CN102807286B - Fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent and preparation method thereof - Google Patents

Abstract

A fluorescent tracer green environment-friendly polyether corrosion and scale inhibition dispersant (APEYYG) is obtained by free radical copolymerization of polyether carboxylic acid reactive monomers and fluorescent monomers containing unsaturated double bonds. Its general structure is as follows : Among them: A is the repeating structural unit after polymerization of fluorescent monomers containing unsaturated double bonds, the degree of polymerization x is 5~5000, the degree of polymerization y is 5~5000, the degree of polymerization z is 5~5000, and the degree of polymerization p is 5~5000. 5000, the number of repeating units n is 1~100.

Description

A fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant and preparation method thereof

technical field

The invention relates to a fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) and a preparation method thereof, which is phosphorus-free, nitrogen-free, biodegradable and can realize A multifunctional water treatment agent with on-line detection and automatic administration is used for the corrosion and scale inhibition dispersion treatment of water quality, and belongs to the preparation and application technology of the corrosion and scale inhibition dispersion agent in the technical field of water treatment.

Background technique

In the circulating cooling water system in industrial production, due to the evaporation of water, the change of pH value, the rise of temperature, the change of water flow rate, the impurities in water, the pressure of the system and other factors during use, the alkaline earth metal cations contained in the water, such as Ca ²⁺ , Mg ²⁺ , Ba ²⁺ and a small amount of other cations such as Fe ²⁺ , Fe ³⁺ , Cu ²⁺ , Al ³⁺ , Zn ²⁺ etc. will interact with SO ₄ ^2- , CO ^3- , Anions such as HCO ^3- , OH, PO ₄ ^2- , SiO ₃ ^2- etc. generate insoluble inorganic salts such as Ca ₃ (PO ₄ ) ₂ , CaCO ₃ , CaSO ₄ etc. MgCO ₃ , Mg(OH) ₂ . Scale (commonly known as scale) is deposited on the surface of the exchanger, which reduces the heat transfer efficiency of the heat exchanger and causes corrosion under the scale. Therefore, the use of high-efficiency corrosion and scale inhibitors to inhibit scale formation and prevent metal corrosion is one of the key technologies to maintain the good operation of the cooling water circulation system; it is also an effective means to control scale formation and prevent metal corrosion in industrial water and wastewater treatment.

At present, the water treatment agents that have been researched more and have better scale and corrosion inhibition effects are mostly phosphates, such as hydroxyethylidene diphosphonic acid (HEDP), aminotrimethylene phosphonic acid (AMP) and 2-butane phosphonate- 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 HEDP, PBTC, etc. have relatively small molecular weight (<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 phosphoric acid in water containing high calcium and high iron Calcium and ferric organophosphate affect its application. The most important thing is that this kind of water treatment agent contains phosphorus, which can act as nutrients for bacteria and algae in water, which can easily cause eutrophication of water sources and cause water pollution; People pay more and more attention to green and environment-friendly water treatment agents. Especially in the 21st century, a major revolutionary change has taken place in the development direction of world chemistry and chemical engineering, which is marked by the concept of "green chemistry". Therefore, it is imperative to develop green water treatment agents without phosphorus and nitrogen.

The more researched phosphorus-free water treatment agents are carboxylic acid water treatment agents, such as polyacrylic acid (PAA), polyepoxysuccinic acid (PESA), etc., although US patents 5,062,962 and 5,147,555 show that PESA has a certain effect on CaCO ₃ and CaSO ₄ Good scale inhibition effect, but poor calcium phosphate inhibition effect, and poor dispersion and corrosion inhibition performance. American Betz Company launched a new generation of sulfonate copolymer AA–APES (acrylic acid–allyloxypolyethoxysulfate copolymer) in 2003. The efficiency of blocking Ca ₃ (PO ₄ ) ₂ was significantly improved, and AA–APES It has a higher tolerance to water hardness, suspended solids, and temperature. It is the latest generation of phosphorus-free water treatment agent for preventing Ca ₃ (PO ₄ ) ₂ scaling. However, APES still contains nitrogen elements that cause eutrophication of water sources and inhibits sulfuric acid. Calcium scale is less effective. In addition, a major disadvantage of phosphorus-free water treatment agents is that their structure does not contain phosphorus, so they cannot be detected by the commonly used ammonium molybdate spectrophotometric method, so that the concentration of water treatment agents cannot be detected online and automatically administered. The emergence of fluorescently labeled polymers provides a fast and accurate new method for microanalysis in industrial circulating cooling water treatment. Because its structural molecules contain fluorescent groups, the determination of fluorescently labeled substances can be done quickly and conveniently. Obtain its chemical concentration in the system, so as to realize accurate detection and dosing control of the system, so as to avoid corrosion, scaling and other unfavorable factors caused by inaccurate chemical detection in water, and can better carry out online treatment of water treatment chemicals Detection and automated drug delivery. The generation efficiency and control accuracy are greatly improved. Therefore, the development of a phosphorus-free, non-nitrogen, green and environmentally friendly water treatment agent that can be fluorescently traced and has multiple functions of corrosion inhibition, scale inhibition and dispersion, which can be widely used in industrial circulating water systems, has great significance for the replacement of corrosion inhibition, scale inhibition and dispersing agents. Important scientific significance and great application value.

The present invention adopts the green reaction process of maleic anhydride ring-opening method to prepare the polyether carboxylic acid reactive monomer, and then copolymerizes with the fluorescent monomer containing unsaturated double bonds to prepare a fluorescent tracer and has excellent scale inhibition and retardation It is a green and environment-friendly polyether water treatment agent with erosion and dispersion properties.

Contents of the invention

Technical problem: The purpose of this invention is to provide a fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG), which is phosphorus-free, nitrogen-free, biodegradable, and has excellent corrosion resistance and scale inhibitory dispersant. Ca ₃ (PO ₄ ) ₂ , CaCO ₃ , CaSO ₄ scaling effect, good corrosion inhibition and dispersion performance, is an environmentally friendly polyether corrosion and scale inhibition dispersant capable of on-line detection and automatic dosing.

Technical solution: A fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) is obtained by free radical copolymerization of polyether carboxylic acid reactive monomers and fluorescent monomers containing unsaturated double bonds. Its structure The general formula is as follows:

Among them: A is the repeating structural unit after polymerization of fluorescent monomers containing unsaturated double bonds, the degree of polymerization x is 5~5000, the degree of polymerization y is 5~5000, the degree of polymerization z is 5~5000, and the degree of polymerization p is 5~5000. 5000, the number of repeating units n is 1~100.

The preparation method of the above-mentioned a kind of fluorescent tracer green environment-friendly polyether corrosion and scale inhibition dispersant is:

Under _N2 atmosphere, based on the quality of allyl polyethylene glycol monoether, add allyl polyethylene glycol monoether and maleic anhydride 0.05 to 5 times the mass of allyl polyethylene glycol monoether In the reaction kettle, react at 50~150°C for 0.5~10h to obtain the polyether carboxylic acid reactive monomer. After adjusting the reaction temperature to 60-95°C, add 0.001-0.5 times the mass of allyl polyethylene glycol monoether of the fluorescent monomer containing unsaturated double bonds, and then add 0.1-5 times the mass of allyl polyethylene glycol Monoether quality water, after mixing, add dropwise an inorganic initiator aqueous solution with a mass percent concentration of 5% to 60%. The amount of the inorganic initiator added is 0.01 to 0.5 times the mass of allyl polyethylene glycol monoether, After ~5 hours of dripping, continue to react at 60~95°C for 0.5~10 hours, cool to room temperature, and prepare a fluorescent tracer green environmental protection polyether corrosion and scale inhibitor dispersant with a solid content of 5~80wt%.

The ethylenically unsaturated double bond-containing monomers described in the preparation method of the above-mentioned fluorescent tracer green environment-friendly polyether carboxylate corrosion and scale inhibitor are acrylic acid, methacrylic acid, maleic anhydride, maleic acid , itaconic acid, fumaric acid, hydroxymethyl acrylate, hydroxymethyl methacrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, hydroxybutyl acrylate, Hydroxyhexyl acrylate, monomethyl maleate, monoethyl maleate, monoisopropyl maleate, isobutyl maleate, mono-tert-butyl maleate, monoallyl maleate, rich A combination of one or more of monomethyl malate, monoethyl fumarate, monopropyl fumarate, dihydroxypropyl fumarate or monobutyl fumarate; The fluorescent monomer of the bond is 8-allyloxy-1,3,6-sodium pyrene trisulfonate and 8-(4-vinylbenzyloxy)-1,3,6-pyrene trisulfonate sodium One or a combination of two; the inorganic initiator is one or more of sodium persulfate, potassium persulfate, sodium persulfonate, potassium persulfonate and hydrogen peroxide.

Beneficial effects: A fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) of the present invention has the following excellent properties:

(1) The polyether corrosion and scale inhibitor dispersant does not contain eutrophic elements such as phosphorus and nitrogen, and has good biodegradability. It is a new type of green water treatment agent. The preparation process is green and environment-friendly, the synthesis process uses environmentally friendly and cheap water as the reaction solvent, the reaction process adopts the "one-pot cooking" method, no separation is required, the operation is simple and convenient, and the production cost is low.

(2) The structure of the polyether corrosion and scale inhibitor dispersant contains highly hydrophilic polyether groups and carboxylate ions that can chelate with calcium ions. It has a highly effective inhibitory effect on calcium sulfate scale.

(3) The polyether anti-corrosion and anti-scaling dispersant has good compatibility, and can be used in combination with water treatment agents such as organic phosphates and zinc salt corrosion inhibitors, or used alone.

(4) Since the polyether corrosion and scale inhibitor dispersant contains fluorescent groups, it can accurately detect the concentration of water treatment chemicals, thereby realizing online detection and automatic drug delivery.

The static Ca ₃ (PO ₄ ) ₂ scaling experiment of the present invention is carried out according to the experiment 402 (GB50050-95) of the "Cooling Water Analysis and Experimental Methods" of China Petroleum and Chemical Corporation; Calculation of scale rate is carried out according to "Petroleum and Natural Gas Industry Standard of the People's Republic of China—SY/T5673-1993"; the dispersed Fe(Ⅲ) deposition experiment is carried out according to "Cooling Water Treatment Agent Dispersed Fe The evaluation of deposition ability" was carried out, and the performance of dispersing Fe(Ⅲ) was characterized by the light transmittance of Fe(III)-containing solution. The lower the light transmittance, the better the performance of dispersing Fe(Ⅲ). The test of corrosion inhibition performance refers to "National Standard of the People's Republic of China GB/T18175-2000, Determination of Corrosion Inhibition Performance of Water Treatment Agents - Rotating Coupon Method", and the carbon steel coupon complies with the requirements of HG/T3523.

Detailed ways

Example 1: Add 100g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 100g of maleic anhydride and react at 65°C for 2 hours to obtain a polyether carboxylic acid reaction monomer; add 0.5g of 8-allyl Oxy-1,3,6-sodium pyrenetrisulfonate, then add 200g water, mix well and adjust the temperature to 70°C, then add 12g sodium persulfate (dissolved in 60g water) dropwise, after 1.5h dropwise , the temperature was raised to 80°C to continue the reaction for 3 hours, and after cooling down to room temperature, a fluorescent tracer green and environmentally friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 99.5%, the scale inhibition rate to CaCO ₃ is 92.7%, and the scale inhibition rate to CaSO ₄ is 95.8%. The light transmittance of the Fe(III) solution containing iron dispersion properties is 15.4%, and the corrosion inhibition rate for carbon steel can reach 94.3%.

Example 2: Add 150g of allyl polyethylene glycol monoether and 100g of maleic anhydride to a reactor protected by _N2 and react at 70°C for 1.5h to obtain a polyether carboxylic acid reaction monomer; add 5g of 8-allyl Oxy-1,3,6-pyrene trisulfonate, then add 80g of water, mix well and adjust the temperature to 75°C, then add dropwise 15g of potassium persulfate (7g) and sodium persulfate (8g) mixture (dissolving After the dropwise addition, the temperature was raised to 90°C, and the reaction was continued for 2.5 hours. After cooling down to room temperature, a fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 99.6%, the scale inhibition rate to CaCO ₃ is 91.9%, and the scale inhibition rate to CaSO ₄ is 95.2%. , The light transmittance of Fe(III) solution, which characterizes the performance of dispersing iron, is 16.6%, and the corrosion inhibition rate of carbon steel can reach 93.9%.

Example 3: Add 120g of allyl polyethylene glycol monoether and 130g of maleic anhydride to a reactor protected by _N2 , react at 100°C for 2 hours, add 20g of 8-allyloxy-1,3,6-pyrene Sodium sulfonate, then add 280g of water, mix well and adjust the temperature to 80°C, then add 16g of sodium persulfate (dissolved in 60g of water) dropwise, after the dropwise addition, raise the temperature to 95°C, continue the reaction for 2 hours, drop After reaching room temperature, the fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 97.1%, the scale inhibition rate to CaCO ₃ is 88.9%, and the scale inhibition rate to CaSO ₄ is 92.5%. The light transmittance of the iron-containing Fe(III) solution is 16.9%, and the corrosion inhibition rate for carbon steel can reach 92.8%.

Example 4: Add 180g of allyl polyethylene glycol monoether to a reaction kettle protected by _N2 , add 80g of maleic anhydride and react at 120°C for 1h, add 60g of 8-allyloxy-1,3,6-pyrene Sodium sulfonate, then add 300g water, mix well and adjust the temperature to 60°C, then add dropwise 12g of sodium persulfate (6g) and potassium persulfate (6g) mixture (dissolved in 60g of water), after the dropwise addition, put The temperature was raised to 85°C, and the reaction was continued for 2.5 hours. After cooling down to room temperature, a fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 96.3%, the scale inhibition rate to CaCO ₃ is 91.5%, and the scale inhibition rate to CaSO ₄ is 93.7%. The light transmittance of the iron-containing Fe(III) solution is 17.6%, and the corrosion inhibition rate for carbon steel can reach 93.3%.

Example 5: Add 150g of allyl polyethylene glycol monoether and 60g of maleic anhydride to a reactor protected by N2, react at 130°C for 1.5h under _N2 protection, add 0.15g of 8- ₍ 4-vinyl benzyloxy)-1,3,6-pyrene trisulfonate, then add 120g of water, mix well and adjust the temperature to 80°C, then add 14g of sodium persulfate (dissolved in 50g of water) dropwise, after the dropwise addition The temperature was raised to 90°C, and the reaction was continued for 3 hours. After cooling down to room temperature, a green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 97.9%, the scale inhibition rate to CaCO ₃ is 91.4%, and the scale inhibition rate to CaSO ₄ is 93.6%. The light transmittance of the Fe(III) solution containing iron performance is 18.2%. The corrosion inhibition rate of carbon steel can reach 95.7%.

Example 6: Add 200g allyl polyethylene glycol monoether to a reactor protected by _N2 , add 100g maleic anhydride and react at 70°C for 2.5h, add 20g8-(4-vinylbenzyloxy)-1 , 3,6-pyrene trisulfonate, then add 420g of water, mix well and adjust the temperature to 80°C, then add dropwise 10g of sodium persulfate (5g) and sodium persulfonate (5g) mixture (dissolved in 50g of water ), after the dropwise addition, continue to react at 80°C for 4.5h, and after cooling down to room temperature, a fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) is prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 99.7%, the scale inhibition rate to CaCO ₃ is 91.3%, and the scale inhibition rate to CaSO ₄ is 95.8%. The light transmittance of the Fe(III) solution containing iron properties is 14.5%. The corrosion inhibition rate of carbon steel can reach 96.1%.

Example 7: 100g of allyl polyethylene glycol monoether was added to a reactor protected by _N2 , 50g of maleic anhydride was added to react at 100°C for 3h, 40g of 8-(4-vinylbenzyloxy)-1 was added, Add 260g of water to 3,6-pyrene trisulfonate, mix well and adjust the temperature to 80°C, then add 10g of potassium persulfate (2g) and potassium persulfonate (8g) dropwise (dissolved in 80g of water) , After the dropwise addition, continue to react at 80°C for 7.5h, and after cooling down to room temperature, a fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) is prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 97.4%, the scale inhibition rate to CaCO ₃ is 91.3%, and the scale inhibition rate to CaSO ₄ is 93.59%. The light transmittance of the Fe(III) solution containing iron properties is 14.6%. The corrosion inhibition rate of carbon steel can reach 96.6%.

Example 8: Add 100g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 10g of maleic anhydride and react at 145°C for 1h, add 10g of 8-allyloxy-1,3,6-pyrene A mixture of sodium trisulfonate (5g) and 8-(4-vinylbenzyloxy)-1,3,6-pyrene trisulfonate sodium (5g), then add 360g of water, mix well and adjust the temperature to 60 ℃, then add dropwise 18g of sodium persulfate (6g), potassium persulfate (6g) and potassium persulfonate (6g) mixture (dissolved in 120g of water). After room temperature, the fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 98.2%, the scale inhibition rate to CaCO ₃ is 90.6%, and the scale inhibition rate to CaSO ₄ is 94.8%. The light transmittance of the Fe(III) solution containing iron properties is 14.4%. The corrosion inhibition rate of carbon steel can reach 94.2%.

Example 9: Add 150g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 50g of maleic anhydride and react at 60°C for 2h, add 50g of 8-allyloxy-1,3,6-pyrene A mixture of sodium trisulfonate (25g) and 8-(4-vinylbenzyloxy)-1,3,6-pyrene trisulfonate sodium (25g), then add 600g of water, mix well and adjust the temperature to 75 ℃, then add 15g of hydrogen peroxide (dissolved in 60g of water) dropwise. After the dropwise addition, raise the temperature to 85℃ and react for 3.5h. agent (APEYYG).

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 99.1%, the scale inhibition rate to CaCO ₃ is 91.2%, and the scale inhibition rate to CaSO ₄ is 93.6%. The light transmittance of the Fe(III) solution containing iron performance is 13.9%. The corrosion inhibition rate of carbon steel can reach 96.8%.

Example 10: Add 100g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 30g of maleic anhydride and react at 50°C for 7h, add 10g of 8-allyloxy-1,3,6-pyrene A mixture of sodium trisulfonate (3g) and 8-(4-vinylbenzyloxy)-1,3,6-pyrene trisulfonate sodium (7g), then add 390g of water, mix well and adjust the temperature to 70 ℃, add 15g of sodium persulfate (5g) and hydrogen peroxide (10g) dropwise (dissolved in 80g of water). Green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG).

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 95.7%, the scale inhibition rate to CaCO ₃ is 88.1%, and the scale inhibition rate to CaSO ₄ is 90.4%. The light transmittance of the Fe(III) solution containing iron performance is 19.3%. The corrosion inhibition rate of carbon steel can reach 89.8%.

Example 11: Add 200g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 50g of maleic anhydride and react at 120°C for 4h, add 30g of 8-allyloxy-1,3,6-pyrene A mixture of sodium trisulfonate (10g) and 8-(4-vinylbenzyloxy)-1,3,6-pyrenetrisulfonate sodium (20g), then add 400g of water, mix well and adjust the temperature to 90 ℃, add dropwise 30g of sodium persulfate (10g), potassium persulfate (10g), hydrogen peroxide (10g) mixture (dissolved in 100g of water). After room temperature, the fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 98.9%, the scale inhibition rate to CaCO ₃ is 91.5%, and the scale inhibition rate to CaSO ₄ is 93.9%. The light transmittance of the Fe(III) solution containing iron properties is 15.2%. The corrosion inhibition rate of carbon steel can reach 92.3%.

Example 12: Add 200g of allyl polyethylene glycol monoether to a reactor protected by _N2 , add 100g of maleic anhydride and react at 150°C for 1.5h, add 30g of 8-allyloxy-1,3,6- A mixture of sodium pyrenetrisulfonate (10g) and 8-(4-vinylbenzyloxy)-1,3,6-sodium pyrenetrisulfonate (20g), then add 800g of water, mix well and adjust the temperature to 60°C, add dropwise 20g of sodium persulfate (5g), potassium persulfonate (5g), hydrogen peroxide (10g) mixture (dissolved in 150g of water), after the dropwise addition, heat up to 95°C and react for 2.5h, After cooling down to room temperature, the fluorescent tracer green and environment-friendly polyether corrosion and scale inhibitor dispersant (APEYYG) was prepared.

When the dosage of the obtained APEYYG is 8mg/L, the scale inhibition rate to Ca ₃ (PO ₄ ) ₂ can reach 99.3%, the scale inhibition rate to CaCO ₃ is 92.2%, and the scale inhibition rate to CaSO ₄ is 95.9%. The light transmittance of the Fe(III) solution containing iron properties is 14.3%. The corrosion inhibition rate of carbon steel can reach 95.1%.

Claims (3)

1. A fluorescent tracer green environment-friendly polyether corrosion and scale inhibition dispersant, characterized in that the corrosion and scale inhibition dispersant is free from polyether carboxylic acid reaction monomers and fluorescent monomers containing unsaturated double bonds Based copolymerization, its general structural formula is as follows:

Among them: A is a repeating structural unit after polymerization of fluorescent monomers containing unsaturated double bonds, the degree of polymerization x is 5 to 5000, the degree of polymerization y is 5 to 5000, the degree of polymerization z is 5 to 5000, and the degree of polymerization p is 5 to 5000. 5000, the number of repeating units n is 1-100. 2. a kind of preparation method of a kind of fluorescent tracer green environment-friendly type polyether corrosion and scale inhibition dispersant as claimed in claim 1, is characterized in that this preparation method is: Under _N2 atmosphere, based on the quality of allyl polyethylene glycol monoether, add allyl polyethylene glycol monoether and maleic anhydride 0.05 to 5 times the mass of allyl polyethylene glycol monoether In the reaction kettle, react at 50-150°C for 0.5-10 hours to obtain the polyether carboxylic acid reaction monomer; after adjusting the reaction temperature to 60-95°C, add 0.001-0.5 times the mass of allyl polyethylene glycol monoether Fluorescent monomers containing unsaturated double bonds, then add 0.1 to 5 times the weight of allyl polyethylene glycol monoether water, mix well, add dropwise an inorganic initiator aqueous solution with a concentration of 5% to 60% by mass, The amount of inorganic initiator added is 0.01 to 0.5 times the mass of allyl polyethylene glycol monoether, after 0.5 to 5 hours of dripping, continue to react at 60 to 95°C for 0.5 to 10 hours, cool to room temperature, and obtain solid The invention discloses a fluorescent tracer green environment-friendly polyether corrosion and scale inhibitor dispersant with a content of 5-80 wt%. 3. the preparation method of a kind of fluorescent tracer green environment-friendly type polyether corrosion and scale inhibition dispersant according to claim 2, it is characterized in that the fluorescent monomer of unsaturated double bond described in this preparation method is 8- Sodium (4-vinylbenzyloxy)-1,3,6-pyrenetrisulfonate.