Process for treating metal-contaminated materials
US5245120A · kind A · utility
64Cited by
13References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Dec 27, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating wastes contaminated by toxic metals and/or organic materials is disclosed. The process involves heating the metal-contaminated wastes to a temperature sufficient to volatilize the metals. This temperature is also high enough to destroy or volatilize organic contaminants. The metal vapors are contacted with a sorbent which is reactive with the metals and sequesters them, thereby forming a non-leachable complex which can be disposed as non-hazardous conventional waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.