Liquid purification or separation – Flow – fluid pressure or material level – responsive – Maintaining stream pressure or flow
Patent
1995-03-03
1997-07-15
Spear, Frank
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Maintaining stream pressure or flow
210450, 210634, B01D 1100
Patent
active
056479760
ABSTRACT:
An extraction cell apparatus (10) for use in elevated pressure and temperature fluid extractions having a pressure resistant vessel (12) forming a cavity (11), and at least one shoulder portion (13) defining an opening (14) communicating with the cavity (11). An insert member (16) is provided engaging the vessel (12) proximate the shoulder portion (13), and a shoulder seal member (17) is positioned proximate the insert member (16). The seal member (17) is positioned for contact with the shoulder portion (13) upon mounting engagement of the insert member (16) with the seal member (17). An end cap (18) is formed for sliding receipt of the insert member (16) therein until an interior surface (19) of the end cap (18) contacts a backside of the seal member (17). An exterior force applied to the end cap (18) in an inwardly direction toward the shoulder portion (13) causing increasing sealing contact between the seal member (17) and the shoulder portion (13).
REFERENCES:
patent: 4554132 (1985-11-01), Collins
patent: 5147551 (1992-09-01), Averette
patent: 5193703 (1993-03-01), Staats, III et al.
patent: 5198197 (1993-03-01), Clay
patent: 5268103 (1993-12-01), Jameson et al.
Schnitzer, M. et al., "Supercritical Gas Extraction of a Soil with Solvents of Increasing Polarities.sup.1 ", Soil Sci. Soc. Am J., vol. 51: 639-646 (1987).
Schnitzer, et al., "Supercritical Gas Extraction of Alkanes and Alkanoic Acids", Soil Sci. Soc. Am., vol. 30: 913-919 (1986).
Schnitzer, et al., "Organic Matter Extraction form Soils with Water at High Pressure and Temperatures", Soil Sci. Soc. Am J., vol. 55: 102-108 (1991).
Nielson, R. et al., "Extraction and Quantitation of Polyolefin Additives", Journal of Liquid Chromatography, vol. 41(3): 503-519 (1991).
Freitag, W. et al., "Fast Separation of Stabilizers from Plyolefins by Microwave Heating", Die Angewandte Makromolekulare Chemie, 175: 181-185 (1990).
Fernando, L. et al., "Closed-Vessel Microwave dissolution and Comprehensive Analysis of Steel by Direct Current Plasma Atomic Emisson Spectrometry", Anal. Chem., vol. 58: 511-512 (1986).
Fischer, L. et al., "Microwave Dissolution of Geologic Material: Application to Isotape Dilution Analysis", Anal. Chem., vol. 58: 261-263 (1986).
Kingston, H.M. et al., "Microwave Energy for Acid Decomposition at Elevated Temperatures and Pressures using Biological and Botanical Samples", Anal. Chem., vol. 58: 2534-2541 (1986).
Rezaaiyan R. et al., "A Comparison of Mineral Extraction Techniques of Citrus Juices as Analyzed by Inductively Coupled Plasma Atomic Emission Spectrometry", Journal of Food Science, vol. 55(5): 1359-1360 (1990).
Nieuwenhuize, J. et al., "Comparison of Microwave and Conventional Extraction Techniques for the Determination of Metals in Soil, Sediment and Sludge Samples by Atomic Spectrometry", Analyst, vol. 116: 347-351 (1991).
Campbell, M. et al., "High-pressure Microwave Digestion for the Determination of Arsenic, Antimony, Selenium and Mercury of Oily Wastes", Analyst, vol. 117: 121-124 (1992).
Ganzler, K. et al., "Effective sample preparation method for extracting biologically active compounds from different matrices by a microwave technique", Journal of Chromatography, vol. 520: 257-262 (1990).
Ganzler, K. et al., "A New Method for the Extraction and High-performance Liquid Chromatographic Determination of Vicine and Convicine in Fababeans", Chromatography, Pgs. 435-443 (1984).
Mahan, K. et al., "Microwave Digestion Techniques in the Sequential Extraction of Calcium, Iron, Chromium, Manganese, Lead, and Zinc in Segments", Anal. Chem., vol. 59: 938-945 (1987).
Ganzler, K. et al., "Microwave Extraction A Novel Sample Preparation Method for Chromatography", Journal of Chromatography, vol. 371: 299-306 (1986).
Hocquellet, P. et al., "Evaluation of Microwave Digestion and Solvent Extraction for the Determination of Trace Amounts of Selenium in Fees and Plant Animal Tissues by Electrothermal Atomic Absorption Spectrometry" Analyst, vol. 116: 505-509 (1991).
Capriel, P., et al., "Supercritical Methanol: An Efficacious Technique for the Extraction of Bound Pesticide Residues from Soil and Plant Samples", J. Agric. Food Chem., vol. 34: 70-73 (1986).
Lautenschlaeger, W., "Microwave Digestion in a Closed-Vessel, High-Pressure System", Spectroscopy International, vol. 2(2): 18-22 (1990).
Gleave Gary L.
Rothe Norman J.
Dionex Corporation
Spear Frank
LandOfFree
High pressure and temperature cell for solvent 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 High pressure and temperature cell for solvent extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure and temperature cell for solvent extraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1490087