kind of vooh/vs 4 Micron composite powder and its preparation method and application
A composite powder and hydrothermal reaction technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of no composite material preparation technology, achieve excellent catalytic performance, and easy control of the reaction , the effect of high purity
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Embodiment 1
[0044] Step 1: Take 2.4 g of sodium metavanadate and 3.6 g of thioacetamide to 60 ml of deionized water, magnetic force at 600r / min, and the magnetic force is stirred for 60 min to obtain a semi-clear solution A;
[0045] Step 2: Then, 0.7 mol / L is then dripped to the solution A, and the dripping speed of the aqueous ammonia solution is 0.15 ml / min, and the aqueous ammonia solution is added dropwise, stir until the pH of the solution is stable, then dropped. The next drop of an aqueous solution until the pH of the solution reaches 10.6 to obtain a solution B;
[0046] Step 3: Press 60% of the fill than to pour the solution B into the reactive liner seal, after fixing the inner liner in the outer extrapylide, placed in a homogeneous reaction device, and heated by room temperature under 10R / min 180 ° C hydrothermal reaction 24 h;
[0047] Step 4: After the hydrothermal reaction, the reaction kettle is naturally cooled to room temperature, and then the product reactured after...
Embodiment 2
[0061] Step 1: Take 2.0 g of sodium metavanadate and 3.5 g of thiocanoacetamide to 55 mL of deionized water, magnetic force at 500 r / min is stirred at 65 min to obtain a semi-clear solution A;
[0062] Step 2: Then, 0.9 mol / L, aqueous ammonia solution, and control the dripping speed of the aqueous ammonia solution of 0.13 ml / min, and add a drop of aqueous ammonia solution, stir until the pH is stable, then dropped. The next drop of ammonia solution until the pH of the solution reaches 10.7, resulting in solution B;
[0063] Step 3: Press 55% of the fill than to pour the solution B into the reaction liner seal, and place the inner liner into the outer extract in a homogeneous reactor, and heated by room temperature under the rotational speed of 5R / min. Genol in 175 ° C for 25h;
[0064] Step 4: After the hydrothermal reaction, the reactor is naturally cooled to room temperature, and then the product reactive after the reaction is removed, and the centrifugation is separated...
Embodiment 3
[0067] Step 1: Take 2.2 g of sodium pelicanate and 3.8 g of thiocanoacetamide to 65 ml of deionized water, magnetic force at a radius of 800R / min is stirred at a half-clear solution A;
[0068] Step 2: Then, 0.8 mol / L, aqueous ammonia solution, and control the dripping speed of 0.16 ml / min, and add a drop of aqueous ammonia solution, stirred until the pH is stable until the solution pH is stable. The next drop of ammonia solution until the pH of the solution reaches 10.7, resulting in solution B;
[0069] Step 3: Pushing 65% fill than the solution B poured into the reaction liner seal, and the inner liner is installed in the outer tank to be fixed in a homogeneous reaction device, and the temperature is heated by room temperature under the rotational speed of 8R / min. 185 ° C hydrothermal reaction 23h;
[0070] Step 4: After the hydrothermal reaction, the reaction kettle is naturally cooled to room temperature, and then the product reactive after the reaction is removed.
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