CN103194197B - 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof - Google Patents
3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof Download PDFInfo
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- CN103194197B CN103194197B CN201310115087.2A CN201310115087A CN103194197B CN 103194197 B CN103194197 B CN 103194197B CN 201310115087 A CN201310115087 A CN 201310115087A CN 103194197 B CN103194197 B CN 103194197B
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- Prior art keywords
- pyridinecarboxylic
- dibromosalicylaldehyde
- hydrazide
- carbon steel
- oil
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- -1 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide Chemical compound 0.000 title claims abstract description 16
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 13
- 239000010962 carbon steel Substances 0.000 claims abstract description 13
- 239000002332 oil field water Substances 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 15
- 230000000116 mitigating effect Effects 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000004088 simulation Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- QULAJXAYTLPVCP-UHFFFAOYSA-N hydrazine;pyridine-2-carboxylic acid Chemical class NN.OC(=O)C1=CC=CC=N1 QULAJXAYTLPVCP-UHFFFAOYSA-N 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- JHZOXYGFQMROFJ-UHFFFAOYSA-N 3,5-dibromo-2-hydroxybenzaldehyde Chemical compound OC1=C(Br)C=C(Br)C=C1C=O JHZOXYGFQMROFJ-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas 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
- 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
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000004580 weight loss Effects 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
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000005336 cracking Methods 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
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 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
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pyridine Compounds (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of inhibiter 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof.The structural formula of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is:
Description
Technical field
The invention belongs to inhibiter technical field, particularly a kind of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide preventing carbon steel and goods thereof from corroding in oil-field water solution.
Background technology
China newly exploits oil field and mostly is deep-well and ultra deep well, and the corrosion factor in well is complicated and changeable, at oil-gas field development and collect in defeated process, due to containing a large amount of H
2s, CO
2deng corrosive medium, serious corrosion is caused to Oil/gas Well sleeve pipe, drilling-production equipment, subsurface tool, gathering line etc., thus cause the accidents such as cased perforated, drilling-production equipment are malfunctioning, pipeline cracking, even jeopardize the safety of life and property of people; According to the data that relevant department's statistical study draws, the inefficacy of the oil equipment of 70% is relevant with corrosion; According to the data that corrosion association of China, association of CNPC, China Chemical Industry association issue, in oil and petrochemical industry, corrode the loss caused and account for 6% of the industry gross output value; China is every year for the expense over ten billion of oil country tubular goods, and wherein most of tubing is scrapped because of corrosion; Add inhibiter and have the features such as simple to operate, instant effect, cost are low, suitability is strong as a kind of conventional anticorrosion technique because of it, be widely used in oilfield exploitation, development rapidly; 3,5 Dibromosalicylaldehyde contracting 2-pyridinecarboxylic hydrazines contain C=N key, the existing atom N containing lone-pair electron, there is again π key, therefore very easily in metallic surface, absorption forms fine and close molecular film, show good corrosion inhibition, and it is applied to and prevents from carbon steel and goods thereof from corroding in oil-field water solution having no report.
Summary of the invention
The object of this invention is to provide a kind of inhibiter 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof.
The structural formula of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is:
。
Described 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is applied to and prevents carbon steel and goods thereof from corroding in oil-field water solution.
3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide of the present invention can prevent carbon steel and the corrosion of goods in oil-field water medium thereof, and has that consumption is few, corrosion mitigating effect good, suitability is strong, synthesize the advantages such as simple and nontoxic.
Embodiment
embodiment:
(1) structural formula of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide:
。
(2) preparation method of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is:
Joining volume after 10 mmoles (1.37 grams) 2-pyridinecarboxylic hydrazine is dissolved in 20 milliliters of dehydrated alcohols is in the there-necked flask of 100 milliliters, after water bath condition lower magnetic force stirring and dissolving, drip 10 mmoles (2.8 grams) 3 again, 5-Dibromosalicylaldehyde is dissolved in the obtained solution of 35 milliliters of dehydrated alcohols, 70 DEG C are refluxed 4 hours, a large amount of yellow mercury oxide is had to generate, filter after being cooled to room temperature, with absolute ethanol washing 5 times, drying, obtains yellow powder, is 3,5 Dibromosalicylaldehyde contracting 2-pyridinecarboxylic hydrazines (M.P. is 264 ~ 269oC, and yield is 83.1%).
(3) application of 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide:
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 4 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. weightless test is utilized to study corrosion inhibition: to get the beaker that 6 specifications are consistent, add respectively in beaker quality prepared by the simulation oil field aqueous solution of b step preparation in step (3) and step (2) not etc. 3, 5 Dibromosalicylaldehyde contracting 2-pyridinecarboxylic hydrazine inhibiter, the concentration of inhibiter in the simulation oil field aqueous solution is made to be respectively 0 mg/litre (blank), 25 mg/litre, 50 mg/litre, 75 mg/litre, 100 mg/litre and 125 mg/litre, again (the carbon steel test piece that in each beaker, extension three is parallel in the simulation oil field aqueous solution of above-mentioned different concns inhibiter is immersed in the dry carbon steel test piece that a step in step (3) prepares, experiment institute survey the weightlessness value often organizing test piece be three parallel carbon steel test pieces in beaker average weightlessness value).
The concrete operation step of weightless test performs by standard GB/T 10124-88, erosion rate (
v), corrosion inhibition rate (
iE)be calculated as follows:
V=(
W 0 –W t )/(
S×
t)
In formula:
vfor erosion rate, unit is gram/(rice
2hour);
w 0 with
w t be respectively the quality before sample corrosion and the quality before and after corrosion, unit is gram;
sfor the working area of test piece, unit is rice
2;
tfor the corrosion experiment time, unit is hour.
IE=[(
W 0 –
W t )/
W 0 ]×100%
In formula:
iEfor inhibition efficiency, unit is %;
w 0 for blank simulation oil field aqueous solution medium carbon steel test piece weight loss, unit is gram;
w t for being added with the simulation oil field aqueous solution medium carbon steel test piece weight loss of different concns inhibiter, unit is gram.
Table 1. weightless test data
Claims (1)
1. an application for inhibiter 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide, is characterized in that described 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is applied to and prevents carbon steel and goods thereof from corroding in oil-field water solution;
The structural formula of described 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide is:
。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115087.2A CN103194197B (en) | 2013-04-05 | 2013-04-05 | 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof |
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|---|---|---|---|
| CN201310115087.2A CN103194197B (en) | 2013-04-05 | 2013-04-05 | 3,5-Dibromosalicylaldehyde-2-Pyridinecarboxylic hydrazide and application thereof |
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| Publication Number | Publication Date |
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| CN103194197A CN103194197A (en) | 2013-07-10 |
| CN103194197B true CN103194197B (en) | 2015-11-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467371B (en) * | 2013-09-27 | 2014-12-03 | 桂林理工大学 | 2-octanone condensation compound 2,6-pyridine sym-diformylhydrazine and application thereof |
| CN107011366A (en) * | 2017-04-11 | 2017-08-04 | 桂林理工大学 | A kind of chloro-salicylic aldehyde of cancer therapy drug 5 contracting hydrazino pyridine schiff bases copper complex of 2 chlorine 6 and synthetic method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1277179A (en) * | 1968-12-10 | 1972-06-07 | Ciba Geigy Uk Ltd | Ester based lubricant compositions |
| US3886211A (en) * | 1968-12-10 | 1975-05-27 | Ciba Geigy Corp | Carboxylic acid hydrazide derivatives |
| GB1397383A (en) * | 1973-01-17 | 1975-06-11 | Ciba Geigy Ag | Dihydrazides |
| CN101805906A (en) * | 2010-04-15 | 2010-08-18 | 桂林理工大学 | Composite corrosion inhibitor for restraining corrosion of carbon steel in seawater and preparation method thereof |
-
2013
- 2013-04-05 CN CN201310115087.2A patent/CN103194197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1277179A (en) * | 1968-12-10 | 1972-06-07 | Ciba Geigy Uk Ltd | Ester based lubricant compositions |
| US3886211A (en) * | 1968-12-10 | 1975-05-27 | Ciba Geigy Corp | Carboxylic acid hydrazide derivatives |
| GB1397383A (en) * | 1973-01-17 | 1975-06-11 | Ciba Geigy Ag | Dihydrazides |
| CN101805906A (en) * | 2010-04-15 | 2010-08-18 | 桂林理工大学 | Composite corrosion inhibitor for restraining corrosion of carbon steel in seawater and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| K2L-SAMs对碳钢在饱和CO2油田水中的缓蚀行为与量子化学研究;陈世亮等;《中国有色金属学报》;20121130;第22卷(第11期);3261-3268 * |
| Synthesis, crystal structures, and spectral characterization of tetranuclear Mn(II) complex with a new Schiff base ligand and molecular dynamics studies on inhibition properties of such Schiff base;Jie Liu等;《Journal of Molecular Structure》;20130111;第1037卷;191-199 * |
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| CN103194197A (en) | 2013-07-10 |
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Effective date of registration: 20210607 Address after: No. 111-9, building 02, No. 10, huashentemple, Yuhuatai District, Nanjing City, Jiangsu Province, 210000 Patentee after: Nanjing Chaoyi Biotechnology Co.,Ltd. Address before: 541004 the Guangxi Zhuang Autonomous Region Guilin Construction Road No. 12 Patentee before: GUILIN University OF TECHNOLOGY |
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Denomination of invention: 3,5-Dibromosalicylic aldehyde 2-pyridylhydrazide and its application Granted publication date: 20151111 Pledgee: Bank of China Limited by Share Ltd. Nanjing City South Branch Pledgor: Nanjing Chaoyi Biotechnology Co.,Ltd. Registration number: Y2024980009025 |