Apparatus for countercurrent liquid-liquid extraction
US3988116A · kind A · utility
3Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Feb 27, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a sieve tray extraction column useful for performing liquid-liquid extractions. The sieve trays are made in the form of tubular members with an open top end and one or more openings in the bottom end and in the side of the member. Each tubular member is of smaller diameter than the column and is sealed to the inside of the column wall at the top end only. An annular space is thus defined between each tubular member and the inner column wall. In this structure the annular space functions as an upcomer or downcomer for passage of the solvent liquid through the column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.