Process and installation for the separation of heavy and light compounds by extraction using a supercritical fluid and nanofiltration
US5961835A · kind A · utility
12Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Jun 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B7/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and installation for the separation of heavy and light compounds is provided. According to the process, a solid or liquid phase containing the compounds to be separated is contacted with a supercritical fluid in an extractor, after which the supercritical fluid containing compounds leaving the extractor undergo nanofiltration for recovering a permeate flow containing the light compounds and a retentate flow containing the heavy compounds. The invention has particular utility for separating fats in food stuffs such as butter or fish oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.