Preparation technology of painting mist coagulant
A paint mist coagulant and preparation technology, applied in flocculation/sedimentation water/sewage treatment, natural water treatment, water/sludge/sewage treatment, etc., can solve unsatisfactory effect, high treatment cost, poor cohesion, etc. problems, achieve the effect of improving coagulation performance and separation of paint slag, reducing interfacial free energy, and changing surface properties
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[0016] The present invention will be further explained below in conjunction with embodiment.
[0017] A kind of preparation technology of paint mist coagulant, the preparation technology of described paint mist coagulant comprises the following steps:
[0018] (1) Preparation of anti-viscosity agent
[0019] (1) Hydroxymethylation stage: Add deionized water into a 500mL beaker, then add melamine and formaldehyde in sequence, adjust the pH value to 8-9 with triethylamine, and stir and react at 60-80°C for 30-60min;
[0020] (2) Condensation stage: use 50% sulfuric acid to adjust the pH value of the solution to 3-5, stir and react at 60-80°C for 1-3h, and obtain a transparent liquid, which is the viscosifying agent;
[0021] (2) Preparation of paint mist coagulant
[0022] Add 300mL of water into a 500mL beaker, add cationic polyacrylamide under high-speed stirring, stir and dissolve for a certain period of time, add modifier and anti-viscosity agent, and continue stirring for...
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