Rare earth compositions and structures for removing phosphates from water

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A rare-earth compound selected from the group consisting of rare earth anhydrous oxycarbonate and rare earth hydrated oxycarbonate, with a surface area of at least 10m2g, suitable for the removal of phosphate from water. LaC1 3 solution makeup l LaCI 3 solution, heat to 80°C Aq. Na 2 CO 3 solution addition over 2 hrs LazO(CO 3) 2, 4H 2 0 Fomaation at 80°C Cure 2 hours , L La 2 0(CO 3) 2"4H 2 0 Wash and filter (remove salts)