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 environmental protection multifunctional water treatment agent, water treatment agent preparation and application, and can solve the problem of poor inhibition and dispersion of calcium phosphate scale and 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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