Method for recovering metals contained in spent catalysts from ferro-alloys
US12392012B2 · kind B2 · utility
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Key dates
| Filing date | Mar 17, 2020 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention includes a method for treating a spent catalyst containing at least one refractory mineral oxide, one or more metals in the form of sulfide(s) chosen from the following metals: molybdenum, nickel, cobalt, tungsten, vanadium, and carbon compounds, the method comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.