A kind of adsorption resin and its synthesis method and the method for treating waste water
A technology for adsorption resin and hydrazine hydrate, which is applied in the fields of adsorption water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc. Low requirements, high amino content, and the effect of reducing total exhaust emissions
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Embodiment 1
[0083] Add α-amino-β-hydroxybutyric acid 88.0g and 0.0.53g methanesulfonic acid (the ratio is 0.6wt%) to the reactor equipped with stirring, thermometer, reflux condenser and N,N-dimethylformamide solution , heated to 60°C at a stirring speed of 200 rpm and an absolute pressure of 35kPa, and reacted for 1.5h. After the reaction was completed, 8.5 g of p-hydroxystyrene and 0.2 g of polymerization inhibitor 701 were added; the temperature was raised to 120° C. to continue the reaction for 2.0 h. After the reaction was completed, 9.7 g of deionized water was added to extract methanesulfonic acid to obtain hydroxystyrene with pendant amino groups.
[0084] The molecular weight distribution of hydroxystyrene with side amino groups measured by GPC is as follows, and the range of n corresponding to the molecular weight distribution is 2 to 19:
[0085] molecular weight 500-1500 1500—2500 content 32％ 68％
[0086] 56.8 g of p-chlorostyrene and 25.6 g of hydrazi...
Embodiment 2
[0091] Add α-amino-β-hydroxybutyric acid 61.5g and 0.5g methanesulfonic acid (ratio is 0.8wt%) in the reactor equipped with stirring, thermometer, reflux condenser, N,N-dimethylformamide solution, Heat to 80°C at a stirring speed of 250 rpm and an absolute pressure of 25kPa, and react for 2.0h. After the reaction was completed, 5.3 g of p-hydroxystyrene and 0.15 g of polymerization inhibitor 701 were added; the temperature was raised to 100° C. to continue the reaction for 1.5 h. After the reaction was completed, 6.7 g of deionized water was added to extract methanesulfonic acid to obtain hydroxystyrene with pendant amino groups.
[0092] The molecular weight distribution of hydroxystyrene with side amino groups measured by GPC is as follows, and the range of n corresponding to the molecular weight distribution is 2 to 19:
[0093] molecular weight 500-1500 1500—2500 content 26％ 74％
[0094] Add 77.3 g of p-chlorostyrene and 15.8 g of hydrazine hydrate...
Embodiment 3
[0099] Add α-amino-β-hydroxybutyric acid 57.3g and 0.6g (1.1wt%) methanesulfonic acid in the reactor equipped with stirring, thermometer, reflux condenser, N,N-dimethylformamide solution, at 250 Stirring speed at rev / min, heating to 70°C under 25kPa absolute pressure, and reacting for 1.5h. After the reaction was completed, 4.2 g of p-hydroxystyrene and 0.15 g of polymerization inhibitor 701 were added; the temperature was raised to 130° C. to continue the reaction for 2.5 hours. After the reaction was completed, 8.0 g of deionized water was added to extract methanesulfonic acid to obtain hydroxystyrene with pendant amino groups.
[0100] The molecular weight distribution of hydroxystyrene with side amino groups measured by GPC is as follows, and the range of n corresponding to the molecular weight distribution is 2 to 19:
[0101] molecular weight 500-1500 1500—2500 content 30％ 70％
[0102] 19.3 g of p-chlorostyrene and 15.8 g of hydrazine hydrate wer...
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