Method for processing and recycling zinc-rich iron metallurgy side products
US8668761B2 · kind B2 · utility
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Key dates
| Filing date | May 29, 2009 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | May 29, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for processing metallurgic residue that is obtained from electric steelworks dust, ESD, essentially containing iron and zinc in the form of zinc oxide and zinc ferrites, as well as a processing of the blast-furnace slags, BFS, and a combination with a synergy effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.