Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1997-08-04
2000-07-04
Drodge, Joseph
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210511, 422 69, B01D 1100
Patent
active
060833998
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.
REFERENCES:
patent: 524702 (1894-08-01), Browning
patent: 2507851 (1950-05-01), Bryant et al.
patent: 3198948 (1965-08-01), Olson
patent: 3257561 (1966-06-01), Packard et al.
patent: 3522725 (1970-08-01), Waters
patent: 3537585 (1970-11-01), Waters
patent: 3872723 (1975-03-01), Busch
patent: 4032445 (1977-06-01), Munk
patent: 4064908 (1977-12-01), Loe
patent: 4217931 (1980-08-01), Jaekel
patent: 4225290 (1980-09-01), Allington et al.
patent: 4265860 (1981-05-01), Jennings et al.
patent: 4375163 (1983-03-01), Yang
patent: 4476732 (1984-10-01), Yang
patent: 4477266 (1984-10-01), Yang
patent: 4483773 (1984-11-01), Yang
patent: 4564145 (1986-01-01), Takada et al.
patent: 4597943 (1986-07-01), Sugiyama et al.
patent: 4600365 (1986-07-01), Riggenmann
patent: 4676897 (1987-06-01), Kuze et al.
patent: 4705459 (1987-11-01), Buisine et al.
patent: 4711764 (1987-12-01), Good
patent: 4724087 (1988-02-01), Michel
patent: 4770780 (1988-09-01), Moses
patent: 4790236 (1988-12-01), Macdonald et al.
patent: 4814089 (1989-03-01), Kumar
patent: 4820129 (1989-04-01), Magnussen
patent: 4851683 (1989-07-01), Yang
patent: 4871453 (1989-10-01), Kumar
patent: 4902891 (1990-02-01), Vestal
patent: 4913624 (1990-04-01), Seki
patent: 4915591 (1990-04-01), Funke
patent: 4984602 (1991-01-01), Saito et al.
patent: 4998433 (1991-03-01), Stumpf et al.
patent: 5013443 (1991-05-01), Higashidate et al.
patent: 5075017 (1991-12-01), Hossain 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: 5116508 (1992-05-01), Kumar et al.
patent: 5133859 (1992-07-01), Frank et al.
patent: 5147538 (1992-09-01), Wright et al.
patent: 5151178 (1992-09-01), Nickerson et al.
patent: 5160624 (1992-11-01), Clay et al.
patent: 5164693 (1992-11-01), Yokoyama 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: 5193991 (1993-03-01), Koebler et al.
patent: 5198197 (1993-03-01), Clay et al.
patent: 5205987 (1993-04-01), Ashraf-Khorassani et al.
patent: 5240603 (1993-08-01), Frank et al.
patent: 5241998 (1993-09-01), Ashraf-Khorassani
patent: 5253981 (1993-10-01), Yang et al.
patent: 5268103 (1993-12-01), Jameson et al.
patent: 5271903 (1993-12-01), Durst et al.
patent: 5316262 (1994-05-01), Koebler
patent: 5322626 (1994-06-01), Frank et al.
patent: 5363886 (1994-11-01), Ashraf-Khorassani
patent: 5372716 (1994-12-01), Levy et al.
patent: 5379790 (1995-01-01), Bruce et al.
patent: 5453198 (1995-09-01), Ashruf-Khorassani et al.
patent: 5458783 (1995-10-01), Levy et al.
patent: 5653885 (1997-08-01), Jameson et al.
patent: 5866004 (1999-02-01), Houck et al.
Handbook of Chemistry and Physics, 48th Edition, 1967-1968, Robert C. Weast & Samuel M. Selby, p. E-5, 1968.
"Portable Thermal Pump for Supercritical Fluid Delivery", Analytical Chemistry 67 (1995) Jan. 1, No. 1, p.212-219.
Wright, B.W., et al., 1987, "Analytical Supercritical Fluid Extraction of Adsorbent Materials", Anal. Chem., 59:38-44.
Sugiyama, K., et al., 1985, "New Double-Stage Separation Analysis Method: Directly Coupled Laboratory-Scale Supercritical Fluid Extraction-Supercritical Chromatography, Monitored With A Multiwavelength Ultraviolet Detector", J. Chromatog., 332:107-116.
Hawthorne, S.B., et al., 1986, "Extraction and Recovery of Organic Pollutants from Environmental Solids and Tenax-GC Using Supercritical CO.sub.2 ", J. Chromatog. Science, 24:258-264.
Hawthorne, S.B., et al., 1987, "Extraction and Recovery of Polycyclic Aromatic Hydrocarbons from Environmental Solids Using Supercritical Fluids", Anal. Chem., 59:1705-1708.
Schantz, M.M., et al., 1986, "Supercritical Fluid Extraction Procedure for the Removal of Trace Organic Species from Solid Samples", J. Chromatogr., 363:397-401.
Wright, B.W., et al., 1989, "Supercritical Fluid Extraction of Coal Tar Contaminated Soil Samples", Energy & Fuels, 3:474-480.
Lee, M.L., et al., 1979, "Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons", Anal. Chem., 51(6):768-774.
Vassilaros, D.L., et al., 1982, "Linear Retention Index System For Polycyclic Aromatic Compounds", J. Chromatogr., 252:1-20.
Czubryt, J.J., et al., 1970, "Solubility Phenomna in Dense Carbon Dioxide Gas in the Range 270-1900 Atmospheres", J. Phys. Chem., 74(24):4260-4266.
Wise, S.A., et al., 1988, "Determination of Polycyclic Aromatic Hydrocarbons in a Coal Tar Standard Reference Material", Anal. Chem., 60:887-894.
Villaume, J.F., 1984, "Coal Tar Wastes: Their Environmental Fate and Effects", Hazardous and Toxic Wastes: Technology, Management, and Health Effects, Chapter 25, S.K. Majumdar and E.W. Miller, Eds., pp. 362-375.
Maxwell, R.J., et al., 1992, "Improved SFE Recovery of Trace Analytes from Liver Using an Intergral Micrometering Valve-SPE Column Holder Assembly", J. High Resolution Chromatogr., 15:807-811.
Levy, J.M., et al., 1990, "Qualitative Supercritical Fluid Extraction Coupled to Capillary Gas Chromatography", J. High Resolution Chromatog., 13:418-421.
Levy, J.M., et al., 1991, "The Use of Alternative Fluids in On-Line Supercritical Fluid Extraction-Capillar Gas Chromatography", J. High Resolution Chromatogr., 14:661-668.
Wright, B.W., et al., 1992, "Evaluation of a Field-Portable Supercritical Fluid Extraction Apparatus for Rapid Characterization of Contaminated Soils", Waste Testing and Quality Assurance: Third Volume, D. Friedman, Eds., pp. 3-14.
Richter, B.E., 1985, "Modified Flame Ionization Detector for the Analysis of Large Molecular Weight Polar Compounds by Capillary Supercritical Fluid Chromatography", J. High Resolution Chromatogr. Communications, 8:297-300.
Daimon, H., et al., 1991, "Directly Coupled Supercritical-Fluid Extraction/Capillary Supercritical-Fluid Chromatography of Polymer Additives", Chromatographia, 32:549-554.
Levy, J.M., et al., 1989, "Quantitative Supercritical-Fluid Extraction Capillary Coupled to Gas Chromatography", Chromatographia, 28:613-616.
Nielen, M.W.F., et al., 1989, "On-line System for Supercritical Fluid Extraction and Capillary Gas Chromatography with Electron-Capture Detection", J. Chromatog., 474:388-395.
Raynor, M.W., et al., 1988, "Supercritical Fluid Extraction/Capillary Supercritical Fluid Chromatography/Fourier Transform Infrared Microspectrometry of Polycyclic Aromatic Compounds in a Coal Tar Pitch", J. High Resolution Chromatog. & Chromatog. Communications, 11:766-775.
Hawthorne, S.B., et al., 1989, "Coupled SFE-GC: A Rapid and Simple Technique for Extracting, Identifying, and Quantitating Organic Analytes Solids and Sorbent Resins", J. Chromatog. Science, 27:347-354.
Berger, T.A., et al., 1989, "Linear Velocity Control in Capillary Supercritical Fluid Chromatography by Restrictor Temperature Programming", J. Chromatog., 465:157-167.
Lipsky, S.R., et al., 1986, "High Temperature Gas Chromatography: The Development of New Aluminum Clad Flexible Silica Glass Capillary Columns Coated with Thermostable Nonpolar Phases: Part 1", J. High Resolution Chromatog. & Chromatog. Communications, 9:376-382.
Green, S., et al., 1988, "Simple Restri
Allington Robert W.
Jameson Daniel Gene
Macomber Robert Joseph
Carney Vincent L.
Drodge Joseph
Isco, Inc.
LandOfFree
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.
Profile ID: LFUS-PAI-O-1482832