Self-purging extractor
US5770082A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | May 2, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B1/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved longitudinal extractor utilizing a solvent for removing an entrained liquid from a carrier medium. The improved extractor includes a sprocket driven continuous chain-link conveyor mounted both in cooperation with an upper carrier medium chamber and a lower liquid collection chamber. The chain link conveyor has an upper run which moves the carrier medium past sparging solvent nozzles and a lower run which cleans the collection chamber by continuously scraping the bottom of the collection chamber free of sedimentation and hazardous build-up. The carrier medium is supported on a plurality of spaced-apart longitudinal members which allow the miscible fluid resulting from percolation removal to flow therebetween into the collection chamber. A plurality of spaced-apart collectors are arranged along the bottom of the collection chamber to provide for continuous removal of the miscible fluid from the collection chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.