Method for preparing adsorption resin from aromatic ether micromolecule
A technology for adsorbing resins and small molecules, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low oxygen content of resins, carcinogenicity, complicated reaction steps, etc., and achieve large pore size, high polarity, and preparation process. simple effect
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Embodiment 1
[0026] A method for preparing ultra-high cross-linked adsorption resins by aromatic ether small molecules, comprising the following steps:
[0027] (1) Take 2.0 mL (16.5 mmol) of aromatic ether small molecule phenetole and 3.2517 g (16.5 mmol) of 1,4-dichloromethoxybutane as basic raw materials, add them to the reaction vessel, and then add solvent 1,4 - 20 mL of dichloroethane, stirred at room temperature for 5 min until the raw materials were completely dissolved, then added the catalyst anhydrous zinc chloride 3.2150 g (24 mmol), raised the temperature to 60 °C for chloromethylation reaction, and the reaction time was 3 h;
[0028] (2) Then raise the temperature to 75 °C and continue the reaction for 7 h. After the reaction is completed, cool to room temperature;
[0029] (3) The cooled product obtained in step (2) was added to 30 mL of 2% dilute hydrochloric acid, heated and boiled for 3 h, and then Soxhlet extracted for 6 h;
[0030] (4) Wash the resin extracted in step ...
Embodiment 2
[0032] A method for preparing ultra-high cross-linked adsorption resins by aromatic ether small molecules, comprising the following steps:
[0033] (1) Add 0.87 mL (8 mmol) of aromatic ether small molecule anisole and 1.5766 g (8 mmol) of 1,4-dichloromethoxybutane as basic raw materials into the reaction vessel, and then add solvent 1, 15 mL of 4-dichloroethane was stirred at room temperature for 10 min until the raw material was completely dissolved, then 1.4320 g (10.5 mmol) of anhydrous zinc chloride was added as a catalyst, and the temperature was raised to 40 °C for chloromethylation reaction, and the reaction time was 4 h .
[0034] (2) Then raise the temperature to 65 °C and continue the reaction for 8 h. After the reaction is completed, cool to room temperature;
[0035] (3) Add the cooled product obtained in step (2) into 20 mL of 3% dilute hydrochloric acid and heat to boil for 6 h, then Soxhlet extraction for 3 h;
[0036] (4) Wash the resin extracted in step (3) ...
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