CN108017763A - Polyethers ester compounds and preparation method and corrosion-mitigation scale-inhibition combination medicament and preparation method - Google Patents
Polyethers ester compounds and preparation method and corrosion-mitigation scale-inhibition combination medicament and preparation method Download PDFInfo
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- CN108017763A CN108017763A CN201711247451.5A CN201711247451A CN108017763A CN 108017763 A CN108017763 A CN 108017763A CN 201711247451 A CN201711247451 A CN 201711247451A CN 108017763 A CN108017763 A CN 108017763A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2615—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen the other compounds containing carboxylic acid, ester or anhydride groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
- C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
- C08G65/3324—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof cyclic
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of polyethers ester compounds and preparation method and using such a compound as corrosion-mitigation scale-inhibition combination medicament of main component and preparation method thereof.Beneficial effects of the present invention：Polyethers ester compounds have unexpected anticorrosion-antiscaling effect, and the corrosion-mitigation scale-inhibition combination medicament comprising the novel polyether ester compounds is macromolecular organic inhibitor, has scale-inhibiting properties concurrently.The compound contains carboxylated hydrophilic segment and alkyl hydrophobic segment, is easy to form one layer of adsorbed film in metal surface, water-wet side is adsorbed in metal surface, and hydrophobic side is scattered in the ion that can be hindered in waste water in water（Cl‑, SO4 2‑）Corrosion metallic matrix, is a kind of new corrosion inhibiting and descaling agent with the effect of chelating calcium and magnesium ion in addition because it contains substantial amounts of carboxylic group.It is added in waste water, for recirculated cooling water zero blowdown, not only protect the circulatory system from sewage corrosion and scaling, reuse sewage, but also the microorganism in water quality can make sewage reach the effect of preliminary treatment during recycling.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of polyethers ester compounds and preparation method and corrosion-mitigation scale-inhibition
Combination medicament and preparation method.
Background technology
Enterprise's sewage generally has the characteristics that organic concentration is high, colourity is high, hardness is high, chlorion is high, and containing big
Measure difficult degradation and more complicated to the virose material of microorganism, water-quality constituents.
Traditional biological facture（Such as Aerobic Process for Treatment, Anaerobic Treatment）It is extremely difficult to expected treatment effect.Conventional thing
Logos, chemical method also are difficult to reach water outlet requirement.The complexity of sewage disposal and high consumption, the inefficiencies of conventional treatment process, are
Cause current enterprise sewage to be difficult to handle and be not easy the most immediate cause of qualified discharge, and those skilled in the art need to solve
Main problem.
Therefore, processing in sewage is entangled with it, not as making the best use of everything, in addition opens up new application.
The content of the invention
It is an object of the invention to realize zero blowdown truly, there is provided a kind of technique is simple, operating cost is low, just
In the polyethers ester compounds and preparation method and corrosion-mitigation scale-inhibition combination medicament and preparation method of popularization.
To achieve the above object, concrete technical scheme of the invention is as follows：
A kind of polyethers ester compounds, its chemical structural formula are：
The present invention provides a kind of preparation method of above-mentioned polyethers ester compounds, including it is as follows：
1) hydroxyethyl methacrylate is raw material, under the conditions of low temperature acid with reacting ethylene oxide, until infrared spectrum
910cm-1The wave crest of epoxide group disappears, and obtains the first reaction intermediate, and chemical reaction is as follows：
2）To step 1）In add succinic anhydride in obtained the first reaction intermediate, under medium temperature condition, reaction certain time is
Can obtain polyetherester monomer, 1200 in infrared spectrum at ether group peak occur；
3）To step 2）In obtained polyetherester monomer, carry out thermal-initiated polymerization with acrylic acid, reaction is certain
Time obtains the polyethers ester compounds for the base containing carboxylated hydrophilic that molecular weight is 20000-30000.
Preferably, step 1）In, carried out under acidic catalysis conditions, with reaction do liquid phase infrared until 910cm-1
The wave crest of epoxide group disappears；
Preferably, step 1）In the first reaction intermediate carry out carboxylation reaction, succinic anhydride is added in acetone solvent, in
Reaction certain time obtains polyetherester monomer under the conditions of temperature；
The medium temperature condition is 60-70 DEG C, is preferably carried out at 65 DEG C；
When the reaction time is 1.5-2.5 small, when the preferable reaction time is 2 small；
1200cm in the infrared spectrum-1Locate the appearance at ether group peak, illustrate that reaction obtains polyetherester monomer；
Preferably, step 2）In obtained polyetherester monomer carry out polymerisation with acrylic acid；N first2Deoxygenation 20-30min, so
After add ammonium persulfate initiator；
The polymeric reaction condition be reacted at 75-85 DEG C 2-3 it is small when, preferable reaction condition is that temperature is 80 DEG C, during reaction
Between for 2.5 it is small when；
Present invention also offers a kind of corrosion-mitigation scale-inhibition combination medicament for including above-mentioned polyethers ester compounds.
Preferably, the constituent of the corrosion-mitigation scale-inhibition combination medicament is：The above-mentioned polyethers ester compounds of 15%-20%,
The chelating agent of 10%-15%, the dirt dispersion agent of 5%-10%, the flocculant of 2%-5%, 0.5% surfactant.
The chelating agent is ethylenediamine tetra-acetic acid, diethylene triamine pentamethylene phosphonic, diethyl pentetic acid or second two
Two or more in four methylenephosphonic acid of amine；
The dirt dispersion agent is one or both of poly-aspartate, Sodium Polyacrylate, hydrolysis of polymaleic anhydride；
The flocculant is one or both of chitosan or tannin.
The surfactant is one or both of fatty alcohol polyoxyethylene ether or sorbitan ester.
Present invention also offers a kind of preparation method of above-mentioned corrosion-mitigation scale-inhibition combination medicament, including it is as follows：
The chelating agent dissolving mixing of above-mentioned the polyethers ester compounds and 10%-15% of 15%-20%, then adds the resistance of 5%-10%
The residual components such as dirty dispersant, the flocculant of 2%-5% and surfactant, being slowly stirred is uniformly mixed medicament；
Special agent is added in the circulatory system together with sewage in the ratio of 100-200ppm.
Preferably, changed to avoid suspended matter in circulation zero blowdown operational process, grain slag too high levels from influencing system
Thermal effect, can install other filter in circulation, carry out the filtering of a certain amount of recirculated water, keep the steady of water quality indices
It is fixed, the impurity for filtering retention is handled together with other solid wastes.
In conclusion above-mentioned corrosion-mitigation scale-inhibition combination medicament is macromolecular organic inhibitor, scale-inhibiting properties are had concurrently, it contains carboxylic
Base hydrophilic segment and alkyl hydrophobic segment, are easy to form one layer of adsorbed film in metal surface, water-wet side is adsorbed in metal surface, dredged
Water end (W.E.) is scattered in the ion that can be hindered in waste water in water（Cl-, SO4 2-）Corrosion metallic matrix, in addition because it contains substantial amounts of carboxyl
Group, is a kind of new corrosion inhibiting and descaling agent with the effect of chelating calcium and magnesium ion.Above-mentioned corrosion-mitigation scale-inhibition combination medicament adds
Enter and be used for recirculated cooling water zero blowdown in waste water, not only protect the circulatory system from sewage corrosion and scaling, make sewage sharp again
With, and the microorganism in water quality can make sewage reach the effect of preliminary treatment during recycling.
Beneficial effects of the present invention：It can enter circulation the invention discloses a kind of sewage and do the side that cooling water uses
Method, and patent of the present invention also discloses that a kind of zero blowdown novel corrosion-retarding antisludging agent, and waste water is avoided to equipment after adding medicament
Corrosion and scaling, extend the service life of pipe-line equipment, and some microorganisms can reach preliminary place during recirculated water use
The effect of waste water is managed, the medicine that flocculation is introduced into medicament can be suspended material, colloidal substance, larger molecular organics in sewage
Deng insoluble matter flocculating setting, so as to play the effect to purify water.Compared with prior art, corrosion inhibiting and descaling agent group of the present invention is utilized
Compound processing enterprise sewage, is not only able to realize zero blowdown truly, and technique is simple, invests small, operating cost
It is low, easy to promoting.
Embodiment
The present invention provides a kind of polyethers ester compounds, its chemical structural formula is：
The present invention provides a kind of preparation method of above-mentioned polyethers ester compounds, including it is as follows：
1) hydroxyethyl methacrylate is raw material, under the conditions of low temperature acid with reacting ethylene oxide, until infrared spectrum
910cm-1The wave crest of epoxide group disappears, and obtains the first reaction intermediate.
2) to step 1）In add succinic anhydride in obtained the first reaction intermediate, under medium temperature condition, reaction certain time is
It can obtain polyetherester monomer, 1200cm in infrared spectrum-1Locate ether group peak to occur.
3）To step 2）In obtained polyetherester monomer, carry out thermal-initiated polymerization with acrylic acid, reaction is certain
Time obtains the polyethers ester compounds for the base containing carboxylated hydrophilic that molecular weight is 20000-30000.
Preferably, step 1）In, carried out under acidic catalysis conditions, with reaction do liquid phase infrared until 910cm-1
The wave crest of epoxide group disappears；
Preferably, step 2）In the first reaction intermediate carry out carboxylation reaction, maleic anhydride is added in acetone solvent, in
Reaction certain time obtains polyetherester monomer under the conditions of temperature；
The medium temperature condition is 60-70 DEG C, is preferably carried out at 65 DEG C；
When the reaction time is 1.5-2.5 small, when the preferable reaction time is 2 small；
1200cm in the infrared spectrum-1Locate the appearance at ether group peak, illustrate that reaction obtains polyetherester monomer；
Preferably, step 2）In obtained polyetherester monomer carry out polymerisation with acrylic acid；N first2Deoxygenation 20-30min, so
After add ammonium persulfate initiator；
The polymeric reaction condition be reacted at 75-85 DEG C 2-3 it is small when, preferable reaction condition is that temperature is 80 DEG C, during reaction
Between for 2.5 it is small when；
Present invention also offers a kind of corrosion-mitigation scale-inhibition combination medicament for including above-mentioned polyethers ester compounds.
Preferably, the constituent of the corrosion-mitigation scale-inhibition combination medicament is：The above-mentioned polyethers ester compounds of 15%-20%,
The chelating agent of 10%-15%, the dirt dispersion agent of 5%-10%, the flocculant of 2%-5%, surfactant etc..
The chelating agent is ethylenediamine tetra-acetic acid, diethylene triamine pentamethylene phosphonic, diethyl pentetic acid or second two
Two or more in four methylenephosphonic acid of amine；
The dirt dispersion agent is one or both of poly-aspartate, Sodium Polyacrylate, hydrolysis of polymaleic anhydride；
The flocculant is one or both of chitosan or tannin.The surfactant is aliphatic alcohol polyethenoxy
One or both of ether or sorbitan ester.
The surfactant is one or both of fatty alcohol polyoxyethylene ether or sorbitan ester.
Present invention also offers a kind of preparation method of above-mentioned corrosion-mitigation scale-inhibition combination medicament, including it is as follows：
The chelating agent dissolving mixing of above-mentioned the polyethers ester compounds and 10%-15% of 15%-20%, then adds the scale inhibition of 5%-10%
The residual components such as dispersant, the flocculant of 2%-5% and surfactant, being slowly stirred is uniformly mixed medicament；
Special agent is added in the circulatory system together with sewage in the ratio of 100-200ppm.
Technical scheme is clearly and completely described below in conjunction with the specific embodiment of the invention, it is clear that
Described embodiment is part of the embodiment of the present invention, instead of all the embodiments, every using the present invention similar
Structure and change, within the scope of the present invention.
The compounds of this invention has scale-inhibiting properties concurrently for macromolecular organic inhibitor, it contains carboxylated hydrophilic segment dredges with alkyl
Water segment, is easy to form one layer of adsorbed film in metal surface.Water-wet side absorption is scattered in waste water in metal surface, hydrophobic side can
Hinder the ion in water（Cl-, SO42-）Corrosion metallic matrix.Since the compounds of this invention contains substantial amounts of carboxylic group and has concurrently
Play the role of chelating calcium and magnesium ion, be a kind of new corrosion inhibiting and descaling agent.The compounds of this invention scale inhibition performance is better than other after tested
Organic matter（Calcium carbonate scale inhibition performance is tested（The measure tosca method of GB/T16632-2008 water treatment agent scale-inhibiting properties）
As a result such as following table）, it is excellent as the corrosion mitigating effect of the corrosion-mitigation scale-inhibition composition of main component using the compounds of this invention（See implementation case
Example）.
Embodiment：
Sewage zero blowdown corrosion inhibiting and descaling agent composition, its constituent are：The compounds of this invention of 15%-20%, the chela of 10%-15%
Mixture, the dirt dispersion agent of 5%-10%, the flocculant of 2%-5%, surfactant etc..
The compounds of this invention is polyethers ester compounds；
The chelating agent is ethylenediamine tetra-acetic acid, diethylene triamine pentamethylene phosphonic, diethyl pentetic acid or ethylenediamine
Two or more in four methylenephosphonic acids；
The dirt dispersion agent is one or both of poly-aspartate, Sodium Polyacrylate, hydrolysis of polymaleic anhydride；
The flocculant is one or both of chitosan or tannin；
The surfactant is one or both of fatty alcohol polyoxyethylene ether or sorbitan ester.
Embodiment 1
Recirculated cooling water is done in the pharmacy sewage reuse of Shandong chemical plant, is added corrosion inhibiting and descaling agent composition of the present invention in system, is pressed
Proportioning mixes below：Polyethers ester compounds 20%, diethylene triamine pentamethylene phosphonic 10%, diethyl pentetic acid 5%,
Poly-aspartate 7.5%, chitosan 3%, fatty alcohol polyoxyethylene ether 0.5%, water surplus.
249.9 mg/L of chlorion in the unit sewage, 2.0 mmol/L of basicity, 3.0 mmol/L of hardness, calcium ion
40.08 mg/L, magnesium ion 12.25 mg/L, total 2.66 mg/L of iron, 26.3 mg/L of total phosphorus, sulfate radical 979.53 mg/L, COD
4802 mg/L, NH3127.8 mg/L of-N, water quality is particularly poor, and wastewater treatment expense is also higher.Into after zero blowdown system, if
Standby burn into dirt deposition is serious, carries out within general 20 days or so a high pressure water washing job, and or so half a year replaces pipeline, adds
The corrosion inhibiting and descaling agent composition of the present invention of 150 PPM then makes equipment stable operation more than 180 days, and rate of corrosion is reduced to 0.1126
mm/a.In addition, the impurity after thickening filtration is handled together with other solid wastes, production cost is set substantially to reduce.
Embodiment 2
Recirculated cooling water is done in the fermentation waste water reuse of Shandong chemical plant, is added corrosion inhibiting and descaling agent composition of the present invention in system, is pressed
Proportioning mixes below：Polyethers ester compounds 15%, diethylene triamine pentamethylene phosphonic 10%, ethylene diamine tetra methylene phosphonic acid 5%,
Poly-aspartate 5%, Sodium Polyacrylate 5%, chitosan 3%, fatty alcohol polyoxyethylene ether 0.5%, water surplus.
649.8 mg/L of chlorion in the unit pharmacy waste water, 2.4 mmol/L of basicity, 8.0 mmol/L of hardness, calcium ion
96.03 mg/L, magnesium ion 38.48 mg/L, total 11.08 mg/L of iron, 14.36 mg/L of total phosphorus, 1271.84 mg/L of sulfate radical,
COD 3355.2 mg/L, NH3434.44 mg/L of-N, water quality is particularly poor, and wastewater treatment expense is also higher.Into zero blowdown system
After system, half a year seriously needed to change to 1 year corrosive pipeline, and pipe surface deposition 1 ~ 2cm dirts.Add the present invention of 180 PPM
Corrosion inhibiting and descaling agent composition then makes equipment corrosion rate be reduced to 0.1212 mm/a, opening conduits after running 1 year, and pipe surface is clean
Net smooth no dirt.After water quality is concentrated, filter filters out other insoluble impurity such as flocculate, without taking for processing waste water
With greatly reducing entreprise cost.
Embodiment 3
Shandong steam power plant foaming agent washing waste water recycling does recirculated cooling water, and corrosion inhibiting and descaling agent combination of the present invention is added in system
Thing, mixes according to the following ratio：Polyethers ester compounds 15%, diethylene triamine pentamethylene phosphonic 5%, ethylene diamine tetra methylene phosphonic acid
5%th, poly-aspartate 3%, Sodium Polyacrylate 2.5%, tannin 2%, fatty alcohol polyoxyethylene ether 0.5%, water surplus.
262.4 mg/L of the unit workshop sewage chlorion, basicity 3.3 mmol/L, hardness 5.2mmol/L, calcium ion
54.03 mg/L, magnesium ion 29.82 mg/L, total 0.12 mg/L of iron, total phosphorus 0.532mg/L, sulfate radical 9.88 mg/L, COD
242mg/L, NH3- N 409.3mg/L, water quality is particularly poor, and wastewater treatment expense is also higher.Into after zero blowdown system, tubular type is changed
Hot device dirt deposition is serious, needs within 15 days to shut down cleaning once, adding the corrosion inhibiting and descaling agent composition of the present invention of 100 PPM then makes
Equipment stable operation more than 365 days, rate of corrosion is reduced to 0.0903mm/a, is not required to worry equipment corrosion, fouling.Waste water is through overrich
Flocculate is had after contracting, easy scale forming matter is flocculated, and filters out by sedimentation basin or filter and locates together with other solid wastes
Reason.The program not only solves corrosive pipeline problem, and medicament expense is significantly lower than wastewater treatment expense, is saved for enterprise
Save substantial contribution.
The specific embodiment of the present invention is not construed as limiting the invention, every similar structure using the present invention and change
Change, within the scope of the present invention.
Claims (10)
1. a kind of novel polyether ester compounds, its chemical structural formula are：
。
A kind of 2. novel polyether ester compounds as claimed in claim 1, it is characterised in that：Its molecular weight is 20000-30000.
3. the preparation method of novel polyether ester compounds described in a kind of claim 1, including：
1) hydroxyethyl methacrylate is raw material, under the conditions of low temperature acid with reacting ethylene oxide, until infrared spectrum 910cm-1The wave crest of epoxide group disappears, and obtains the first reaction intermediate；
2）To step 1）In add succinic anhydride in obtained the first reaction intermediate, under medium temperature condition, reaction certain time is
It can obtain polyetherester monomer, 1200cm in infrared spectrum-1Locate ether group peak to occur；
3）To step 2）In obtained polyetherester monomer, carry out thermal-initiated polymerization with acrylic acid, reaction certain time obtains molecule
Measure the polyethers ester compounds of the base containing carboxylated hydrophilic for 20000-30000.
4. according to the preparation method described in claim 3, it is characterised in that step 1）In, carried out under acidic catalysis conditions,
With reaction do liquid phase infrared until 910cm-1The wave crest of epoxide group disappears；
Step 1）In the first reaction intermediate carry out carboxylation reaction, succinic anhydride is added in acetone solvent, in medium temperature condition
Lower reaction certain time will obtain polyetherester monomer；
The medium temperature condition is 60-70 DEG C, is preferably carried out at 65 DEG C；
When the reaction time is 1.5-2.5 small, when the preferable reaction time is 2 small；
1200cm in the infrared spectrum-1Locate the appearance at ether group peak, illustrate that reaction obtains polyetherester monomer.
5. according to the preparation method described in claim 3, it is characterised in that step 2）In obtained polyetherester monomer and propylene
Acid carries out polymerisation；N first2Deoxygenation 20-30min, then adds ammonium persulfate initiator；
The polymeric reaction condition be reacted at 75-85 DEG C 2-3 it is small when, preferable reaction condition is that temperature is 80 DEG C, during reaction
Between for 2.5 it is small when.
6. a kind of corrosion-mitigation scale-inhibition combination medicament, polyethers ester compounds, 10%-15% described in the claim 1 comprising 15%-20%
Chelating agent, the dirt dispersion agent of 5%-10%, the flocculant of 2%-5%, 0.5% surfactant.
7. corrosion-mitigation scale-inhibition combination medicament as claimed in claim 6, it is characterised in that the chelating agent for ethylenediamine tetra-acetic acid,
Two or more in diethylene triamine pentamethylene phosphonic, diethyl pentetic acid or ethylene diamine tetra methylene phosphonic acid.
8. corrosion-mitigation scale-inhibition combination medicament as claimed in claim 6, it is characterised in that the dirt dispersion agent is poly- asparagus fern ammonia
One or both of acid, Sodium Polyacrylate, hydrolysis of polymaleic anhydride.
9. corrosion-mitigation scale-inhibition combination medicament as claimed in claim 6, it is characterised in that the flocculant is chitosan or tannin
One or both of；The surfactant is fatty alcohol polyoxyethylene ether or one kind in sorbitan ester or two
Kind.
10. the preparation method of corrosion-mitigation scale-inhibition combination medicament described in a kind of claim 6, including：
The chelating agent dissolving mixing of above-mentioned the polyethers ester compounds and 10%-15% of 15%-20%, then adds the scale inhibition of 5%-10%
Dispersant, the flocculant of 2%-5% and 0.5% surfactant residual components, being slowly stirred is uniformly mixed medicament；
Special agent is added in the circulatory system together with sewage in the ratio of 100-200ppm.
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| CN110183384A (en) * | 2019-07-05 | 2019-08-30 | 枣庄学院 | Application in benzimidazoles compound, polymer and preparation method and its water process |
| CN111592121A (en) * | 2020-05-13 | 2020-08-28 | 欣格瑞（山东）环境科技有限公司 | Acrylic copolymer, novel environment-friendly corrosion and scale inhibitor composition and application |
| CN114262896A (en) * | 2021-10-11 | 2022-04-01 | 安徽工业大学 | Non-ionic polymer carboxylate corrosion inhibitor and preparation method thereof |
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| CN114262896A (en) * | 2021-10-11 | 2022-04-01 | 安徽工业大学 | Non-ionic polymer carboxylate corrosion inhibitor and preparation method thereof |
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| CN108017763B (en) | 2020-08-28 |
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Denomination of invention: Corrosion and scale inhibition combined agent and its preparation method Effective date of registration: 20210909 Granted publication date: 20200828 Pledgee: Shandong Jiaxiang Rural Commercial Bank Co., Ltd Pledgor: SCIENGREEN (SHANDONG) ENVIRONMENT TECHNOLOGY Co.,Ltd. Registration number: Y2021980009118 |