Incinerated waste material treatment
US5174509A · kind A · utility
10Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Jun 21, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/38
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Apparatus and processes for treating an incinerated waste material feedstock to obtain a "free-from-ash" ferrous metal product are disclosed which provide for early separation of the initial feedstock into a predominately ash stream and predominately ferrous metal stream by a two step separation based on size of the material and use of dual trommels or special bar screens and dual magnet arrangements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.