Method and apparatus for installation of a membrane to an electrolytic cell
US4268373A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1978 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B13/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Method and apparatus of installation of a membrane to a finger type electrolytic cell are provided, which comprise covering the horizontal surfaces of a cathode not opposing an anode with a membrane installation frame having a collar, positioning the membrane substantially parallel to the vertical surfaces of the cathode, and installing and securing the membrane to the collar by bolting. Not only is operation efficiency for the membrane installation to the electrolytic cell markedly improved, but also, in the case of an ion exchange membrane, an alkali metal hydroxide liquor hardly containing an alkali metal chloride is produced. According to the invention, a conventional asbestos diaphragm finger type electrolytic cell is advantageously converted to an ion exchange membrane electrolytic cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.