Liquid-liquid extraction
US5741423A · kind A · utility
Inventors
Key dates
| Filing date | Apr 18, 1997 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Apr 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/255
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method/apparatus for extracting substance from carrier liquid in first container into an immiscible extraction liquid of different density in second container receiving and locating the first. Substance transfers to extraction liquid at liquids admixture in second container aided by flow control and fine division of carrier liquid force supplied into extraction liquid. Separated liquids receive separator member cooperating with second container as physical barrier with only separated extraction and acquired substance at one side. Centrifuging produces three-stage dividing flow of carrier liquid on the second container wall. Moulded parts suit single use in centrifuge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.