FILTRATION MEDIA COMPRISING GRANULES OF BINDER-AGGLOMERATED ACTIVE COMPONENT

WIPO Patent Application WO2003082436

A3

Granules comprise binder-agglomeratd active particles for liquid treatment or filtration. Each granule has a center core of a material that itself has binding properties without the addition of other binders or sprays or adhesives, or, alternatively, each granule comprirses a matrix of active materials stuck together with the binder. The binder structure preferably ranges from a non-uniform matrix of binder formed by heat-deformed binder particles, to a clump of binder particles generally retaining the original shape or the binder particles, to non-continuous connectors of binder between active particles. The invented two-part media has high surface area per volume of media, which, because the outer surface and inner void surfaces of the particles are preferably substantially covered with active particles, translates to high activity for the preferred treatment process. Therefore, while a mixture of active particles may be used and a mixture of binders may be used, each media granule preferably consists only of a matrix, clump, or plurality of connectors of binder coated with active particles, with preferably no support for the active component other than the binder material.

REID ROGER P (US)
SAASKI BRUCE (US)

PCT/US2003/008755

December 24, 2003

March 24, 2003

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OMNIPURE FILTER COMPANY (US)
REID ROGER P (US)
SAASKI BRUCE (US)

B01J20/20; B01J20/28; (IPC1-7): B01J20/26; B01J20/32; B01D53/02

US4102816A	1978-07-25
GB2013102A	1979-08-08
US5332426A	1994-07-26
US4041961A	1977-08-16
US5639550A	1997-06-17

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