1results about How to "Improve denitrification activity" patented technology

The application discloses a kind of catalysts for flue gas purification and its production process, belong to denitration catalyst technical field.The catalysts for flue gas purification, including by outer to inside sequentially coated manganese shell, carrier and iron core;The manganese shell, carrier and iron core;Preparation method includes the following steps: butyl titanate is dispersed in anhydrous ethanol, add urea and tourmaline, after filtration precipitation deionized water washing dry, obtain tourmaline modified nano TiO2;Tourmaline modified nano TiO2 is immersed in iron precursor solution, rotary evaporation is calcined to obtain intermediate;Intermediate is immersed in manganese precursor solution, add KMnO4 stationary reaction, suction filtration wash dry obtained catalyst is a three-layer coated core-shell structure, with high denitration activity and excellent sulfur poisoning resistance at low temperature (100-200 DEG C).