Liquid-liquid extraction trays
US6569390B1 · kind B1 · utility
2Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 2000 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | May 4, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Cartridge type extraction trays for use in a small diameter liquid-liquid extraction column comprise a novel vertical wall which surrounds the active (perforated) area of the tray. This wall extends upward to a sufficient height to retain the heavy liquid on the active area of the tray preventing the heavy liquid from reaching the edge of the tray when it may possibly leak downward due to a gap between the edge of the tray and the inner surface of the column wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.