公开(公告)号：EP0639099A4

公开(公告)日：1996-11-06

申请号：EP94911446

申请日：1994-03-02

Applicant: ISCO INC

Inventor： CLAY DALE LEE ,  ALLINGTON ROBERT WILLIAM ,  LIESCHESKI PHILLIP BEARNARD II ,  WINTER ROBIN RANDALL ,  JAMESON DANIEL GENE

IPC: B01D11/00 ,  B01D11/02 ,  B01D11/04 ,  F04B9/04 ,  F04B15/08 ,  F04B49/06 ,  F16K15/18 ,  G01F1/34 ,  G01N1/34 ,  G01N1/40 ,  G01N30/02 ,  G01N30/28 ,  G01N30/60 ,  G01N35/04 ,  G21F5/015

CPC classification number: F04B9/042 ,  B01D11/0203 ,  B01D11/0407 ,  F04B15/08 ,  F04B49/065 ,  F04B2205/03 ,  F04B2205/05 ,  F04B2205/09 ,  F05B2230/41 ,  F05C2201/0493 ,  F05C2253/12 ,  F16K15/183 ,  G01F1/34 ,  G01N1/34 ,  G01N1/40 ,  G01N30/02 ,  G01N30/28 ,  G01N2001/4033 ,  G01N2001/4061 ,  G01N2030/6013 ,  G01N2035/0441 ,  G21F5/015 ,  B01D15/40

Abstract: To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges (30A) are lifted one by one in series by an elevator plug into a pressure chamber (24A). An inlet at the top of the cartridge (30A) engages a pressure vessel inlet for the extractant so that extractant flows into the cartridge (30A) and into the space between the cartridge and inner walls of the pressure chamber (24A). The outlets from the cartridge (30A) and pressure vessel communicate with the collector (408) and exhaust through passageways in the plug. The plug has cleaning ports for cleaning seals and the outlet from the cartridge (30A) flows past the seals. The collector (408) lifts vials into place and can precool the collection solvent, and later as part of the collection procedure, heat and pressurize the collector (408).