Arsenic absorbing composition and methods of use

B - Operations – Transporting – 01 – J

Patent

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B01J 20/02 (2006.01)

Patent

CA 2680402

In various embodiments, the present disclosure provides filtering compositions, their method of production, and methods for their use. In specific implementations, the filtering composition includes lanthanum and has a surface area of at least about 125 g/m2. In more specific examples, the filtering composition is free-flowing or has a moisture content between about 10 wt% about 30 wt%. Particular compositions include at least one of iron or magnesium. Some embodiments of the present disclosure provide filtering compositions that are resilient or leach-resistant.

Dans divers modes de réalisation, la présente invention concerne des compositions filtrantes, leur procédé de production et des procédés d'utilisation de ces dernières. Dans des applications spécifiques, la composition filtrante contient du lanthane et présente une surface active au moins égale à environ 125 g/m2. Dans des exemples plus spécifiques, la composition filtrante s'écoule librement ou présente une teneur en humidité qui se situe entre environ 10 % en poids et environ 30 % en poids. Des compositions particulières renferment au moins un élément tel que le fer et le magnésium. Certains modes de réalisation de la présente invention concernent des compositions filtrantes qui sont résilientes ou qui résistent à la lixiviation.

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