CN114516834B - Preparation and application of polyhydroxy cation high-temperature oxygen-resistant corrosion inhibitor - Google Patents
Preparation and application of polyhydroxy cation high-temperature oxygen-resistant corrosion inhibitor Download PDFInfo
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- 230000007797 corrosion Effects 0.000 title claims abstract description 96
- 238000005260 corrosion Methods 0.000 title claims abstract description 96
- 239000003112 inhibitor Substances 0.000 title claims abstract description 66
- 150000001768 cations Chemical class 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract description 12
- 239000001301 oxygen Substances 0.000 title abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 title abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 20
- -1 alcohol amine Chemical class 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 15
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 15
- DSOGFOBIDOVCHN-UHFFFAOYSA-N 3-(chloromethyl)quinoline Chemical compound C1=CC=CC2=CC(CCl)=CN=C21 DSOGFOBIDOVCHN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 125000002091 cationic group Chemical group 0.000 claims description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000005764 inhibitory process Effects 0.000 description 8
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 7
- 230000033558 biomineral tissue development Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000010962 carbon steel Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 230000003064 anti-oxidating effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 4
- 229940043276 diisopropanolamine Drugs 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- WDGSTBTXYPCSLW-UHFFFAOYSA-N 2-(2-hydroxyethylamino)-1-phenylpropan-1-ol Chemical compound OCCNC(C)C(O)C1=CC=CC=C1 WDGSTBTXYPCSLW-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002390 rotary evaporation Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GBAXGHVGQJHFQL-UHFFFAOYSA-N 1-(2-hydroxyethylamino)propan-2-ol Chemical compound CC(O)CNCCO GBAXGHVGQJHFQL-UHFFFAOYSA-N 0.000 description 1
- 229940105325 3-dimethylaminopropylamine Drugs 0.000 description 1
- AROGQTWAAJTEFR-UHFFFAOYSA-N 4-(chloromethyl)pyrimidine Chemical compound ClCC1=CC=NC=N1 AROGQTWAAJTEFR-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001263 acyl chlorides Chemical class 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/12—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention provides preparation and application of a polyhydroxy cation high-temperature oxygen-resistant corrosion inhibitor, and relates to the technical field of synthesis of corrosion inhibitors, wherein the polyhydroxy cation corrosion inhibitor is prepared by the following steps: (1) Synthesis of intermediate A: mixing alcohol amine and a solvent, then dropwise adding an epoxy compound, heating and stirring after the dropwise adding is finished, and reacting to obtain an intermediate A; (2) And mixing the intermediate A with 3- (chloromethyl) quinoline, adding a solvent, heating and refluxing, and reacting to obtain the polyhydroxy cation corrosion inhibitor. The corrosion inhibitor has the advantages of environmental friendliness, high temperature resistance and oxygen corrosion resistance, can obviously reduce the corrosion risk of steel pipelines, prolongs the service life of the steel pipelines, and meets the development needs of oil fields.
Description
Technical Field
The invention relates to the technical field of synthesis of corrosion inhibitors, in particular to preparation and application of a polyhydroxy cationic high-temperature oxygen-resistant corrosion inhibitor.
Background
A corrosion inhibitor is a chemical or mixture of chemicals that is present in a medium in a suitable concentration and form and that prevents or slows down corrosion. Corrosion inhibitor technology has become one of the most widespread methods in corrosion protection technology at present, especially for application in the petrochemical industry. In the exploitation process of oil and gas fields, water injection and gas injection technologies are often used for increasing the recovery ratio of crude oil, in recent years, oil fields are more proposed to directly use oil field produced water which is simply treated for reinjection, and the oil field produced water has high mineralization degree and high content of chloride ions, sodium ions, calcium ions, magnesium ions and the like, and the existence of the ions aggravates the corrosion of carbon steel. In addition, nitrogen contains a small amount of oxygen during gas injection, which causes oxygen corrosion of carbon steel. When hypersalinity stratum water and oxygen coexist, carbon steel aggravates corrosion, and particularly the corrosion rate is more serious at high temperature, so that production safety accidents can be caused, and huge economic loss is caused.
Chinese patent CN108794407a discloses a cationic anti-oxidation corrosion inhibitor and preparation method thereof, the corrosion inhibitor is prepared by amidation reaction of 3-dimethylaminopropylamine and acyl chloride to obtain an amide intermediate a, and then heating and refluxing the amide intermediate a with 4-chloromethylpyrimidine. The corrosion inhibitor is environment-friendly and simple to prepare, has good solubility in high-mineralization stratum water and acid solution, has good corrosion inhibition performance at high temperature, and has obvious inhibition effect on oxygen corrosion of carbon steel in high-mineralization stratum water. However, the temperature resistance of the corrosion inhibitor in the invention only reaches about 80 ℃, the corrosion inhibitor is difficult to bear the high temperature of 90 ℃, and the dosage is relatively large.
The Chinese patent CNIO9020956A discloses a multi-heterocyclic cyanuric chloride anti-oxidation corrosion inhibitor, a preparation method and application thereof, wherein the prepared anti-oxidation corrosion inhibitor is an environment-friendly corrosion inhibitor, has a good anti-oxidation corrosion effect, and also has good corrosion inhibition performance at high temperature, but the corrosion inhibition performance in hypersalinity water is to be verified, and meanwhile, the structure is complex and the cost is relatively high.
Aiming at the problems of large dosage, complex structure, high cost, poor high-temperature corrosion resistance and the like of the existing corrosion inhibitor, the need for searching a corrosion inhibitor which is high-temperature resistant, corrosion resistant, low in cost, low in toxicity, high in efficiency and environment-friendly is urgent.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a preparation and application of a polyhydroxy cation high-temperature oxygen-resistant corrosion inhibitor. The corrosion inhibitor has the advantages of environmental friendliness, high temperature resistance and oxygen corrosion resistance, can obviously reduce the corrosion risk of steel pipelines, prolongs the service life of the steel pipelines, and meets the development needs of oil fields.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the invention provides a polyhydroxy cation corrosion inhibitor, which has the structural formula:
r in the structural formula 1 H, C of a shape of H, C n H 2n+1 Aliphatic hydrocarbon chain, C n H 2n-1 Aliphatic hydrocarbon chain, C n H 2n-3 Aliphatic hydrocarbon chain, C n H 2n+ 1 O m A type alkoxy aliphatic hydrocarbon chain or phenyl group; r is R 2 Is H, methyl, ethyl, hydroxy or carbonyl; r is R 3 H, C of a shape of H, C n H 2n+1 Aliphatic hydrocarbon chain, C n H 2n-1 Aliphatic hydrocarbon chain or C n H 2n-3 Aliphatic hydrocarbonsA chain; r is R 4 H, C of a shape of H, C n H 2n+1 Aliphatic hydrocarbon chain or C n H 2n-1 Aliphatic hydrocarbon chains of the type, wherein n=1-22.
In some embodiments, the polyhydroxy cationic corrosion inhibitor has the formula R 1 Is methyl, ethyl, isopropyl or phenyl, R 2 Is H, methyl or ethyl, R 3 Is H, methyl or ethyl, R 4 Is H, methyl or ethyl.
In other specific embodiments, the hydroxy cationic corrosion inhibitor has the structural formula of any one of:
the invention also provides a preparation method of the polyhydroxy cation corrosion inhibitor, which comprises the following steps:
(1) Synthesis of intermediate a: alcohol amine reacts with an epoxy compound to obtain an intermediate A; the chemical reaction formula is as follows:
(2) Synthesis of polyhydroxy cation corrosion inhibitors: the intermediate A reacts with 3- (chloromethyl) quinoline to obtain the polyhydroxy cation corrosion inhibitor; the chemical reaction formula is as follows:
further, step (1) is specifically that after alcohol amine and solvent are mixed, epoxy compound is added dropwise, and after the addition is finished, heating and stirring are carried out, and an intermediate A is obtained through reaction; step (2) is specifically that the intermediate A and 3- (chloromethyl) quinoline are mixed and then added with a solvent, and the polyhydroxy cationic corrosion inhibitor is heated and refluxed for reaction.
Further, the solvent in the step (1) is propylene glycol, and the solvent in the step (2) is 1, 4-dioxane.
Further, the raw materials of the intermediate A in the step (1) comprise the following components in parts by mole: 0.5 part of alcohol amine, 5-10 parts of solvent and 0.5-0.6 part of epoxy compound.
Preferably, the raw materials of the intermediate A in the step (1) comprise the following components in parts by mole: 0.5 part of alcohol amine, 5 parts of solvent and 0.5 to 0.6 part of epoxy compound.
Further preferably, the starting materials of the intermediate a in the step (1) include, in parts by mole: 0.5 part of alcohol amine, 5 parts of solvent and 0.5 part of epoxy compound.
Further, the molar ratio of the intermediate A, the 3- (chloromethyl) quinoline and the solvent in the step (2) is 1:1-1.05:10-20.
Preferably, the molar ratio of the intermediate A, 3- (chloromethyl) quinoline and solvent in step (2) is from 1:1 to 1.05:10.
Further preferably, the molar ratio of intermediate A, 3- (chloromethyl) quinoline and solvent in step (2) is 1:1:10.
Further, the heating temperature in the step (1) is 30-50 ℃; the stirring time is 6-8h.
Further, the temperature of the heating in step (2) is 101.1 ℃; the reflux time in the step (2) is 6-8h.
Further, the epoxy compound in the step (1) is added dropwise as slowly as possible, and is controlled to be 1-2 drops/second.
The polyhydroxy cationic corrosion inhibitor prepared by the invention can be applied to corrosion prevention of steel pipelines.
The invention has the technical effects that:
the corrosion inhibitor has good water solubility, is suitable for carbon steel corrosion protection under the high-mineralization brine condition, has good corrosion inhibition performance (the corrosion inhibitor has good corrosion inhibition effect on N80 steel in stratum water solution with the mineralization degree of 220000mg/L at 90 ℃) under low dosage, has environmental friendliness, high temperature resistance and oxygen corrosion resistance, can obviously reduce the corrosion risk of steel pipelines, prolongs the service life of the steel pipelines, and meets the development requirement of oil fields.
Detailed Description
Of the starting materials used in the present invention, 2- ((2-hydroxyethyl) amino) -1-phenylpropan-1-ol, CAS number: 54804-28-3, purchased from Beijing Xinhui medicine research and development Co., ltd, and the balance being common commercial products, the sources of which are not particularly limited.
Example 1
The preparation method of the polyhydroxy cation corrosion inhibitor comprises the following steps:
(1) Synthesis of intermediate a: to a 250mL three-necked flask, 0.5mol of diisopropanolamine and 5mol of propylene glycol were added, and then 0.5mol of propylene oxide was slowly added dropwise to the flask at 1-2 drops/sec, and after the completion of the dropwise addition, the mixture was heated to 30℃and stirred for 6 hours, and propylene glycol and excess propylene oxide were removed by rotary evaporation under reduced pressure to give intermediate A1.
(2) Synthesis of polyhydroxy cation corrosion inhibitors: 0.5mol of intermediate A1 is added into a round-bottom flask containing 5mol of 1, 4-dioxane, 0.5mol of 3- (chloromethyl) quinoline is slowly dripped into the round-bottom flask, and the solvent is removed under reduced pressure after heating reflux reaction for 6 hours at 101.1 ℃ to obtain the corrosion inhibitor.
Example 2
The preparation method of the polyhydroxy cation corrosion inhibitor comprises the following steps:
(1) Synthesis of intermediate a: to a 250mL three-necked flask, 0.5mol of diethanolamine and 10mol of propylene glycol were added, and then 0.6mol of propylene oxide was slowly added dropwise to the flask, controlled at 1-2 drops/sec, heated to 50℃after the completion of the dropwise addition and stirred for 8 hours, and propylene glycol and excess propylene oxide were removed by rotary evaporation under reduced pressure to give intermediate A2.
(2) Synthesis of polyhydroxy cation corrosion inhibitors: 0.5mol of intermediate A2 is added into a round-bottom flask containing 10mol of 1, 4-dioxane, 0.5mol of 3- (chloromethyl) quinoline is slowly dripped into the round-bottom flask, and the solvent is removed under reduced pressure after heating reflux reaction for 8 hours at the temperature of 101.1 ℃ to obtain the corrosion inhibitor.
Example 3
The preparation method of the polyhydroxy cation corrosion inhibitor comprises the following steps:
(1) Synthesis of intermediate a: to a 250mL three-necked flask, 0.5mol of 2- ((2-hydroxyethyl) amino) -1-phenylpropane-1-ol and 5mol of propylene glycol were added, and then 0.5mol of propylene oxide was slowly added dropwise to the flask, controlled at 1-2 drops/sec, and after the addition was completed, the mixture was heated to 40℃and stirred for 7 hours, propylene glycol and excess glycidyl methacrylate were removed by spin evaporation under reduced pressure, to give intermediate A3.
(2) Synthesis of polyhydroxy cation corrosion inhibitors: 0.5mol of intermediate A3 was charged into a round-bottomed flask containing 5mol of 1, 4-dioxane, 0.5mol of 3- (chloromethyl) quinoline was slowly dropped into the round-bottomed flask, and after heating reflux reaction at 101.1℃for 7 hours, the solvent was removed under reduced pressure to obtain a corrosion inhibitor.
Example 4
The preparation method of the polyhydroxy cation corrosion inhibitor comprises the following steps:
(1) Synthesis of intermediate a: into a 250mL three-necked flask, 0.5mol of 1- (2-hydroxy-ethylamino) -propane-2-ol and 5mol of propylene glycol were added, and then 0.6mol of propylene oxide was slowly added dropwise to the flask, controlled at 1-2 drops/sec, and after the addition was completed, the mixture was heated to 30℃and stirred for 6 hours, propylene glycol and excess propylene oxide were removed by spin-evaporation under reduced pressure, to give intermediate A4.
(2) Synthesis of polyhydroxy cation corrosion inhibitors: 0.5mol of intermediate A4 is added into a round-bottom flask containing 10mol of 1, 4-dioxane, 0.5mol of 3- (chloromethyl) quinoline is slowly dripped into the round-bottom flask, and the solvent is removed under reduced pressure after heating reflux reaction for 6h at 101.1 ℃ to obtain the corrosion inhibitor.
Comparative example 1
The only difference from example 1 is that diisopropanolamine is replaced by diisopropylamine, and the corrosion inhibitor produced has the following formula:
comparative example 2
The only difference from example 1 is that diisopropanolamine is replaced by diethylamine, and the resulting corrosion inhibitor has the following structural formula:
comparative example 3
The only difference from example 1 is that diisopropanolamine is replaced by dimethylamine, and the corrosion inhibitor produced has the following structural formula:
1. example product characterization data
The structure of the corrosion inhibitors finally obtained in examples 1 to 4 was determined from the nuclear magnetic hydrogen spectrum:
example 1:
nuclear magnetic hydrogen spectrum data of example 1: 1 H NMR(400MHz,CDCl 3 ):1.18(d,9H,CH 3 ),3.27(m,6H,CH 2 ),3.58(m,3H,OH),4.02(m,3H,CH),4.50(m,2H,CH 2 ),7.59-7.74(m,2H,Ph),7.99-8.04(m,3H,Ph),8.68(s,1H,Ph)。
example 2:
nuclear magnetic hydrogen spectrum data of example 2: 1 H NMR(400MHz,CDCl 3 ):1.18(d,3H,CH 3 ),3.27(m,2H,CH 2 ),3.43(m,4H,CH 2 ),3.58-3.65(m,3H,OH),3.97-4.02(m,5H,CH,CH 2 ),4.50(s,2H,CH 2 ),5.12(d,1H,CH)7.59-7.74(m,2H,Ph),7.97-8.02(m,3H,Ph),8.67(s,1H,Ph)。
example 3:
nuclear magnetic hydrogen spectrum data of example 3: 1 H NMR(400MHz,CDCl 3 ):1.35(d,3H,CH 3 ),3.43(m,4H,CH 2 ),3.65(br,3H,OH),3.97(m,4H,CH 2 ),4.21(m,1H,CH),4.50(s,2H,CH-Ph),5.12(d,1H,CH),7.36-7.38(m,5H,Ph),7.59-7.74(m,2H,Ph),7.98-8.03(m,3H,Ph),8.67(s,1H,Ph)。
example 4:
nuclear magnetic hydrogen spectrum data of example 4: 1 H NMR(400MHz,CDCl 3 ):1.19(d,6H,CH 3 ),3.43-3.52(m,6H,CH 2 ),3.59-3.66(m,3H,OH),3.98-4.03(m,4H,CH,CH 2 ),4.51(s,2H,CH 2 -Ph),7.60-7.75(m,2H,Ph),7.99-8.04(m,3H,Ph),8.67(s,1H,Ph)。
2. corrosion inhibition effect test under different temperature conditions
Test object: examples 1 to 4 and comparative examples 1 to 3.
The test method comprises the following steps: the static hanger corrosion of the corrosion inhibitor in each example under different conditions was examined, and the test results are shown in table 1.
Condition a: and (3) carrying out a 72-hour corrosion hanging experiment on the N80 steel sheet in stratum water with the mineralization degree of 220000mg/L at 60 ℃, introducing air at a constant speed, wherein the use concentration of the corrosion inhibitor is 0.05%.
Condition B: and (3) carrying out a 72-hour corrosion hanging experiment on the N80 steel sheet in stratum water with the mineralization degree of 220000mg/L at 70 ℃, introducing air at a constant speed, wherein the use concentration of the corrosion inhibitor is 0.05%.
Condition C: and carrying out a 72-hour corrosion hanging experiment on the N80 steel sheet in stratum water with the mineralization degree of 220000mg/L at 80 ℃, introducing air at a constant speed, wherein the use concentration of the corrosion inhibitor is 0.05%.
Condition D: and carrying out a 72-hour corrosion hanging experiment on the N80 steel sheet in stratum water with the mineralization degree of 220000mg/L at 90 ℃, introducing air at a constant speed, wherein the use concentration of the corrosion inhibitor is 0.05%.
TABLE 1
The test results of the embodiment show that the corrosion inhibitor can show good corrosion-slowing effect under the condition of low use amount, and the corrosion inhibition efficiency can reach more than 87% under different temperature conditions (60-90 ℃).
Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A polyhydroxy cation corrosion inhibitor is characterized in that: the polyhydroxy cation corrosion inhibitor has the structural formula:
r in the structural formula 1 H, C of a shape of H, C n H 2n+1 Aliphatic hydrocarbon chain, C n H 2n+1 O m A type alkoxy aliphatic hydrocarbon chain or phenyl group; r is R 2 Is H, methyl, ethyl or hydroxy; r is R 3 Is H or C n H 2n+1 A type aliphatic hydrocarbon chain; r is R 4 Is H or C n H 2n+1 Aliphatic hydrocarbon chains of the type, wherein n=1-22.
2. The polyhydroxy cationic corrosion inhibitor of claim 1, wherein: r in structural formula of polyhydroxy cation corrosion inhibitor 1 Is methyl, ethyl, isopropyl or phenyl, R 2 Is H, methyl or ethyl, R 3 Is H, methyl or ethyl, R 4 Is H, methyl or ethyl.
3. The polyhydroxy cationic corrosion inhibitor of claim 1, wherein: the structural formula of the hydroxyl cationic corrosion inhibitor is any one of the following:
。
4. a process for the preparation of a polyhydroxy cationic corrosion inhibitor according to any one of claims 1 to 3, wherein: the method comprises the following steps:
(1) Synthesis of intermediate a: alcohol amine reacts with an epoxy compound to obtain an intermediate A; the chemical reaction formula is as follows:
(2) Synthesis of polyhydroxy cation corrosion inhibitors: the intermediate A reacts with 3- (chloromethyl) quinoline to obtain the polyhydroxy cation corrosion inhibitor; the chemical reaction formula is as follows:
。
5. the method of manufacturing according to claim 4, wherein: step (1) is specifically that after alcohol amine and solvent are mixed, epoxy compound is added dropwise, and after the dripping is finished, heating and stirring are carried out, and an intermediate A is obtained through reaction; step (2) is specifically that the intermediate A and 3- (chloromethyl) quinoline are mixed and then added with a solvent, and the polyhydroxy cationic corrosion inhibitor is heated and refluxed for reaction.
6. The method of manufacturing according to claim 5, wherein: the raw materials of the intermediate A in the step (1) comprise the following components in parts by mole: 0.5 part of alcohol amine, 5-10 parts of solvent and 0.5-0.6 part of epoxy compound.
7. The method of manufacturing according to claim 5, wherein: the molar ratio of the intermediate A, the 3- (chloromethyl) quinoline and the solvent in the step (2) is 1:1-1.05:10-20.
8. The method of manufacturing according to claim 5, wherein: the heating temperature in the step (1) is 30-50 ℃, and the stirring time is 6-8h.
9. The method of manufacturing according to claim 5, wherein: the heating temperature in the step (2) is 101.1 ℃, and the reflux time is 6-8h.
10. Use of the polyhydroxy cationic corrosion inhibitors according to any of claims 1 to 3 for the corrosion protection of steel pipelines.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03163191A (en) * | 1986-03-06 | 1991-07-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of anti-corrosion agent for metal |
| CN105483708A (en) * | 2016-01-07 | 2016-04-13 | 中国石油集团石油管工程技术研究院 | Corrosion inhibitor suitable for delivery pipeline in H2S/CO2-containing corrosive environment of oil and gas field and preparation method of corrosion inhibitor |
| CN109020956A (en) * | 2018-09-11 | 2018-12-18 | 西南石油大学 | A kind of more heterocycle Cyanuric Chloride antioxygen corrosion inhibiter and its preparation method and application |
| CN110105226A (en) * | 2019-04-15 | 2019-08-09 | 西南石油大学 | A kind of preparation method and applications of the acidified corrosion inhibiter of polycationic quaternary ammonium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308770A1 (en) * | 2007-06-14 | 2008-12-18 | Laxmikant Tiwari | Mono and bis-ester derivatives of pyridinium and quinolinium compounds as environmentally friendly corrosion inhibitors |
| US11359291B2 (en) * | 2019-04-16 | 2022-06-14 | Ecolab Usa Inc. | Use of multiple charged cationic compounds derived from polyamines and compositions thereof for corrosion inhibition in a water system |
-
2020
- 2020-11-20 CN CN202011312097.1A patent/CN114516834B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03163191A (en) * | 1986-03-06 | 1991-07-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of anti-corrosion agent for metal |
| CN105483708A (en) * | 2016-01-07 | 2016-04-13 | 中国石油集团石油管工程技术研究院 | Corrosion inhibitor suitable for delivery pipeline in H2S/CO2-containing corrosive environment of oil and gas field and preparation method of corrosion inhibitor |
| CN109020956A (en) * | 2018-09-11 | 2018-12-18 | 西南石油大学 | A kind of more heterocycle Cyanuric Chloride antioxygen corrosion inhibiter and its preparation method and application |
| CN110105226A (en) * | 2019-04-15 | 2019-08-09 | 西南石油大学 | A kind of preparation method and applications of the acidified corrosion inhibiter of polycationic quaternary ammonium |
Non-Patent Citations (2)
| Title |
|---|
| Mechanism of electroless deposition of Ni–W–P alloys by adding surfactants;Z. Abdel Hamid;《Surf. Interface Anal.》;20031231;第35卷;第496-501页 * |
| 抗高温高氧曼尼希碱缓蚀剂的制备与缓蚀性能;石鑫 等;《油田化学》;20200925;第37卷(第3期);第510-514、521页 * |
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