Fluorescent tracing green environmental-friendly polyglycol ether water treatment agent and preparation method thereof
A technology of polyethylene glycol ether and polyethylene glycol ether carboxylic acid, which is applied in the field of environment-friendly multifunctional water treatment agent, water treatment agent preparation and application, and can solve the problem of calcium phosphate scale and poor inhibition and dispersion of iron oxide particles , poor stability of zinc salt, few functional groups, etc., to achieve the effect of on-line detection and automatic drug delivery, low production cost, and good dispersion
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example 1
[0019] Example 1: at N 2 Add 100g of polyethylene glycol ethyl ether to the protected reactor, add 120g of maleic anhydride and react at 65°C for 4.5h to obtain the reaction monomer of polyethylene glycol ether carboxylic acid; after adjusting the temperature to 70°C, add 50g of itaconic Acid, 0.3g sodium 8-allyloxy-1,3,6-pyrenetrisulfonate, potassium persulfate (1.5g), mixture of sodium persulfate (3g) and potassium metabisulfinate (4.5g), 325g water After the completion, the reaction was continued at 70°C for 2.5h, and after cooling down to room temperature, a fluorescent tracer green and environmentally friendly polyglycol ether multifunctional water treatment agent (PEGEYYG) was prepared.
[0020] Gained PEGEYYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate up to 99.2%, for CaCO 3 Scale inhibition rate is 91.7%, for CaSO 4 The scale inhibition rate is 92.8%. , The light transmittance of Fe(III) solution, which characterizes th...
example 2
[0021] Example 2: at N 2 Add 100g of polyethylene glycol n-butyl ether into the protected reactor, add 50g of maleic anhydride and react at 60°C for 1.5h to obtain the reaction monomer of polyethylene glycol ether carboxylic acid; after adjusting the temperature to 70°C, add 85g of acrylic acid , 5.5g of 8-allyloxy-1,3,6-pyrene trisulfonate sodium, 17g of sodium persulfate, 500g of water, after completion, the temperature was raised to 80°C to continue the reaction for 3.5h, and after cooling down to room temperature, a fluorescent tracer Green environment-friendly polyethylene glycol ether multifunctional water treatment agent (PEGEYYG).
[0022] When the dosage of the obtained PEGEYYG water treatment agent was 8mg / L, the Ca 3 (PO 4 ) 2 Scale inhibition rate up to 98.6%, for CaCO 3 Scale inhibition rate is 90.3%, for CaSO 4 The scale inhibition rate is 92.5%, the light transmittance of the Fe(III) solution which characterizes the performance of dispersing iron is 16.6%, ...
example 3
[0023] Example 3: at N 2Add 150g of polyethylene glycol methyl ether to the protected reactor, add 360g of maleic anhydride and react at 100°C for 3 hours to obtain the reaction monomer of polyethylene glycol ether carboxylic acid; after adjusting the temperature to 80°C, add 120g of acrylic acid hydroxypropyl ester, 58g of 8-allyloxy-1,3,6-pyrene trisulfonate, 39g of sodium persulfate, and 890g of water. After the completion, the reaction was continued at 80°C for 3h, and after cooling down to room temperature, a fluorescent tracer green Environmentally friendly polyglycol ether multifunctional water treatment agent (PEGEYYG).
[0024] Gained PEGEYYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate can reach 98.1%, for CaCO 3 Scale inhibition rate is 89.2%, for CaSO 4 The scale inhibition rate is 91.5%, the light transmittance of the solution containing Fe(III), which characterizes the performance of dispersing iron, is 17.6%, and th...
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