Fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent and preparation method thereof

A water treatment agent, an environmentally friendly technology, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve problems such as water environmental pollution, achieve simple and convenient operation, and green preparation process Effects of environmental friendliness and good biodegradability

Inactive Publication Date: 2012-12-05
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a class of water treatment agents that have been studied more and have better anti-scaling and corrosion effects are mostly phosphates, such as hydroxyethylene diphosphonic acid (HEDP), polyol phosphate (PAPE), amino trimethylene phosphonic acid (ATMP), 2-hydroxyphosphoroacetic acid (HPAA), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), ethylenediaminetetramethylenephosphonic acid (EDTMP), and polyaminopolyethers Phosphate-based tetramethylene phosphoric acid (PAPEMP), etc., because the use of phosphorus-containing water treatment chemicals is likely to cause a large number of bacteria and algae to form red tides and cause pollution to the water environment, so phosphorus-based formulations are currently limited because they usually contain phosphorus and nitrogen. Therefore, the development of phosphorus-free multifunctional water treatment agents has become the general trend of the 21st century

Method used

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  • Fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent and preparation method thereof
  • Fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0019] Example 1: at N 2 Add 100g of polyethylene glycol diallyl ether to the protected reactor, adjust the temperature to 70°C, add 25g of itaconic acid, 0.2g of 8-allyloxy-1,3,6-pyrene trisulfonate sodium , Potassium persulfate (0.5g), mixture of sodium persulfate (0.5g) and potassium metabisulfinate (0.5g), 220g of water, after completion, continue to react at 70°C for 3.5h, after cooling down to room temperature, the fluorescent Identify phosphorus-free environmentally friendly polyether multifunctional water treatment agent (PEGDEYG).

[0020] Gained PEGDEYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate up to 99.5%, for CaCO 3 Scale inhibition rate is 92.7%, for CaSO 4 The scale inhibition rate is 95.6%. , The light transmittance of Fe(III) solution, which characterizes the performance of dispersing iron, is 15.2%, and the corrosion inhibition rate of carbon steel can reach 93.7%.

example 2

[0021] Example 2: at N 2 Add 100g of polyethylene glycol divinyl ether into the protected reactor, adjust the temperature to 70°C, add 188g of acrylic acid, 8.5g of 8-allyloxy-1,3,6-sodium pyrenetrisulfonate, 3g of over Sodium sulfate and 335g of water, after completion, the temperature was raised to 80°C to continue the reaction for 3 hours, and after cooling down to room temperature, a fluorescent label-free phosphorus-free and environmentally friendly polyether multifunctional water treatment agent (PEGDEYG) was prepared.

[0022] When the dosage of the obtained PEGDEYG water treatment agent is 8mgL, the Ca 3 (PO 4 ) 2 Scale inhibition rate up to 99.7%, for CaCO 3 Scale inhibition rate is 91.5%, for CaSO 4 The scale inhibition rate is 93.8%, the light transmittance of the Fe(III) solution which characterizes the performance of dispersing iron is 16.1%, and the corrosion inhibition rate for carbon steel can reach 94.7%.

example 3

[0023] Example 3: at N 2 Add 150g of polyethylene glycol diallyl ether to the protected reactor, adjust the temperature to 80°C, add 120g of hydroxypropyl acrylate, 73g of 8-allyloxy-1,3,6-sodium pyrenetrisulfonate , 16g of sodium persulfate, and 875g of water. After the completion, the reaction was continued at 80°C for 6.8h, and after cooling down to room temperature, a fluorescent label-free phosphorus-free environmentally friendly polyether multifunctional water treatment agent (PEGDEYG) was prepared.

[0024] Gained PEGDEYG water treatment agent is when dosage is 8mg / L, to Ca 3 (PO 4 ) 2 Scale inhibition rate up to 98.7%, for CaCO 3 Scale inhibition rate is 91.3%, for CaSO 4 The scale inhibition rate is 92.8%, the light transmittance of the Fe(III) solution that characterizes the performance of dispersing iron is 17.5%, and the corrosion inhibition rate for carbon steel can reach 90.5%.

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Abstract

The invention provides a fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent (PEGDEYG). The fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent is prepared by subjecting polyethylene glycol alkadiene ether, monomer with vinyl unsaturated double bond, and fluorescent monomer with unsaturated double bondto free-radical copolymerization; the agent has a structural formula shown in the description, wherein A is a repetition structure unit obtained by copolymerizing the monomer with vinyl unsaturated double bond, G is -CH2-O- or -O-; and the repetition structure unit has the polymerization degree x of 1 to 5000, and polymerization degree y of 1 to 5000, polymerization degree z of 1 to 5000, polymerization degree p of 1 to 5000, polymerization degree q of 1 to 5000, polymerization degree r of 1 to 5000, and the repetitive unit m is 3 to 1000.

Description

technical field [0001] The invention relates to a phosphor-free and environmentally-friendly polyether multifunctional water treatment agent (PEGDEYG) with a fluorescent label and a preparation method thereof, which is a phosphorus-free and biodegradable environmental-friendly multifunctional water treatment agent suitable for industrial circulating cooling water systems The invention is used for corrosion and scale inhibition dispersion treatment of water quality, and belongs to the preparation and application technology of water treatment agent in the technical field of water treatment. Background technique [0002] The use of circulating cooling water is a common way to save industrial water, but inorganic metal ions such as calcium, magnesium, and iron ions in the water after repeated use of the cooling water can easily form insoluble salts such as calcium phosphate, calcium carbonate, magnesium carbonate, and iron hydroxide Such as inorganic scale, whether it is calcium...

Claims

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Application Information

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IPC IPC(8): C02F5/10C08F283/06
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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