Method and system for removing and/or causing recycling of materials
US5435835A · kind A · utility
8Cited by
36References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jan 6, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A system and process for treating dust and sludge from iron and steel making operations and includes separating iron and carbon from zinc and lead. Separation is performed in a series of hydrocyclones associated in a series-parallel fashion, The iron and carbon is recycled within the iron making operation without detriment to furnace liners, Lime and flocculent are added to the lead and zinc to create a stable material suitable for landfill disposal, Sludges are consumed by injection onto a sinter strand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.