Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2005-10-25
2009-08-11
Hopkins, Robert A (Department: 1797)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S683000, C210S688000, C502S416000
Reexamination Certificate
active
07572380
ABSTRACT:
A carbonaceous material that has been loaded with at least one ionic organic species or hydroxide species and at least one metal or alkaline earth metal. The ionic organic species or hydroxide species is at least one selected from the group consisting of: fatty acids, surfactants, organic carboxyl species, organic sulfonate species, organic hydroxyl species, organic phenolic species, organic lactone species, organic amine species, or hydroxide species.
REFERENCES:
patent: 4427630 (1984-01-01), Aibe et al.
patent: 5231063 (1993-07-01), Fukumoto et al.
patent: 5521008 (1996-05-01), Lieberman et al.
patent: 5705269 (1998-01-01), Pimenov et al.
patent: 6171372 (2001-01-01), Ichiki et al.
patent: 6214607 (2001-04-01), Logan
patent: 6699393 (2004-03-01), Baker et al.
patent: 6881348 (2005-04-01), Cannon et al.
patent: 11207365 (1999-08-01), None
PCT International Search Report dated Aug. 8, 2006 in regards to PCT Application No. PCT/US05/38622 filed Oct. 25, 2005.
International Search Report dated Sep. 5, 2002 for PCT/US02/18239 filed Jun. 7, 2002.
Bauer et al., “Adsorption Of Poly(Diallyl-Kimethyl-Ammoniumchloride) Pdadmac And Of Copolymers Of Dadmac With N-Methyl-N-Vinyl-Acetamide (Nmva) Ib Cikkiudak Silica”Prog. Colloid Polym. Sci(1998) vol. 109, pp. 161-169.
Brown et al.,“Antibiotic And Biotic Perchlorate Removal In An Activated Carbon Filter”Journal AWWA(2002) 94(2), pp. 70-79.
Gonce et al., “Removal Of Chlorite And Chlorate Ions From Water Using Granular Activated Carbon”Water Research.vol. 28, No. 5, pp. 1059-1069, Mar. 1993.
Gu et al., Regeneration Of Perchlorate (Cio4-)-Loaded Anion Exchange Resins By A Novel Tetrachloroferrate (Fec14-)Displacement Technique'Envir. Sci.&Tech., vol. Xx, No. Xx, Xxxx, Feb. 2001.
Gu et al., “Preparation and Evaluation of GAC-Based Iron-Containing Adsorbents for Arsenic Removal”Envir. Sci.&Technol.2005, vol. 39, pp. 3833-3843.
Gullick, “Occurrence Of Perchlorate In Drinking Water Sources”Journal AWWA, Jan. 2001,pp. 66-77.
Mangun et al., “Surface Chemistry, Pore Sizes, And Adsorption Properties Of Activated Carbon Fibers And Precursors Treated With Ammonia”Carbon, vol. 39 (2001) pp. 1809-1820.
Mendez et al., “On The Modification And Characterization Of Chemical Surface Properties Of Activated Carbon: In The Search Of Carbons With Stable Basic Properties”Langmuir1996, vol. 12,pp. 4404-4410.
Na et al., “Perchlorate Removal Via Iron-Preloaded Gac And Borohydride Regeneration”Journal AWWA, Nov. 2002, vol. 94: 11, pp. 90-101.
Park et al., “Influence of Anodic Surface Treatment Of Activated Carbon On Adsorption And Ion Exchange Properties”J. Colloid And Interface Sci.(1999)vol. 218, pp. 331-334.
Reed et al., “As(III), As(V), Hg and Pb Removal by Fe-Oxide Impregnated Activated Carbon”Journal Envir. Eng.Sep. 2000, pp. 869-873.
Vaughan Jr. et al., “Modeling As(V) removal by a iron oxide impregnated activated carbon using the surface complexation approach” El SevierWater Research39, 2005, pp. 1005-1014.
Cannon Fred S.
Chen Weifang
Dempsey Brian A.
Parette Robert
Sun Fenglong
Hopkins Robert A
Ohlandt Greeley Ruggiero & Perle L.L.P.
The Penn State Research Foundation
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