CN117843159A - Corrosion and scale inhibitor containing heterocyclic compound - Google Patents
Corrosion and scale inhibitor containing heterocyclic compound Download PDFInfo
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- CN117843159A CN117843159A CN202410115975.2A CN202410115975A CN117843159A CN 117843159 A CN117843159 A CN 117843159A CN 202410115975 A CN202410115975 A CN 202410115975A CN 117843159 A CN117843159 A CN 117843159A
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- corrosion
- scale
- heterocyclic compound
- scale inhibitor
- imidazoline derivative
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- 238000005260 corrosion Methods 0.000 title claims abstract description 61
- 230000007797 corrosion Effects 0.000 title claims abstract description 61
- 239000002455 scale inhibitor Substances 0.000 title claims abstract description 33
- 150000002391 heterocyclic compounds Chemical class 0.000 title claims abstract description 32
- 150000002462 imidazolines Chemical class 0.000 claims abstract description 17
- 239000003112 inhibitor Substances 0.000 claims abstract description 16
- 229920000805 Polyaspartic acid Polymers 0.000 claims abstract description 8
- 108010064470 polyaspartate Proteins 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- -1 DTPMPA Chemical compound 0.000 claims description 2
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 2
- STNSYZSNIYTNMI-UHFFFAOYSA-N azane;[2-[bis(phosphonomethyl)amino]ethyl-(phosphonomethyl)amino]methylphosphonic acid Chemical compound N.OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O STNSYZSNIYTNMI-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 125000000542 sulfonic acid group Chemical group 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- SHSZDDUSTMLRBZ-UHFFFAOYSA-N 18-sulfooctadecanoic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCCCS(O)(=O)=O SHSZDDUSTMLRBZ-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UMWMJMJPVRELFU-UHFFFAOYSA-N nitrosulfamic acid Chemical group OS(=O)(=O)N[N+]([O-])=O UMWMJMJPVRELFU-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 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 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to the technical field of corrosion and scale inhibition, in particular to a corrosion and scale inhibitor containing a heterocyclic compound, wherein the heterocyclic compound is an imidazoline derivative grafted modified polyaspartic acid polymer, and the structural formula of the imidazoline derivative is as follows:r is C with or without substituent 1 ‑C 30 The heterocyclic compound and the organophosphorus scale and corrosion inhibitor have obvious synergistic effect when being matched for use, and have better scale and corrosion inhibition effect and can inhibit corrosion.
Description
Technical Field
The invention relates to the technical field of corrosion and scale inhibition, in particular to a corrosion and scale inhibitor containing heterocyclic compounds.
Background
Along with the rapid development of industry, the industrial water consumption, especially industrial circulating water, is increased year by year, in actual industrial production, along with the long-term operation of circulating equipment, problems such as pipeline corrosion and scaling and the like often occur in a circulating water system, so that the heat exchange efficiency of the equipment is low, the service life of the equipment is greatly shortened, the production capacity is reduced, the industrial cost is improved, and the problems are solved. The most common method in industry is to add scale and corrosion inhibitor into the circulating cooling water system to achieve the purpose of scale and corrosion inhibition. As early as the middle of the last century, natural high molecular polymers such as lignin and starch are used as scale inhibitors in industry, but the scale inhibitors are poor in scale inhibition performance and excessive in dosage and gradually replaced by newly-appearing synthetic scale inhibitors, but the existing single scale inhibitors are often unsatisfactory in scale inhibition performance, and are difficult to meet the use requirements.
Disclosure of Invention
The invention aims to: aiming at the technical problems, the invention provides a corrosion and scale inhibitor containing heterocyclic compounds.
The technical scheme adopted is as follows:
a corrosion and scale inhibitor containing heterocyclic compound, wherein the heterocyclic compound is an imidazoline derivative grafted modified polyaspartic acid polymer;
the structural formula of the imidazoline derivative is as follows:
r is C with or without substituent 1 -C 30 A hydrocarbon group;
the substituent is one or more of hydroxyl, carboxyl, alkoxy, nitro, amino, sulfonic acid group, aldehyde group and cyano.
Further, R is C 8 -C 20 Alkyl or C 8 -C 20 Alkenyl groups;
the C is 8 -C 20 Alkyl or C 8 -C 20 Alkenyl groups are substituted or unsubstituted with sulfonic acid groups.
Further, R is a sulfonic acid group substituted C 8 -C 20 An alkyl group.
Further, the preparation method of the heterocyclic compound comprises the following steps:
mixing RCOOH and diethylenetriamine uniformly, heating to 150-170 ℃ under the protection of nitrogen, carrying out heat preservation reaction for 2-4h, heating to 200-220 ℃, carrying out heat preservation reaction for 2-4h, stopping heating, discharging water generated in the reaction process in time, naturally cooling to room temperature to obtain an imidazoline derivative, adding polysuccinimide and the imidazoline derivative into water, heating to 40-60 ℃, carrying out ultrasonic vibration to uniformly disperse, regulating the pH of the solution to 9-10 by using sodium hydroxide solution, carrying out reaction for 24-36h, regulating the pH of the solution to 6-7 by using hydrochloric acid, carrying out sedimentation by using absolute ethyl alcohol, standing for 12-24h, filtering, washing the obtained solid with absolute ethyl alcohol for multiple times, and drying.
Further, the molar ratio of RCOOH to diethylenetriamine is 1:1-1.3.
Further, the weight ratio of polysuccinimide to imidazoline derivative is 1:0.05-0.1.
Further, the organic phosphorus scale and corrosion inhibitor is also included.
Further, the organophosphorus scale and corrosion inhibitor comprises any one or a combination of a plurality of ATMP, HEDP, DTPMPA, EDTMPS, HPAA.
Further, the weight ratio of the heterocyclic compound to the organophosphorus scale and corrosion inhibitor is 1:0.5-1.
Further, the usage amount of the corrosion and scale inhibitor is 10-50ppm.
The invention has the beneficial effects that:
the invention provides a corrosion and scale inhibitor containing heterocyclic compounds, the heterocyclic compounds are specifically imidazoline derivatives grafted and modified polyaspartic acid polymers, the imidazoline derivatives contain nitrogen-containing five-membered heterocycle, long-chain alkyl and sulfonic acid groups, atoms (N, O, S and the like) with lone pair electrons in the nitrogen-containing five-membered heterocycle are easy to form coordination bonds with metal atoms, so that chemical adsorption is carried out to slow down corrosion, the sulfonic acid groups as hydrophilic groups can also increase the solubility of the compounds, further improve the corrosion inhibition performance, long-chain alkyl groups as hydrophobic branched chains can form hydrophobic films, further corrosion of corrosive media is effectively prevented, and the heterocyclic compounds and the organophosphorus scale and corrosion inhibitor have obvious synergistic effects when being matched, so that the corrosion and scale inhibition effects are better and the corrosion can be inhibited.
Drawings
FIG. 1 is a photograph of a blank, a control and an experimental group of the corrosion solutions in the performance test after continuous corrosion at 70℃for 12 hours, it was observed that the corrosion of the 16Mn steel sheet without the corrosion and scale inhibitor added was serious, whereas the 16Mn steel sheet with the commercially available polyaspartic acid as the corrosion and scale inhibitor was observed to be corroded by naked eyes, and the 16Mn steel sheet with the heterocyclic compound prepared in example 1 as the corrosion and scale inhibitor was substantially free from corrosion marks.
Detailed Description
The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. The technology not mentioned in the present invention refers to the prior art, and unless otherwise indicated, the following examples and comparative examples are parallel tests, employing the same processing steps and parameters.
Example 1
The corrosion and scale inhibitor comprises the following components in percentage by weight: 0.5 of heterocyclic compound and organic phosphorus scale and corrosion inhibitor DTPMPA.
The heterocyclic compound is an imidazoline derivative grafted modified polyaspartic acid polymer, and the preparation method is as follows:
364.54g of 18-sulfooctadecanoic acid and 134.12g of diethylenetriamine are added into a reaction bottle provided with a thermometer, a stirrer and a condenser, after stirring and mixing uniformly, nitrogen is introduced for protection, the temperature is firstly raised to 165 ℃, the reaction is kept for 3 hours, the temperature is raised to 220 ℃, the reaction is continued for 4 hours, the heating is stopped, the generated water is discharged in time in the reaction process, the reaction is naturally cooled to room temperature to obtain an imidazoline derivative, 100g of polysuccinimide and 8g of the imidazoline derivative are added into 500mL of water, the temperature is raised to 50 ℃, the ultrasonic oscillation is carried out for 60 minutes to uniformly disperse, the pH of the solution is regulated to 9 by using 0.1M sodium hydroxide solution, after stirring and reacting for 24 hours, the pH of the solution is regulated to 7 by using 0.1M hydrochloric acid, then 5L of absolute ethyl alcohol is added for sedimentation, after standing for 24 hours, the filtration is carried out, the obtained solid is washed three times by absolute ethyl alcohol, and then is dried in vacuum at 60 ℃ for 10 hours.
Example 2
Substantially the same as in example 1, except that the corrosion and scale inhibitor comprises 1:0.6 of heterocyclic compound and organic phosphorus scale and corrosion inhibitor DTPMPA.
Example 3
Substantially the same as in example 1, except that the corrosion and scale inhibitor comprises 1:0.7 of heterocyclic compound and organic phosphorus scale and corrosion inhibitor DTPMPA.
Example 4
Substantially the same as in example 1, except that the corrosion and scale inhibitor comprises 1:0.8 of heterocyclic compound and organic phosphorus scale and corrosion inhibitor DTPMPA.
Example 5
Substantially the same as in example 1, except that the corrosion and scale inhibitor comprises 1:0.9 of heterocyclic compound and organic phosphorus scale and corrosion inhibitor DTPMPA.
Example 6
Substantially the same as in example 1, except that the corrosion and scale inhibitor comprises 1:1 and an organic phosphorus scale and corrosion inhibitor DTPMPA.
Comparative example 1:
substantially the same as in example 1, except that the heterocyclic compound was replaced with commercially available polyaspartic acid (brand: changYao, model: CY-D2).
Comparative example 2:
substantially the same as in example 1, except that the corrosion and scale inhibitor comprises only the heterocyclic compound.
Comparative example 3:
substantially the same as in example 1, except that the corrosion and scale inhibitor comprises only the organophosphorus scale and corrosion inhibitor DTPMPA.
Performance test:
the corrosion and scale inhibitor in the examples 1-6 and the comparative examples 1-3 of the invention are used as samples for scale inhibition performance test, and the dosage of the samples is 10ppm;
(1) determination of CaCO inhibition of Water treatment Agents according to (GB/T16632-2008) method for determination of scale inhibition Properties of Water treatment Agents by calcium carbonate deposition 3 Scale performance.
According to (GB/T22626-2008) method for measuring scale inhibition properties of Water treatment agent by calcium phosphate depositionCa resistance of water treatment chemical 3 (PO 4 ) 2 Performance.
CaSO resistance of water treatment agent tested by static scale inhibition method 4 Scale performance, preparing experimental water sample to make Ca 2+ (in CaSO) 4 Calculated as) is 2040mg/L, SO 4 2- (in CaSO) 4 Meter) is 2040mg/L, a sample is added into the solution, the solution is heated for 10 hours in a constant-temperature water bath at 80 ℃, kept stand and cooled to room temperature, the supernatant liquid is taken for measurement after filtration, the water sample is measured by an EDTA titration method, and the scale inhibition rate is calculated.
The scale inhibition rate formula is as follows:
η＝[(V x -V o )/(V 1 -V o )]×100％，
wherein: v (V) x Adding the EDTA solution volume consumed by the water sample after the sample is heated;
V 1 the EDTA solution volume is consumed for the water sample before the experiment;
V 0 the EDTA solution volume consumed by the water sample after heating without the sample is provided.
The test results are shown in table 1 below:
table 1:
as can be seen from Table 1, the corrosion and scale inhibitor provided by the invention is applicable to CaCO 3 、Ca 3 (PO 4 ) 2 、CaSO 4 Has better scale inhibition efficiency.
(2) Weigh 0.2g CaCl 2 、0.2g MgCl 2 ·6H 2 O、0.2g NaHCO 3 、0.0882g Na 2 SO 4 Adding 0.6g of NaCl into a beaker containing 200ml of deionized water, uniformly stirring by using a glass rod, preparing three parts, respectively adjusting the pH value to 4 by using dilute hydrochloric acid, and taking the three parts as an etching solution, wherein a blank group is not added with a corrosion and scale inhibitor, a control group is added with commercially available polyaspartic acid (brand: changYao, model: CY-D2), and an experimental group is added with the heterocyclic compound prepared in the example 1, wherein the addition amount is 50ppm;
the 16Mn steel sheet is firstly used for 100 # Sanded with sand paper and then reused 500 # Sanding, washing with tap water, washing with deionized water, coating the surface with absolute ethanol, air drying, respectively placing into etching solutions of blank group, control group and experimental group, continuously etching at 70deg.C for 12 hr, taking out, washing with deionized water and absolute ethanol, drying, and observing surface corrosion condition, see figure 1.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The corrosion and scale inhibitor containing the heterocyclic compound is characterized in that the heterocyclic compound is an imidazoline derivative grafted modified polyaspartic acid polymer;
the structural formula of the imidazoline derivative is as follows:
r is sulfonic group substituted C 8 -C 20 An alkyl group;
also comprises an organic phosphorus scale and corrosion inhibitor;
the weight ratio of the heterocyclic compound to the organophosphorus scale and corrosion inhibitor is 1:0.5-1.
2. The corrosion and scale inhibitor containing heterocyclic compounds as described in claim 1, wherein the preparation method of the heterocyclic compounds is as follows:
mixing RCOOH and diethylenetriamine uniformly, heating to 150-170 ℃ under the protection of nitrogen, carrying out heat preservation reaction for 2-4h, heating to 200-220 ℃, carrying out heat preservation reaction for 2-4h, stopping heating, discharging water generated in the reaction process in time, naturally cooling to room temperature to obtain an imidazoline derivative, adding polysuccinimide and the imidazoline derivative into water, heating to 40-60 ℃, carrying out ultrasonic vibration to uniformly disperse, regulating the pH of the solution to 9-10 by using sodium hydroxide solution, carrying out reaction for 24-36h, regulating the pH of the solution to 6-7 by using hydrochloric acid, carrying out sedimentation by using absolute ethyl alcohol, standing for 12-24h, filtering, washing the obtained solid with absolute ethyl alcohol for multiple times, and drying.
3. The corrosion and scale inhibitor of claim 2, wherein the molar ratio of RCOOH to diethylenetriamine is 1:1-1.3.
4. The corrosion and scale inhibitor containing heterocyclic compounds according to claim 2, wherein the weight ratio of polysuccinimide to imidazoline derivative is 1:0.05-0.1.
5. The corrosion and scale inhibitor containing heterocyclic compounds according to claim 1, wherein the organic phosphorus scale and corrosion inhibitor comprises any one or a combination of a plurality of ATMP, HEDP, DTPMPA, EDTMPS, HPAA.
6. The corrosion and scale inhibitor containing a heterocyclic compound as described in any one of claims 1 to 5, wherein the amount of the corrosion and scale inhibitor used is 10 to 50ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410115975.2A CN117843159A (en) | 2024-01-26 | 2024-01-26 | Corrosion and scale inhibitor containing heterocyclic compound |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410115975.2A CN117843159A (en) | 2024-01-26 | 2024-01-26 | Corrosion and scale inhibitor containing heterocyclic compound |
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| Publication Number | Publication Date |
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| CN117843159A true CN117843159A (en) | 2024-04-09 |
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| CN202410115975.2A Pending CN117843159A (en) | 2024-01-26 | 2024-01-26 | Corrosion and scale inhibitor containing heterocyclic compound |
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| Country | Link |
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| CN (1) | CN117843159A (en) |
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- 2024-01-26 CN CN202410115975.2A patent/CN117843159A/en active Pending
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