for electrochemical processes, comprising a metal resistant to the electrolysis medium and an active cover layer on the surface of said metal consisting essentially of a crystalline structure of the type Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 , where Me A represents Li, Na, K, and Me B represents Tl and Ag.
Claim 2
Dependent Claim
64 words
Metal anode for electrochemical processes, comprising a metal resistant to the electrolysis medium and an active cover layer on the surface of said metal consisting essentially of a crystalline structure of the type Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 , where Me A represents Li, Na, K, and Me B represents Tl and Ag.
Claim 3
Dependent Claim
38 words
A metal anode according to claim 1, in which said cover layer comprises at least 30% of substances of the formula Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 .
Claim 4
Dependent Claim
41 words
A metal anode according to claim 1, in which the content of substances of the type Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 within the cover layer amounts to more that 50%.
Claim 5
Dependent Claim
49 words
A metal anode according to claim 1, in which said cover layer contains at least one member selected from the group consisting of Li approx . 0.4 Tl approx . 0.1 Pt 3 O 4 and Li approx . 0.4 Ag approx . 0.1 Pt 3 O 4 .
Claim 6
Dependent Claim
55 words
A metal anode according to claim 1, in which said cover layer contains, besides materials of the type Me A (I) approx . 0.4 Me B (I) approx . 0.1 Pt 3 O 4 , at least one of said substances selected from the group consisting of binders, stabilizers and materials for improving electrical conductivity.
Claim 7
Dependent Claim
31 words
A metal anode according to claim 1, in which the titanium base contains on its surface at least one member selected from the groups consisting of alloys TiTa3OPdO5, TiPdO2 and TiPdO5.
References Cited (Backward Citations)
DE77963C
Cited
US3451856A
Cited
FR1506040A
Cited
US3649485A
Cited
US3491014A
Cited
US3711397A
Cited
US3804740A
Cited
US3801490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |