Method for preparing octahedron manganese oxide molecular sieve catalyzer
A manganese oxide, molecular sieve technology, applied in molecular sieve catalysts, physical/chemical process catalysts, separation methods, etc., can solve the problems of poor oxidation effect and unsatisfactory purification effect, and achieve outstanding oxidation ability, abundant raw materials, and temperature changes. wide range of effects
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Embodiment 1
[0019] A preparation method of an octahedral manganese oxide molecular sieve catalyst, specifically comprising the following steps:
[0020] 1. Prepare 150mL of potassium permanganate solution with a concentration of 0.30mol / L, heat and stir at 40°C to form a solution;
[0021] 2. Configure 150mL of manganese acetate solution with a concentration of 0.45mol / L, heat and stir at 40°C to form a solution;
[0022] 3. Slowly add the solution obtained in step 1 into a 1000mL three-necked flask, heat in an oil bath at 80°C for 10 minutes, stir with an electric stirrer at a stirring speed of 350r / min, and condense and reflux with tap water;
[0023] 4. Slowly add the solution obtained in step 2 to the flask of step 3, stir and react at 80°C for 22 hours, and condense and reflux with tap water to obtain a black slurry precipitate, which is pumped with deionized water Filter for 1 hour, then dry in an oven at 105°C for 10 hours; put it into a muffle furnace and bake at 400°C for 4 hour...
Embodiment 2
[0029] A preparation method of an octahedral manganese oxide molecular sieve catalyst, specifically comprising the following steps:
[0030] 1. Prepare 260mL of potassium permanganate solution with a concentration of 0.35mol / L, heat and stir at 50°C to form a solution;
[0031] 2. Configure 270mL of manganese acetate solution with a concentration of 0.5mol / L, heat and stir at 55°C to form a solution;
[0032] 3. Slowly add the solution obtained in step 1 into a 1000mL three-necked flask, heat in an oil bath at 95°C for 15 minutes, stir with an electric stirrer at a stirring speed of 400r / min, and condense and reflux with tap water;
[0033] 4. Slowly add the solution obtained in step 2 to the flask of step 3, stir and react at 96°C for 24 hours, and condense and reflux with tap water to obtain a black slurry precipitate, which is pumped with deionized water Filter for 1.5 hours, then dry in an oven at 108°C for 11 hours; put it into a muffle furnace and bake at 450°C for 4.5 ...
Embodiment 3
[0039] A preparation method of an octahedral manganese oxide molecular sieve catalyst, specifically comprising the following steps:
[0040] 1. Prepare 300mL of potassium permanganate solution with a concentration of 0.40mol / L, heat and stir at 60°C to form a solution;
[0041] 2. Configure 300mL of manganese acetate solution with a concentration of 0.55mol / L, heat and stir at 60°C to form a solution;
[0042] 3. Slowly add the solution obtained in step 1 into a 1000mL three-necked flask, heat in an oil bath at 110°C for 20 minutes, stir with an electric stirrer at a stirring speed of 450r / min, and condense and reflux with tap water;
[0043] 4. Slowly add the solution obtained in step 2 to the flask of step 3, stir and react at 110°C for 26 hours, and condense and reflux with tap water to obtain a black slurry precipitate, which is pumped with deionized water Filter for 2 hours, then dry in an oven at 110°C for 10-12 hours; put it into a muffle furnace and bake at 500°C for ...
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