A cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material and its preparation method and application
A technology of aluminum phosphate molecular sieve and adsorption material, applied in the direction of molecular sieve characteristic aluminum phosphate, molecular sieve compound, molecular sieve and alkali-exchanged phosphate, etc., can solve the problems of high production cost, cumbersome preparation process, weak selectivity, etc., and achieve strong adsorption effect, the effect of reducing the amount of release
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Embodiment 1
[0036] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps
[0037] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 1.9 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 28 minutes after adding, then In the state of stirring, diisopropylamine was added dropwise, and stirring was continued for 1.9 hours after the addition, and the initial gel of CoAPO-11 was obtained;
[0038]Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:79, wherein x+y=1, x=0.02;
[0039] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aq...
Embodiment 2
[0044] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps
[0045] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 2.1 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 32 minutes after adding, then In the state of stirring, add diisopropylamine dropwise, and continue to stir for 2.1 hours after the addition, to obtain the initial gel of CoAPO-11;
[0046] Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:81, wherein x+y=1, x=0.02;
[0047] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aqueous solution and...
Embodiment 3
[0052] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps
[0053] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 2.1 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 32 minutes after adding, then In the state of stirring, add diisopropylamine dropwise, and continue to stir for 2.1 hours after the addition, to obtain the initial gel of CoAPO-11;
[0054] Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:81, wherein x+y=1, x=0.1;
[0055] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aqueous solution and ...
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