Composite membranes for solid phase extractions and reactions

Details Composite membranes for solid phase extractions and reactions Composite membranes for solid phase extractions and reactions

1995-05-23

1996-06-25

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

2101983, 2105021, 210505, B01D 1508

Patent

active

055296866

ABSTRACT:
A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.

REFERENCES:
patent: 4153661 (1979-05-01), Ree et al.
patent: 4344775 (1982-08-01), Klein
patent: 4648977 (1987-03-01), Garg et al.
patent: 4650575 (1987-03-01), White
patent: 4664812 (1987-05-01), Klein
patent: 4740219 (1988-04-01), Kulprathipanja et al.
patent: 4744374 (1988-05-01), Deffeves
patent: 4810381 (1989-03-01), Hagen et al.
patent: 4826497 (1989-05-01), Marcus et al.
patent: 4828698 (1989-05-01), Jewell
patent: 4855154 (1989-08-01), Gioffre et al.
patent: 4906378 (1990-03-01), Hagen et al.
patent: 4933229 (1990-06-01), Insley
patent: 4971736 (1990-11-01), Hagen et al.
patent: 5013335 (1991-05-01), Marcus
patent: 5071565 (1991-12-01), Fritz et al.
patent: 5071610 (1991-12-01), Hagen et al.
patent: 5100596 (1992-03-01), Hang et al.
patent: 5108597 (1992-04-01), Funkenbusch
patent: 5147539 (1992-09-01), Hagen et al.
patent: 5207915 (1993-05-01), Hagen et al.
patent: 5279742 (1994-01-01), Markell et al.
patent: 5328758 (1994-07-01), Markell et al.
Rostad, et al., "Bonded-Phase Extraction Column Isolation of Organic Compounds in Groundwater at a Hazardous Waste Site", Anal. Chem., 1984, 56 2856-2860.
Hagen et al., "Membrane Approach to Solid Phase Extraction", Anal. Chim. Acta, 1990, 236, 157-164.
Markell et al., "New Technologies in Solid Phase Extraction," LC/GC 1991 9, No. 5, pp. 322-337.
C. Colella et al.,"Lead Removal from Waste Waters Using Chabizite Tuff," Perspectives in Molecular Sieve Science, Flank, W. H. and Whyte Jr., T. e., Ed. ACS Symposium Series, 386, Am. Chem. Soc., Washington, DC 1988, pp. 500-510.
K. Otto, et al., "Adsorption of Hydrocarbons and Other Exhaust Components on Silicalite", Ind. Eng. Chem. Res., 1991, 30, 2333-2340.
C. D. Chriswell et al., "Use of Silicalite Molecular Sieve for Gas Chromatographic Determination of Permanent Gases and Volatile Hydrocarbons Emitted During Coal Processing", J. Chromatogr., 1987, 405, 213-221.
C. D. Chriswell & D. T. Gjerde, Anal. Chem., 1982, 54, 1911-1913.
G. M. W. Schultz-Sibbel et al., "Analytical Investigation of the Properties and uses of a New Hydrophobic Molecular Sieve", Talanta, 1982, 29, 447-252.
E. M. Flanigen et al., "Silicalite, A New Hydrophobic Crystalline Silica Molecular Sieve", Nature, 1978, 271, 512-516.
Patent Abstracts of Japan, vol. 18, No. 371 (C-1224) & JP,A,06 099044 (Agency of Ind. Science & Technol.) (abstract) (12 Apr. 1994).
Database WPI Week 9213, Derwent Publications Ltd., London, GB; AN 92-101976 & JP,A,04 045 829 (abstract) (14 Feb. 1992).
L. A. Errede et al., "Chemical Modified Surfaces in Science and Industry", Gordon and Breach Science Publishers, New York, pp. 91-104 (1988).

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