Process for absorbing nitrogen oxides from gas mixtures...

B - Operations – Transporting – 01 – D

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B01D 53/56 (2006.01) B01J 20/04 (2006.01) B01J 20/06 (2006.01)

Patent

CA 2347733

A process for absorbing nitrogen oxides, comprising the step of placing gas mixtures containing nitrogen oxides in contact with absorbent compounds constituted by mixed copper oxides chosen among CaCuO2, Sr14Cu24O41, derivatives thereof obtained by isovalent and/or heterovalent substitutions, and mixtures thereof.

La présente invention concerne un procédé d'absorption d'oxydes d'azote consistant à mettre en contact des mélanges gazeux renfermant des oxydes d'azote avec des composés absorbants constitués d'oxydes de cuivre mélangés sélectionnés dans le groupe constitué par CaCuO¿2?, Sr¿14?Cu¿24?O¿41?, des dérivés de ceux-ci obtenus par substitutions isovalentes et/ou hétérovalentes, ainsi que des mélanges de ceux-ci.

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