Process for eliminating nitrogen oxides using an Ilmenite material

• Main Authors: MALEFANT, KARINE, BECUE, THIERRY
• Format: Patent
• Language: English; French; German
• Published: 31.10.2007
• Subjects: BLASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; STEAM ENGINES; THEIR RELEVANT APPARATUS; TRANSPORTING; WEAPONS

Eliminating nitrogen oxides from vehicle exhaust fumes comprises an oxide ABO3 of a metal cation (A) and a metal cation (B) from IA, IIA, IIIA, IVA, VA, IB, IIB, IIIB, IVB, VB, VIB, VIIB and VIII elements, A and B being coordinated with 6 O atoms, the ratio of A to B being 1+/-0.4.