Preparation method of high-performance noble metal catalyst
A noble metal catalyst, high-performance technology, applied in the field of precious metals, can solve the problems of precious metal catalyst particle agglomeration, precious metal carrier does not have pretreatment and deactivation prevention, etc., to achieve pretreatment and deactivation prevention functions, strong recyclability, Feasible effect
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[0033] Example 1
[0034] A method for preparing a high-performance precious metal catalyst includes the following steps:
[0035] Step 1. Add polyvinylpyrrolidone to absolute ethanol and stir until it is completely dissolved, then add sodium peroxycarbonate and mix, and react under reduced pressure for 2 hours to obtain a viscous slurry;
[0036] Step 2: Add tourmaline powder to the viscous slurry for 20 minutes of ultrasonic dispersion, and then put it in a mold for constant temperature and pressure curing to obtain a prefabricated block;
[0037] Step 3. Add the preformed block to absolute ethanol and microwave soak for 30 minutes to obtain residual liquid and porous block;
[0038] Step 4. Add palladium acetate to the residual liquid and ultrasonically disperse for 2 minutes, and then distill under reduced pressure to form a concentrated liquid;
[0039] Step 5. Add the porous block to the concentrated solution, then take it out and dry to obtain a coated block, and then infrared dry...
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[0049] Example 2
[0050] A method for preparing a high-performance precious metal catalyst includes the following steps:
[0051] Step 1. Add polyvinylpyrrolidone to absolute ethanol and stir until it is completely dissolved, then add sodium peroxycarbonate and mix, and react under reduced pressure for 4 hours to obtain a viscous slurry;
[0052] Step 2: Add tourmaline powder to the viscous slurry and ultrasonically disperse it for 60 minutes, then put it in a mold for constant temperature and pressure curing to obtain a prefabricated block;
[0053] Step 3. Add the preformed block to absolute ethanol and microwave soak for 60 minutes to obtain residual liquid and porous block;
[0054] Step 4. Add palladium acetate to the residual liquid and ultrasonically disperse for 10 minutes, and then distill under reduced pressure to form a concentrated liquid;
[0055] Step 5. Add the porous block to the concentrated solution, then take it out and dry to obtain a coated block, and then infrared ...
Example Embodiment
[0065] Example 3
[0066] A method for preparing a high-performance precious metal catalyst includes the following steps:
[0067] Step 1. Add polyvinylpyrrolidone to absolute ethanol and stir until it is completely dissolved, then add sodium peroxycarbonate and mix, and react under reduced pressure for 3 hours to obtain a viscous slurry;
[0068] Step 2: Add tourmaline powder to the viscous slurry and ultrasonically disperse it for 40 minutes, and then put it in a mold for constant temperature and pressure curing to obtain a prefabricated block;
[0069] Step 3: Add the preformed block to absolute ethanol and microwave soak for 40 minutes to obtain the residual liquid and porous block;
[0070] Step 4. Add palladium acetate to the residual liquid and ultrasonically disperse for 8 minutes, and then distill under reduced pressure to form a concentrated liquid;
[0071] Step 5. Add the porous block to the concentrated solution, then take it out and dry to obtain a coated block, and then in...
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