Preparation process of improved sulfur-resistant sintering flue gas decarburization catalyst

[0023] The invention is an improved sulfur-resistant sintered flue gas decarburization catalyst, which is modified by phosphorylation of transition metal oxides rich in oxygen vacancies, and uses nano-sized anatase TiO 2 Prepared by carrying out loading, and then performing calcination treatment in an inert atmosphere;

[0025] A method for preparing an improved sulfur-resistant sintered flue gas decarburization catalyst, comprising the following steps:

[0026] Step 1: Add copper sulfate, phosphoric acid and deionized water to the reactor, heat and stir for reaction, stop stirring after the reaction is over; add titanium dioxide after cooling, continue heating and stirring; obtain the first reactant;

[0027] Among them, the mass ratio of copper sulfate, phosphoric acid and titanium dioxide is 1:1.0:8; the reaction temperature of copper sulfate and phosphoric acid is 38°C, and the reaction time is 3 hours; the stirring temperature after adding titanium dioxide is 38°C, and the stirring time is 3 hours;

[0028] Step 2: Raise the temperature of the first reactant, remove the solvent and evaporate the solution to dryness, dry the residue and place it in a tube furnace, pass in an inert gas for calcination, and cool down to room temperature; obtain an improved sulfur-resistant sintering flue gas de

[0033] A method for preparing an improved sulfur-resistant sintered flue gas decarburization catalyst, comprising the following steps:

[0034] Step 1: Add copper sulfate, phosphoric acid and deionized water to the reactor, heat and stir for reaction, stop stirring after the reaction is over; add titanium dioxide after cooling, continue heating and stirring; obtain the first reactant;

[0035] Among them, the mass ratio of copper sulfate, phosphoric acid and titanium dioxide is 1:1.5:9; the reaction temperature of copper sulfate and phosphoric acid is 40°C, and the reaction time is 4 hours; the stirring temperature after adding titanium dioxide is 40°C, and the stirring time is 4 hours;

[0036] Step 2: Raise the temperature of the first reactant, remove the solvent and evaporate the solution to dryness, dry the residue and place it in a tube furnace, pass in an inert gas for calcination, and cool down to room temperature; obtain an improved sulfur-resistant sintering flue gas de