Method for fractionating a solution
US5730877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Oct 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D15/361
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method for fractionating a solution by a chromatographic simulated moving bed method in which the liquid flow is effected in a system comprising at least two sectional beds in different ionic forms. The fractions enriched with different components are recovered during a multi-step sequence including the following operations, i.e., phases: feeding phase, eluting phase, and recycling phase. The liquid present in the sectional packing material beds with its dry solids concentration profile is recycled during the recycling phase in a loop comprising one, two, or more sectional packing material beds. The method can be employed for the following examples, fractionating sulphite cooking liquor, molasses, and vinasse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.