Inventors:
Tom Fitch - St. Paul MN
Majid Entezarian - Hudson WI
James R. Johnson - Naples FL
Assignee:
Phillips Plastics Corporation - Phillips WI
International Classification:
B01D 5304
US Classification:
95143, 95148, 95274, 95276, 96143, 96146, 96147, 96228, 96231, 96233, 552822, 553851, 55512, 55516, 55523, 55524, 55DIG 30, 55DIG 36
Abstract:
Inorganic, porous particles filter a substance or substances from a flow of fluid such as a gas. The particles can be arranged into a bed to filter a substance (filtrate substance) from a fluid. The filtrate substance can collect on or within the pores of the inorganic particles. Collection of the filtrate substance within the pores of the particles rather than within the interstices of the bed enhances the filtering capacity and does not impede the flow of fluid through the bed of particles. Furthermore, the inorganic particles are re-usable, in that they can be subjected to harsh filtrate-separation techniques, e. g. , heat treatment, solvent extraction, detergent washing, and centrifugal separation, yet retain their desired properties.