Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1996-10-04
1999-06-15
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
2105021, B01D 1500
Patent
active
059118830
ABSTRACT:
A method for removing dissolved species from a fluid while allowing suspended solid particles to remain within in the fluid, where the fluid includes dissolved species and suspended solid particles. The method includes providing a solid phase extraction article comprising a first end, a second end opposite the first end, an axis extending from the first end to the second end, and a porous, particle loaded, fibrous sheet material formed into a spiral configuration about the axis. The sheet material is wound around itself to provide multiple layers of sheet material, each layer of sheet material is spaced from each adjacent layer of sheet material, and the sheet material comprises a first working surface, a second, opposite working surface, and an inner portion comprising active particles between the first and second working surfaces. The method further includes passing a fluid including dissolved species and suspended solid particles through the solid phase extraction article from the first end to the second end in an axial direction. The suspended solid particles preferably do not substantially obstruct the first or second working surfaces so that the fluid including dissolved species can reach the inner portion of the sheet material. The fluid also preferably contacts both the first and second working surfaces of the sheet material, and active particles contained within the sheet material remove the dissolved species from the fluid as the fluid passes through the solid phase extraction article.
REFERENCES:
patent: 3173862 (1965-03-01), Clements et al.
patent: 3338992 (1967-08-01), Kinney
patent: 3509009 (1970-04-01), Hartmann
patent: 3528129 (1970-09-01), Hartmann
patent: 3759391 (1973-09-01), Dreher
patent: 3809613 (1974-05-01), Vieth et al.
patent: 3888250 (1975-06-01), Hill
patent: 3971373 (1976-07-01), Braun
patent: 4092246 (1978-05-01), Kummer
patent: 4153661 (1979-05-01), Ree et al.
patent: 4431542 (1984-02-01), Dingfors et al.
patent: 4437271 (1984-03-01), McAvoy
patent: 4773999 (1988-09-01), Schade
patent: 4810381 (1989-03-01), Hagen et al.
patent: 4853120 (1989-08-01), Frantz
patent: 4893439 (1990-01-01), McAvoy et al.
patent: 4933229 (1990-06-01), Insley et al.
patent: 5030496 (1991-07-01), McGurran
patent: 5071610 (1991-12-01), Hagen et al.
patent: 5082720 (1992-01-01), Hayes
patent: 5120331 (1992-06-01), Landy
patent: 5279742 (1994-01-01), Markell et al.
patent: 5328758 (1994-07-01), Markell et al.
patent: 5366632 (1994-11-01), Balsimo et al.
patent: 5403482 (1995-04-01), Steere et al.
patent: 5472600 (1995-12-01), Ellefson et al.
patent: 5492627 (1996-02-01), Hagen et al.
Technical Information--"3M Empore.TM. Extraction Disks, A new standard for sample preparation," 78-6900-3736-7 (25.5)DPI .COPYRGT.3M 1995.
Technical Information--"3M Empore.TM. Extraction Disks, The environmental analysis standard," 78-6900-3735-9 (25.5)DPI .COPYRGT.3M 1995.
Technical Information--"3M Empore.TM. High Performance Extraction Disk Cartridges, A new standard for sample preparation," 78-6900-3737-5 (25.5)DPI .COPYRGT.3M 1995.
Technical Information--"3M Empore.TM. Custom Applications, Setting new performance standards," 78-6900-3739-1 (94.2)DPI .COPYRGT.3M 1994.
Journal of Chromatography, 351 (1986), H. Figge et al., pp. 393-408.
Introduction to Modern Liquid Chromatography, Snyder and Kirkland, 2d Ed., John Wiley & Sons, Inc. (1979), pp. 172-177, 272-279, 326-333.
Cintins Ivars
Hakamaki Michaele A.
Minnesota Mining and Manufacturing Company
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