CN103014717A - Method for modifying organic corrosion inhibitor by magnetic functionalization - Google Patents
Method for modifying organic corrosion inhibitor by magnetic functionalization Download PDFInfo
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- CN103014717A CN103014717A CN2012105753450A CN201210575345A CN103014717A CN 103014717 A CN103014717 A CN 103014717A CN 2012105753450 A CN2012105753450 A CN 2012105753450A CN 201210575345 A CN201210575345 A CN 201210575345A CN 103014717 A CN103014717 A CN 103014717A
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- corrosion inhibitor
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- 239000003112 inhibitor Substances 0.000 title claims abstract description 70
- 238000005260 corrosion Methods 0.000 title claims abstract description 28
- 230000007797 corrosion Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007306 functionalization reaction Methods 0.000 title abstract description 5
- 238000012986 modification Methods 0.000 claims abstract description 23
- 230000004048 modification Effects 0.000 claims abstract description 23
- 239000002122 magnetic nanoparticle Substances 0.000 claims abstract description 13
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 239000013543 active substance Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000002086 nanomaterial Substances 0.000 claims description 11
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 10
- -1 class of department Chemical compound 0.000 claims description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims description 9
- 230000000116 mitigating effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- 239000011553 magnetic fluid Substances 0.000 claims description 6
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 239000004159 Potassium persulphate Substances 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 235000019394 potassium persulphate Nutrition 0.000 claims description 4
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 claims description 4
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 125000005587 carbonate group Chemical group 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 229920000136 polysorbate Polymers 0.000 claims description 3
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 claims description 3
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 18
- 230000005764 inhibitory process Effects 0.000 abstract description 9
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 3
- 239000004094 surface-active agent Substances 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 239000010962 carbon steel Substances 0.000 description 10
- 239000013535 sea water Substances 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 6
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011554 ferrofluid Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention provides a method for modifying an organic corrosion inhibitor by magnetic functionalization, which is the method compounding the organic corrosion inhibitor with a magnetic nanometer material to improve a corrosion inhibition effect of the organic corrosion inhibitor. The method comprises the following steps of: dispersing magnetic nanoparticles into the organic corrosion inhibitor and mixing uniformly; adding a proper amount of a surfactant; adjusting the acidity; and adding an initiator to realize organic-inorganic compounding at set temperature. The method provided by the invention facilitates the organic corrosion inhibitor to have double functions of magnetic attraction and organic adsorption and have strong adhesion force with iron-based materials, and effectively improves the corrosion inhibition effect of the organic corrosion inhibitor. Besides, the magnetic functionalization method is simple and general, and proper surfactants and initiators are chosen according to properties of organic matters to realize the compounding with magnetic nanometer materials to complete the magnetic functionalization modification. Moreover, the method is beneficial to developing novel efficient corrosion inhibitors based on original corrosion inhibitors, and provides an effective way for saving the resource and realizing the rapid and effective development of novel corrosion inhibitor products.
Description
Technical field
The present invention relates to a kind of organic inhibitor be carried out modification.Particularly relate to a kind of can Effective Raise organic inhibitor inhibition efficiency pass through magnetic/functionalized organic inhibitor is carried out modification.
Background technology
Inhibiter can stop or slow down corrosion of metal effectively.But existing inorganic inhibitor often function singleness, environmental pollution is more serious; Organic inhibitor and normally surface adsorption effect of intermetallic effect, namely insecure also inhomogeneous, corrosion mitigating effect is general.Therefore explore the stronger functionalization organic inhibitor of bonding force, oneself becomes an important directions of R and D high-efficient corrosion inhibitor.Magnetic/functionalized matrix material has very wide application prospect, especially magnetic composite successfully has been applied to the aspects such as sorbent material recovery of medically target medication, Industrial Catalysis and environmental area, obtain very significant effect, but the research of magnetic/functionalized inhibiter yet there are no report.
The physical properties of iron has determined that it is a kind of material of attracting mutually with magnetic substance of being easy to; therefore magnetic/functionalized organic inhibitor and the bonding force between the iron will increase polarity, is conducive to form the stronger protective layer of binding ability on the surface of iron.In addition, the result of study of having reported shows can be by slowing down Fe under the action of a magnetic field
3+And Fe
2+Diffusion and impel Fe in the solution
3+Be reduced to Fe
2+, suppress anode dissolution.So introducing magnetic is to improve its new approaches to the iron preservative effect in organic inhibitor, also is an effective way.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of specific function of utilizing magnetic to strengthen the bonding force of organic inhibitor, suppress anode dissolution, so improve inhibition efficiency pass through magnetic/functionalized organic inhibitor is carried out modification.
The technical solution adopted in the present invention is: a kind ofly by magnetic/functionalized organic inhibitor being carried out modification, is that organic inhibitor and magnetic Nano material is compound, improves the method for organic inhibitor corrosion mitigating effect, and recombination process specifically comprises the steps:
1) is dispersed in magnetic nano-particle in the organic inhibitor and mixes;
2) add an amount of tensio-active agent;
3) regulate acidity;
4) add initiator, under design temperature, realize the compound of organic and inorganic.
Described magnetic nano-particle is magnetic fluid, or Fe base, Co is basic, Ni is basic and a kind of alloy magnetic Nano material of FeNiCo in basic, or a kind of compound magnetic Nano material in ferrite and the uhligite.
The amount of putting into of the magnetic nano-particle described in the step 1) is: the magnetic nano-particle of putting into 0.5g～3g in the organic inhibitor of every 100mL.
Step 2) tensio-active agent described in is a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, the polyvalent alcohol.
Acidity described in the step 3) according to the organic inhibitor Composition Control in pH＜7.
Initiator described in the step 4) is a kind of in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or the 2,2'-Azobis(2,4-dimethylvaleronitrile).
Described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
Of the present inventionly by magnetic/functionalized organic inhibitor is carried out modification, makes organic inhibitor have simultaneously magnetic attraction and organic adsorption dual effect, stronger with the bonding force of iron, Effective Raise the corrosion mitigating effect of organic inhibitor.And magnetic/functionalized method simple general-purpose can select suitable tensio-active agent and initiator to realize with magnetic Nano material according to organic characteristic compound, finishes magnetic/functionalized modification.Be conducive to development of new high-efficient corrosion inhibitor on original inhibiter Research foundation.For economizing on resources and realizing that quick, effective exploitation novel corrosion inhibitor product provides effective way.
Description of drawings
Fig. 1 is 20# carbon steel electrochemical impedance spectroscopy in natural sea-water in the example 1;
Among the figure: curve a is the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that contains sample 1;
Curve b is the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that contains sample 2 (sample 2 is identical for composition and sample 1, but the organic inhibitor that does not carry out magnetic/functionalized modification);
Curve c is the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that does not add any inhibiter.
Embodiment
Organic inhibitor is carried out modification make a detailed description by magnetic/functionalized of the present invention below in conjunction with embodiment and accompanying drawing.
Of the present inventionly by magnetic/functionalized organic inhibitor is carried out modification, be intended to utilize the specific function of magnetic strengthen organic inhibitor bonding force, suppress anode dissolution, and then improve inhibition efficiency.That is, compound by organic inhibitor and magnetic Nano material, form the magnetic organic-inorganic composition, realize organic inhibitor is carried out magnetic/functionalized modification.
Of the present inventionly by magnetic/functionalized organic inhibitor being carried out modification, is that organic inhibitor and magnetic Nano material is compound, improves the corrosion mitigating effect of organic inhibitor, and recombination process specifically comprises the steps:
1) is dispersed in magnetic nano-particle in the organic inhibitor and mixes;
Described magnetic nano-particle is magnetic fluid (ferrofluid, nickel magnetic fluid, cobalt magnetic fluid etc.), or Fe base, Co is basic, Ni is basic and basic a kind of in interior common alloy magnetic Nano material of FeNiCo, or a kind of in interior common compound magnetic Nano material of ferrite (Zn ferrite, Mn ferrite, Ni ferrite, vectolite, Z 250 and rare earth garnet type ferrite etc.) and uhligite.
The add-on of described magnetic nano-particle is: the magnetic nano-particle that adds 0.5g～3g in every 100mL organic inhibitor.
2) add an amount of tensio-active agent;
Described tensio-active agent is a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, the polyvalent alcohol, and consumption is determined according to the character of organic composition and tensio-active agent.
3) regulate acidity;
Described acidity according to the organic inhibitor Composition Control in pH＜7.
4) add initiator, under design temperature, realize the compound of organic and inorganic.
Described initiator is a kind of in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or the 2,2'-Azobis(2,4-dimethylvaleronitrile).Described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
The below for example carries out modification to organic inhibitor and is described in more detail by magnetic/functionalized of the present invention:
Example 1:
1) takes by weighing Nanometer Cobalt Ferrite Oxide 0.2g;
2) Nanometer Cobalt Ferrite Oxide is evenly spread in the 15mL organic inhibitor, and add 0.1g OP-10;
3) regulating acidity is pH=3;
4) add 5mg Ammonium Persulfate 98.5 initiator;
5) at 85 ℃ of lower isothermal reaction 3h, obtain sample 1;
Illustrate:
1. used organic inhibitor is commercially available organic inhibitor step 2), technical grade product;
2. the sample 2 of mentioning among Fig. 1 is that composition and sample 1 are identical, but the organic inhibitor that does not carry out magnetic/functionalized modification.
3. corrosion mitigating effect analysis:
A) the 20# carbon steel is placed in the natural sea-water medium that does not contain any inhibiter, its erosion rate is 0.9056mm/a;
B) the 20# carbon steel is placed in the natural sea-water medium that contains sample 2, its erosion rate is 0.2383mm/a, and corrosion inhibition rate is 73.7%;
C) the 20# carbon steel is placed in the natural sea-water medium that contains this example 1, its erosion rate is 0.0693mm/a, and corrosion inhibition rate is 93.1%;
D) erosion rate analysis and electrochemical Impedance Analysis (shown in Figure 1) be as can be known in the natural sea-water medium to the 20# carbon steel by above-mentioned, under the same test condition, the corrosion mitigating effect of the organic inhibitor by magnetic/functionalized modification obviously is better than the corrosion mitigating effect of the non-magnetic/functionalized organic inhibitor of identical component.
Example 2:
1) takes by weighing nano level nickel magnetic fluid 0.75g;
2) nanometer magnetofluid is evenly spread in the 25mL organic inhibitor, and add 0.05g SDBS;
3) regulating acidity is pH=4;
4) add 8mg Ammonium Persulfate 98.5 initiator;
5) at 95 ℃ of lower isothermal reaction 6h, obtain sample 3;
Illustrate:
1. used organic inhibitor is commercially available organic inhibitor step 2), technical grade product;
2. the 20# carbon steel is placed in the natural sea-water medium that contains this example 3, its erosion rate is 0.0815mm/a, and corrosion inhibition rate is 91.0%;
Example 3:
1) takes by weighing nano ferriferrous oxide 0.1g;
2) nano ferriferrous oxide is evenly spread in the 20mL organic inhibitor, and add 0.1g OP-10;
3) regulating acidity is pH=5;
4) add 5mg Potassium Persulphate initiator;
5) at 80 ℃ of lower isothermal reaction 6h, obtain sample 4;
Illustrate:
1. used organic inhibitor is commercially available organic inhibitor step 2), technical grade product;
2. the 20# carbon steel is placed in the natural sea-water medium that contains this example 4, its erosion rate is 0.0487mm/a, and corrosion inhibition rate is 94.6%.
Claims (7)
1. one kind is carried out modification by magnetic/functionalized to organic inhibitor, it is characterized in that, and be that organic inhibitor and magnetic Nano material is compound, improve the method for organic inhibitor corrosion mitigating effect, recombination process specifically comprises the steps:
1) is dispersed in magnetic nano-particle in the organic inhibitor and mixes;
2) add an amount of tensio-active agent;
3) regulate acidity;
4) add initiator, under design temperature, realize the compound of organic and inorganic.
2. according to claim 1ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that, described magnetic nano-particle is magnetic fluid, or Fe base, Co is basic, Ni is basic and a kind of alloy magnetic Nano material of FeNiCo in basic, or a kind of compound magnetic Nano material in ferrite and the uhligite.
3. according to claim 1ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that, the amount of putting into of the magnetic nano-particle described in the step 1) is: the magnetic nano-particle of putting into 0.5g～3g in the organic inhibitor of every 100mL.
4. according to claim 1ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that step 2) described in tensio-active agent be a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, the polyvalent alcohol.
5. according to claim 1ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that, the acidity described in the step 3) according to the organic inhibitor Composition Control in pH＜7.
6. according to claim 1ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that, initiator described in the step 4) is a kind of in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or the 2,2'-Azobis(2,4-dimethylvaleronitrile).
7. according to claim 6ly by magnetic/functionalized organic inhibitor is carried out modification, it is characterized in that, described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104830299A (en) * | 2015-05-20 | 2015-08-12 | 广西经正科技开发有限责任公司 | Imidazoline-quaternary ammonium salt compound corrosion inhibitor and preparation method thereof |
| CN111607796A (en) * | 2019-02-25 | 2020-09-01 | 天津大学 | Controlled-release magnetic zinc-aluminum-cerium hydrotalcite-loaded 2-mercaptobenzothiazole corrosion inhibitor and preparation method thereof |
| CN113151832A (en) * | 2021-04-16 | 2021-07-23 | 江西省科学院应用化学研究所 | Magnetic graphene oxide/carboxymethyl chitosan compound corrosion inhibitor and preparation method and application thereof |
| CN114506931A (en) * | 2022-01-25 | 2022-05-17 | 广州中宸环保科技有限公司 | Novel pipeline corrosion and scale inhibition method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104830299A (en) * | 2015-05-20 | 2015-08-12 | 广西经正科技开发有限责任公司 | Imidazoline-quaternary ammonium salt compound corrosion inhibitor and preparation method thereof |
| CN104830299B (en) * | 2015-05-20 | 2017-12-15 | 广西经正科技开发有限责任公司 | A kind of imidazoline quaternary ammonium salt composite corrosion inhibitor and preparation method thereof |
| CN111607796A (en) * | 2019-02-25 | 2020-09-01 | 天津大学 | Controlled-release magnetic zinc-aluminum-cerium hydrotalcite-loaded 2-mercaptobenzothiazole corrosion inhibitor and preparation method thereof |
| CN113151832A (en) * | 2021-04-16 | 2021-07-23 | 江西省科学院应用化学研究所 | Magnetic graphene oxide/carboxymethyl chitosan compound corrosion inhibitor and preparation method and application thereof |
| CN113151832B (en) * | 2021-04-16 | 2023-02-03 | 江西省科学院应用化学研究所 | Magnetic graphene oxide/carboxymethyl chitosan compound corrosion inhibitor and preparation method and application thereof |
| CN114506931A (en) * | 2022-01-25 | 2022-05-17 | 广州中宸环保科技有限公司 | Novel pipeline corrosion and scale inhibition method and device |
| CN114506931B (en) * | 2022-01-25 | 2022-11-22 | 广州中宸环保科技有限公司 | Pipeline corrosion and scale inhibition method and device |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300192 No. 1 East scientific research road, Tianjin, Nankai District Patentee after: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, MNR (TIANJIN) Country or region after: China Address before: 300192 No. 1 East scientific research road, Tianjin, Nankai District Patentee before: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, SOA (TIANJIN) Country or region before: China |