Title:
【発明の名称】超臨界流体抽出装置及び方法
Document Type and Number:
Japanese Patent JP3432513
Kind Code:
B2
Abstract:
To avoid deposits on the restrictor that channels extractant into a collector, a heated capillary tube pressure release restrictor, has a thermally insulated outlet end in a collecting trap substantially colder than the capillary tube. The restrictor is heated between the insulation and the capillary tube by Joulean heating. The solvent in the trap is at a pressure of 5 to 200 psi above atmospheric pressure. The thermal resistance of the insulation is selected to reduce the heat added to the extractant to a minimum and yet cause the temperature of the extractant to be in a range within which it is sufficiently hot so it does not freeze when added to the collection solvent but not so hot as to reduce partitioning of the extract and extractant before the extractant leaves the collection solvent. It has a thermal conductivity no greater than 60 BTU's per hour, per square foot, per inch for a one degree Fahrenheit difference.
Inventors:
Jameson, Daniel Jean
MacConver, Robert Joseph
Arlington, Robert William
MacConver, Robert Joseph
Arlington, Robert William
Application Number:
JP52012994A
Publication Date:
August 04, 2003
Filing Date:
March 02, 1994
Export Citation:
Assignee:
ISCO INCORPORATED
International Classes:
B01D11/00; B01D11/02; B01D11/04; F04B9/04; F04B15/08; F04B49/06; F16K15/18; G01F1/34; G01N1/34; G01N1/40; G01N30/28; G21F5/015; G01N30/02; G01N30/60; G01N35/04; (IPC1-7): B01D11/00
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)