CN103159681B - 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof - Google Patents
2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof Download PDFInfo
- Publication number
- CN103159681B CN103159681B CN201310115091.9A CN201310115091A CN103159681B CN 103159681 B CN103159681 B CN 103159681B CN 201310115091 A CN201310115091 A CN 201310115091A CN 103159681 B CN103159681 B CN 103159681B
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- CN
- China
- Prior art keywords
- sodium acetate
- aminobenzimidazole
- amino benzimidazole
- carbon steel
- fratol
- Prior art date
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- JWYUFVNJZUSCSM-UHFFFAOYSA-N 2-aminobenzimidazole Chemical compound C1=CC=C2NC(N)=NC2=C1 JWYUFVNJZUSCSM-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 16
- 239000010962 carbon steel Substances 0.000 claims abstract description 16
- -1 Fratol phenyl aldehyde Chemical group 0.000 claims description 19
- 239000002332 oil field water Substances 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 12
- 230000005764 inhibitory process Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003112 inhibitor Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical group C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical class [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002390 heteroarenes Chemical class 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a corrosion inhibitor 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof. The structural formula of the 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde is shown in the specification. The 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde is applied to preventing carbon steel and products thereof from being corroded in aqueous liquid of an oil field. The 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde has the advantages of good water solubility, less use level, high inhibition efficiency, simpleness in synthesis, greenness and environmental-friendliness and the like, and has higher inhibition effect at high temperature, and can effectively prevent carbon steel and products thereof from being corroded in aqueous liquid of the oil field.
Description
Technical field
The invention belongs to inhibiter technical field, particularly a kind of 2-aminobenzimidazole that prevents that carbon steel and goods thereof from corroding in oil-field water solution adjacent Fratol phenyl aldehyde that contracts.
Background technology
In recent years, inhibiter is widely used as a kind of important anticorrosion technique in petroleum industry, and this is mainly that cost is low because anti-corrosion erosion is effective, suitability is strong and simple to operate, and the high development of attention rate in the field of business of current Inhibitor For Oil Well System is very fast.
2-aminobenzimidazole is the special heteroaromatic compound that contains two nitrogen-atoms, concentrate on field of medicaments for benzimidazoles compound at present, and obtained many great achievements, the particularly benzimidazoles compound restraining effect for cancer cells, make it become the focus of research, in inhibition field, benzimidazoles compound is gathered around and is had wide practical use equally, in benzoglyoxaline ring, contain the nitrogen-atoms of two keys, because the existence of its lone-pair electron, easy and metal ion forms coordinate bond, in addition the conjugatedπbond of benzoglyoxaline ring also easily and metal interact, cause 2-aminobenzimidazole molecule that chemisorption very easily occurs in metallic surface, metal and corrosive medium are separated and play corrosion inhibition, but the solubleness of 2-aminobenzimidazole molecule in water is lower, this greatly reduces its corrosion inhibition in water medium, therefore the present invention reacts 2-aminobenzimidazole and generates Schiff's base with the o-Oxy-acetatebenzaldehyde that contains hydrophilic radical carboxyl, the solubleness of this compounds in water will be increased like this, the imino-that this Schiff's base inhibiter contains simultaneously, carboxyl, can become the adsorption site with metal generation chemisorption, in oil-field water medium, can better give play to corrosion inhibition.
Summary of the invention
The object of this invention is to provide a kind of inhibiter 2-aminobenzimidazole contract adjacent Fratol phenyl aldehyde and application thereof.
The contract structural formula of adjacent Fratol phenyl aldehyde of 2-aminobenzimidazole is:
。
The described 2-aminobenzimidazole adjacent Fratol phenyl aldehyde that contracts is applied to and prevents that carbon steel and goods thereof from corroding in oil-field water solution.
2-aminobenzimidazole of the present invention contracts, and adjacent Fratol phenyl aldehyde has good water solubility, consumption is few, corrosion inhibition rate is high, synthesize the advantages such as simple and environmental protection, and at high temperature still there is higher corrosion mitigating effect, can effectively prevent carbon steel and goods thereof in oil-field water solution corrosion.
Brief description of the drawings
Fig. 1 is that while not using inhibiter in the embodiment of the present invention, the surface topography stereoscan photograph after 72 hours is soaked in carbon steel test piece in oil-field water solution.
Fig. 2 is that while using inhibiter 2-aminobenzimidazole to contract adjacent Fratol phenyl aldehyde in the embodiment of the present invention, the surface topography stereoscan photograph after 72 hours is soaked in carbon steel test piece in oil-field water solution.
Embodiment
embodiment:
(1) the 2-aminobenzimidazole structural formula of adjacent Fratol phenyl aldehyde that contracts:
。
(2) the contract preparation method of adjacent Fratol phenyl aldehyde of 2-aminobenzimidazole is:
5 mmoles (0.2 gram) NaOH is dissolved in and joins 5 mmoles (0.90 gram) o-Oxy-acetatebenzaldehyde after 10 milliliters of dehydrated alcohols and be dissolved in the solution that 20 milliliters of dehydrated alcohols make, after mixing, join volume and be in the there-necked flask of 100 milliliters, under agitation condition, drip again 5 mmoles (0.665 gram) 2-aminobenzimidazole and be dissolved in the solution that 20 milliliters of dehydrated alcohols make, 72 DEG C are refluxed 4 hours, there are a large amount of white precipitates to generate, after being cooled to room temperature, filter, with absolute ethanol washing 4 times, dry, obtain white powder, be 2-aminobenzimidazole and contract that (M.P. is 264 ~ 267oC to adjacent Fratol phenyl aldehyde, yield is 77.6%).
(3) the 2-aminobenzimidazole application of adjacent Fratol phenyl aldehyde of contracting:
A. prepare carbon steel test piece: get Q235 carbon steel, physical dimension is 5.0 × 1.0 × 0.2 centimetre, use respectively the silicon carbide paper polishing of 400#, 1000# and 1200# to smooth smooth, clean test piece with filter paper, then put into the vessel that fill acetone and invade bubble, dry behind test piece surface with absorbent cotton, putting into dehydrated alcohol soaks 5 minutes again, further degreasing and dehydration, takes out carbon steel test piece and dries up with blower cool breeze, places in moisture eliminator for subsequent use.
B. the preparation of the simulation oil field aqueous solution for experiment: weigh respectively 70 grams of sodium-chlor, 6 grams of Calcium Chloride Powder Anhydrouss, 4 grams of magnesium chlorides, 0.58 gram of S-WAT, 0.48 gram of sodium bicarbonate and 1.5 grams of sodium sulphite, be dissolved in 1 premium on currency, stirring and dissolving to solution is clarified, with nitrogen flooding oxygen 4 hours, pass into carbonic acid gas to saturated with gas cylinder again, obtain the experiment simulation oil field aqueous solution (this solution is in experiment preparation on the same day).
C. while doing inhibition experiment, solution used has two kinds, the first is the oil-field water solution (blank) that does not add any inhibiter, the second is to add the contract oil-field water solution (density of corrosion inhibitor is 75 mg/litre) of adjacent Fratol phenyl aldehyde of inhibiter 2-aminobenzimidazole prepared by step (2), get a in two steps (3) and walk the carbon steel test piece making, wherein a carbon steel test piece is put into the first oil-field water solution and is soaked 72 hours, another piece carbon steel test piece is put into the second oil-field water solution and is soaked 72 hours, then take out, clean the corrosion product of steel surface, the pattern that utilizes scanning electron microscopic observation steel surface to be corroded.
In Fig. 1, can find out, it is very serious that carbon steel test piece is corroded, test piece surface irregularity, and there is more deep mixed point corrosion pit.
In Fig. 2, can find out, the extent of corrosion on carbon steel test piece surface reduces greatly, and test piece surface is comparatively smooth, illustrates that inhibitor molecular can and play corrosion mitigating effect in steel surface absorption film-forming.
Claims (2)
1. the inhibiter 2-aminobenzimidazole adjacent Fratol phenyl aldehyde that contracts, is characterized in that the contract structural formula of adjacent Fratol phenyl aldehyde of 2-aminobenzimidazole is:
。
2. the 2-aminobenzimidazole according to claim 1 application of adjacent Fratol phenyl aldehyde of contracting, is characterized in that the described 2-aminobenzimidazole adjacent Fratol phenyl aldehyde that contracts is applied to and prevents that carbon steel and goods thereof from corroding in oil-field water solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115091.9A CN103159681B (en) | 2013-04-05 | 2013-04-05 | 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115091.9A CN103159681B (en) | 2013-04-05 | 2013-04-05 | 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103159681A CN103159681A (en) | 2013-06-19 |
| CN103159681B true CN103159681B (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310115091.9A Expired - Fee Related CN103159681B (en) | 2013-04-05 | 2013-04-05 | 2-amino benzimidazole condensed o-oxy sodium acetate benzaldehyde and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103159681B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383797B (en) * | 2018-03-09 | 2020-07-21 | 浙江农林大学 | Anticorrosive compound and preparation method and application thereof |
| CN110699692A (en) * | 2019-10-15 | 2020-01-17 | 东营施普瑞石油工程技术有限公司 | Double-condensation Schiff base acidizing corrosion inhibitor, preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5610454A (en) * | 1979-07-06 | 1981-02-02 | Bridgestone Tire Co Ltd | Complex consisting of steel cord and rubber and its manufacture |
| CN1241563A (en) * | 1998-07-14 | 2000-01-19 | 兰州大学 | Method of synthesizing benzimidazole and its derivative |
| CN101875638A (en) * | 2009-05-01 | 2010-11-03 | 西北农林科技大学 | Method for synthesizing 2-aminomethyl benzimidazole by microwave irradiation |
-
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- 2013-04-05 CN CN201310115091.9A patent/CN103159681B/en not_active Expired - Fee Related
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| CN103159681A (en) | 2013-06-19 |
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Granted publication date: 20141105 |