Olefin deoxygenation agent, its preparation method, and olefin deoxygenation method using the same
An olefin deoxidizer and olefin technology, applied in the direction of chemical change purification/separation, organic chemistry, etc., can solve the problems of low deoxidation capacity and short service life, and achieve high deoxidation capacity, high mechanical crushing strength, and reduce emissions. Effect
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[0024] On the one hand, the invention provides a kind of preparation method of olefin deoxidizer, described method comprises the following steps:
[0025] (1) Manganese source, nano TiO 2 Mix with the binder to obtain a mixture, respectively, Mn 3 o 4 , Nanoscale TiO 2 and binder, based on 100 parts by weight of the manganese source, nanoscale TiO 2 The dosage is 58-100 parts by weight, the binder is 1.5-25 parts by weight, and the manganese source is Mn 3 o 4 And / or can get Mn after roasting 3 o 4 manganese compounds;
[0026] (2) the mixture obtained in step (1) is first roasted;
[0027] (3) The product after step (2) roasting is impregnated with the aqueous solution of the compound of silver equal volume, then kneading, molding, respectively with Mn 3 o 4 and Ag 2 In terms of O, based on 100 parts by weight of the manganese source, the aqueous solution of the compound of silver is 8-35 parts by weight, and the compound of silver can be decomposed to obtain Ag af...
Embodiment 1
[0062] This example is used to illustrate the preparation method of the olefin deoxidizer provided by the present invention.
[0063] MnCO with an average particle size of 35 μm 3 , with an average particle size of 9.8nm and a specific surface area of 160m 2 / g anatase TiO 2 , and the cement with an average particle size of 35 μm is mixed evenly. MnCO 3 、TiO 2 and the amount of cement so that the Mn 3 o 4 、TiO 2 and cement meter, based on 1000g of MnCO 3 ,TiO 2 The cement is 650g, and the cement is 200g, and then the mixture obtained by mixing uniformly is first calcined at 480°C for 5h.
[0064] Adding AgNO to the product after the first roasting 3 solution for equal volume impregnation, AgNO 3 The concentration and amount of the solution make the Mn 3 o 4 and Ag 2 O meter, based on 1000g of MnCO 3 , AgNO 3 The solution is 300g, fully kneaded, and prepared into strips with a diameter of Φ3mm and a length of 5mm with an extruder, and then placed in a closed p...
Embodiment 2
[0066] This example is used to illustrate the preparation method of the olefin deoxidizer provided by the present invention.
[0067] MnCO with an average particle size of 20 μm 3 , with an average particle size of 5nm and a specific surface area of 200m 2 / g anatase TiO 2 , and the cement with an average particle size of 20 μm is mixed evenly. MnCO 3 、TiO 2 and the amount of cement so that the Mn 3 o 4 、TiO 2 and cement meter, based on 1000g of MnCO 3 ,TiO 2 The cement is 580g, and the cement is 150g, and then the mixture obtained by mixing uniformly is first calcined at 500°C for 2h.
[0068] Add the product after the first roasting to the sugar coating machine and spray AgNO 3 solution for equal volume impregnation, AgNO 3 The concentration and amount of the solution make the Mn 3 o 4 and Ag 2 O meter, based on 1000g of MnCO 3 , AgNO 3 The solution is 350g, rolled into a spherical shape of Φ3mm, and then placed in an airtight place for 60h, then dried at 1...
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