Method of preparing asbestos diaphragms for electrolysis cell
US4208246A · kind A · utility
1Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1978 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Feb 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B13/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Diaphragms of deposited asbestos which are consolidated by a polymer are prepared by the steps of dispersing a polymer emulsion into asbestos fibers dispersed in an aqueous solution of a cellulose ether or a high molecular weight polyether polyol, depositing the asbestos fiber slurry on a metal screen cathode by means of filtration, and drying the deposited asbestos fibers. The asbestos fibers are deposited evenly on a cathode of commercial size and the diaphragms are consolidated satisfactorily by the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.