Method of synthesizing super large micropore aluminium phosphate molecular sieve in eutectic mixture
A technology of eutectic mixture and aluminum phosphate molecular sieve, which is applied in the direction of molecular sieve characteristic silicoaluminophosphate, molecular sieve and alkali-exchanged phosphate, etc., can solve the problem of long crystallization time of molecular sieve, and achieve low synthesis cost, environmental friendliness, low The effect of skeleton density
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[0037] Example 1
[0038] Add 60.0g of tetraethylammonium chloride-pentaerythritol eutectic mixture (TEAC-Pent, the molar ratio of TEAC to Pent is 0.82:1) into a 100ml beaker, raise the temperature to 100°C, add 6.19g with magnetic stirring to a concentration of 85wt% Phosphoric acid, 7.6g aluminum isopropoxide, add 0.96g 40% hydrofluoric acid dropwise uniformly, stir until uniform, then add 1.53g 2-methylimidazole (2-MIm), continue to stir until uniform to obtain the reaction precursor Reactant, where Al 2 O 3 : P 2 O 5 : F - The ratio of :TEAC:2-MIm is 1:1.42:0.53:4.88:0.50 (molar ratio). The above mixture was transferred to a 100ml stainless steel reactor with PTFE lining, placed in a 180°C oven for 4 hours, then the reaction mixture was cooled to room temperature, 150ml of deionized water was added, stirred, ultrasonically washed, and The reactant was filtered to obtain a white solid powder, and the washing was repeated three times, and the white powder was washed with 50 ml...
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[0041] Example 2
[0042] Add 60.0g of tetraethylammonium chloride-pentaerythritol eutectic mixture (TEAC-Pent, TEAC to Pent molar ratio 0.41:1) into a 100ml beaker, heat to 100°C, add 5.23g with magnetic stirring to a concentration of 85wt% Phosphoric acid, 7.6g aluminum isopropoxide, add 0.96g 40% hydrofluoric acid dropwise uniformly, stir until uniform, then add 1.53g 2-methylimidazole (2-MIm), continue to stir until uniform to obtain the reaction precursor Reactant, where Al 2 O 3 : P 2 O 5 : F - The ratio of :TEAC:2-MIm is 1:1.20:0.53:2.66:0.50 (molar ratio). The above mixture was transferred to a 100ml stainless steel reactor with PTFE lining, placed in a 180°C oven for 4 hours, then the reaction mixture was cooled to room temperature, 150ml of deionized water was added, stirred, ultrasonically washed, and The reactant was filtered to obtain a white solid powder, and the washing was repeated three times, and the white powder was washed with 50 ml of acetone. Place the fin...
Example Embodiment
[0043] Example 3
[0044] Add 60.0g of tetraethylammonium chloride-pentaerythritol eutectic mixture (TEAC-Pent) into a 100ml beaker, raise the temperature to 100℃, add 7.23g 85wt% phosphoric acid and 7.6g aluminum isopropoxide with magnetic stirring, Add 0.96g of 40% hydrofluoric acid dropwise uniformly, stir until uniform, then add 1.53g 2-methylimidazole (2-MIm), continue stirring until uniform to obtain the reaction precursor reactant, in which Al 2 O 3 : P 2 O 5 : F - The ratio of :TEAC:2-MIm is 1:1.66:0.53:4.88:0 (molar ratio). The above mixture was transferred to a 100ml stainless steel reactor with PTFE lining, placed in a 180°C oven for 4 hours, then the reaction mixture was cooled to room temperature, 150ml of deionized water was added, stirred, ultrasonically washed, and The reactant was filtered to obtain a white solid powder, and the washing was repeated three times, and the white powder was washed with 50 ml of acetone. Place the final white molecular sieve powder i...
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