Continuous liquid extraction process with periodic flow of the denser stream
US3979281A · kind A · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1974 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Dec 16, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid-liquid extraction process utilizing a tower having perforated contacting trays. The discontinuous flow of the denser downward moving stream prevents the backmixing of this stream on the contacting trays and increases the efficiency of the extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.