CN116288364A - Metal corrosion inhibitor, preparation method and application thereof - Google Patents
Metal corrosion inhibitor, preparation method and application thereof Download PDFInfo
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- CN116288364A CN116288364A CN202310301156.2A CN202310301156A CN116288364A CN 116288364 A CN116288364 A CN 116288364A CN 202310301156 A CN202310301156 A CN 202310301156A CN 116288364 A CN116288364 A CN 116288364A
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- corrosion
- corrosion inhibitor
- metal
- trimethyl ammonium
- ammonium iodide
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- 230000007797 corrosion Effects 0.000 title claims abstract description 81
- 238000005260 corrosion Methods 0.000 title claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 239000003112 inhibitor Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 6
- LGPJVNLAZILZGQ-UHFFFAOYSA-M hexadecyl(trimethyl)azanium;iodide Chemical compound [I-].CCCCCCCCCCCCCCCC[N+](C)(C)C LGPJVNLAZILZGQ-UHFFFAOYSA-M 0.000 claims abstract description 35
- 230000002378 acidificating effect Effects 0.000 claims abstract description 22
- 239000007769 metal material Substances 0.000 claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 235000009518 sodium iodide Nutrition 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 15
- 238000001179 sorption measurement Methods 0.000 abstract description 8
- 239000004094 surface-active agent Substances 0.000 abstract description 6
- 238000005536 corrosion prevention Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical group [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000840 electrochemical analysis Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000009881 electrostatic interaction Effects 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013098 chemical test method Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- -1 iodine ions Chemical class 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a metal corrosion inhibitor, a preparation method and application thereof, and belongs to the technical field of corrosion prevention of metal surfaces. The invention discovers that under the specific low concentration, the adsorption film formed by the hexadecyl trimethyl ammonium iodide on the metal surface is more compact and has better adsorptivity, thereby being capable of obviously inhibiting the corrosion of the acidic medium on the metal material. In addition, the single surfactant cetyl trimethyl ammonium iodide is adopted as the metal corrosion inhibitor, the corrosion inhibition mechanism is simple and clear, the corrosion inhibitor does not contain elements harmful to the environment, is environment-friendly, meets the environmental protection requirement, and has wide application prospect.
Description
Technical Field
The invention belongs to the technical field of corrosion prevention of metal surfaces, and particularly relates to a metal corrosion inhibitor, a preparation method and application thereof.
Background
The metal material is widely applied to human life due to its good physical, chemical and mechanical service properties and technological properties. The corrosion phenomenon widely exists in the metal materials, and not only can cause the reduction of the physical properties and the mechanical properties of the metal materials, but also can cause accidents, environmental pollution and huge economic loss, and is a very serious problem facing the current world. Metal corrosion can be divided into two main categories according to the morphology of the corrosion: the general corrosion and the localized corrosion, respectively. Whereas corrosion of metals in acids is a typical uniform corrosion of metals in the active region.
The addition of corrosion inhibitors to corrosive media is a common method of corrosion protection for metals in current industrial production. The choice of corrosion inhibitor depends on its economic viability, efficiency and environmental impact. The traditional inorganic salt of the corrosion inhibitor such as chromate, nitrite and the like is the most widely used corrosion inhibitor in the early industrial corrosion prevention process at home and abroad. However, these inorganic corrosion inhibitors, although providing a relatively good inhibition of the corrosion reaction of metals, can present a major hazard to the environment and to human health. Therefore, a series of organic substances with corrosion inhibition function or special groups are screened and prepared to replace inorganic salt corrosion inhibitors, most of the corrosion inhibitors are mixtures obtained by compounding a plurality of different substances, the mixtures can effectively inhibit metal corrosion in a corrosive environment, and various surfactants are often added in the mixed corrosion inhibitors to play a synergistic effect due to the low concentration and high efficiency of the surfactants.
The mixed corrosion inhibitors in most of the existing acidic media can play a certain role in protection, but because of a plurality of components, the corrosion inhibitors have a complex corrosion inhibition mechanism and contain elements harmful to the environment, and the application of the corrosion inhibitors is greatly limited and can be applied only under a single acidic condition. Therefore, the development of a single surfactant with a simple and definite corrosion inhibition mechanism and a higher corrosion inhibition rate can be achieved under the application condition of lower concentration, and the single surfactant has important application prospect and value.
Disclosure of Invention
The invention provides a metal corrosion inhibitor which is cetyl trimethyl ammonium iodide.
The invention provides a preparation method of the corrosion inhibitor, which comprises the following steps:
dissolving cetyl trimethyl ammonium chloride in methanol solution, adding sodium iodide into the solution, stirring at normal temperature for reaction, taking supernatant after the reaction is finished, and performing reduced pressure distillation to obtain cetyl trimethyl ammonium iodide.
The invention provides application of the corrosion inhibitor in metal corrosion prevention. In particular, the invention provides the application of the corrosion inhibitor in preventing metal from being corroded by an acidic medium.
The concentration of the corrosion inhibitor in the acid medium is selected from 1-10 ppm; preferably 5ppm.
The invention provides a method for preventing metal from being corroded by an acidic medium, which comprises the following steps:
the hexadecyl trimethyl ammonium iodide is added into the acid medium where the metal material is positioned, so that the concentration of the hexadecyl trimethyl ammonium iodide in the acid medium is maintained to be 1-10 ppm, and the metal material can be effectively prevented from being corroded by the acid medium.
In the above method for preventing corrosion of a metal by an acidic medium, the concentration of cetyltrimethylammonium iodide is preferably 5ppm.
In the above method for preventing corrosion of a metal by an acidic medium, the metal is selected from the group consisting of carbon steel, copper, iron, and the like.
In the above method for preventing corrosion of metals by an acidic medium, the acidic medium includes, but is not limited to, a liquid environment containing acidic components such as sulfuric acid, hydrochloric acid, and nitric acid.
The beneficial effects of the invention are as follows:
the invention discovers that under the specific low concentration, the adsorption film formed by the hexadecyl trimethyl ammonium iodide on the metal surface is more compact and has better adsorptivity, thereby being capable of obviously inhibiting the corrosion of the acidic medium on the metal material. In addition, the single surfactant cetyl trimethyl ammonium iodide is adopted as the metal corrosion inhibitor, the corrosion inhibition mechanism is simple and clear, the corrosion inhibitor does not contain elements harmful to the environment, is environment-friendly, meets the environmental protection requirement, and has wide application prospect.
Drawings
FIG. 1 is an SEM image before and after metal etching;
FIG. 2 is a Nyquist plot of different corrosion inhibition systems; wherein, the left image is sequentially provided with a blank group, a CTAC group, a CTAB group and a CTAI group from inside to outside; the right graph shows, from inside to outside, a blank, a 1ppm CTAI, a 2.5ppm CTAI, a 10ppm CTAI, and a 5ppm CTAI.
Detailed Description
The corrosion inhibition principle of the invention is as follows:
as the metal surface has weak positive charges, iodine ions in the corrosion inhibitor molecules are adsorbed on the metal surface in a physical adsorption mode through electrostatic interaction, and the corrosion inhibitor molecules can be adsorbed on the metal surface in a chemical adsorption mode of forming coordination bonds with the metal surface, so that the corrosion inhibitor molecules can form an adsorption film with corrosion blocking molecules on the metal surface, when the concentration of the corrosion inhibitor is increased, the adsorption film formed by the corrosion inhibitor molecules on the metal surface is more compact, and when the film is compact enough, the effect of blocking the corrosion molecules to reduce the corrosion rate of the metal surface can be achieved. Thus, in an acidic environment where no metal corrosion inhibitor is added, the corrosive ions react with the metal matrix to form soluble metal oxides, which can cause damage to the metal matrix. In an acidic environment with CTAI as a corrosion inhibitor, the CTAI is adsorbed on the surface of a metal in a physical (electrostatic interaction)/chemical (coordination bond) adsorption mode when the metal matrix is immersed in an acidic medium to form an adsorption film with a blocking effect, so that the corrosion of the acidic medium to the metal material is prevented.
Other terms used herein, unless otherwise indicated, generally have meanings commonly understood by those of ordinary skill in the art. The invention will be described in further detail below in connection with specific embodiments and with reference to the data. The following examples are intended to illustrate the invention and are not intended to limit the scope of the invention in any way.
Example 1
Preparation of cetyl trimethyl ammonium iodide:
1.002g CTAC (0.003 mol) was weighed and dissolved in 20mL of methanol, then 0.45g sodium iodide (0.003 mol) was weighed and added to the above solution, and the reaction was stirred at room temperature for 3 hours, whereby white precipitate appeared in the solution. And centrifuging the solution, taking supernatant, carrying out reduced pressure distillation on the obtained supernatant, removing methanol solution to obtain white solid particles, washing the obtained white particles with acetone for multiple times, carrying out reduced pressure suction filtration to obtain white solid, and drying in a vacuum drying oven to obtain CTAI (cetyl trimethyl ammonium iodide).
Example 2
Corrosion inhibition effect test:
at 0.5M H 2 SO 4 And verifying the corrosion inhibition effect of CTAI on Q235 low-carbon steel in the solution. Electrochemical tests were performed using an Shanghai Chenhua CHI650E electrochemical workstation. The electrochemical test is carried out under a three-electrode system, wherein a saturated calomel electrode is a reference electrode (SCE), a platinum electrode is a Counter Electrode (CE), and an AZ31B magnesium alloy is a Working Electrode (WE). The size of the Q235 low carbon steel is 1cm multiplied by 0.2cm. The components of AQ235 low carbon steel: 0.14 to 0.22wt.% of carbon, 0.30 to 0.65wt.% of manganese, 0.30wt.% of silicon, 0.035 to 0.050wt.% of sulfur, 0.035 to 0.045wt.% of phosphorus and the balance of iron.
Before the test, the Q235 low-carbon steel is polished by sand paper of different types, then soaked by absolute ethyl alcohol before each test, soaked by acetone for degreasing, washed by deionized water and naturally air-dried in air for standby. In the electrochemical test, the copper wire is soldered to the Q235 low carbon steel sample, and the Q235 low carbon steel sample and the soldered part with the copper wire are sealed by sealant, and only 1cm of the solder is exposed 2 Q235 low carbon steel surface for electricityAnd (5) chemical testing.
Before the electrochemical experiment started, the prepared working electrode was immersed in 0.5MH in order to bring the system to a stable state 2 SO 4 The solution was stirred for 1h. Above H 2 SO 4 The solution does not contain or contains corrosion inhibitors with different types and different concentrations, and the group is as follows:
first test group: setting blank control group, CTAC group, CTAB group, CTAI group and corrosion inhibitor in H 2 SO 4 The concentration in the solution was 5ppm. Second test group: a blank, a 1ppm CTAI group, a 2.5ppm CTAI group, a 5ppm CTAI group, a 10ppm CTAI group were set.
The test results are as follows:
from the SEM image shown in fig. 1, the morphology of the metal surface can be clearly observed, wherein after blank corrosion, in the CTAC-added and CTAB-added photographs, the metal surface has a clear trace of corrosion; in an acidic environment with 5ppm CTAI added, the Q235 surface was free of significant corrosion marks. This demonstrates that CTAI has good corrosion inhibition.
As can be seen from the left graph in fig. 2, under the same concentration condition, the capacitance radius of CTAI is significantly larger than that of CTAC and CTAB, which indicates that in the acidic environment with CTAI, the charge transfer resistance of the metal surface is larger, the resistance of the metal ionization process is larger, and the metal corrosion rate is minimum. As can be seen from the right graph in fig. 2, in the corrosion inhibition system with CTAI added as a corrosion inhibitor at different concentrations, a significant increase in corrosion inhibition effect can be observed with increasing concentration, wherein the capacitance radius is the largest and the corrosion inhibition effect is the best at a concentration of 5 ppm; however, as the concentration of the corrosion inhibitor is continuously increased, the capacitance radius becomes smaller, and as shown in FIG. 2, the radius of the electrochemical capacitance arc at 10ppm is obviously smaller than 5ppm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A metal corrosion inhibitor, which is characterized in that the corrosion inhibitor is hexadecyl trimethyl ammonium iodide.
2. The method for preparing the corrosion inhibitor according to claim 1, which comprises the following steps:
dissolving cetyl trimethyl ammonium chloride in methanol solution, adding sodium iodide into the solution, stirring at normal temperature for reaction, taking supernatant after the reaction is finished, and performing reduced pressure distillation to obtain cetyl trimethyl ammonium iodide.
3. Use of the corrosion inhibitor according to claim 1 for protecting metals against corrosion.
4. Use of the corrosion inhibitor according to claim 1 for protecting metals from corrosion by acidic media.
5. The use according to claim 4, wherein the concentration of the corrosion inhibitor in the acidic medium is selected from 1 to 10ppm.
6. A method for preventing corrosion of metals by acidic media comprising the steps of:
the hexadecyl trimethyl ammonium iodide is added into the acid medium where the metal material is positioned, so that the concentration of the hexadecyl trimethyl ammonium iodide in the acid medium is maintained to be 1-10 ppm, and the metal material can be effectively prevented from being corroded by the acid medium.
7. The method of claim 6, wherein the concentration of cetyltrimethylammonium iodide is selected from 5ppm.
8. The method of claim 6, wherein the metal is selected from carbon steel, copper or iron.
9. The method according to claim 6, wherein the acidic medium is selected from the group consisting of a liquid environment containing acidic components such as sulfuric acid, hydrochloric acid, and nitric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310301156.2A CN116288364A (en) | 2023-03-27 | 2023-03-27 | Metal corrosion inhibitor, preparation method and application thereof |
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| CN202310301156.2A CN116288364A (en) | 2023-03-27 | 2023-03-27 | Metal corrosion inhibitor, preparation method and application thereof |
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| CN116288364A true CN116288364A (en) | 2023-06-23 |
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| CN202310301156.2A Pending CN116288364A (en) | 2023-03-27 | 2023-03-27 | Metal corrosion inhibitor, preparation method and application thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096579A (en) * | 2001-09-20 | 2003-04-03 | Daiwa Kasei Kenkyusho:Kk | Composition for discoloration and corrosion prevention of silver, silver plating, silver ally, or silver alloy plating |
| CN114540894A (en) * | 2022-03-01 | 2022-05-27 | 九牧厨卫股份有限公司 | Bactericidal wear-resistant corrosion-resistant composite coating, preparation method thereof and bactericidal wear-resistant corrosion-resistant product |
-
2023
- 2023-03-27 CN CN202310301156.2A patent/CN116288364A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096579A (en) * | 2001-09-20 | 2003-04-03 | Daiwa Kasei Kenkyusho:Kk | Composition for discoloration and corrosion prevention of silver, silver plating, silver ally, or silver alloy plating |
| CN114540894A (en) * | 2022-03-01 | 2022-05-27 | 九牧厨卫股份有限公司 | Bactericidal wear-resistant corrosion-resistant composite coating, preparation method thereof and bactericidal wear-resistant corrosion-resistant product |
Non-Patent Citations (1)
| Title |
|---|
| 李学铭, 唐丽斌, 张瑾, 木冠南, 刘光恒: "十六烷基三甲基溴化铵在不同酸介质中对冷轧钢腐蚀行为影响的研究", 云南大学学报(自然科学版), no. 02, 10 March 2002 (2002-03-10) * |
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