CN103194200B - 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and application thereof - Google Patents
2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and application thereof Download PDFInfo
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- CN103194200B CN103194200B CN201310115092.3A CN201310115092A CN103194200B CN 103194200 B CN103194200 B CN 103194200B CN 201310115092 A CN201310115092 A CN 201310115092A CN 103194200 B CN103194200 B CN 103194200B
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- Prior art keywords
- aminobenzimidazole
- para
- condensed
- sodium benzoate
- corrosion
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title abstract description 7
- 229930040373 Paraformaldehyde Natural products 0.000 title abstract description 7
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 title abstract 5
- 239000004299 sodium benzoate Substances 0.000 title abstract 5
- 235000010234 sodium benzoate Nutrition 0.000 title abstract 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 16
- 239000010962 carbon steel Substances 0.000 claims abstract description 16
- 239000011734 sodium Substances 0.000 claims description 16
- 229910052708 sodium Inorganic materials 0.000 claims description 16
- 239000002332 oil field water Substances 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 abstract description 17
- 230000007797 corrosion Effects 0.000 abstract description 16
- 230000005764 inhibitory process Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003112 inhibitor Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 9
- JWYUFVNJZUSCSM-UHFFFAOYSA-N 2-aminobenzimidazole Chemical compound C1=CC=C2NC(N)=NC2=C1 JWYUFVNJZUSCSM-UHFFFAOYSA-N 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 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
- -1 benzimidazoles compound Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 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
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005304 joining Methods 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
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- MFYSUUPKMDJYPF-UHFFFAOYSA-N 2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-n-phenylbutanamide Chemical compound C=1C=CC=CC=1NC(=O)C(C(=O)C)N=NC1=CC=C(C)C=C1[N+]([O-])=O MFYSUUPKMDJYPF-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 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
- 235000010233 benzoic acid Nutrition 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
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 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
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002390 heteroarenes Chemical class 0.000 description 1
- 238000007654 immersion Methods 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
- 238000002156 mixing 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
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a corrosion inhibitor, 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and an application thereof. The structural formula of the 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate is shown in the specification, and the 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate is used for preventing the corrosion of carbon steel and products thereof in water solutions of oil fields. The 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate disclosed by the invention has the advantages of good water solubility, low using amount, high corrosion inhibition rate, simplicity in synthesis, greenness, environmental friendliness and the like, further still has higher corrosion inhibition effect at high temperature, and can effectively prevent the corrosion of the carbon steel and the products thereof in the water solutions of the oil fields.
Description
Technical field
The invention belongs to inhibiter technical field, particularly a kind of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase preventing carbon steel and goods thereof from corroding in oil-field water solution.
Background technology
In recent years, inhibiter is widely used as important anticorrosion technique a kind of in petroleum industry, and this is mainly effective due to anti-corrosion erosion, and cost is low, 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 containing two nitrogen-atoms, at present field of medicaments is concentrated on for benzimidazoles compound, and achieved many great achievement, the particularly benzimidazoles compound restraining effect for cancer cells, make it become the focus of research, gather around equally at inhibition field benzimidazoles compound and have wide practical use, nitrogen-atoms containing double bond in benzoglyoxaline ring, 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, 2-aminobenzimidazole molecule is caused very easily in metallic surface, chemisorption to occur, metal and corrosive medium are separated and plays corrosion inhibition, but the solubleness of 2-aminobenzimidazole molecule in water is lower, this greatly reduces its corrosion inhibition in water medium, therefore 2-aminobenzimidazole reacts with the PARA FORMALDEHYDE PRILLS(91,95) yl benzoic acid containing hydrophilic radical carboxyl and generates Schiff's base by the present invention, like this by the solubleness of this compounds of increase in water, the simultaneously imino-that contains of this Schiff's base inhibiter, carboxyl, the adsorption site with metal generation chemisorption can be become, better corrosion inhibition can have been given play in oil-field water medium.
Summary of the invention
The object of this invention is to provide a kind of inhibiter 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase and application thereof.
The structural formula of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase is:
。
Described 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase is applied to and prevents carbon steel and goods thereof from corroding in oil-field water solution.
2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase of the present invention has good water solubility, consumption is few, corrosion inhibition rate is high, synthesis is simple and the advantage such as 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.
Accompanying drawing explanation
Fig. 1 is that when 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 when using inhibiter 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase 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) structural formula of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase:
。
(2) preparation method of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase is:
Joining 5 mmoles (0.75 gram) PARA FORMALDEHYDE PRILLS(91,95) base benzene first carboxylic after 5 mmoles (0.2 gram) NaOH is dissolved in 10 milliliters of dehydrated alcohols is dissolved in the obtained solution of 20 milliliters of dehydrated alcohols, after mixing, joining volume is in the there-necked flask of 100 milliliters, under agitation, drip 5 mmoles (0.665 gram) 2-aminobenzimidazole again and be dissolved in the obtained solution of 20 milliliters of dehydrated alcohols, 68 DEG C are refluxed 4 hours, a large amount of light-yellow precipitate is had to generate, filter after being cooled to room temperature, with absolute ethanol washing 5 times, dry, obtain buff powder, (M.P. is 281 ~ 282oC to be 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase, yield is 82.2%).
(3) application of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase:
A. carbon steel test piece is prepared: get Q235 carbon steel, physical dimension is 5.0 × 1.0 × 0.2 centimetre, use the silicon carbide paper polishing of 400#, 1000# and 1200# to flat smooth respectively, clean test piece with filter paper, then put into the vessel filling acetone and invade bubble, after drying strip with absorbent cotton, put into dehydrated alcohol again to soak 5 minutes, further degreasing and dehydration, take out the cool breeze of carbon steel test piece blower and dry up, place in moisture eliminator for subsequent use.
B. the experiment preparation of the simulation oil field aqueous solution: weigh 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 respectively, be dissolved in 1 premium on currency, stirring and dissolving is clarified to solution, with nitrogen flooding oxygen 3 hours, pass into carbonic acid gas to saturated with gas cylinder again, obtain the experiment simulation oil field aqueous solution (this solution is prepared at experimental day).
C. do solution used when inhibition is tested and have two kinds, the first is the oil-field water solution (blank) not adding any inhibiter, the second is the oil-field water solution (density of corrosion inhibitor is 75 mg/litre) adding inhibiter 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase prepared by step (2), get the carbon steel test piece that in two pieces of steps (3), a step is obtained, wherein the first oil-field water solution immersion 72 hours is put in one piece of carbon steel test piece, another block carbon steel test piece is put into the second oil-field water solution and is soaked 72 hours, then take out, the corrosion product of cleaning steel surface, utilize the pattern that scanning electron microscopic observation steel surface is corroded.
Can find out in Fig. 1, it is very serious that carbon steel test piece is corroded, and strip is uneven, and occurs more deep mixed point corrosion pit.
Can find out in Fig. 2, the extent of corrosion of carbon steel strip reduces greatly, strip is comparatively smooth, illustrates that inhibitor molecular can play corrosion mitigating effect in steel surface absorption film-forming.
Claims (2)
1. an inhibiter 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase, is characterized in that the structural formula of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase is:
。
2. the application of 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase according to claim 1, is characterized in that described 2-Aminobenzimidazole-p-methanal sodium Benzoic carboxylase is applied to and prevents carbon steel and goods thereof from corroding in oil-field water solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115092.3A CN103194200B (en) | 2013-04-05 | 2013-04-05 | 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115092.3A CN103194200B (en) | 2013-04-05 | 2013-04-05 | 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103194200A CN103194200A (en) | 2013-07-10 |
| CN103194200B true CN103194200B (en) | 2015-05-20 |
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|---|---|---|---|
| CN201310115092.3A Expired - Fee Related CN103194200B (en) | 2013-04-05 | 2013-04-05 | 2-aminobenzimidazole-condensed para-formaldehyde sodium benzoate and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103194200B (en) |
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2013
- 2013-04-05 CN CN201310115092.3A patent/CN103194200B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 苯并咪唑及其衍生物的缓蚀性能;胡建春等;《材料保护》;20111130;第44卷(第11期);实验部分第一段，表2 * |
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| CN103194200A (en) | 2013-07-10 |
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Granted publication date: 20150520 |