Apparatus and method for supercritical fluid extraction

Details Apparatus and method for supercritical fluid extraction Apparatus and method for supercritical fluid extraction

1993-03-05

1993-12-14

Sever, Frank

Liquid purification or separation

Processes

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

422256, B01D 1100

Patent

active

052699307

ABSTRACT:
To collect analyte in a supercritical fluid extraction process, the extractant flows to a collection container under pressure. In one embodiment, the collection container contains collection solvent through which the extractant flows to partition analyte. The extractant adds to the liquid and when the collection solvent-extractant mixture rises to a heating zone, the extractant vaporizes selecively since its vapor pressure is higher than the vapor pressure of the collection solvent. When its pressure exceeds a preset valve pressure it is vented so that extractant continually leaves the collection container. After the extraction is complete, the analyte is concentrated in the collection solvent. In another embodiment, the collection vessel includes a solid material on which the analyte collects. It is removed under pressure by a solvent that is concentrated under pressure.

REFERENCES:
patent: 4770780 (1988-09-01), Moses

Affiliated with

Also associated with

Rating

Apparatus and method for supercritical fluid extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for supercritical fluid extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for supercritical fluid extraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1702410