Purification of tungsten carbide compositions
US9656873B2 · kind B2 · utility
4Cited by
17References
24Claims
0Family size
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Key dates
| Filing date | Nov 20, 2014 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Oct 1, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B32/949
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In one aspect, methods of purifying WC compositions are described herein. A method of purifying a WC composition comprises contacting the WC composition with an electrolyte solution comprising a cationic metal oxidant and oxidizing one or more metal impurities of the WC composition with the cationic metal oxidant to solubilize the one or more metal impurities in the electrolyte solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.