Production of electrolytic manganese dioxide
US4170527A · kind A · utility
11Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1978 |
| Grant date | Oct 9, 1979 |
| Priority date | — |
| Expiry date | Oct 27, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In the production of electrolytic manganese dioxide, the anodically-deposited product is removed by cathodically polarizing the electrode, possibly assisted by impact or vibration. Typically, the current is reversed periodically when the deposit is about 100-1500.mu. thick and shortly after current reversal, the product peels off as flake-like particles which can easily be ground to form a battery de-polarizer. An apparatus for use in carrying out the removal of the desired product from electrodes is disclosed and illustrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.