Simulated moving bed adsorptive separation apparatus
US5705061A · kind A · utility
18Cited by
16References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Nov 25, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D15/1821
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Various chemicals such as pharmaceuticals and petrochemicals are chromatographically separated in small quantities using an apparatus comprising a number of serially connected adsorbent-containing chambers. The chambers are linked together with valving necessary to simulate the continuous countercurrent flow of the adsorbent and liquid phases. The apparatus employs three three-port valves per chamber to direct liquid flow. Pressure pairing of the valves and the four major process streams protects product purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.