Method and apparatus for supercritical fluid extraction solution separation
US4962275A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1990 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Feb 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for the separation of a desired product from a supritical fluid extraction solution employ a restrictor nozzle, a coarse-pore sintered-glass enclosure member and a collecting means for collecting an oil suspension of the desired product. The supercritical fluid extraction solution is decompressed by passing through the restrictor nozzle. The resulting decompressed fluid stream is directed at the enclosure member which is saturated with an oil in which the desired product is soluble. Solutes including the desired product are dissolved in the oil, and the oil is collected. The method and apparatus are particularly suitable for use in separating .beta.-carotene from a carbon dioxide solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.