Liquid purification or separation – Processes – Separating
Patent
1996-02-16
1998-07-07
Fortuna, Ana
Liquid purification or separation
Processes
Separating
2105001, 21050025, 21050026, 2105101, 210503, 2105021, 210490, H01D 3702, H01D 3900
Patent
active
057763534
ABSTRACT:
This invention relates to advanced composite filtration media comprising (i) a functional filtration component and (ii) a matrix component, wherein said matrix component has a softening point temperature less than the softening point temperature of said functional filtration component, and wherein said functional filtration component is intimately bound to said matrix component; and methods for preparing and using same. More particularly, this invention pertains to advanced composite filter media and advanced composite filter media products comprised of a functional filtration component, such as a biogenic silica product (e.g., diatomite) or a natural glass product (e.g., expanded perlite) which bears a distinguishing porous and intricate structure suitable for filtration, which is thermally sintered to a matrix component, such as an engineering polymer (e.g., glasses, crystalline minerals, thermoplastics, and metals) that has a softening temperature below that of the functional filtration component. The advanced composite filtration media of the present invention offer unique properties such as increased permeability, low centrifuged wet density, low cristobalite content, and uniquely shaped particles (e.g., fibers).
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Palm Scott K.
Roulston John S.
Shiuh Jerome C.
Smith Timothy R.
Advanced Minerals Corporation
Fortuna Ana
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