Liquid purification or separation – Filter – Material
Patent
1996-10-30
1998-06-16
Therkorn, Ernest G.
Liquid purification or separation
Filter
Material
210504, 210506, B01D 3904
Patent
active
057670609
ABSTRACT:
A bonded multi-component filter medium preferably contains at least two active components, namely, activated carbon adsorbent and a blend of at least two organic polymer absorbents. The medium is prepared by adding a selected quantity of carbon of a preselected size to a mixer, then wetting the activated carbon with a water-based aliphatic resin binder adhesive, preferably also with a surfactant, thus eliminating the static charge on the carbon, then adding hydrophobic absorption bonding polymers to the mixer, then thoroughly mixing the hydrophobic absorption bonding polymer with the carbon in preselected proportions, until both the carbon particles and the polymer particles are effectively coated with the binder adhesive. After thoroughly mixing, the medium mixture is preferably poured into filter cartridge forms, and then air-dried at room temperature and low humidity, to cure the aliphatic resin adhesive binder. Upon curing, the medium mixture forms a loose but cohesive and relatively low density sponge-like mass. As a result, an exemplary bonded multi-component medium is provided, with properties superior to either polymers or activated carbon alone. More importantly, this unique bonded multi-component medium allows use of both polymers and activated carbon in a common filter vessel, thus simplifying design, operation, and maintenance of filtration equipment.
REFERENCES:
patent: 3375933 (1968-04-01), Rodman
patent: 3474600 (1969-10-01), Tobias
patent: 3538020 (1970-11-01), Heskett
patent: 3568846 (1971-03-01), Haefner
patent: 3905910 (1975-09-01), Coombs
patent: 4076892 (1978-02-01), Fennimore
patent: 4190542 (1980-02-01), Hodgson
patent: 4664683 (1987-05-01), Degen
patent: 4753728 (1988-06-01), Vander Bilt
patent: 4789475 (1988-12-01), Harte
patent: 5348755 (1994-09-01), Roy
patent: 5374357 (1994-12-01), Comstock
Material Safety Data Sheet, Jun. 25, 1993, Advanced Water Systems, Inc. for product PetroLOK-FM Filter Media. pp. 1-4.
Environmental Data Sheet, Jun. 25, 1993, Advanced Water Systems, Inc. for product PetroLOK-FM Filter Media. p. 1.
Advanced Water Systems
Freiburger Thomas M.
Therkorn Ernest G.
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