Method and device for separating constituents of a liquid charge by means of liquid-liquid centrifuge chromatography
US7422685B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 28, 2004 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Mar 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for separating constituents of a liquid feed by liquid-liquid centrifugal chromatography and to a device for implementing it. Constituents (A, B) having different partition coefficients such that they are respectively carried along at unequal velocities by a light solvent (1) and a heavier solvent (L), the feed is continuously injected at an intermediate point of a separation column (col), successive cycles comprising alternately a heavy solvent injection stage and a light solvent injection stage are carried out respectively at the two ends of the column consisting of the interconnection in series of at least one set of separation cells, and the separated solvents (FA, FB) are collected during each one of said stages at the column ends opposite the solvent injection points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.