Method to remediate soil using a surfactant of an alkenylsuccinic anhydride or acid reacted an amine acid or salt of an amine acid
US6326187A · kind A · utility
19Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Oct 14, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C1/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Soil, which is contaminated by one or more hydrophobic organic chemicals, can be cleaned or remediated using an aqueous composition with a surfactant prepared by reacting an alkenylsuccinic anhydride or acid with an amine acid or salt of an amine acid. The surfactant allows at least a portion of the hydrophobic organic chemical to be removed from the soil by becoming associated with the aqueous composition, which is then separated from the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.