Treatment of high sulphur solids
US9650694B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Aug 19, 2014 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Aug 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process of treating a solid material containing lead and elemental sulphur, by feeding the solid material to a furnace containing a bath of molten slag under conditions such that elemental sulphur burns in the furnace to form sulphur dioxide and lead in the solid material is oxidized and reports to the slag, then removing a gas stream containing sulphur dioxide from the furnace, and finally removing a lead-containing slag from the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.