Process for removing contaminants from soils
US4606774A · kind A · utility
34Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1984 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jul 30, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C1/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
There is described a process in which a contaminated soil is freed of its contaminants and the solvent used to free and wash the contaminated soil is collected and reused and/or it is combusted and removed from the system in a form which will not contaminate the ambient atmosphere. All portions of this equipment are substantially gas tight and liquid tight and therefore eliminate or markedly reduce any further contamination of the ambient atmosphere with the contaminants found in the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.