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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

Inactive Publication Date: 2013-12-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the water treatment agents that have been studied more and have better scale inhibition effects are mostly phosphates, such as hydroxyethylidene diphosphonic acid (HEDP), aminotrimethylene phosphonic acid (AMP) and 2-phosphonic acid butane-1, 2,4-tricarboxylic acid (PBTC), etc., although this kind of water treatment agent has excellent performance in inhibiting calcium carbonate deposition and good corrosion inhibition performance, but due to the relatively small molecular weight of HEDP and PBTC (<600) , less functional groups, poor inhibition and dispersion of calcium phosphate scale and iron oxide particles, poor stability to zinc salts, easy to form insoluble organic calcium phosphate in water containing high calcium and high iron and organophosphate iron, affecting its application

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a fluorescent tracing green environmental-friendly polyglycol ether water treatment agent (namely PEGEYYG) which is prepared by carrying out free radical copolymerization on a polyglycol ether 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 and z are respectively 1-5000, the repeating unit m is 3-1000, and R refers to saturated alkyl of C1-C18.

Description

technical field [0001] The invention relates to a fluorescent tracer green environment-friendly polyethylene glycol ether multifunctional water treatment agent (PEGEYYG) 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] After repeated use of cooling water, inorganic metal ions such as calcium and magnesium ions in the water can easily form inorganic scales such as insoluble salts such as calcium phosphate, calcium carbonate, calcium sulfate, and magnesium carbonate. Corrosion of iron and steel in the system makes the content of iron ions in the circul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10
Inventor 周钰明黄镜怡刘广卿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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