Denitration catalyst using titanium dioxide as raw material and preparation method thereof

[0024] Weigh 257.37g TiO 2 The intermediate product metatitanic acid in the production process is added to 60ml of water and stirred in a water bath at 60°C to obtain the carrier TiO 2 The slurry; then weigh 14.07g of ammonium paratungstate and add it to the above slurry and continue to stir evenly. The amount of ammonium paratungstate added is equivalent to WO 3 later with TiO 2 The weight ratio is 1:10. The stirred slurry is dried in a drying oven at 100°C for 2 hours, and then calcined in a muffle furnace at 500°C for 5 hours. The calcined product is ground and sieved to obtain WO 3 / TiO 2 Powder; weigh 100g of WO below 100 mesh 3 / TiO 2 Powder and ammonium metavanadate, add 60ml of water and stir in a water bath at 80°C, the amount of ammonium metavanadate added is equivalent to V 2 o 5 Later with WO 3 / TiO 2 The weight ratio is 1:55; add additives including clay, methylcellulose, polyethylene oxide, silica sol, glass fiber, monoethanolamine during the stirring pro...

[0028] Weigh 257.37g TiO 2 The intermediate product metatitanic acid in the production process is added to 60ml of water and stirred in a water bath at 70°C to obtain the carrier TiO 2 The slurry; then weigh 11.258g of ammonium paratungstate and add it to the above slurry and continue to stir evenly. The amount of ammonium paratungstate added is equivalent to WO 3 later with TiO 2 The weight ratio is 2:25. The stirred slurry is dried in a drying oven at 100°C for 2 hours, and then calcined in a muffle furnace at 500°C for 5 hours. The calcined product is ground and sieved to obtain WO 3 / TiO 2 Powder; take 100g of powder below 100 mesh and ammonium metavanadate, add 60ml of water and stir in a water bath at 70°C, the amount of ammonium metavanadate added is equivalent to V 2 o 5 Later with WO 3 / TiO 2 The weight ratio is 1:50; add additives including clay, methylcellulose, polyethylene oxide, silica sol, glass fiber, monoethanolamine during the stirring process, and contin...

[0031] Weigh 257.37g TiO 2 The intermediate product metatitanic acid in the production process is added to 60ml of water and stirred in a water bath at 80°C to obtain the carrier TiO 2 The slurry; then weigh 7.04g of ammonium paratungstate and add it to the above slurry and continue to stir evenly. The amount of ammonium paratungstate added is equivalent to WO 3 later with TiO 2 The weight ratio is 1:20. The stirred slurry is dried in a drying oven at 100°C for 2 hours, and then calcined in a muffle furnace at 500°C for 5 hours. The calcined product is ground and sieved to obtain WO 3 / TiO 2 Powder; take 100g of powder below 100 mesh and ammonium metavanadate, add 60ml of water and stir in a water bath at 80°C, the amount of ammonium metavanadate added is equivalent to V 2 o 5 Later with WO 3 / TiO 2 The weight ratio is 1:55; add additives including clay, methylcellulose, polyethylene oxide, silica sol, glass fiber, monoethanolamine during the stirring process, and contin...