CN116854264A - Formula of high-concentration-ratio circulating cooling water phosphate-free water treatment agent - Google Patents
Formula of high-concentration-ratio circulating cooling water phosphate-free water treatment agent Download PDFInfo
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- CN116854264A CN116854264A CN202310656529.8A CN202310656529A CN116854264A CN 116854264 A CN116854264 A CN 116854264A CN 202310656529 A CN202310656529 A CN 202310656529A CN 116854264 A CN116854264 A CN 116854264A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 79
- 239000000498 cooling water Substances 0.000 title claims abstract description 47
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 46
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 claims abstract description 27
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims abstract description 27
- 229920001529 polyepoxysuccinic acid Polymers 0.000 claims abstract description 26
- 239000011592 zinc chloride Substances 0.000 claims abstract description 23
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 23
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims abstract description 21
- 239000001433 sodium tartrate Substances 0.000 claims abstract description 21
- 229960002167 sodium tartrate Drugs 0.000 claims abstract description 21
- 235000011004 sodium tartrates Nutrition 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000000700 radioactive tracer Substances 0.000 claims description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 21
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 14
- 239000012964 benzotriazole Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 9
- KXXXUIKPSVVSAW-UHFFFAOYSA-K pyranine Chemical compound [Na+].[Na+].[Na+].C1=C2C(O)=CC(S([O-])(=O)=O)=C(C=C3)C2=C2C3=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=C1 KXXXUIKPSVVSAW-UHFFFAOYSA-K 0.000 claims description 9
- 238000002390 rotary evaporation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 238000013329 compounding Methods 0.000 abstract description 7
- 238000009472 formulation Methods 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- 238000010668 complexation reaction Methods 0.000 abstract 1
- 239000013022 formulation composition Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 32
- 238000005260 corrosion Methods 0.000 description 32
- 230000005764 inhibitory process Effects 0.000 description 31
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-diisopropylethylamine Substances CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000001506 calcium phosphate Substances 0.000 description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 description 3
- 235000011010 calcium phosphates Nutrition 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- C02F5/105—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 combined with inorganic substances
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The patent relates to the technical field of water treatment agents, in particular to a high-concentration-ratio circulating cooling water phosphorus-free water treatment agent compounding scheme. The formula of the water treatment agent for the high-concentration-ratio circulating cooling water comprises the following substances in parts by weight: 10-50 parts of sodium tartrate; 10-50 parts of polyepoxysuccinic acid; 10-20 parts of maleic acid-acrylic acid copolymer; 0.5-10 parts of zinc chloride; 1-50 parts of water. The application optimizes the formulation composition of the high-concentration-ratio circulating cooling water treatment agent, and improves the effect of the water treatment agent formulation through the complexation dispersion performance, the threshold effect and the good synergistic effect of the polyepoxysuccinic acid and the maleic acid-acrylic acid copolymer.
Description
Technical Field
The application relates to the technical field of water treatment agents, in particular to a high-concentration-ratio circulating cooling water treatment agent.
Background
In an actual industrial circulating cooling water system, medium heat is exchanged mainly through a heat exchanger heat exchange or direct contact heat exchange mode, and in the circulating process of cooling water, as the concentration multiple is increased, the concentration of ions in the water is continuously increased, scaling and corrosion tendency are serious, so that the conditions of low heat transfer efficiency of a pipeline and short service life of equipment are caused. In order to prevent the aggravation of scaling and corrosion, water is often treated to reduce scaling and corrosion phenomena, and a plurality of compounding schemes of water treatment agents are developed at present.
In an actual circulating cooling water system, a medicament with high concentration ratio (concentration ratio is more than or equal to 20) is needed to be used, but the application of the existing medicament under the condition of high concentration ratio is not mature enough. Prior art publication No. CN 201910133328.3: the application provides a special corrosion and scale inhibitor for high-concentration circulating water, which has good performance under the condition of concentration ratio of more than 10, but the water treatment agent contains phosphorus, so that the water eutrophication can be caused by long-term and large-scale use, and the problem of environmental pollution is solved.
In view of the above, the present inventors have found that the conventional circulating water agent having a high concentration ratio has problems of environmental pollution and a large amount to be added.
Disclosure of Invention
The application provides a water treatment agent for circulating cooling water with high concentration ratio, which aims to overcome the defects of the existing circulating water treatment agent with high concentration ratio, such as poor stability, corrosion and scale inhibition and environmental pollution. The application provides a water treatment agent for circulating cooling water with high concentration ratio, which adopts the following technical scheme: the water treatment agent for the high-concentration-ratio circulating cooling water comprises the following substances in parts by weight:
10-50 parts of sodium tartrate;
10-50 parts of polyepoxysuccinic acid;
10-20 parts of maleic acid-acrylic acid copolymer;
0.5-10 parts of zinc chloride;
1-50 parts of water.
By adopting the technical scheme, the scale inhibition performance of the scale and corrosion inhibitor is improved by optimizing the formula composition of the water treatment agent for circulating cooling water with high concentration ratio and by good dispersion performance, threshold effect and synergistic effect among agents of the polyepoxysuccinic acid and the maleic acid-acrylic acid copolymer. The long-chain anions in the water treatment agent can enable scale-forming grains to grow towards the malformation direction, so that the growth and the structure of crystals are inhibited, the deposition of the crystals such as calcium carbonate, calcium phosphate and the like can be effectively prevented in water quality such as high hardness, high alkalinity and the like, the use and addition amount of the water treatment agent is reduced to a certain extent, and meanwhile, the stable corrosion and scale inhibition performance of the water treatment agent under high concentration ratio is maintained;
furthermore, the application inhibits the cathode reaction in the corrosion process by taking zinc ions in zinc chloride as a cathode type corrosion inhibition compound medicament. Thereby further improving the corrosion inhibition effect of the water treatment agent.
Preferably, the water treatment agent for the high-concentration-ratio circulating cooling water comprises the following substances in parts by weight:
40 parts of sodium tartrate;
35 parts of polyepoxysuccinic acid;
15 parts of maleic acid-acrylic acid copolymer;
3 parts of zinc chloride;
1.5 parts of water.
By adopting the technical scheme, the stability, corrosion and scale inhibition performance and effectiveness of the water treatment agent prepared by the application are further improved by further optimizing the components of the water treatment agent for circulating cooling water with high concentration ratio.
Preferably, the water treatment agent for high-concentration-ratio circulating cooling water further comprises 0.5-5 parts by weight of organic matters, wherein the organic matters comprise benzotriazole.
By adopting the technical scheme, the benzotriazole is added into the water treatment agent for compounding, and the benzotriazole and zinc ions cooperate to inhibit metal deposition, so that the corrosion inhibition effect is achieved, and particularly the corrosion inhibition performance of the water treatment agent on brass materials is improved.
Preferably, the copolymer comprises a maleic acid-acrylic acid copolymer.
By adopting the technical scheme, the application combines the dispersion effect of the maleic acid-acrylic acid copolymer and the synergistic effect of polyepoxysuccinic acid to inhibit the growth of crystals, can effectively prevent the deposition of crystals such as calcium carbonate, calcium phosphate and the like in water with high hardness, high alkalinity and the like, and has good scale inhibition effect.
Preferably, the water treatment agent for high-concentration-ratio circulating cooling water further comprises 5-10 parts by weight of fluorescent tracer, wherein the fluorescent tracer is prepared from the following components in percentage by mass: 3.5-5.5 of mixed trisodium 8-hydroxy-1, 3, 6-pyrene trisulfonate and allyl glycidyl ether.
By adopting the technical scheme, the application further optimizes the components in the water treatment agent, and the fluorescent tracer is added, so that the concentration of the agent in the solution can be monitored in real time through fluorescence while scale and corrosion inhibition is realized.
Preferably, the fluorescent tracer is a high-concentration-ratio fluorescent tracer, and the high-concentration-ratio fluorescent tracer is prepared by adopting the following scheme:
dissolving trisodium 8-hydroxy-1, 3, 6-pyrene trisulfonate in methanol solution, uniformly stirring, adding allyl glycidyl ether, stirring, mixing, adjusting pH to 9.5, performing heat preservation reaction, standing, and cooling to room temperature;
collecting the reactant, performing rotary evaporation to obtain rotary evaporation solid, drying and grinding to obtain the high-concentration-ratio modified fluorescent tracer.
By adopting the technical scheme, the pH of the water treatment agent is adjusted, so that the agent is in reasonable reaction conditions, and meanwhile, the agent meets the production and transportation requirements.
In summary, the application has the following beneficial effects:
first, the application optimizes the composition of the water treatment agent for circulating cooling water with high concentration ratio, and improves the scale and corrosion inhibition performance of the water treatment agent through the good dispersion performance, threshold effect and synergistic effect between agents of the maleic acid-acrylic acid copolymer combined with polyepoxysuccinic acid. The long-chain anions in the water treatment agent can enable scale-forming crystals to grow towards the malformation direction, so that the normal growth of the crystals is inhibited, the deposition of the crystals such as calcium carbonate and calcium phosphate can be effectively prevented in water quality such as high hardness and high alkalinity, the use and addition amount of the water treatment agent is reduced, and meanwhile, the stable corrosion and scale inhibition performance of the water treatment agent under high concentration ratio is improved;
and secondly, the zinc ions of the zinc chloride and the benzotriazole are compounded to serve as an anionic corrosion inhibitor, so that the anionic corrosion of the circulating cooling water environment is inhibited, and the corrosion inhibition effect of the water treatment agent for the high-concentration-ratio circulating cooling water is further improved.
Thirdly, the application further optimizes the components in the water treatment agent, and the fluorescent tracer is added to achieve the effect of fluorescent tracing while scale and corrosion inhibition, thereby detecting the concentration of the agent in the circulating water system in real time.
Detailed Description
Preparation example 1: high concentration ratio fluorescent tracer 1:
10g of 8-hydroxy-1, 3, 6-pyrene trisulfonic acid trisodium salt is taken and dissolved in methanol solution, 35g of allyl glycidyl ether and 80g of ammonium persulfate solution with the mass fraction of 0.5% are added after stirring and mixing, the stirring and mixing are continued, 0.1mol/LN is added dropwise, the pH value of the N-diisopropylethylamine solution is regulated to 9.5, the reaction is carried out under the temperature of 80 ℃, and the reaction is kept at rest and cooled to room temperature; the fluorescent tracer 1 with high concentration ratio is prepared.
Preparation example 2: high concentration ratio fluorescent tracer 2:
10g of 8-hydroxy-1, 3, 6-pyrene trisulfonic acid trisodium salt is taken and dissolved in methanol solution, 40g of allyl glycidyl ether and 80g of ammonium persulfate solution with the mass fraction of 0.5% are added after stirring and mixing, the stirring and mixing are continued, 0.1mol/LN is added dropwise, the pH value of the N-diisopropylethylamine solution is regulated to 9.5, the reaction is carried out under the temperature of 80 ℃, and the reaction is kept at rest and cooled to room temperature; and preparing the high-concentration-ratio fluorescent tracer 2.
Preparation example 3: high concentration ratio fluorescent tracer 3: 10g of 8-hydroxy-1, 3, 6-pyrene trisulfonic acid trisodium salt is taken and dissolved in methanol solution, 45g of allyl glycidyl ether and 80g of ammonium persulfate solution with the mass fraction of 0.5% are added after stirring and mixing, 0.1mol/LN is continuously added dropwise, the pH value of the N-diisopropylethylamine solution is regulated to 9.5, the reaction is carried out under the temperature of 80 ℃ and the reaction is kept still and cooled to the room temperature; and preparing the high-concentration-ratio fluorescent tracer 3.
Preparation example 4: high concentration ratio fluorescent tracer 4: 10g of 8-hydroxy-1, 3, 6-pyrene trisulfonic acid trisodium salt is taken and dissolved in methanol solution, 50g of allyl glycidyl ether and 80g of ammonium persulfate solution with the mass fraction of 0.5% are added after stirring and mixing, the stirring and mixing are continued, 0.1mol/LN is added dropwise, the pH value of the N-diisopropylethylamine solution is regulated to 9.5, the reaction is carried out under the temperature of 80 ℃, and the reaction is kept at rest and cooled to room temperature; and preparing the high-concentration-ratio fluorescent tracer 4.
Preparation example 5: high concentration ratio fluorescent tracer 5: 10g of 8-hydroxy-1, 3, 6-pyrene trisulfonic acid trisodium salt is taken and dissolved in methanol solution, 55g of allyl glycidyl ether and 80g of ammonium persulfate solution with the mass fraction of 0.5% are added after stirring and mixing, 0.1mol/LN is continuously added dropwise, the pH value of the N-diisopropylethylamine solution is regulated to 9.5, the reaction is carried out under the temperature of 80 ℃ and the reaction is kept still and cooled to the room temperature; and preparing the high-concentration-ratio fluorescent tracer 5.
Example 1
A water treatment agent for circulating cooling water with high concentration ratio comprises 10kg of sodium tartrate, 10kg of polyepoxysuccinic acid, 10kg of maleic acid-acrylic acid copolymer, 0.5kg of zinc chloride and 30kg of water.
Example 2
A water treatment agent for circulating cooling water with high concentration ratio comprises 30kg of sodium tartrate, 30kg of polyepoxysuccinic acid, 14kg of maleic acid-acrylic acid copolymer, 3kg of zinc chloride and 50kg of water.
Example 3
A water treatment agent for circulating cooling water with high concentration ratio comprises 40kg of sodium tartrate, 40kg of polyepoxysuccinic acid, 16kg of maleic acid-acrylic acid copolymer, 5kg of zinc chloride and 60kg of water.
Example 4
A water treatment agent for circulating cooling water with high concentration ratio comprises 50kg of sodium tartrate, 50kg of polyepoxysuccinic acid, 20kg of maleic acid-acrylic acid copolymer, 10kg of zinc chloride and 65kg of water.
Example 5
A water treatment agent for circulating cooling water with high concentration ratio comprises 10kg of sodium tartrate, 30kg of polyepoxysuccinic acid, 16kg of maleic acid-acrylic acid copolymer, 10kg of zinc chloride and 40kg of water.
Example 6
A water treatment agent for circulating cooling water with high concentration ratio comprises 30kg of sodium tartrate, 10kg of polyepoxysuccinic acid, 20kg of maleic acid-acrylic acid copolymer, 5kg of zinc chloride and 35kg of water.
Example 7
A water treatment agent for circulating cooling water with high concentration ratio comprises 40kg of sodium tartrate, 50kg of polyepoxysuccinic acid, 10kg of maleic acid-acrylic acid copolymer, 3kg of zinc chloride and 50kg of water.
Example 8
A water treatment agent for circulating cooling water with high concentration ratio comprises 50kg of sodium tartrate, 40kg of polyepoxysuccinic acid, 14kg of maleic acid-acrylic acid copolymer, 0.5kg of zinc chloride and 50kg of water.
Example 9
A water treatment agent for circulating cooling water with high concentration ratio comprises 10kg of sodium tartrate, 40kg of polyepoxysuccinic acid, 20kg of maleic acid-acrylic acid copolymer, 3kg of zinc chloride and 55kg of water.
Example 10
A water treatment agent for circulating cooling water with high concentration ratio comprises 30kg of sodium tartrate, 50kg of polyepoxysuccinic acid, 16kg of maleic acid-acrylic acid copolymer, 0.5kg of zinc chloride, 60kg of water, 0.5g of benzotriazole and 5g of fluorescent tracer.
Example 11
A water treatment agent for circulating cooling water with high concentration ratio comprises 40kg of sodium tartrate, 10kg of polyepoxysuccinic acid, 14kg of maleic acid-acrylic acid copolymer, 10kg of zinc chloride and 65kg of water. 1g of benzotriazole and 5g of fluorescent tracer.
Example 12
A water treatment agent for circulating cooling water with high concentration ratio comprises 50kg of sodium tartrate, 30kg of polyepoxysuccinic acid, 10kg of maleic acid-acrylic acid copolymer, 5kg of zinc chloride, 60kg of water, 2g of benzotriazole and 7g of fluorescent tracer.
Example 13
A water treatment agent for circulating cooling water with high concentration ratio comprises 10kg of sodium tartrate, 50kg of polyepoxysuccinic acid, 10kg of maleic acid-acrylic acid copolymer, 5kg of zinc chloride, 40kg of water, 3g of benzotriazole and 7g of fluorescent tracer.
Example 14
A water treatment agent for circulating cooling water with high concentration ratio comprises 30kg of sodium tartrate, 40kg of polyepoxysuccinic acid, 10kg of maleic acid-acrylic acid copolymer, 10kg of zinc chloride, 55kg of water, 4g of benzotriazole and 10g of fluorescent tracer.
Example 15
A water treatment agent for circulating cooling water with high concentration ratio comprises 40kg of sodium tartrate, 30kg of polyepoxysuccinic acid, 20kg of maleic acid-acrylic acid copolymer, 0.5kg of zinc chloride, 50kg of water, 5g of benzotriazole and 10g of fluorescent tracer.
Example 16
A water treatment agent for circulating cooling water with high concentration ratio comprises 50kg of sodium tartrate, 10kg of polyepoxysuccinic acid, 16kg of maleic acid-acrylic acid copolymer, 3kg of zinc chloride, 60kg of water, 5g of benzotriazole and 10g of fluorescent tracer.
Performance test:
the high concentration ratio circulating cooling water prepared in examples 1 to 16 was tested with a water treatment agent, and the specific test method was as follows:
1) Different volumes of steel mill water rho (Ca) 2+ )＝192mg/L，ρ(HCO 3- ) Concentrating by 200mg/L for 20, 25, and 30 times respectively, concentrating in water bath at (80+1) deg.C when water treatment agent dosage is 25mg/L and 30mg/L, controlling solution temperature at about (90+ -2.5) deg.C, keeping constant temperature at (80+ -1) deg.C for 8 hr, taking out, cooling, filtering, and measuring filtrate Ca 2+ The content is as follows.
2) Static calcium carbonate scale inhibition performance test under high ion concentration condition
When the water treatment agent dosage is 350mg/L, ρ (Ca2+) =1000 mg/L, ρ (HCO 3-) =1000 mg/L, (CaCO is used as the water treatment agent) 3 A measured amount of) 500mL of water sample (ph=8.5) was put into a volumetric flask, taken out after the constant temperature of (80±1) °c was maintained for 8 hours, cooled and filtered, and then the filtrate Ca was measured 2+ The content is as follows.
2) Static corrosion test under high ion concentration conditions when the water treatment agent dosage is 350mg/L, ρ (Ca2+) =1000 mg/L, ρ (HCO 3-) =1000 mg/L, (all CaCO 3 Meter) ph=8.5, reaction temperature (40±1) °c, reaction time of 72 hours by rotary hanging piece corrosion method, hanging piece material of 20% # Carbon steel.
Table 1 performance test table
From the data in table 1, the technical compound scheme optimizes the composition of the water treatment agent for the circulating cooling water with high concentration ratio, reduces the use amount of the water treatment agent and improves the stable corrosion and scale inhibition performance of the water treatment agent under the high concentration ratio.
By combining examples 1-16, the compound scheme has good scale and corrosion inhibition performance, and the scale inhibition performance and corrosion inhibition performance are stable under the water quality condition of high ion concentration.
In combination with examples 10-16, the addition of benzotriazole in the compounding scheme does not negatively affect the scale inhibition performance of the compounding scheme.
In combination with examples 10-16, the addition of different amounts of fluorescent tracers to the formulation did not negatively affect the scale and corrosion inhibition effect of the formulation.
By combining examples 1-16, the compound scheme has certain application effects on high concentration ratio and high ion concentration water quality conditions, and has good scale inhibition performance and corrosion inhibition performance.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
From the data in table 1, the technical compound scheme optimizes the composition of the water treatment agent for the circulating cooling water with high concentration ratio, reduces the use amount of the water treatment agent and improves the stable corrosion and scale inhibition performance of the water treatment agent under the high concentration ratio.
By combining examples 1-16, the compound scheme has good scale and corrosion inhibition performance, and the scale inhibition performance and corrosion inhibition performance are stable under the water quality condition of high ion concentration.
In combination with examples 10-16, the addition of benzotriazole in the compounding scheme does not negatively affect the scale inhibition performance of the compounding scheme.
In combination with examples 10-16, the addition of different amounts of fluorescent tracers to the formulation did not negatively affect the scale and corrosion inhibition effect of the formulation.
By combining examples 1-16, the compound scheme has certain application effects on high concentration ratio and high ion concentration water quality conditions, and has good scale inhibition performance and corrosion inhibition performance.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (6)
1. A water treatment agent for circulating cooling water with high concentration ratio is characterized in that: comprises the following substances in parts by weight:
10-50 parts of sodium tartrate;
10-50 parts of polyepoxysuccinic acid;
10-20 parts of maleic acid-acrylic acid copolymer;
0.5-10 parts of zinc chloride;
1-50 parts of water.
2. The water treatment agent for high-concentration-ratio circulating cooling water according to claim 1, wherein: comprises the following substances in parts by weight:
40 parts of sodium tartrate;
35 parts of polyepoxysuccinic acid;
15 parts of maleic acid-acrylic acid copolymer;
3 parts of zinc chloride;
1.5 parts of water.
3. The water treatment agent for high-concentration-ratio circulating cooling water according to claim 1, wherein: the water treatment agent for the high-concentration-ratio circulating cooling water also comprises 0.5-5 parts by weight of organic matters, wherein the organic matters comprise benzotriazole.
4. The water treatment agent for high-concentration-ratio circulating cooling water according to claim 1, wherein: the water treatment agent for the high-concentration-ratio circulating cooling water also comprises 5-10 parts by mass of fluorescent tracer, wherein the mass ratio of the fluorescent tracer is 1: 3.5-5.5 of mixed trisodium 8-hydroxy-1, 3, 6-pyrene trisulfonate and allyl glycidyl ether.
5. The water treatment agent for high-concentration-ratio circulating cooling water according to claim 5, wherein the mixture is a high-concentration-ratio modified fluorescent tracer, and the high-concentration-ratio modified fluorescent tracer is prepared by the following scheme:
dissolving trisodium 8-hydroxy-1, 3, 6-pyrene trisulfonate in methanol solution, uniformly stirring, adding allyl glycidyl ether, stirring, mixing, adjusting pH to 9.5, performing heat preservation reaction, standing, and cooling to room temperature;
collecting the reactant, performing rotary evaporation to obtain rotary evaporation solid, drying and grinding to obtain the high-concentration-ratio modified fluorescent tracer.
6. The high-concentration-ratio circulating cooling water treatment agent according to claim 1, wherein the polyepoxysuccinic acid and the maleic acid-acrylic acid copolymer are phosphorus-free water treatment agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310656529.8A CN116854264A (en) | 2023-06-05 | 2023-06-05 | Formula of high-concentration-ratio circulating cooling water phosphate-free water treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310656529.8A CN116854264A (en) | 2023-06-05 | 2023-06-05 | Formula of high-concentration-ratio circulating cooling water phosphate-free water treatment agent |
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| Publication Number | Publication Date |
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| CN116854264A true CN116854264A (en) | 2023-10-10 |
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|---|---|---|---|
| CN202310656529.8A Pending CN116854264A (en) | 2023-06-05 | 2023-06-05 | Formula of high-concentration-ratio circulating cooling water phosphate-free water treatment agent |
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| Country | Link |
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| CN (1) | CN116854264A (en) |
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2023
- 2023-06-05 CN CN202310656529.8A patent/CN116854264A/en active Pending
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