Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1995-09-08
1999-02-02
Drodge, Joseph W.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210136, 210143, 210180, 210181, 210511, 422 63, 422 64, 422 69, 422102, 436178, B01D 1100
Patent
active
058660046
ABSTRACT:
A supercritical fluid extraction (SFE) system. The SFE system includes a mechanism for providing supercritical fluid for extracting analyte from a sample. The SFE system also includes an extraction vessel and a mechanism for moving the extraction vessel into fluidic communication with the SFE system so that supercritical fluid can flow through the extraction vessel and extract analyte from the sample. Preferably, the SFE system is additionally comprised of a mechanism for holding a plurality of extraction vessels and an extraction chamber assembly. In this design, the moving mechanism selectively moves an extraction vessel from the holding mechanism into the extraction chamber in fluidic communication with the SFE system. Preferably, the SFE system further includes a computer for controlling the functions of the SFE system. The computer, for instance, could automatically and sequentially control the supercritical fluid extractions of the samples within the holding mechanism. The SFE system preferably includes a mechanism for collecting analyte from the fluid with analyte. The collecting mechanism is in fluid communication with extraction chamber assembly and preferably includes a restrictor for controlling the flow of fluid with analyte to the collecting mechanism. The restrictor converts the fluid with analyte from a first supercritical pressure to a second pressure which is less than the first supercritical pressure.
REFERENCES:
patent: 4683063 (1987-07-01), Rice
patent: 4814089 (1989-03-01), Kumar
patent: 4892654 (1990-01-01), Nickerson
patent: 5009778 (1991-04-01), Nickerson et al.
patent: 5087360 (1992-02-01), Wright et al.
patent: 5094741 (1992-03-01), Frank et al.
patent: 5094753 (1992-03-01), Allington et al.
patent: 5132014 (1992-07-01), Allington et al.
patent: 5133859 (1992-07-01), Frank et al.
patent: 5151178 (1992-09-01), Nickerson et al.
patent: 5151188 (1992-09-01), Hopper et al.
patent: 5160624 (1992-11-01), Clay et al.
patent: 5173188 (1992-12-01), Winter et al.
patent: 5178767 (1993-01-01), Nickerson et al.
patent: 5180487 (1993-01-01), Saito et al.
patent: 5193703 (1993-03-01), Staats et al.
patent: 5237824 (1993-08-01), Pawliszyn
patent: 5260028 (1993-11-01), Astle
patent: 5271903 (1993-12-01), Durst et al.
patent: 5286652 (1994-02-01), James et al.
Bauer, Jr. Paul A.
Houck Raymond K.
Kato Kenneth J.
Koebler Douglas J.
Parks Robert D.
Drodge Joseph W.
Schwartz Ansel M.
Suprex Corporation
LandOfFree
Automated supercritical fluid extraction method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automated supercritical fluid extraction method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated supercritical fluid extraction method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1113824