High speed preparative countercurrent chromatography with a multiple layer coiled column
US4430216A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1982 |
| Grant date | Feb 7, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/048
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A horizontal flow-through apparatus for two-phase countercurrent chromatography consisting of a horizontal multi-layer helically coiled column carried on a flanged reel which is rotated about its own axis and simultaneously revolved around a stationary central parallel horizontal pipe at the same angular velocity and in the same direction to prevent twisting of its inlet and outlet flow tubes, which extend through the stationary central pipe. The multi-layer array can retain a large volume of the stationary phase against a high flow rate of the mobile phase, enabling the separation of the sample components to be completed in a relatively short period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.