Flocculation-sterilization double-effect macromolecule and preparation method thereof
A polymer and flocculation technology, applied in the direction of flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., to achieve the effects of strong neutralization ability, enhanced interaction and cost reduction
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[0045] Example 1
[0046] (1) According to the volume ratio of deionized water and diallylamine of 0.3:1, first add 15mL of deionized water and 50mL of diallylamine to a 250mL reactor with mechanical stirring, and then slowly add 6.0 mol / L hydrochloric acid 67mL, control the temperature not higher than 30℃, until the oil phase disappears;
[0047] (2) Distill under reduced pressure at -0.095MPa at 55°C until there is no obvious distillate to obtain a colorless or reddish viscous transparent solution. Collect the distillate for reuse;
[0048] (3) Add deionized water to the solution obtained by distillation in step (2) to adjust the mass fraction of diallylamine hydrochloride to 72.5%, add 43mg EDTA, stir and dissolve to prepare a reaction solution, blow nitrogen to drive oxygen for 30 minutes, and then Slowly add 7.5mL of a solution containing 375.8mg of ammonium persulfate at 55°C, react for 4h, add 1.6mL of a solution containing 81mg of ammonium persulfate, warm up to 65°C and rea...
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[0054] Example 2
[0055] (1) According to the volume ratio of deionized water and diallylamine of 0.1:1, first add 5mL of deionized water and 50mL of diallylamine to a 250mL reactor with mechanical stirring, and then slowly add 4.0 mol / L hydrochloric acid 101mL, control the temperature not higher than 30℃, until the oil phase disappears;
[0056] (2) Distill under reduced pressure at -0.095MPa at 50°C until there is no obvious distillate to obtain a colorless or reddish viscous transparent solution, and collect the distillate for reuse;
[0057] (3) Add deionized water to the solution obtained by distillation in step (2) to adjust the mass fraction of diallylamine hydrochloride to 70%, add 5.3 mg of EDTA, stir to dissolve to prepare a reaction solution, blow nitrogen to drive oxygen for 30 minutes, then Slowly add 10 mL of a solution containing 478.5 mg of ammonium persulfate at 50°C, and react for 5 hours. Add 1 mL of a solution containing 53 mg of ammonium persulfate. The tempera...
Example Embodiment
[0063] Example 3
[0064] (1) According to the volume ratio of deionized water to diallylamine of 0.2:1, first add 10mL of deionized water and 50mL of diallylamine to a 250mL reactor with mechanical stirring, and then slowly add 7.0 dropwise. mol / L hydrochloric acid 57.5mL, control the temperature not higher than 30℃, until the oil phase disappears;
[0065] (2) Distill under reduced pressure at -0.095MPa at 55°C until there is no obvious distillate to obtain a colorless or reddish viscous transparent solution, and collect the distillate for reuse;
[0066] (3) Add deionized water to the solution obtained by distillation in step (2) to adjust the mass fraction of diallylamine hydrochloride to 78.2%, add 53.5 mg of EDTA, stir to dissolve to prepare a reaction solution, blow nitrogen to drive oxygen for 30 minutes, then Slowly add 11 mL of a solution containing 534.4 mg of ammonium persulfate at 55°C, react for 3 hours, add 1.3 mL of a solution containing 64 mg of ammonium persulfate,...
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