Gradient-elution multi-column separation method
US8752417B2 · kind B2 · utility
6Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D15/1864
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method for separating fractions of a mixture to be separated including the steps of providing a device comprising at least two chromatography columns mounted in series, discontinuously injecting a mixture to be separated, in a single point of the device, discontinuously drawing off the fraction enriched in the product of interest, in a single point of the device, and injecting eluents in each column and displacing the points for injection eluents, the eluents having a different eluting power. The method allows efficient separation which is simple to perform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.