Method of producing metal hydroxides
US5384017A · kind A · utility
11Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Mar 5, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Metal hydroxides are produced in an easy-to-separate powder form from metal in solution, by passing an electric current through the solution to produce the formation of a preceipitated hydroxide against a solid ion-exchange membrane, which membrane separates the anode compartment from the cathode compartment. When the solution is acidic, the membrane is an anion exchange membrane. When the solution is basic, the membrane is a cation exchange membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.