Water managed solvent extraction process for the organic wastes
US5573672A · kind A · utility
6Cited by
20References
22Claims
0Family size
Inventors
Key dates
| Filing date | Mar 21, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Mar 21, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/904
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a process for separating extractable organic material from a composition comprising organic material intermixed with solids and water. The composition is contacted with a solvent and a dehydrating agent. The dehydrating agent removes water, improves the solvent extraction, and aids in later separation of the solids from the solvent. The process additionally provides a means for removing cyanide compounds from the composition and fixating the metals against leaching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.