AGGREGATE COMPOSITION TO TREAT A FLUID CONTAINING ONE OR MORE CONTAMINANTS, A METHOD FOR PREPARING AN AGGREGATE PARTICULAR FROM THE CONTACTS REMOVAL COMPOSITION AND FILTER SUBSTRATE

摘要

"aggregate composition for treating a fluid containing one or more contaminants, method for preparing an aggregate particulate of said composition and contaminant removal filter substrate", comprising an aggregate composition and process for making an aggregate composition. the aggregate composition includes an insoluble rare earth containing compound and a polymer binder. The insoluble rare earth containing compound may include one or more cerium, lanthanum or praseodymium. A suitable insoluble cerium-containing compound may be derived from cerium carbonate or a cerium salt. In a specific embodiment, the aggregate composition consists essentially of one or more cerium oxides, the polymer binder and optionally a flow aid. A process for making the composition includes mixing the insoluble rare earth containing compound with a polymer binder to form a mixture, and subjecting the mixture to mechanical, chemical and / or heat treatment to adhere the rare earth compound to the polymer binder. The aggregate composition may be used in a variety of fluid treatment applications to remove one or more chemical and biological contaminants in a fluid.