High temperature metal recovery process
US6602322B2 · kind B2 · utility
4Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Sep 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/961
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved method and apparatus for recovering metal values from Electric Arc Furnace dust, particularly zinc and iron values, by mixing EAF dust and carbonaceous fines to form a particulate mixture; heating the mixture at a sufficient temperature and for a sufficient time to reduce and release volatile metals and alkali metals in a flue gas; collecting the released metals, and removing the metal values from the process as product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.