High purity alkaline earths via electrodeposition
US4801363A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/42
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Included is a process for electrodepositing a high purity metallic containing alkaline earth metal on a conductive substrate comprising operating an electrochemical cell having PA1 (1) an anode selected from the group consisting of a passive anode and a sacrificial alkaline earth metal containing anode; PA1 (2) an electrolyte containing an aprotic solvent and a solute of a minor amount of residual halogen containing synergist and a major amount of residual alkaline earth metal, and PA1 (3) a cathode, which contains the conductive substrate, under conditions whereby said electrodepositing occurs. For example, a most pure crystalline magnesium deposit can be prepared with tetrahydrofuran, aluminum trichloride and ethylmagnesium chloride, employing either an inert carbon, or a sacrificial magnesium containing, anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.