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Fluorescent tracing green environmental-friendly polyglycol type water treatment agent and preparation method thereof

A polyethylene glycol-based, green and environmentally friendly technology, used in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc. The problems of poor zinc hydroxide ability and poor corrosion inhibition performance can achieve the effect of simple and convenient operation, online detection and automatic administration, and good compatibility.

Active Publication Date: 2014-01-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The more researched phosphorus-free water treatment agents are carboxylic acid water treatment agents, such as hydrolyzed polycalcium maleate (HPMA), polyacrylic acid (PAA), polyepoxysuccinic acid (PESA), maleic anhydride-acrylic acid copolymer (BC-283) and acrylic acid-acrylic acid ester copolymer (T-225), etc., such water treatment agents are effective against CaCO 3 and CaSO 4 It has good scale inhibition effect, but the effect of calcium phosphate inhibition is very poor, and the ability to disperse iron hydroxide and stabilize zinc hydroxide is poor, and its corrosion inhibition performance is not good

Method used

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  • Fluorescent tracing green environmental-friendly polyglycol type water treatment agent and preparation method thereof
  • Fluorescent tracing green environmental-friendly polyglycol type water treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1: at N 2 Add 100g of polyethylene glycol to the protected reactor, add 120g of maleic anhydride and react at 65°C for 5 hours to obtain the reaction monomer of polyethylene glycol carboxylic acid; after adjusting the temperature to 70°C, add 50g of itaconic acid, 0.2 g 8-allyloxy-1,3,6-pyrene trisulfonate sodium, potassium persulfate (1g), sodium persulfate (3g) and potassium metabisulfinate (5g) mixture, 320g of water, after completion in The reaction was continued at 70°C for 2.5h, and after cooling down to room temperature, a fluorescent tracer green and environmentally friendly polyethylene glycol-based multifunctional water treatment agent (PEGYYG) was prepared.

[0019] Gained PEGYYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate can reach 99.3%, for CaCO 3 Scale inhibition rate is 91.6%, for CaSO 4 The scale inhibition rate is 94.8%. , the light transmittance of Fe(III) solution, which characterizes the perfo...

example 2

[0020] Example 2: at N 2 Add 100g of polyethylene glycol into the protected reactor, add 50g of maleic anhydride and react at 60°C for 1.5h to obtain polyethylene glycol carboxylic acid reaction monomer; after adjusting the temperature to 70°C, add 80g of acrylic acid, 5g of 8 -Allyloxy-1,3,6-pyrene trisulfonate sodium, 19g sodium persulfate, 800g 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 environmental protection type Polyethylene glycol multifunctional water treatment agent (PEGYYG).

[0021] When the dosage of the obtained PEGYYG water treatment agent was 8mg / L, the Ca 3 (PO 4 ) 2 Scale inhibition rate up to 99.2%, for CaCO 3 Scale inhibition rate is 92.3%, for CaSO 4 The scale inhibition rate is 95.5%, the light transmittance of the Fe(III) solution, which characterizes the performance of dispersing iron, is 16.1%, and the corrosion inhibition rat...

example 3

[0022] Example 3: at N 2 Add 150g polyethylene glycol to the protected reactor, add 360g maleic anhydride and react at 100°C for 3 hours to obtain polyethylene glycol carboxylic acid reaction monomer; after adjusting the temperature to 80°C, add 120g hydroxypropyl acrylate, 50g 8-allyloxy-1,3,6-pyrene trisulfonate sodium, 19g sodium persulfate, 600g water, after completion, continue to react at 80°C for 3h, after cooling down to room temperature, a fluorescent tracer green environmental protection type Polyethylene glycol multifunctional water treatment agent (PEGYYG).

[0023] Gained PEGYYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate can reach 98.9%, for CaCO 3 Scale inhibition rate is 89.7%, for CaSO 4 The scale inhibition rate is 92.5%, the light transmittance of the solution containing Fe(III) which characterizes the performance of dispersing iron is 16.6%, and the corrosion inhibition rate of carbon steel can reach 91.6%.

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Abstract

The invention discloses a fluorescent tracing green environmental-friendly polyglycol type water treatment agent (namely PEGEYYG) which is prepared by carrying out free radical copolymerization on a polyethylene glycol carboxylic acid reaction monomer, a monomer containing vinyl unsaturated double-bond and a fluorescent monomer containing unsaturated double-bond. According to the structural general formula of the water treatment agent, A is a repeating structure unit after the polymerization of the monomer containing the vinyl unsaturated double-bond, B is a repeating structure unit after the polymerization of the fluorescent monomer containing the unsaturated double-bond, the polymerization degrees x, y, z, p, q and g are respectively 1-5000, and the repeating unit m is 3-1000.

Description

technical field [0001] The invention relates to a fluorescent tracer green environment-friendly polyethylene glycol multifunctional water treatment agent (PEGYYG) and a preparation method thereof, which is a phosphorus-free, nitrogen-free and biodegradable water treatment agent suitable for industrial circulating cooling water systems. An environment-friendly multifunctional water treatment agent is used for the dispersed treatment of corrosion and scale inhibition of water quality, and belongs to the preparation and application technology of water treatment agents in the technical field of water treatment. Background technique [0002] Because the use of phosphorus-containing water treatment chemicals is likely to cause bacteria and algae to multiply and form red tides, resulting in pollution to the water environment. With the increasing awareness of environmental protection, phosphorus-based formulations are currently restricted because they contain phosphorus and nitrogen....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10C08F290/06
Inventor 周钰明刘广卿黄镜怡姚清照凌磊王虎传曹科刘亚辉吴文导孙伟
Owner SOUTHEAST UNIV
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