CN110359053A - A kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor and preparation method thereof - Google Patents
A kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor and preparation method thereof Download PDFInfo
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- CN110359053A CN110359053A CN201910776062.4A CN201910776062A CN110359053A CN 110359053 A CN110359053 A CN 110359053A CN 201910776062 A CN201910776062 A CN 201910776062A CN 110359053 A CN110359053 A CN 110359053A
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- Prior art keywords
- ammonium
- imidazoline
- corrosion inhibitor
- salt corrosion
- quatemary
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- 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
Abstract
The invention discloses a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitors and preparation method thereof, raw material includes oleic acid, tetraethylenepentamine, quaternizing agent, neopelex, potassium iodide, the oleic acid and tetraethylenepentamine react to obtain imidazoline intermediate, then the Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor reacted again with quaternizing agent, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is obtained by Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor compounding neopelex and potassium iodide, and the present invention has preferable corrosion mitigating effect.
Description
Technical field
The invention belongs to Treatment of Industrial Water and environmental technology field, and in particular to a kind of compound imidazoline quaternary ammonium salt inhibition
Agent and preparation method thereof.
Background technique
Oil field often with corrosion inhibiter include amine, cyclammonium class, amides, amide carboxylic acid's class and its derivative, imidazoline and its
Derivative etc., wherein imidazolidine derivatives have preferable corrosion inhibition, are field use most widely a kind of corrosion inhibiter.It is practical
In, the imidazolidine derivatives corrosion mitigating effect under low concentration is unobvious, to meet corrosion mitigating effect, then increases dosage, causes
Increased costs.
Summary of the invention
It is an object of the invention to: a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor and preparation method thereof is provided, by multiple
With other components, to reduce the dosage of Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor.
The technical solution adopted by the invention is as follows:
A kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, raw material include oleic acid, tetraethylenepentamine, quaternizing agent, 12
Sodium alkyl benzene sulfonate, potassium iodide, the oleic acid and tetraethylenepentamine react to obtain imidazoline intermediate, then again with quaternized examination
The Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor that agent is reacted, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is delayed by imidazoline quaternary ammonium salt
What erosion agent compounding neopelex and potassium iodide obtained.
Further, the molar ratio of the oleic acid and tetraethylenepentamine is 1.0:1.1-1.3.
Further, the molar ratio of the oleic acid and tetraethylenepentamine is 1.0:1.2.
Further, the molar ratio of the imidazoline intermediate and quaternizing agent is 1:1.2.
Further, the quaternizing agent is benzyl chloride.
Further, the Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, neopelex and potassium iodide account for compound imidazoles
The weight percent of hyamine corrosion inhibiter is Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 35-40%, neopelex 10-
15%, potassium iodide 45-55%.
Further, the Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor accounts for 38%, neopelex 12%, potassium iodide
50%.
A kind of preparation method of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, which comprises the following steps:
1) oleic acid, tetraethylenepentamine are stirred to react 2h at 140-170 DEG C according to certain mol proportion, then heat to 210-
230 DEG C, 6.5h is reacted, imidazoline intermediate is obtained；
2) imidazoline intermediate is cooled to 50-70 DEG C, the molar ratio according to imidazoline intermediate and quaternizing agent is
1:1.2 reacts 3h, product is isolated and purified, and Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is made；
3) Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is compounded with neopelex, potassium iodide.
Further, the molar ratio of the oleic acid and tetraethylenepentamine is 1.0:1.2, the imidazoline intermediate and quaternary ammonium
The molar ratio for changing reagent is 1:1.2, and the quaternizing agent is benzyl chloride, each in the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
The weight percent of component is Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 35-40%, neopelex 10-15%, potassium iodide
45-55%.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor of the invention has preferable corrosion mitigating effect, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
It adsorbs on the surface of the material, forms one layer of adsorbed film, prevent the erosion of corrosive liquids, neopelex is anion table
Face activating agent plays Synergistic Effect of Corrosion Inhibition with imidazoline quaternary ammonium salt quaternary ammonium salt, and Iodide Molecule is small in size, can be to imidazoline season
The gap of ammonium salt corrosion inhibiter and neopelex carries out supplement absorption, keeps adsorbed film closer, to reduce corrosion
The probability that property liquid is contacted with metal.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiment of the present invention, those skilled in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
Embodiment 1
Raw material includes oleic acid, tetraethylenepentamine, quaternizing agent, neopelex, potassium iodide, the oleic acid and
Tetraethylenepentamine reacts the imidazoline quaternary ammonium salt inhibition for obtaining imidazoline intermediate, then reacting again with quaternizing agent
Agent, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor are to compound neopelex and iodine by Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
Change what potassium obtained, the quaternizing agent selects benzyl chloride.
By oleic acid, tetraethylenepentamine according to molar ratio 1.0:1.1, it is stirred to react 2h at 140 DEG C, then heats to 210
DEG C, 6.5h is reacted, imidazoline intermediate is obtained；Imidazoline intermediate is cooled to 50 DEG C, according to imidazoline intermediate and chlorination
The molar ratio of benzyl is 1:1.2, reacts 3h, product is isolated and purified, and Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is made；Then weight is accounted for
Than, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 35%, neopelex 10%, potassium iodide 55% is mixed to prepare compound imidazoles
Hyamine corrosion inhibiter.
Embodiment 2
Raw material includes oleic acid, tetraethylenepentamine, quaternizing agent, neopelex, potassium iodide, the oleic acid and
Tetraethylenepentamine reacts the imidazoline quaternary ammonium salt inhibition for obtaining imidazoline intermediate, then reacting again with quaternizing agent
Agent, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor are to compound neopelex and iodine by Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
Change what potassium obtained, the quaternizing agent selects benzyl chloride.
By oleic acid, tetraethylenepentamine according to molar ratio 1.0:1.2, it is stirred to react 2h at 155 DEG C, then heats to 220
DEG C, 6.5h is reacted, imidazoline intermediate is obtained；Imidazoline intermediate is cooled to 60 DEG C, according to imidazoline intermediate and chlorination
The molar ratio of benzyl is 1:1.2, reacts 3h, product is isolated and purified, and Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is made；Then it is accounted for according to weight
Than, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 38%, neopelex 12%, potassium iodide 50% is mixed to prepare compound imidazoles
Hyamine corrosion inhibiter.
Embodiment 3
Raw material includes oleic acid, tetraethylenepentamine, quaternizing agent, neopelex, potassium iodide, the oleic acid and
Tetraethylenepentamine reacts the imidazoline quaternary ammonium salt inhibition for obtaining imidazoline intermediate, then reacting again with quaternizing agent
Agent, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor are to compound neopelex and iodine by Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
Change what potassium obtained, the quaternizing agent selects benzyl chloride.
By oleic acid, tetraethylenepentamine according to molar ratio 1.0:1.3, it is stirred to react 2h at 170 DEG C, then heats to 230
DEG C, 6.5h is reacted, imidazoline intermediate is obtained；Imidazoline intermediate is cooled to 70 DEG C, according to imidazoline intermediate and chlorination
The molar ratio of benzyl is 1:1.2, reacts 3h, product is isolated and purified, and Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is made；Then it is accounted for according to weight
Than, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 40%, neopelex 15%, potassium iodide 45% is mixed to prepare compound imidazoles
Hyamine corrosion inhibiter.
Embodiment 4
The present embodiment carries out performance evaluation, ginseng to compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor made from embodiment 1 to implementation 3
According to People's Republic of China (PRC) oil and gas industry standard SY/T5405-1996 " acidification sustained release performance test method and evaluation
Index ", using classical weight loss method, using 1moL/L hydrochloric acid solution as corrosive medium, water bath with thermostatic control is to reality at 60 DEG C
It applies example 1 to compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor prepared by implementation 3 to be evaluated, table 1 is experimental data, can be with from table 1
Find out, compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor of the invention has preferable slow release effect, wherein multiple made from embodiment 2
For mould assembly Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor when dosage is 20mg/L, corrosion inhibition rate reaches 94.3%.
Test result of the 1 Compositional type Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor of table in acid medium
| Dosage (mg/L) | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| 10 | 85.4% | 88.4% | 86.3% |
| 20 | 89.2% | 93.1% | 90.6% |
| 30 | 90.4% | 94.3% | 91.6% |
Referring to People's Republic of China's oil and gas industry standard SY/T5273-2000 " oil field extracted water corrosion inhibiter
Method of evaluating performance ", using classical weight-loss method to compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor made from embodiment 1 to embodiment 3
Corrosion inhibition evaluation is carried out, according to constituent shown in table 2, manual simulation's salt water is configured, by the test piece handled well (N80 steel
Piece) it is put into saline solution, salt water dosage is 20cm3/cm2Strip product, is added compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
100mg/L corrodes 24 hours, compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor made from embodiment 1, and corrosion inhibition rate reaches 94.6%, in fact
Compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor made from example 2 is applied, corrosion inhibition rate reaches 97.2%, compound imidazoles made from embodiment 3
Hyamine corrosion inhibiter, corrosion inhibition rate reach 95.3%.
2 manual simulation's salt water constituent table of table
| Corrosive deposit | NaCl | MgCl2·6H2O | NaHCO3 | Na2SO4·10H2O | CaCl2 |
| Concentration (mg/L) | 30000 | 1000 | 1000 | 1000 | 1000 |
On the whole, compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor of the invention has preferable corrosion mitigating effect, imidazoles
Hyamine corrosion inhibiter adsorbs on the surface of the material, forms one layer of adsorbed film, prevents the erosion of corrosive liquids, detergent alkylate sulphur
Sour sodium is anionic surfactant, plays Synergistic Effect of Corrosion Inhibition with imidazoline quaternary ammonium salt quaternary ammonium salt, and Iodide Molecule is small in size,
Can the gap to Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor and neopelex carry out supplement absorption, keep adsorbed film closer,
To reduce the probability that corrosive liquids is contacted with metal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, it is characterised in that: raw material includes oleic acid, tetraethylenepentamine, quaternized
Reagent, neopelex, potassium iodide, the oleic acid and tetraethylenepentamine react to obtain imidazoline intermediate, then again
The Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor reacted with quaternizing agent, the compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is by imidazoles
What hyamine corrosion inhibiter compounding neopelex and potassium iodide obtained.
2. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as described in claim 1, it is characterised in that: the oleic acid and tetrem
The molar ratio of five amine of alkene is 1.0:1.1-1.3.
3. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as claimed in claim 2, it is characterised in that: the oleic acid and tetrem
The molar ratio of five amine of alkene is 1.0:1.2.
4. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as described in claim 1, it is characterised in that: among the imidazoline
The molar ratio of body and quaternizing agent is 1:1.2.
5. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as claimed in claim 4, it is characterised in that: the quaternizing agent
For benzyl chloride.
6. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor according to any one of claims 1 to 5, feature exist
In: the Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, neopelex and potassium iodide account for compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor
Weight percent be Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 35-40%, neopelex 10-15%, potassium iodide 45-
55%.
7. a kind of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as claimed in claim 6, it is characterised in that: the imidazoline quaternary ammonium
Salt corrosion inhibiter accounts for 38%, neopelex 12%, potassium iodide 50%.
8. a kind of preparation method of compound Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor as described in claim 1, which is characterized in that including
Following steps:
1) oleic acid, tetraethylenepentamine are stirred to react 2h at 140-170 DEG C according to certain mol proportion, then heat to 210-230
DEG C, 6.5h is reacted, imidazoline intermediate is obtained；
2) imidazoline intermediate is cooled to 50-70 DEG C, is 1 according to the molar ratio of imidazoline intermediate and quaternizing agent:
1.2,3h is reacted, product is isolated and purified, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is made；
3) Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor is compounded with neopelex, potassium iodide.
9. preparation method as claimed in claim 7, it is characterised in that: the molar ratio of the oleic acid and tetraethylenepentamine is 1.0:
1.2, the molar ratio of the imidazoline intermediate and quaternizing agent is 1:1.2, and the quaternizing agent is benzyl chloride, described multiple
The weight percent of each component is in mould assembly Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor, Imidazoline Quatemary-ammonium-salt Corrosion Inhibitor 35-40%, dodecane
Base benzene sulfonic acid sodium salt 10-15%, potassium iodide 45-55%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073618A (en) * | 2020-01-03 | 2020-04-28 | 陕西日新石油化工有限公司 | Solid corrosion inhibitor capable of being released uniformly and preparation method thereof |
| CN112662386A (en) * | 2020-12-23 | 2021-04-16 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN113480987A (en) * | 2021-07-29 | 2021-10-08 | 蒲城驭腾新材料科技有限公司 | Imidazoline corrosion inhibitor and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174957A (en) * | 1988-09-23 | 1992-12-29 | Betz Laboratories, Inc. | Emulsion minimizing corrosion inhibitor for naphtah/water systems |
| CN103554027A (en) * | 2013-10-30 | 2014-02-05 | 中国海洋石油总公司 | Method for synthesizing water-soluble imidazoline quaternary ammonium salt corrosion inhibitor |
| CN105670588A (en) * | 2016-02-23 | 2016-06-15 | 中国石油天然气股份有限公司 | Scale removing agent and preparation method and application thereof |
| CN106283069A (en) * | 2016-08-30 | 2017-01-04 | 句容宁武高新技术发展有限公司 | For oil-gas gathering and transportation corrosion inhibiter and preparation method thereof |
| CN107892910A (en) * | 2017-11-10 | 2018-04-10 | 中国石油集团渤海钻探工程有限公司 | Inexpensive multifunctional acid liquid system |
-
2019
- 2019-08-21 CN CN201910776062.4A patent/CN110359053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174957A (en) * | 1988-09-23 | 1992-12-29 | Betz Laboratories, Inc. | Emulsion minimizing corrosion inhibitor for naphtah/water systems |
| CN103554027A (en) * | 2013-10-30 | 2014-02-05 | 中国海洋石油总公司 | Method for synthesizing water-soluble imidazoline quaternary ammonium salt corrosion inhibitor |
| CN105670588A (en) * | 2016-02-23 | 2016-06-15 | 中国石油天然气股份有限公司 | Scale removing agent and preparation method and application thereof |
| CN106283069A (en) * | 2016-08-30 | 2017-01-04 | 句容宁武高新技术发展有限公司 | For oil-gas gathering and transportation corrosion inhibiter and preparation method thereof |
| CN107892910A (en) * | 2017-11-10 | 2018-04-10 | 中国石油集团渤海钻探工程有限公司 | Inexpensive multifunctional acid liquid system |
Non-Patent Citations (1)
| Title |
|---|
| 白义珍等: "一种油田注水缓蚀剂的合成及性能评价", 《应用化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073618A (en) * | 2020-01-03 | 2020-04-28 | 陕西日新石油化工有限公司 | Solid corrosion inhibitor capable of being released uniformly and preparation method thereof |
| CN112662386A (en) * | 2020-12-23 | 2021-04-16 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN112662386B (en) * | 2020-12-23 | 2022-04-05 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN113480987A (en) * | 2021-07-29 | 2021-10-08 | 蒲城驭腾新材料科技有限公司 | Imidazoline corrosion inhibitor and preparation method and application thereof |
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