B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/04 (2006.01) B01J 20/02 (2006.01)
Patent
CA 2703826
Apparatus, process and article for treating a gas containing one or more of a chemical and/or biological contaminant. The process includes contacting the gas with an aggregate composition comprising an insoluble rare earth-containing compound to form a gas depleted of chemical and active biological contaminants. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. The composition comprises no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate has been sintered. A suitable insoluble cerium-containing compound can be derived from cerium carbonate. In one embodiment, the aggregate composition consists essentially of one or more cerium oxides, and optionally, a binder. Although intended for a variety of fluid treatment applications, such applications specifically include the treatment of breathing gases such as air that may contain chemical and/or biological contaminants.
L'invention concerne un appareil, un procédé et un article de traitement d'un gaz contenant un ou plusieurs polluants chimiques et/ou biologiques. Ledit procédé consiste à mettre le gaz en contact avec une composition agrégée contenant un composé insoluble comprenant des terres rares afin d'obtenir un gaz sans polluants chimiques ou biologiques actifs. Le composé insoluble comprenant des terres rares peut contenir un ou plusieurs éléments parmi le cérium, le lanthanum ou le praséodymium. La composition ne comprend pas plus de deux éléments sélectionnés dans le groupe composé d'yttrium, de scandium et d'europium lorsque l'agrégat a été fritté. Un composé insoluble adapté contenant du cérium peut être dérivé du carbonate de cérium. Dans un mode de réalisation, la composition agrégée contient essentiellement un ou plusieurs oxydes de cérium et, éventuellement, un liant. Bien que destinées à diverses applications de traitement fluidique, ces applications comprennent spécifiquement le traitement de gaz respiratoires, tels que l'air, pouvant contenir des polluants chimiques et/ou biologiques.
Burba John L. III
Oriard Tim L.
Burnet Duckworth & Palmer Llp
Molycorp Minerals Llc
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