Process for the treatment of flue particulates
US5512257A · kind A · utility
10Cited by
11References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1995 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | May 24, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fly ash from incineration plants is treated with an acidic aqueous solution for the purpose of removing heavy metals. The residual solid matter is filtered. The filtration residue is treated with a precipitating agent for heavy metals. The thereby obtained inert residue can be directly dumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.