Process for treating metal-contaminated materials
US5556447A · kind A · utility
48Cited by
17References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2900/50206
- WIPO fieldMaterials, metallurgy
- 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.