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CN109052675A - Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof - Google Patents

Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof Download PDF

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Publication number
CN109052675A
CN109052675A CN201810932737.5A CN201810932737A CN109052675A CN 109052675 A CN109052675 A CN 109052675A CN 201810932737 A CN201810932737 A CN 201810932737A CN 109052675 A CN109052675 A CN 109052675A
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acrylamide
corrosion inhibitor
incrustation corrosion
environment
acrylic acid
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管敏锋
邓晓虎
柳彩梅
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Kuwait Angel Environmental Technology Group Ltd By Share Ltd
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Kuwait Angel Environmental Technology Group Ltd By Share Ltd
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Priority to CN201810932737.5A priority Critical patent/CN109052675A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
    • C02F5/125Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/08Corrosion inhibition
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/22Eliminating or preventing deposits, scale removal, scale prevention

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The invention discloses a kind of environment-friendly type anti-incrustation corrosion inhibitors and preparation method thereof, each component and its weight percent relative to the anti-incrustation corrosion inhibitor gross weight are as follows: hydrolysis of polymaleic anhydride 10%~15%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer 14%~20%, ammonium persulfate 0.5%~1%, carboxyethyl thiosuccinic acid 5%~10%, sodium gluconate 5%~8%, methyl benzotriazazole 1%~2%, surplus are deionized water.Anti-incrustation corrosion inhibitor of the invention is without phosphorus, without zinc, environmentally friendly, while scale inhibitor excellent effect.

Description

Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof
Technical field
The present invention relates to a kind of industrial water conditioning agents, and in particular to a kind of environment-friendly type for industrial circulating cooling water processing Anti-incrustation corrosion inhibitor and preparation method thereof.
Background technique
Currently, the medicament of phosphorous formula is still occupied an leading position in industrial circulating water water treatment agent field, phosphorous medicament Technology maturation, cost is controllable, and treatment effect substantially conforms to the standard of country or relevant industries.But with the row of phosphorus-containing wastewater It puts, in fact on the one hand exacerbates the process of water eutrophication, destroy original ecosystem, on the other hand also increase The difficulty of waste water treatment and cycling and reutilization.In these years, as the people and public organization are to the gradually pass of environmental protection cause The use of the enhancing of note and environmental consciousness, phosphorous medicament has had become increasingly limited, and researches and develops and produce environment-friendly type resistance The hot topic that dirty corrosion inhibiter has become water process practitioner captures field.
In addition to phosphorus-containing compound in water treatment agent, zinc salt is also currently used cooling water corrosion inhibitor.Zinc salt mainly by Zn2+Ion plays corrosion inhibition, forms a film rapider, when cooperateing with use with other corrosion inhibiter such as phosphate, organic phosphonate etc., Good corrosion mitigating effect can be obtained.But zinc is toxic, is necessarily less than 5mg/L using concentration.Zinc is to fish and aquatile The toxicity that toxicity compares people is big, therefore fishery water quality requires to be 0.1mg/L.In addition, zinc has generation heavy when the pH of system is greater than 8.3 The tendency in shallow lake.
In these cases, it has been very urgent for developing without phosphorus environment-friendly type anti-incrustation corrosion inhibitor without zinc.
About without phosphorus environment-friendly type anti-incrustation corrosion inhibitor without zinc, Chinese patent literature CN102351328B(application number 201110274827.8) a kind of green total organic carbon steel anti-incrustation corrosion inhibitor for recirculating cooling water system, the scale inhibition are disclosed Corrosion inhibiter is made of antisludging agent and corrosion inhibiter, and wherein antisludging agent is by hydrolysis of polymaleic anhydride and polyacrylic acid, polymethylacrylic acid, Acrylic acid/hydroxypropyl acrylate copolymer, acrylic acid/hydroxypropyl acrylate/methyl acrylate terpolymer, acrylic acid/2- Acrylamido -2- methyl propane sulfonic acid analog copolymer is one such or several compositions, corrosion inhibiter by oxalic acid or oxalates and Alpha-hydroxy carboxylic acid compounds or its salt and silicate composition.The anti-incrustation corrosion inhibitor meets environmental requirement, but silicon is added in anti-incrustation corrosion inhibitor Hydrochlorate easily forms silicon dirt in high hardness water, limits its scope of application.
Chinese patent literature CN102010077A(application number 201010610661.8) disclose a kind of non-phosphorus scale inhibition Agent and preparation process, non-phosphorus scale and corrosion inhibitor include 3 kinds of scale inhibition ingredient, 4 kinds of inhibition ingredient, and 3 kinds of scale inhibition ingredients are polycyclic oxygen amber Meticortene Solu-Delta-cortef, hydrolysis of polymaleic anhydride, acrylic acid/ethyl acrylate/2- acrylamide-2-methyl propane sulfonic copolymer;4 kinds of inhibitions Ingredient is methylbenzotrazole, sodium gluconate, sodium tungstate, corrosion inhibiter imidazoline quaternary ammonium salt;The mass percent of its raw material is Polyepoxy sodium succinate 40%~50%, hydrolysis of polymaleic anhydride 5%~10%, acrylic acid/ethyl acrylate/2- acrylamide -2- Methyl propane sulfonic acid copolymer 5%~10%;Methylbenzotrazole 1%~3%, sodium gluconate 8%~10%, sodium tungstate 1%~3%, miaow Oxazoline quaternary ammonium salt 10%~15%.The anti-incrustation corrosion inhibitor has preferably taken into account anticorrosion-antiscaling property, but imidazoline quaternary ammonium salt belongs to table Face activating agent, during actual use be also easy to produce more foam, cannot be used in the circulation of air separation unit.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of without phosphorus, environment-friendly types for working well without zinc, scale inhibitor Anti-incrustation corrosion inhibitor and preparation method thereof.
The technical solution for realizing an object of the present disclosure is a kind of environment-friendly type anti-incrustation corrosion inhibitor, each component and its relative to institute State the weight percent of anti-incrustation corrosion inhibitor gross weight are as follows: hydrolysis of polymaleic anhydride 10%~15%, acrylic acid/2- acrylamide -2- first Base propane sulfonic acid/N tert butyl acrylamide terpolymer 14%~20%, ammonium persulfate 0.5%~1%, carboxyethyl thiosuccinic acid 5%~10%, sodium gluconate 5%~8%, methyl benzotriazazole 1%~2%, surplus is deionized water.
The acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer is propylene Three kinds of acid, 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide monomers are sent out under the action of ammonium persulfate initiator The terpolymer that raw free radical polymerization obtains, acrylic acid, 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide Mass ratio be 8~10: 3~5: 3~5.
The dosage of the ammonium persulfate and the mass ratio of acrylic acid are 0.5~1: 8~10.
Further, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer phase Weight percent for the anti-incrustation corrosion inhibitor gross weight is 16%~18%.
Further, carboxyethyl thiosuccinic acid relative to the anti-incrustation corrosion inhibitor gross weight weight percent be 5%~ 8%。
A kind of preparation method of environment-friendly type anti-incrustation corrosion inhibitor as described above, comprising the following steps:
1. preparing acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer.
2. sequentially adding hydrolysis of polymaleic anhydride, carboxyethyl thiosuccinic acid, sodium gluconate, first into terpolymer Base benzotriazole and balance deionized water, stir.
3. filtering, pack.
Step 1. in, by 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide and portions of de-ionized water according to Secondary investment reaction kettle opens stirring, is warming up to 80 DEG C~90 DEG C, after reaching temperature, and over cure is added dropwise simultaneously respectively into reaction kettle Sour aqueous ammonium and acrylic acid, time for adding are 3~4 hours, heat preservation are added dropwise 1~2 hour, obtain acrylic acid/2- propylene Amide -2- methyl propane sulfonic acid/N tert butyl acrylamide terpolymer.
Acrylic acid, 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide mass ratio be 8~10: 3~5: 3 ~5.
Step 2. in, after 1. terpolymer obtained is cooled to room temperature after step, add other materials.
The present invention has the effect of positive: (1) anti-incrustation corrosion inhibitor of the invention it is without phosphorus, without zinc, it is environmentally friendly, hinder simultaneously Dirty corrosion mitigating effect is excellent.
(2) the scale inhibition ingredient in anti-incrustation corrosion inhibitor of the invention is acrylic acid/2- acrylamide-2-methyl propane sulfonic/N- N-tert-butyl acrylamide terpolymer and hydrolysis of polymaleic anhydride, wherein acrylic acid/2- acrylamide-2-methyl propane sulfonic/ N tert butyl acrylamide terpolymer has fine antiscaling dispersion effect, finds by many experiments, when the polymer phase When being 3000~4000 to molecular weight, antiscaling dispersion effect is best.The molecular weight of polymer by three kinds of monomers proportion, cause The amount and reaction temperature of agent determines.
Hydrolysis of polymaleic anhydride has excellent scale-inhibiting properties, and thermal stability is good, terpolymer and hydrolyzed polymaleic anhydride After acid anhydride compounding, since synergistic effect scale-inhibiting properties greatly enhance.Pass through " GB/T16632-2008 water treatment agent scale-inhibiting properties Measurement tosca method " test compared with similar product, find product of the present invention scale inhibition performance can reach 96% or more, It is better than similar product.
(3) inhibition ingredient in anti-incrustation corrosion inhibitor of the invention is by carboxyethyl thiosuccinic acid, sodium gluconate, methylbenzene And triazole forms, carboxyethyl thiosuccinic acid is a kind of dispersion detergent of superior performance, has good antirust inhibition function Can, there is outstanding chelating dispersibility to metal ions such as calcium, magnesium, iron, copper.Sodium gluconate is that one kind is low in cost, can give birth to Strong, the environmental-friendly corrosion-mitigation scale-inhibition ingredient of object degradability has very strong complexing power to calcium, magnesium, molysite.Methyl benzo three Nitrogen azoles is mainly used as the antirust and inhibition of metal (such as silver, copper, lead, nickel, zinc), and there especially have to copper and copper alloy to be unique and excellent Different inhibition protection effect.It is tested by " the measurement rotary hanging plate method of GB/T 18175-2014 water treatment agent corrosion inhibition ", It was found that product of the present invention all reaches 95% or more to the corrosion inhibition rate of carbon steel, brass, stainless steel, it is superior to similar product.
Specific embodiment
Each component in environment-friendly type anti-incrustation corrosion inhibitor of the invention and its weight relative to the anti-incrustation corrosion inhibitor gross weight Percentage are as follows: hydrolysis of polymaleic anhydride 10%~15%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N- tert-butyl acryloyl Amine terpolymer 14%~20%, ammonium persulfate 0.5%~1%, carboxyethyl thiosuccinic acid 5%~10%, sodium gluconate 5%~ 8%, methyl benzotriazazole 1%~2%, surplus is deionized water.
Acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer is acrylic acid, 2- Three kinds of acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide monomers occur certainly under the action of ammonium persulfate initiator The terpolymer being polymerize by base, the matter of acrylic acid, 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide Amount is than being 8~10: 3~5: 3~5;The dosage of ammonium persulfate and the mass ratio of acrylic acid are 0.5~1: 8~10.
(embodiment 1)
Each component in the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment and its weight hundred relative to the anti-incrustation corrosion inhibitor gross weight Divide ratio are as follows: hydrolysis of polymaleic anhydride 10%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide ternary Copolymer 1 8%, ammonium persulfate 0.5%, carboxyethyl thiosuccinic acid 8%, sodium gluconate 8%, methyl benzotriazazole 1%, surplus For deionized water.
The preparation method of the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment the following steps are included:
1. preparing acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer.
By the 2- acrylamide-2-methyl propane sulfonic of 50kg, the N tert butyl acrylamide of 30kg and 120kg go from Sub- water successively puts into reaction kettle, opens stirring, is warming up to 80 DEG C~90 DEG C (they being 85 DEG C in the present embodiment), after reaching temperature, to The ammonium persulfate aqueous solution and 100kg propylene of 5kg ammonium persulfate and 50kg deionized water composition is added dropwise in reaction kettle simultaneously respectively Acid, time for adding are 3~4 hours, and heat preservation 1~2 hour (being 2 hours in the present embodiment) is added dropwise.
Acrylic acid made from the present embodiment/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide ternary polymerization The molecular weight of object is 3800.
2. sequentially adding 100kg into reaction kettle when the reactor temperature of step 1. is cooled to room temperature and hydrolyzing poly- horse Come acid anhydrides, 80kg carboxyethyl thiosuccinic acid, 80kg sodium gluconate, 10kg methyl benzotriazazole and 375kg deionized water, It stirring 1~2 hour (being 1 hour in the present embodiment), stirs.
3. opening reaction kettle bottom valve, specified container containing will be packed into as required by the medicament of filter bag, measure at Product environment-friendly type anti-incrustation corrosion inhibitor.
(embodiment 2)
Each component in the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment and its weight hundred relative to the anti-incrustation corrosion inhibitor gross weight Divide ratio are as follows: hydrolysis of polymaleic anhydride 15%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide ternary Copolymer 1 4%, ammonium persulfate 0.75%, carboxyethyl thiosuccinic acid 5%, sodium gluconate 5%, methyl benzotriazazole 2%, surplus For deionized water.
The preparation method of the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment the following steps are included:
1. preparing acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer.
By the 2- acrylamide-2-methyl propane sulfonic of 30kg, the N tert butyl acrylamide of 30kg and 120kg go from Sub- water successively puts into reaction kettle, opens stirring, is warming up to 80 DEG C, after reaching temperature, and 7.5kg is added dropwise simultaneously respectively into reaction kettle The ammonium persulfate aqueous solution and 80kg acrylic acid of ammonium persulfate and 75kg deionized water composition, time for adding are 3~4 hours, drop Add Bi Baowen 1.5 hours.
Acrylic acid made from the present embodiment/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide ternary polymerization The molecular weight of object is 3580.
2. sequentially adding 150kg into reaction kettle when the reactor temperature of step 1. is cooled to room temperature and hydrolyzing poly- horse Come acid anhydrides, 50kg carboxyethyl thiosuccinic acid, 50kg sodium gluconate, 20kg methyl benzotriazazole and 387.5kg deionization Water is stirred 2 hours, is stirred.
3. opening reaction kettle bottom valve, specified container containing will be packed into as required by the medicament of filter bag, measure at Product environment-friendly type anti-incrustation corrosion inhibitor.
(embodiment 3)
Each component in the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment and its weight hundred relative to the anti-incrustation corrosion inhibitor gross weight Divide ratio are as follows: hydrolysis of polymaleic anhydride 12.5%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide three Membered copolymer 16%, ammonium persulfate 1%, carboxyethyl thiosuccinic acid 7.5%, sodium gluconate 7%, methyl benzotriazazole 1.5%, Surplus is deionized water.
The preparation method of the environment-friendly type anti-incrustation corrosion inhibitor of the present embodiment the following steps are included:
1. preparing acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer.
By the 2- acrylamide-2-methyl propane sulfonic of 40kg, the N tert butyl acrylamide of 40kg and 120kg go from Sub- water successively puts into reaction kettle, opens stirring, is warming up to 80 DEG C, after reaching temperature, and 10kg is added dropwise simultaneously respectively into reaction kettle The ammonium persulfate aqueous solution and 80kg acrylic acid of ammonium persulfate and 75kg deionized water composition, time for adding are 3~4 hours, drop Add Bi Baowen 1.5 hours.
Acrylic acid made from the present embodiment/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide ternary polymerization The molecular weight of object is 3250.
2. sequentially adding 125kg into reaction kettle when the reactor temperature of step 1. is cooled to room temperature and hydrolyzing poly- horse Come acid anhydrides, 75kg carboxyethyl thiosuccinic acid, 70kg sodium gluconate, 15kg methyl benzotriazazole and 350kg deionized water, Stirring 2 hours, stirs.
3. opening reaction kettle bottom valve, specified container containing will be packed into as required by the medicament of filter bag, measure at Product environment-friendly type anti-incrustation corrosion inhibitor.
(4~embodiment of embodiment 8)
Each component in the environment-friendly type anti-incrustation corrosion inhibitor of 4~embodiment of embodiment 8 and its relative to the anti-incrustation corrosion inhibitor gross weight Weight percent see the table below the terpolymer in 1(table 1 be acrylic acid/2- acrylamide-2-methyl propane sulfonic/tertiary fourth of N- Base acrylamide copolymer).
The component and weight percent (wt%) of 1 anti-incrustation corrosion inhibitor of table
The preparation method is the same as that of Example 1 for the environment-friendly type anti-incrustation corrosion inhibitor of 4~embodiment of embodiment 8.
The anticorrosion-antiscaling property of environment-friendly type anti-incrustation corrosion inhibitor of the invention is detected.
(test example 1)
Water and fresh water press 1:1 as recirculated cooling water moisturizing in the use of Shanghai coke-oven plant, and water analysis is shown in Table 2.
2 Shanghai coke-oven plant moisturizing water analysis table of table
Remarks: calcium hardness, total hardness, total alkalinity are with CaCO3Meter.
It is middle hardness moderate alkalinity water quality that data, which can be seen that system supplement water, from table 2, is needed by user's requirement It is run under 4 times of cycles of concentration, especially the moisturizing half is the middle water of sewage treatment plant, and content of microorganisms is high, and system has knot The various problems such as dirt deposition, burn into biological clay, while District of Shanghai is located in the Changjiang river Taihu Lake basin, institute stringent to environmental requirement The water treatment agent used is necessary for non-phosphate environment-friendly type medicament.
The environment-friendly type anti-incrustation corrosion inhibitor for using the cooling water of the coke-oven plant embodiment of the present invention 1, according to test tube monthly Monitoring data, for carbon steel test tube corrosion rate in 0.02~0.04mm/a, carbon steel test tube adheres to rate in 5~10mcm, is much better than National standard (national standard GB50050-2017 regulation corrosion of carbon steel rate≤0.075mm/a, carbon steel test tube adherency rate≤ 15mcm)。
Operation opened heat exchanger after 24 months, and heat exchanger tube surface-brightening is also corrosion-free both without fouling and Stickydeposit, fills The excellent antiscaling dispersion of bright medicament of the present invention of defending oneself, corrosion inhibition.
(test example 2)
Water is shown in Table 3 as circulating cooling make-up water, water analysis in the coal chemical industry enterprises whole use of the Inner Mongol.
3 Inner Mongol coal chemical industry enterprises water analysis table of table
Remarks: calcium hardness, total hardness, total alkalinity are with CaCO3Meter.
As can be seen from Table 3, system supplement water is high rigidity, high alkalinity water quality, chloride ion, sulfate ion It is very high, have very strong fouling corrosion tendency, while moisturizing all is from middle water, content of microorganisms is high, can aggravate rotten under foundry loam Erosion occurs.
The enterprise uses the environment-friendly type anti-incrustation corrosion inhibitor of the embodiment of the present invention 2, and run 24 months and observe: system is run just Often, and cycles of concentration is stepped up from 2.5 times to 3 times or more, saves considerable operating cost for enterprise.
According to lacing film detection monthly, carbon steel lacing film corrosion rate is in 0.03~0.05mm/a, stainless steel, brass lacing film Corrosion rate≤0.001mm/a, be much better than national standard (national standard GB50050-2017 provide corrosion of carbon steel rate≤ 0.075mm/a, stainless steel, brass rate of corrosion≤0.005mm/a).
(test example 3)
Water is shown in Table 4 as circulating cooling make-up water, water analysis in the whole use of Beijing steam power plant.
4 Beijing steam power plant water analysis table of table
Remarks: calcium hardness, total hardness, total alkalinity are with CaCO3Meter.
As can be seen from Table 4, system supplement water is high calcium hardness, high total alkalinity water quality, has very strong fouling Tendency.
The factory uses the environment-friendly type anti-incrustation corrosion inhibitor of the embodiment of the present invention 3, system normal operation, and cycles of concentration is from 2 times It steps up to 2.5 times or more, coagulator observation, stainless steel coagulator heat exchanger tube surface-brightening, nothing is opened after operation 12 months Fouling and Stickydeposit phenomenon.

Claims (9)

1. a kind of environment-friendly type anti-incrustation corrosion inhibitor, which is characterized in that each component and its weight relative to the anti-incrustation corrosion inhibitor gross weight Measure percentage are as follows: hydrolysis of polymaleic anhydride 10%~15%, acrylic acid/2- acrylamide-2-methyl propane sulfonic/N- tert-butyl propylene Amide terpolymer 14%~20%, ammonium persulfate 0.5%~1%, carboxyethyl thiosuccinic acid 5%~10%, sodium gluconate 5% ~8%, methyl benzotriazazole 1%~2%, surplus is deionized water.
2. environment-friendly type anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that: acrylic acid/2- acrylamide -2- methyl Propane sulfonic acid/N tert butyl acrylamide terpolymer is acrylic acid, 2- acrylamide-2-methyl propane sulfonic, N- tert-butyl third The terpolymer that free radical polymerization obtains occurs under the action of ammonium persulfate initiator for three kinds of monomers of acrylamide, acrylic acid, 2- acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide mass ratio be 8~10: 3~5: 3~5.
3. environment-friendly type anti-incrustation corrosion inhibitor according to claim 2, it is characterised in that: the dosage of ammonium persulfate and acrylic acid Mass ratio is 0.5~1: 8~10.
4. environment-friendly type anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that: acrylic acid/2- acrylamide -2- methyl Propane sulfonic acid/N tert butyl acrylamide terpolymer relative to the anti-incrustation corrosion inhibitor gross weight weight percent be 16%~ 18%。
5. environment-friendly type anti-incrustation corrosion inhibitor according to claim 1, it is characterised in that: carboxyethyl thiosuccinic acid is relative to institute The weight percent for stating anti-incrustation corrosion inhibitor gross weight is 5%~8%.
6. a kind of preparation method of environment-friendly type anti-incrustation corrosion inhibitor as described in claim 1, it is characterised in that the following steps are included:
1. preparing acrylic acid/2- acrylamide-2-methyl propane sulfonic/N tert butyl acrylamide terpolymer;
2. sequentially adding hydrolysis of polymaleic anhydride, carboxyethyl thiosuccinic acid, sodium gluconate, methylbenzene into terpolymer And triazole and balance deionized water, it stirs;
3. filtering, pack.
7. the preparation method of environment-friendly type anti-incrustation corrosion inhibitor according to claim 6, it is characterised in that: step 1. in, by 2- Acrylamide-2-methyl propane sulfonic, N tert butyl acrylamide and portions of de-ionized water successively put into reaction kettle, open stirring, 80 DEG C~90 DEG C, after reaching temperature are warming up to, ammonium persulfate aqueous solution and acrylic acid is added dropwise simultaneously respectively into reaction kettle, is added dropwise Time is 3~4 hours, heat preservation is added dropwise 1~2 hour, obtains acrylic acid/2- acrylamide-2-methyl propane sulfonic/tertiary fourth of N- Base acrylamide copolymer.
8. the preparation method of environment-friendly type anti-incrustation corrosion inhibitor according to claim 7, it is characterised in that: acrylic acid, 2- propylene Amide -2- methyl propane sulfonic acid, N tert butyl acrylamide mass ratio be 8~10: 3~5: 3~5.
9. the preparation method of environment-friendly type anti-incrustation corrosion inhibitor according to claim 7, it is characterised in that: step 2. in, to step Suddenly after 1. terpolymer obtained is cooled to room temperature, other materials are added.
CN201810932737.5A 2018-08-16 2018-08-16 Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof Pending CN109052675A (en)

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CN111533285A (en) * 2020-04-20 2020-08-14 中国神华能源股份有限公司国华电力分公司 Phosphorus-free slow-release scale inhibitor
CN111943368A (en) * 2019-05-14 2020-11-17 科威天使环保科技集团股份有限公司 Grey water dispersant and preparation method thereof
CN112226772A (en) * 2019-07-15 2021-01-15 中国石油化工股份有限公司 Composite corrosion inhibitor and method for inhibiting carbon steel corrosion in Fischer-Tropsch synthesis reaction water by using same
CN113582332A (en) * 2021-06-21 2021-11-02 四川弘业环保科技有限公司 Sewage anaerobic stabilizing agent and preparation method thereof
CN114262071A (en) * 2021-09-18 2022-04-01 自然资源部天津海水淡化与综合利用研究所 Application of carbon steel corrosion inhibitor in reclaimed water heat supply network transmission and distribution
CN117164128A (en) * 2023-11-03 2023-12-05 烟台康恩环保科技有限公司 Organic scale and corrosion inhibitor for high-dissolved-oxygen water quality and preparation method thereof
CN117623512A (en) * 2023-12-28 2024-03-01 山东天庆科技发展有限公司 A kind of scale and corrosion inhibitor with good stability and preparation method thereof

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