Plate SCR denitration catalyst has the structure with good anti-dust ability, however, the traditional plate denitration catalyst is weak in anti-sulfur dioxide poisoning. Tungsten trioxide is good at anti-sulfur poisoning, so introducing tungsten trioxide in a plate SCR denitration catalyst by solution method, also making vanadium pentoxide dispersed uniformly, thus to prepare high denitration efficiency plate SCR denitration catalyst containing with tungsten trioxide. The steps are as follows:

 

1. Dissolving ammonium metatungstate in the oxalic acid solution, get the mixing solution;

2. Mixing and stirring the titanium dioxide powder and ammonium metatungstate oxalic acid solution, and then dried, calcined to obtain titanium dioxide powder containing with tungsten trioxide, wherein the quality tungsten trioxide percentage is 6~17% of titanium oxide;

3. Weighing titanium dioxide powder, inorganic binder, plasticizer or organic binder, glass fiber, sesbania powder by the mass ratio of 100: 10 ~15: 4 ~ 8: 4~ 8: 2 ~ 4, then went through stirring and mixing, ground to a particle size of 100 mesh or less, to obtain a solid mixed powder;

4. Adding oxalic acid solution containing cerium nitrate and ammonium metavanadate aqueous solution into solid mixed powder obtained in step 3; keeping stirring, adding ammonia to adjust PH value of 9~10, then continue stirring to generate a pug, then aging at 25~50°C for 5~10 days after sealed;

5. Washing the stainless steel mesh in dilute sulfuric acid solution with ultrasound a and drying it;

6. Coating the aged pug uniformly on the treated stainless steel mesh, and then forming to obtain the molding raw catalyst;

7. Drying and calcining to obtain the plate SCR denitration catalyst containing tungsten trioxide.