Composite polymer sludge dewatering agent and preparation method thereof
A technology of sludge dehydrating agent and composite polymer, which is applied in the direction of dehydration/drying/concentrated sludge treatment, etc. It can solve the problems of uncontrollable molecular structure, less industrialized products, and poor solubility, so as to save preparation cost and increase Sedimentation, the effect of simplifying the dosing operation
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[0032] Example 1
[0033] (1) 0.76kg methyl acrylate (industrial refining liquid, Jiangxi Changjiu Company, the same below) is made into 7.6kg aqueous solution with deionized water respectively, 0.08kg 2-acrylamido-2-methylpropanesulfonic acid (concentration It is a 60% industrial refined solution, the Lubrizol Corporation of the United States, the same below) is made into 0.48kg aqueous solution, 0.26kg acryloyloxyethyl trimethyl ammonium chloride (the industrial refined solution with a concentration of 70%, Jiangsu Nantian Company, The same below) is made into 1.8kg aqueous solution. Add the above three aqueous solutions into an enamel reaction kettle with a stirrer and a heating jacket, adjust the pH to 4 with 1% mass fraction hydrochloric acid and sodium hydroxide, start stirring, pass nitrogen and remove oxygen;
[0034] (2) in the solution of reactor, add respectively 0.0035kg ammonium persulfate, 0.003kg sodium bisulfite, 0.003kg azobisisobutyramidine hydrochloride (in...
Example Embodiment
[0038] Example 2
[0039] (1) 0.73kg methyl methacrylate (industrial refining liquid) is made into 7.3kg aqueous solution with deionized water respectively, 0.13kg 2-acrylamido-2-methylpropanesulfonic acid (concentration is 60% industrial refining liquid) solution) into 0.8kg aqueous solution, 0.22kg acryloyloxyethyl trimethyl ammonium chloride (industrial refined solution with a concentration of 70%) into 1.5kg aqueous solution. Add the above three aqueous solutions into an enamel reaction kettle with a stirrer and a heating jacket, adjust the pH to 3 with 1% mass fraction hydrochloric acid and sodium hydroxide, start stirring, pass nitrogen and remove oxygen;
[0040] (2) in the solution of reactor, add respectively 0.004kg potassium persulfate, 0.002kg sodium sulfite, 0.005kg azodiimidazolidinyl propane dihydrochloride, the EDTA-2Na of 0.004kg, control temperature of reaction is 30 ℃;
[0041] (3) When the reaction is carried out for 3h, add 0.1kg of ferric sulfate, stir wel...
Example Embodiment
[0042] Example 3
[0043] (1) 0.68kg of ethyl acrylate (industrial refined liquid) was prepared into 6.8kg aqueous solution with deionized water, 0.14kg of acrylic acid (industrial refined solution with a concentration of 60%) was prepared into 0.82kg aqueous solution, 0.33kg of dimethyl dimethy Allyltrimethylammonium chloride (industrial refined solution with a concentration of 70%) was prepared into 2.3kg aqueous solution. Add the above three aqueous solutions into an enamel reaction kettle with a stirrer and a heating jacket, adjust the pH to 5 with 1% mass fraction hydrochloric acid and sodium hydroxide, start stirring, pass nitrogen and remove oxygen;
[0044] (2) in the solution of reactor, add respectively 0.004kg potassium persulfate, 0.005kg sodium bisulfite, 0.004kg azobisisobutyramidine hydrochloride, then add the EDTA-2Na of 0.004kg, and control temperature of reaction is 45 ℃, to promote chain initiation and chain growth reactions;
[0045] (3) When the reaction...
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