US4048027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing electrolytic MnO2 from molten manganese nitrate hexahydrate
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1976-03-30
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Granted: 1977-09-13
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Expires: 1996-03-30
Abstract
Abstract A process for producing electrolytic manganese dioxide by electrolyzing molten manganese nitrate hexahydrate at a temperature between about 115 DEG C. and 126 DEG C. and with an anodic current density of from about 140 to about 300 mA/cm2.
Inventors
- 👤 Seymour Senderoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:46
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/21
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
In a process for producing battery grade electrolytic manganese doixide by electrolyzing molten manganese nitrate hexahydrate, the improvement being the electrolyzing of the manganese nitrate hexahydrate at a temperature between about 115° C. and 126° C. and with an anodic current density of from about 140 to about 300 mA/cm 2 .
Claim 2
Dependent Claim
52 words
In a process for producing battery grade electrolytic manganese doixide by electrolyzing molten manganese nitrate hexahydrate, the improvement being the electrolyzing of the manganese nitrate hexahydrate at a temperature between about 115° C. and 126° C. and with an anodic current density of from about 140 to about 300 mA/cm 2 .
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein the temperature is between about 115° C. and 119° C.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the temperature is about 117° C.
Claim 5
Dependent Claim
20 words
The process of claim 1 wherein the anodic current density is from about 150 to about 200 mA/cm 2 .
Claim 6
Dependent Claim
20 words
The process of claim 2 wherein the anodic current density is from about 150 to about 200 mA/cm 2 .
Claim 7
Dependent Claim
20 words
The process of claim 3 wherein the anodic current density is from about 150 to about 200 mA/cm 2 .
References Cited (Backward Citations)
US3852171A
Cited
SU379534A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |