Ammoxidation catalyst and preparation method and application thereof

[0051] 1) Heat 2500g of water to 85°C, and stir 1950g of oxalic acid (H 2 C 2 o 4 ) was added into water to form an aqueous oxalic acid solution; 455g vanadium pentoxide, 680g silver nitrate and 1360g arsenic trichloride were added to 680g water to form a reaction solution one;

[0052] Under stirring, the above-mentioned reaction solution 1 was added to the oxalic acid aqueous solution to form a mixed solution 1;

[0053] 2) 1074g manganese nitrate, 1073g zirconium nitrate pentahydrate and 8.7g rhodium nitrate were dissolved in 3918.3g water to form reaction solution two;

[0054] Add 2750 g of silica sol with a mass percentage of 40% and the above-mentioned reaction solution 2 to the mixed solution 1 to obtain the mixed solution 2;

[0055] 3) Stir the above mixed solution 2 at 90°C at a speed of 350rpm for 200min, then raise the temperature to 105°C and let stand for 60min for aging treatment, and evaporate the solution after aging treatment to a slurry with a solid content

[0062] 1) Heat 2550g of water to 75°C, and stir 2000g of oxalic acid (H 2 C 2 o 4 ) was added into water to form an aqueous oxalic acid solution; 455g of vanadium pentoxide, 765g of silver nitrate and 1269g of arsenic trichloride were added to 780g of water to form a reaction solution 1;

[0063] Under stirring, the above-mentioned reaction solution 1 was added to the oxalic acid aqueous solution to form a mixed solution 1;

[0064] 2) 1988g of lead nitrate, 293g of cesium nitrate and 12.4g of iridium trichloride hydrate were dissolved in 4594.6g of water to form reaction solution 2;

[0065] Add 2800 g of silica sol with a mass percentage of 40% and the above-mentioned reaction solution 2 to the mixed solution 1 to obtain the mixed solution 2;

[0066] 3) Stir the above mixed solution 2 at 85°C at a speed of 300rpm for 180min, then raise the temperature to 108°C and let stand for 75min for aging treatment, and evaporate the solution after aging treatment to a slurry with a so

[0073] 1) Heat 2600g of water to 80°C, and stir 2100g of oxalic acid (H 2 C 2 o 4 ) was added into water to form an aqueous oxalic acid solution; 455g of vanadium pentoxide, 510g of silver nitrate and 998g of arsenic trichloride were added to 800g of water to form a reaction solution 1;

[0074] Under stirring, the above-mentioned reaction solution 1 was added to the oxalic acid aqueous solution to form a mixed solution 1;

[0075] 2) 1190g zinc nitrate hexahydrate, 1519g cerium nitrate hexahydrate and 16.85g platinum chloride were dissolved in 3513.15g water to form reaction solution 2;

[0076] Add 3000 g of silica sol with a mass percentage of 40% and the above-mentioned reaction solution 2 to the mixed solution 1 to obtain the mixed solution 2;

[0077] 3) Stir the above mixed solution 2 at 90°C at a speed of 310rpm for 150min, then raise the temperature to 110°C and let stand for 180min for aging treatment, and evaporate the solution after aging treatment to a slurry with