Removal of substances from metal and semi-metal compounds
US7790014B2 · kind B2 · utility
2Cited by
18References
73Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2004 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jan 13, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25F1/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention pertains to a method for removing a substance (X) from a solid metal or semi-metal compound (M1X) by electrolysis in a melt of M2Y, which comprises conducting the electrolysis under conditions such that reaction of X rather than M2 deposition occurs at a electrode surface, and that X dissolves in the electrolyte M2Y. The substance X is either removed from the surface (i.e., M1X) or by means of diffusion extracted from the case material. The temperature of the fused salt is chosen below the melting temperature of the metal M1. The potential is chosen below the decomposition potential of the electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.