Composition for metal corrosion inhibition and degerming and method for preventing metal corrosion and degerming
By preparing ionic compound compositions with specific structures, the problems of corrosion and bacterial growth of existing metal corrosion inhibitors in aqueous or gaseous environments with high water content have been solved, achieving highly efficient metal corrosion inhibition and sterilization effects, suitable for acidic corrosive solutions and produced water from oil and gas fields.
Patent Information
- Application Number
- CN202410724770.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-12-05
AI Technical Summary
Existing metal corrosion inhibitors, while suppressing metal corrosion, have problems such as unsatisfactory corrosion inhibition performance, poor water solubility, and high toxicity. Furthermore, they are prone to the growth of bacteria and microorganisms in aqueous or gaseous environments with high water content, leading to slime and scale, and causing under-deposit corrosion.
By using ionic compounds with specific structures as compositions, and by reacting the compounds in a solvent under heating conditions, ionic compounds with good dispersibility and surface activity are prepared for metal corrosion inhibition and sterilization, and are suitable for corrosive fluid media and fluid media containing bacteria.
It achieves excellent metal corrosion inhibition and sterilization effects, combining highly efficient corrosion inhibition and sterilization properties, and is suitable for fluid media such as acidic corrosive solutions and produced water from oil and gas fields.
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Figure CN121065704A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the field of metal corrosion inhibition, in particular, to a composition for metal corrosion inhibition and bacteria removal and a method for preventing metal corrosion and bacteria removal. BACKGROUND
[0002] Metal corrosion is a common problem in industrial production, and safety accidents and unplanned shutdown accidents caused by metal corrosion have caused great losses to enterprises. Adding corrosion inhibitors is a common and economical corrosion protection method. Common metal corrosion inhibitors include organic amines, thiourea derivatives, imidazoline derivatives, acetylenic alcohols, benzotriazoles, etc., but these metal corrosion inhibitors have their own shortcomings, such as unsatisfactory corrosion inhibition performance, poor water solubility, and high toxicity.
[0003] The environment that causes metal corrosion is usually an aqueous phase or a gas phase with high moisture content, and bacteria and microorganisms are also likely to breed in such an environment. On the one hand, bacteria and microorganisms produce slime, which deteriorates water quality and forms dirt, and on the other hand, the slime and dirt produced can cause under-deposit corrosion of metals. Therefore, while inhibiting corrosion, sterilization also needs to be considered. SUMMARY
[0004] The purpose of the present disclosure is to provide a composition for metal corrosion inhibition and bacteria removal and a method for preventing metal corrosion and bacteria removal, and the composition of the present disclosure has good metal corrosion inhibition and bacteria removal effects.
[0005] To achieve the above purpose, the first aspect of the present disclosure provides a composition for metal corrosion inhibition and bacteria removal, which contains at least one of the ionic compounds having the structure shown in the following formula (1),
[0006]
[0007] In formula (1), R is a substituted or unsubstituted alkyl group with a carbon atom number of 6-30, or a substituted or unsubstituted aryl group with a carbon atom number of 6-30, X - selected from Cl - , Br - , I - , CH3SO3 - , C6H5SO3 - or CH3C6H5SO3 - ;
[0008] The substituents in R are selected from one or more of halogen groups, hydroxyl groups, amino groups, amine groups, mercapto groups, alkyl groups with a carbon atom number of 1-3, alkoxy groups with a carbon atom number of 1-3, and phenyl groups.
[0009] Optionally, R is a substituted or unsubstituted alkyl group having a carbon number of 10 to 25, or a substituted or unsubstituted aryl group having a carbon number of 10 to 25.
[0010] Optionally, the substituents in R are selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, an alkyl group having a carbon number of 1 to 3, an alkoxy group having a carbon number of 1 to 3, and a phenyl group.
[0011] Optionally, R is an unsubstituted alkyl group having a carbon number of 6 to 30, or an unsubstituted aryl group having a carbon number of 6 to 30.
[0012] Optionally, R is an unsubstituted alkyl group having a carbon number of 8 to 24, preferably, R is an unsubstituted alkyl group having a carbon number of 12 to 18.
[0013] Optionally, R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group.
[0014] Optionally, the substituents in R are selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, a methyl group, an ethyl group, a methoxy group, an ethoxy group, and a phenyl group.
[0015] Optionally, the ionic compound is selected from the group consisting of:
[0016]
[0017] Optionally, the composition further comprises one or more of thiourea, urotropine, an organic amine, imidazoline, and a quaternary ammonium salt.
[0018] Preferably, the organic amine is selected from one or more of ethylenediamine, hexanediamine, ethanolamine, diethanolamine, triethanolamine, decylamine, dodecylamine, tetradecylamine, hexadecylamine, morpholine, and piperazine.
[0019] The quaternary ammonium salt is selected from one or more of dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, tetradecyl dimethyl benzyl ammonium chloride, a pyridine quaternary ammonium salt, and a quinoline quaternary ammonium salt.
[0020] Optionally, the ionic compound is prepared by a method comprising the following steps:
[0021] under heating, a compound represented by formula (2) is contacted with a compound represented by formula (3) in a solvent,
[0022] R-X Formula (3);
[0023] In Formula (3), R is a substituted or unsubstituted alkyl group having 6-30 carbon atoms, or a substituted or unsubstituted aryl group having 6-30 carbon atoms, and -X is selected from -Cl, -Br, -I, CH3SO3-, C6H5SO3- or CH3C6H5SO3-.
[0024] The substituent in R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group.
[0025] Optionally, the heating condition includes that the reaction temperature is 60-120°C, and the reaction time is 1-24h; and the solvent is selected from one or more of methanol, ethanol, n-propanol, isopropanol, n-butanol, tetrahydrofuran and 1,4-dioxane.
[0026] The second aspect of the present disclosure provides a method for preventing metal corrosion and sterilization, which comprises: introducing the composition provided by the first aspect of the present disclosure into a fluid medium; the fluid medium is a corrosive fluid medium and / or a fluid medium containing bacteria.
[0027] Optionally, the corrosive fluid medium is an acidic corrosive solution or oil and gas field produced water.
[0028] Optionally, the concentration of the composition in the fluid medium is 1-1000mg / L, preferably 10-700mg / L, preferably 30-300mg / L, preferably 1-100mg / L, preferably 5-50mg / L.
[0029] The composition of the present disclosure has good metal corrosion inhibition and sterilization performance, and is convenient to use.
[0030] Other features and advantages of the present disclosure will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS
[0031] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:
[0032] Figure 1 Nuclear magnetic resonance hydrogen spectrum of the ionic compound prepared for Example 1.
[0033] Figure 2 Mass spectrum of the ionic compound prepared for Example 1.
[0034] Figure 3 NMR of the ion compound prepared in Example 2.
[0035] Figure 4 Mass spectrum of the ion compound prepared in Example 2.
[0036] Figure 5 NMR of the ion compound prepared in Example 3.
[0037] Figure 6 Mass spectrum of the ion compound prepared in Example 3. DETAILED DESCRIPTION
[0038] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the present disclosure.
[0039] In the present application, the term "substituted or unsubstituted" means that the functional group recited after the term can have or not have a substituent (hereinafter, the substituent will be collectively referred to as R for convenience of description), and if it has a substituent, the number of substituents can be one or more, and when the number of substituents is more than one, each substituent can be the same or different. For example, "substituted or unsubstituted aryl" means aryl having one or more substituents R or unsubstituted aryl.
[0040] In the present application, the number of carbon atoms of a substituted or unsubstituted functional group means the total number of carbon atoms. For example, if R is a substituted alkyl group having 6 carbon atoms, the total number of carbon atoms of the alkyl group and the substituents thereon is 6.
[0041] In the present application, aryl means an optional functional group or substituent derived from an aromatic carbocyclic ring. The aryl group can be a monocyclic aryl group (e.g., phenyl) or a polycyclic aryl group, in other words, the aryl group can be a monocyclic aryl group, a fused aryl group, two or more monocyclic aryl groups linked by a carbon-carbon bond in conjugation, a monocyclic aryl group and a fused aryl group linked by a carbon-carbon bond in conjugation, or two or more fused aryl groups linked by a carbon-carbon bond in conjugation. That is, unless otherwise specified, two or more aromatic groups linked by a carbon-carbon bond in conjugation can also be regarded as the aryl group of the present application. Among them, the fused aryl group can include, for example, a bicyclic fused aryl group (e.g., naphthyl), a tricyclic fused aryl group (e.g., phenanthryl, anthryl, fluorenyl), etc. The aryl group does not contain heteroatoms such as B, N, O, S, P, Se, and Si. It should be noted that biphenyl and fluorenyl are both regarded as aryl groups in the present application. Examples of the aryl group can include, but are not limited to, phenyl, naphthyl, anthryl, phenanthryl, fluorenyl, pyrenyl, etc.
[0042] In the present application, the substituted aryl group can be one or more hydrogen atoms in the aryl group substituted with a group such as a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a phenyl group, or the like. It should be understood that the number of carbon atoms of the substituted aryl group refers to the total number of carbon atoms of the aryl group and the substituent group on the aryl group, for example, the substituted aryl group having 18 carbon atoms refers to the total number of carbon atoms of the aryl group and the substituent group thereon being 18.
[0043] In the present application, the number of carbon atoms of the alkyl group can be 6 to 30, and the number of carbon atoms of the alkyl group can specifically be 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30 or other values within a range formed by any two of the aforementioned values, and the alkyl group can include linear alkyl groups and branched alkyl groups. Specific examples of the alkyl group include, but are not limited to, n-hexyl group, heptyl group, n-octyl group, 2-ethylhexyl group, nonyl group, decyl group, 3,7-dimethyloctyl group, n-dodecyl group, n-tridecyl group, n-tetradecyl group, n-pentadecyl group, n-hexadecyl group, n-heptadecyl group, n-octadecyl group, and the like.
[0044] The present disclosure provides a composition for metal corrosion inhibition and bacteria removal, the composition containing at least one of the ionic compounds having a structure represented by the following formula (1),
[0045]
[0046] In formula (1), R is a substituted or unsubstituted alkyl group having 6 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, X - selected from Cl - , Br - , I - , CH3SO3 - , C6H5SO3 - , or CH3C6H5SO3 - ; the substituent group in R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, and a phenyl group.
[0047] The inventors of the present disclosure have unexpectedly found that the composition of the present disclosure has good dispersibility and surface activity, and when used for metal corrosion inhibition and bacteria removal, it has good metal corrosion inhibition and bacteria removal effects.
[0048] In one embodiment of the disclosure, R is a substituted or unsubstituted alkyl group having a carbon number of 10 to 25, or, a substituted or unsubstituted aryl group having a carbon number of 10 to 25; optionally, the substituents in R are selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, an alkyl group having a carbon number of 1 to 3, an alkoxy group having a carbon number of 1 to 3, and a phenyl group.
[0049] In one embodiment of the disclosure, R is an unsubstituted alkyl group having a carbon number of 6 to 30, or, an unsubstituted aryl group having a carbon number of 6 to 30. Specifically, R is an unsubstituted alkyl group having a carbon number of 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30, or, an unsubstituted aryl group having a carbon number of 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30.
[0050] In one embodiment of the disclosure, R is an unsubstituted alkyl group having a carbon number of 8 to 24, preferably, R is an unsubstituted alkyl group having a carbon number of 12 to 18, further preferably, R is an unsubstituted alkyl group having a carbon number of 14 to 18, more preferably, R is an unsubstituted alkyl group having a carbon number of 16 to 18.
[0051] In one embodiment of the disclosure, R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group; optionally, the substituents in R are selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a mercapto group, a methyl group, an ethyl group, a methoxy group, an ethoxy group, and a phenyl group.
[0052] In one embodiment of the disclosure, the ionic compound is selected from the group consisting of:
[0053]
[0054]
[0055] In one embodiment of the present disclosure, the composition further comprises one or more of thiourea, urotropine, organic amine, imidazoline or quaternary ammonium salt. In the present disclosure, the organic amine can be well known to those skilled in the art, for example, can be aliphatic amines, alcohol amines, cycloalkyl amines. In one embodiment, the organic amine is selected from one or more of ethylenediamine, hexanediamine, ethanolamine, diethanolamine, triethanolamine, decylamine, dodecylamine, tetradecylamine, hexadecylamine, morpholine and piperazine. The quaternary ammonium salt can be selected from, but not limited to, one or more of dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, tetradecyl dimethyl benzyl ammonium chloride, pyridine quaternary ammonium salt and quinoline quaternary ammonium salt.
[0056] According to the present disclosure, the content of the ionic compound of the structure shown in formula (1) in the composition can vary in a wide range, for example, can be 1-99% by weight, preferably 10-80% by weight.
[0057] In one embodiment of the present disclosure, the ionic compound is prepared by a method comprising the following steps: under heating, contacting and reacting a compound shown in formula (2) with a compound shown in formula (3) in a solvent,
[0058] R-X formula (3);
[0059] In formula (3), R is a substituted or unsubstituted alkyl group with carbon atom number of 6-30, or a substituted or unsubstituted aryl group with carbon atom number of 6-30, -X is selected from -Cl, -Br, -I, CH3SO3-, C6H5SO3- or CH3C6H5SO3-; the substituent in R is selected from one or more of halogen group, hydroxyl group, amino group, amine group, mercapto group, alkyl group with carbon atom number of 1-3, alkoxy group with carbon atom number of 1-3 and phenyl group. The preparation method of the ionic compound of the present disclosure is simple and has high yield.
[0060] In one embodiment of the present disclosure, the heating condition comprises: reaction temperature of 60-120°C, reaction time of 1-24h, preferably, temperature of 80-100°C, reaction time of 2-12h; the solvent can be well known to those skilled in the art, can be selected from, but not limited to, one or more of methanol, ethanol, n-propanol, isopropanol, n-butanol, tetrahydrofuran and 1,4-dioxane.
[0061] The second aspect of the present disclosure provides a method for preventing metal corrosion and sterilization, which comprises: introducing the composition provided by the first aspect of the present disclosure into a fluid medium; the fluid medium is a corrosive fluid medium and / or a fluid medium containing bacteria; optionally, the corrosive fluid medium is an acidic corrosive solution or oil and gas field produced water.
[0062] According to the present disclosure, the concentration of the composition in the fluid medium can vary in a wide range, in one specific embodiment of the present disclosure, the concentration of the composition in the fluid medium is 1-1000 mg / L, preferably 10-700 mg / L, preferably 30-300 mg / L, preferably 1-100 mg / L, preferably 5-50 mg / L.
[0063] In one embodiment, the concentration of the composition in the fluid medium is 1-1000 mg / L, preferably 10-700 mg / L, preferably 30-300 mg / L, the composition in the above dosage range has a better corrosion inhibition effect.
[0064] In another embodiment, the concentration of the composition in the fluid medium is 1-100 mg / L, preferably 5-50 mg / L, the composition in the above dosage range has a better bactericidal effect.
[0065] The present disclosure will be further illustrated by the following examples, but the present disclosure is not limited in any way by the examples.
[0066] The nuclear magnetic analysis (1H NMR) of the present disclosure was performed by using a Bruker Avance 400MHz nuclear magnetic resonance spectrometer, and the mass spectrometry analysis (ESI-MS) was performed by using a Bruker Solarix FT-ICR MS Fourier transform ion cyclotron resonance mass spectrometer.
[0067] In the examples and comparative examples of the present disclosure, the allyl imidazole, halogenated alkane, halogenated aromatic hydrocarbon, ethanol, sulfuric acid, etc. were purchased from Beijing Inokai Technology Co., Ltd. or Sinopharm Chemical Reagent Co., Ltd. Tetradecyl alcohol methanesulfonate was synthesized according to the reference (Novel Antiviral Activity of L-Dideoxy Bicyclic Nucleoside Analogues versus Vaccinia and Measles Viruses in Vitro, Journal of Medical Chemistry, 2013, 56(3), 1311-1322.). Other raw materials were commercially available unless otherwise specified.
[0068] Example 1
[0069]
[0070] Into a 100 mL flask, 5.407 g of allyl imidazole (0.05 mol), 6.031 g of chlorohexane (0.05 mol), 10 mL of ethanol were added, heated to reflux, and reacted for 24 h. Then cooled to room temperature, spin-dried to obtain a yellow viscous liquid, which was the target ionic compound, and the ionic compound was directly used as a metal corrosion inhibitor and bacteria removal composition.
[0071] The target ionic compound was characterized by nuclear magnetic resonance, and the data were 1 H NMR (400 MHz, DMSO): δ 9.44 (1H, s), 7.91 (1H, s), 7.81 (1H, s), 6.05 (1H, m), 5.34 (2H, m), 4.89 (2H, s), 4.21 (2H, s), 1.78 (2H, s), 1.24 (6H, s), 0.83 (3H, s). The characterization data of mass spectrometry (ESI-MS, positive ion) were: 193.16.
[0072] Example 2
[0073]
[0074] Into a 100 mL flask, 5.407 g of allyl imidazole (0.05 mol), 12.006 g of iodo octane (0.05 mol), 10 mL of ethanol were added, heated to reflux, and reacted for 1 h. Then cooled to room temperature, spin-dried to obtain a yellow viscous liquid, which was the target ionic compound.
[0075] The target ionic compound was characterized by nuclear magnetic resonance, and the data were 1 H NMR (400 MHz, DMSO): δ 9.36 (1H, s), 7.88 (1H, s), 7.79 (1H, s), 6.06 (1H, m), 5.35 (1H, d), 5.29 (1H, d), 4.88 (2H, s), 4.20 (2H, m), 1.79 (2H, m), 1.22 (10H, m), 0.84 (3H, t). The characterization data of mass spectrometry (ESI-MS, positive ion) were: 221.20.
[0076] Example 3
[0077]
[0078] Into a 100 mL flask, 5.407 g of allyl imidazole (0.05 mol), 12.462 g of bromododecane (0.05 mol), 15 mL of ethanol were added, heated to reflux, and reacted for 4 h. Then cooled to room temperature, spin-dried to obtain a yellow viscous liquid, which was the target ionic compound.
[0079] The target ionic compound was characterized by nuclear magnetic resonance, and the data were 1 H NMR (400 MHz, DMSO): δ 9.33 (1H, s), 7.87 (1H, s), 7.78 (1H, s), 6.05 (1H, m), 5.35 (1H, d), 5.29 (1H, d), 4.88 (2H, s), 4.19 (2H, m), 1.78 (2H, m), 1.22 (18H, m), 0.83 (3H, t). The characterization data of mass spectrometry (ESI-MS, positive ion) were: 277.27.
[0080] Example 4
[0081]
[0082] 5.407 g of allyl imidazole (0.05 mol), 13.864 g of bromotetradecane (0.05 mol), and 15 mL of ethanol were added to a 100 mL flask, heated to reflux, and reacted for 6 h. Then cooled to room temperature, spin-dried to obtain a yellow viscous liquid, which is the target ionic compound.
[0083] Example 5
[0084]
[0085] 5.407 g of allyl imidazole (0.05 mol), 15.267 g of bromohexadecane (0.05 mol), and 15 mL of ethanol were added to a 100 mL flask, heated to reflux, and reacted for 6 h. Then cooled to room temperature, spin-dried to obtain a light yellow viscous solid, which is the target ionic compound.
[0086] Example 6
[0087]
[0088] 5.407 g of allyl imidazole (0.05 mol), 16.670 g of bromooctadecane (0.05 mol), and 15 mL of ethanol were added to a 100 mL flask, heated to reflux, and reacted for 6 h. Then cooled to room temperature, spin-dried to obtain a light yellow viscous solid, which is the target ionic compound.
[0089] Example 7
[0090]
[0091] 5.407 g of allyl imidazole (0.05 mol), 7.851 g of bromobenzene (0.05 mol), and 15 mL of ethanol were added to a 100 mL flask, heated to reflux, and reacted for 6 h. Then cooled to room temperature, spin-dried to obtain a light yellow viscous solid, which is the target ionic compound.
[0092] Example 8
[0093]
[0094] Into a 100 mL flask, 5.407 g of allyl imidazole (0.05 mol), 10.353 g of 2-bromonaphthalene (0.05 mol), and 15 mL of ethanol were added, heated to reflux, and reacted for 6 h. Then cooled to room temperature, and spin dried to obtain a light yellow sticky solid, which was the target ionic compound.
[0095] Example 9
[0096]
[0097] Into a 100 mL flask, 5.407 g of allyl imidazole (0.05 mol), 14.624 g of tetradecyl methanesulfonate (0.05 mol), and 15 mL of ethanol were added, heated to reflux, and reacted for 6 h. Then cooled to room temperature, and spin dried to obtain a yellow sticky liquid, which was the target ionic compound.
[0098] Example 10
[0099] The target ionic compound was prepared by the same method as in Example 4, except that the target ionic compound prepared in Example 4 was mixed with thiourea to be used as a composition for metal corrosion inhibition and bacteria removal, and the weight ratio of the ionic compound to thiourea in the composition was 4:1.
[0100] Test Example 1
[0101] This test example is a rotating coupon corrosion test to demonstrate the effect of the composition of the present disclosure on metal corrosion inhibition.
[0102] Prepare the corrosion solution: dissolve 260 g of concentrated H2SO4 in 5 L of deionized water to obtain a 0.5 M H2SO4 solution.
[0103] Experimental method: 250 mL of 0.5 M H2SO4 solution was taken in different glass bottles, 20# carbon steel test pieces treated with ethanol and weighed were sequentially hung in the glass bottles, and the test pieces were immersed in the solution without touching the bottom and wall of the bottle, one bottle was not added with any medicament as a blank test (i.e. Comparative Example 1), another bottle was added with a certain mass concentration of allyl imidazole (i.e. Comparative Example 2), and the rest of each bottle was respectively added with the ion compound prepared in the foregoing examples (i.e. Examples 1-10) of corresponding mass concentration. The glass bottles containing the corrosion solution and the test pieces were placed in a rotating rack apparatus, the temperature of the rotating rack apparatus was set to 60℃, the rotating speed was 28 r / min, the linear speed was 1 m / s, the test duration was 4 h, after the end, the test pieces were taken out and treated with water, ethanol and the like, then weighed, the mass loss of the test pieces before and after the test was calculated, the corrosion inhibition rate was calculated by the following formula, and then the corrosion inhibition performance of the medicament was obtained, and the results are shown in Table 1.
[0104] The corrosion inhibition rate calculation formula is as follows:
[0105] η1 = (Δm0-Δm1) / Δm0 x 100
[0106] In the formula: η1 —— corrosion inhibition rate, %
[0107] Δm0 —— mass loss of the test piece in the blank test, g
[0108] Δm1 —— mass loss of the test piece in the medicament test, g
[0109] Table 1
[0110]
[0111]
[0112] The results in Table 1 show that the corrosion inhibition rate of the ion compound of the present disclosure gradually increases with the increase of the concentration of the ion compound. Among them, the corrosion inhibition performance of Examples 4 to 6 is better, and when the concentration of the medicament is 100 mg / L, the corrosion inhibition rate is all more than 93%. The raw material allyl imidazole, i.e. Comparative Example 2, has almost no corrosion inhibition performance.
[0113] Test Example 2
[0114] The present test example is a bactericidal performance test of the composition to prove the bactericidal effect of the composition of the present disclosure.
[0115] The bacterial content in 10 5 -10 7The water sample of 1000 mL was divided into 500 mL triangular flasks, 200 mL in each flask, and a cotton plug was added. Deionized water was added to one flask (comparative example 1), a certain mass concentration of allyl imidazole was added to another flask (comparative example 2), and the remaining flasks each added a corresponding mass concentration of the ionized compound prepared in the foregoing examples (i.e., examples 1-10). After being shaken well, all the sample flasks were placed in a constant temperature condition of 30°C for 4 h. Then, the total number of heterotrophic bacteria in each sample flask was determined by the plate count method, and the bactericidal rate was calculated by the following formula.
[0116] η2 = (n0-n1) / n0x100
[0117] η2 = (n0-n1) / n0x100
[0118] n0 = the total number of heterotrophic bacteria in the blank test, pieces / mL
[0119] n1 = the total number of heterotrophic bacteria in the medicated test, pieces / mL
[0120] Table 2
[0121]
[0122]
[0123] The results in Table 2 show that the bactericidal performance of examples 4-6 is good, and the bactericidal rate is more than 98.5% when the concentration of the medicament is 5 mg / L. The raw material allyl imidazole, i.e., comparative example 2, does not exhibit bactericidal performance.
[0124] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
[0125] In addition, it should be noted that each specific technical feature described in the foregoing specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present disclosure will not further describe various possible combination manners.
[0126] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as it does not deviate from the idea of the present disclosure, and it should be considered as disclosed by the present disclosure.
Claims
1. A composition for metal corrosion inhibition and bacteria removal, the composition containing at least one of ionic compounds having a structure shown in formula (1) below, In formula (1), R is a substituted or unsubstituted alkyl group having 6 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, X - is selected from the group consisting of Cl - , Br - , I - , CH3SO3 - , C6H5SO3 - , and CH3C6H5SO3 - ; the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group.
2. The composition of claim 1, wherein, the R is a substituted or unsubstituted alkyl group having 10-25 carbon atoms, or a substituted or unsubstituted aryl group having 10-25 carbon atoms; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group.
3. The composition of claim 1, wherein, the R is an unsubstituted alkyl group having 6-30 carbon atoms, or an unsubstituted aryl group having 6-30 carbon atoms.
4. The composition of claim 1, wherein, the R is an unsubstituted alkyl group having 8-24 carbon atoms, preferably, the R is an unsubstituted alkyl group having 12-18 carbon atoms.
5. The composition of claim 1, wherein, the R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, a methyl group, an ethyl group, a methoxy group, an ethoxy group, and a phenyl group.
6. The composition of claim 1, wherein, the ionic compound is selected from the group consisting of:
7. The composition of claim 1, wherein, the composition further contains one or more of thiourea, urotropine, an organic amine, imidazoline, and a quaternary ammonium salt; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group. the R is an unsubstituted alkyl group having 6-30 carbon atoms, or an unsubstituted aryl group having 6-30 carbon atoms.
8. The composition of claim 1, wherein, the R is an unsubstituted alkyl group having 8-24 carbon atoms, preferably, the R is an unsubstituted alkyl group having 12-18 carbon atoms. the R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, a methyl group, an ethyl group, a methoxy group, an ethoxy group, and a phenyl group. the ionic compound is selected from the group consisting of:
9. The composition of claim 8, wherein, the composition further contains one or more of thiourea, urotropine, an organic amine, imidazoline, and a quaternary ammonium salt; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group. the R is an unsubstituted alkyl group having 6-30 carbon atoms, or an unsubstituted aryl group having 6-30 carbon atoms. the R is an unsubstituted alkyl group having 8-24 carbon atoms, preferably, the R is an unsubstituted alkyl group having 12-18 carbon atoms. the R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, a methyl group, an ethyl group, a methoxy group, an ethoxy group, and a phenyl group. the ionic compound is selected from the group consisting of: the composition further contains one or more of thiourea, urotropine, an organic amine, imidazoline, and a quaternary ammonium salt; optionally, the substituent in the R is selected from one or more of a halogen group, a hydroxyl group, an amino group, an amine group, a sulfhydryl group, an alkyl group having 1-3 carbon atoms, an alkoxy group having 1-3 carbon atoms, and a phenyl group. the R is an unsubstituted alkyl group having 6-30 carbon atoms, or an unsubstituted aryl group having 6-30 carbon atoms. the R is an unsubstituted alkyl group having 8-24 carbon atoms, preferably, the R is an unsubstituted alkyl group having 12-18 carbon atoms. the R is selected from a substituted or unsubstituted n-dodecyl group, a substituted or unsubstituted n-tridecyl group, a substituted or unsubstituted n-tetradecyl group, a substituted or unsubstituted n-pentadecyl group, a substituted or unsubstituted n-hexadecyl group, a substituted or unsubstituted n-heptadecyl group, a substituted or unsubstituted n-octadecyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted phenanthryl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyrenyl group; 10. A method of preventing metal corrosion and degerming, the method comprising: introducing the composition according to any one of claims 1 to 9 into a fluid medium; the fluid medium is a corrosive fluid medium and / or a fluid medium containing bacteria; optionally, the corrosive fluid medium is an acidic corrosive solution or produced water from an oil and gas field.
11. The method of claim 10, wherein, the concentration of the composition in the fluid medium is 1 to 1000 mg / L, preferably 10 to 700 mg / L, preferably 30 to 300 mg / L, preferably 1 to 100 mg / L, preferably 5 to 50 mg / L.