Cleaning process using carbon dioxide as a solvent and employing

Details Cleaning process using carbon dioxide as a solvent and employing Cleaning process using carbon dioxide as a solvent and employing

1997-05-02

1999-08-31

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210638, 210767, 134 10, 134 11, B01D 1100

Patent

active

059449969

ABSTRACT:
The separation of a contaminant from a substrate that carries the contaminant is disclosed. The process comprises contacting the substrate to a carbon dioxide fluid containing an amphiphilic species so that the contaminant associates with the amphiphilic species and becomes entrained in the carbon dioxide fluid. The substrate is then separated from the carbon dioxide fluid, and then the contaminant is separated from the carbon dioxide fluid.

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