CN107829094A - Sulfur resistive high temperature resistant corrosion inhibitor and preparation method thereof - Google Patents
Sulfur resistive high temperature resistant corrosion inhibitor and preparation method thereof Download PDFInfo
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- CN107829094A CN107829094A CN201711062562.9A CN201711062562A CN107829094A CN 107829094 A CN107829094 A CN 107829094A CN 201711062562 A CN201711062562 A CN 201711062562A CN 107829094 A CN107829094 A CN 107829094A
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- high temperature
- temperature resistant
- corrosion inhibitor
- resistant corrosion
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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
- 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
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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
- C23F11/18—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 inorganic inhibitors
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Abstract
The present invention relates to chemical field, and in particular to a kind of sulfur resistive high temperature resistant corrosion inhibitor and preparation method thereof.The sulfur resistive high temperature resistant corrosion inhibitor in parts by weight, including at least following component：Imidazolines 15~30；Benzothiazole analog derivative 1.5~2；Base catalyst 0.15~0.5；Solvent 25~35；The base catalyst is alkaline hydrated oxide；The solvent is alcohols and the mixture of benzene or its homologue.After testing, sulfur resistive high temperature resistant corrosion inhibitor of the invention has good corrosion inhibition and lasting inhibition efficiency under 180 DEG C of high temperature.
Description
Technical field
The present invention relates to chemical field, and in particular to a kind of sulfur resistive high temperature resistant corrosion inhibitor and preparation method thereof.
Background technology
Corrosion is relatively common and more serious phenomenon in oil production industry, and it is rotten to caused by petroleum pipeline
Erosion, brings huge economic loss, and serious can also cause catastrophic failure and environmental pollution, have a strong impact on that the production in oil field is opened
Hair.Increasingly increase recently as energy demand, the exploitation of the acid gas field such as high sulfur-bearing also gradually increases.High sulfuric acid gas field
As one of most harsh severe corrosive environment during oil exploitation, than in general oil gas field have more corrosion characteristics and
Unfavorable factor.The sour gas such as dry sulfur-bearing act on corrosion of metal very little, but rotten to the pipeline containing water and equipment
Erosion is serious.
There are high nickel-base alloy-steel anti-corrosion, electrification for the rotten candle of peracidity oil gas field, main anti-corrosion means both at home and abroad at present
Learning anti-corrosion, coating antiseptic and anti-corrosion, wherein high nickel-base alloy-steel anti-corrosion, electrochemical anti-corrosive, coating antiseptic has expense to hold high
It is expensive, operate the shortcomings of being not easy.The use of corrosion inhibiter is a kind of economical and effective anticorrosive method in corrosion protection.It, which has, uses
The advantages that measuring small, easy to operate, environmentally friendly, favorable anti-corrosion effect.Wherein imidazoline corrosion inhibitor is a kind of nontoxic, nonirritant gas
Taste, and the environmentally friendly corrosion inhibiter being safe from harm to human body and surrounding environment.In addition, imidazoline corrosion inhibitor is in various acidity
Have preferable corrosion mitigating effect in medium, can by blanketing effect and improve corrosion reaction activation energy come prevent sulfur dioxide and
Corrosion of the sour gas such as carbon dioxide to hardware, there is good application prospect in terms of oilfield water extraction crude oil.
But as oil extraction environment is more and more severe, the formation temperature of oilfield water extraction also more and more higher, even
Some spot temperatures are more than 200 DEG C, and imidazoline corrosion inhibitor is very weak with the suction-operated of metal in high temperature environments, occur
Desorption, substantially reduces corrosion mitigating effect.In addition imidazoline corrosion inhibitor can hydrolyze at high temperature, and self stability declines, drop
Low its continues corrosion inhibition.Therefore, imidazoline corrosion inhibitor is modified to improve the inhibition efficiency under its high temperature, persistently delay
Corrosion energy and resistance to elevated temperatures are extremely necessary.
The content of the invention
In order to solve the above-mentioned technical problem, the first aspect of the invention provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, institute
Corrosion inhibiter is stated in parts by weight, including at least following component：
The base catalyst is alkaline hydrated oxide；The solvent is alcohols and the mixture of benzene or its homologue.
As a kind of preferable technical scheme of the present invention, contain organic siloxane group in the imidazolines.
As a kind of preferable technical scheme of the present invention, the preparation reactions steps of the imidazolines include：
Under azeotropic agent promotes, anhydrous organic acid and organic polyamine stirring, it is heated to reflux, 8~12 is reacted under conditions of 140 DEG C~180 DEG C
Individual hour, system is then cooled to 100 DEG C, toluene is distilled off and obtains product.
As a kind of preferable technical scheme of the present invention, the organic polyamine is (aminoethylamino) -3- isobutyl groups two
Methylmethoxysilane, aminoethylaminoisobutyl methyl dimethoxysilane, (aminoethylaminomethyl) phenethyl three
Methoxy silane, N- aminoethyl -3- aminopropyltriethoxies dimethoxysilane, diethylenetriamine base propyl trimethoxy silicane, N-
In (2- aminoethyls) -3- aminopropyl trimethoxysilanes, [2- [[3- (trimethoxy silane base) propyl group] amino] ethyl] urea
The mixing of any one or more.
As a kind of preferable technical scheme of the present invention, the organic polyamine is diethylenetriamine base propyl trimethoxy silicon
Alkane or N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
As a kind of preferable technical scheme of the present invention, the anhydrous organic acid is the saturated fatty acid of C2~C18 carbochains
With the mixing of any one or more in the unrighted acid of C2~C18 carbochains.
As a kind of preferable technical scheme of the present invention, the anhydrous organic acid is oleic acid or capric acid.
As a kind of preferable technical scheme of the present invention, the mol ratio of the anhydrous organic acid and the organic polyamine is 1:
0.9~1:2.5.
As a kind of preferable technical scheme of the present invention, the mol ratio of the anhydrous organic acid and the organic polyamine is 1:
1.2。
As a kind of preferable technical scheme of the present invention, the mol ratio of the azeotropic agent and anhydrous organic acid is 1:1.
As a kind of preferable technical scheme of the present invention, the base catalyst is sodium hydroxide, potassium hydroxide and three oxygen
Change any one or more in two aluminium.
As a kind of preferable technical scheme of the present invention, the solvent be methanol, ethanol, propyl alcohol, n-butanol, isobutanol,
Any one or more in neopentyl alcohol, isopropanol, benzene, toluene, ortho-xylene, meta-xylene, paraxylene.
As a kind of preferable technical scheme of the present invention, the benzothiazole analog derivative be 6- hydroxyls -5,7- dimethyl -
2- (3- pyridylmethyls) aminobenzothiazole, 6- hydroxyls -4,5,7- trimethyls -2- (3- pyridylmethyls) amino benzo thiophene
Azoles, 6- hydroxyl -4,7- dimethyl -2- (3- pyridylmethyls) aminobenzothiazole, 2- ethylamino -6- hydroxyls -4,7- dimethyl -
5- (3- pyridylmethyls) benzothiazole, 6- hydroxyl -5,7- dimethyl -2- methylaminos -4- (3- pyridylmethyls) benzo thiophene
Azoles, 2- ethylamino -6- hydroxyl -4,5- dimethyl -7- (3- pyridylmethyls) benzothiazole, 2- hydroxybenzothiazoles, 5- hydroxyls
Benzothiazole, 6- hydroxybenzothiazoles, 7- hydroxybenzothiazoles, 8- hydroxybenzothiazoles, 5- hydroxy-2-methyls benzothiazole,
5- amino-2-methyl -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles, the mercaptobenzothiazoler of 5- hydroxyls -2,2- cyanogen
Base -6- hydroxybenzothiazoles, 2- amino -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles, 4- methyl -6- hydroxy benzenes
And thiazole, 5- amino-2-methyl -6- hydroxybenzothiazoles etc..
As a kind of preferable technical scheme of the present invention, the benzothiazole analog derivative is 2- hydroxybenzothiazoles, 5-
Hydroxybenzothiazole, 6- hydroxybenzothiazoles, 7- hydroxybenzothiazoles, 8- hydroxybenzothiazoles, 2- amino -6- hydroxy benzo thiophenes
Azoles, 5- hydroxy-2-methyls benzothiazole, 5- amino-2-methyl -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles,
One or more of mixing in the mercaptobenzothiazoler of 5- hydroxyls -2.
As a kind of preferable technical scheme of the present invention, the benzothiazole analog derivative is 2- amino -6- hydroxy benzos
Thiazole.
The second aspect of the invention provides the preparation method of sulfur resistive high temperature resistant corrosion inhibitor, and it, which is prepared, includes following step
Suddenly：Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation 30min,
Obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
The sulfur resistive high temperature resistant corrosion inhibitor of the present invention has the advantages that：
Sulfur resistive high temperature resistant corrosion inhibitor in the present invention, which has good corrosion inhibition under 180 DEG C of high temperature and continues inhibition, imitates
Rate.After testing, at 180 DEG C, steel disc is placed on when corroding 48 hours in corrosive medium, the inhibition efficiency of corrosion inhibiter of the invention
Up to 93.8.%；When steel disc is small through 336 under 180 DEG C of high temperature during corrosion in (two weeks), the inhibition effect of corrosion inhibiter of the present invention
Rate is still up to 91.1%.
Embodiment
Participate in the election of the detailed description of the invention below for being preferable to carry out method and including embodiment this hair can be more easily understood
Bright content.Unless otherwise defined, all technologies used herein and scientific terminology have common with art of the present invention
The identical implication that technical staff is generally understood that.When contradiction be present, the definition in this specification is defined.
As used herein term " by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " comprising ",
" having ", " containing " or its any other deformation, it is intended that cover including for non-exclusionism.For example, the combination comprising listed elements
Thing, step, method, product or device are not necessarily limited to those key elements, but can include not expressly listed other key elements or
Such a composition, step, method, product or the intrinsic key element of device.
Conjunction " Consists of " excludes any key element do not pointed out, step or component.If be used in claim, this
Phrase will make claim be closed, it is not included the material in addition to the material of those descriptions, but relative normal
Except rule impurity.When being rather than immediately following in the clause that phrase " Consists of " appears in claim main body after theme,
It is only limited to the key element described in the clause；Other key elements are not excluded outside the claim as entirety.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value limits, this, which is appreciated that, specifically discloses by any range limit or preferred value and any scope
All scopes that any pairing of lower limit or preferred value is formed, regardless of whether the scope separately discloses.For example, when open
During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope is intended to include its end
Value and all integers and fraction within the range.
Singulative includes plural number and object is discussed, unless the context clearly dictates otherwise." optional " or it is " any
It is a kind of " refer to that the item that describes thereafter or event may or may not occur, and the description include situation that event occurs and
The situation that event does not occur.
Approximate term in specification and claims is used for modifying quantity, and it is specific to represent that the present invention is not limited to this
Quantity, include the part of the amendment of the acceptable change without cause related basic function close to the quantity.Phase
Answer, modify a numerical value with " about ", " about " etc., mean that the invention is not restricted to the exact numerical.It is approximate in some examples
Term likely corresponds to the precision of the instrument of measured value.In present specification and claims, scope limits can be with
Combine and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
In addition, indefinite article " one kind " before key element of the present invention or component and "one" to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore "one" or " one kind " should be read as including one or at least one, and odd number
The key element or component of form also include plural form, unless the obvious purport of the quantity refers to singulative.
In order to solve the above-mentioned technical problem, the first aspect of the invention provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, with
Parts by weight meter, including at least following component：
The base catalyst is alkaline hydrated oxide；The solvent is alcohols and the mixture of benzene or its homologue.
Wherein, imidazolines have excellent corrosion inhibiting ability in acid medium, be widely used in reduce oil,
CO in gas industry2Caused by corrosion.The imidazolines of the present invention preferably comprise the imidazoline of organosiloxane base,
Its principle is that organosiloxane base is non-polar alkane chain, and in Corrosion Inhibition, organosiloxane base deviates from metal, in metal watch
Face forms a tunic, so as to which isolating metal contacts with corrosive medium, protects metal not to be corroded.
Wherein, benzothiazole analog derivative has nitrogenous polarity gene, can be by metallic surface charge adsorption, so as in gold
Metal surface forms one layer of monomolecular film, so as to prevent or slow down corrosion of metal.In a preferred embodiment, the benzene
And thiazole derivative is hydroxybenzothiazole analog derivative.
In a preferred embodiment, the benzothiazole analog derivative is 6- hydroxyl -5,7- dimethyl -2- (3-
Pyridylmethyl) aminobenzothiazole, 6- hydroxyls -4,5,7- trimethyls -2- (3- pyridylmethyls) aminobenzothiazole, 6- hydroxyls
Base -4,7- dimethyl -2- (3- pyridylmethyls) aminobenzothiazole, 2- ethylamino -6- hydroxyl -4,7- dimethyl -5- (3- pyrroles
Piperidinyl methyl) benzothiazole, 6- hydroxyl -5,7- dimethyl -2- methylaminos -4- (3- pyridylmethyls) benzothiazole, 2- second
Amino -6- hydroxyl -4,5- dimethyl -7- (3- pyridylmethyls) benzothiazole, 2- hydroxybenzothiazoles, 5- hydroxy benzo thiophenes
Azoles, 6- hydroxybenzothiazoles, 7- hydroxybenzothiazoles, 8- hydroxybenzothiazoles, 5- hydroxy-2-methyls benzothiazole, 5- amino-
2- methyl -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles, the mercaptobenzothiazoler of 5- hydroxyls -2,2- cyano group -6- hydroxyls
Base benzothiazole, 2- amino -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles, 4- methyl -6- hydroxybenzothiazoles,
5- amino-2-methyl -6- hydroxybenzothiazoles etc..
In a preferred embodiment, the benzothiazole analog derivative is 2- hydroxybenzothiazoles, 5- hydroxy benzenes
And thiazole, 6- hydroxybenzothiazoles, 7- hydroxybenzothiazoles, 8- hydroxybenzothiazoles, 2- amino -6- hydroxybenzothiazoles, 5-
Hydroxy-2-methyl benzothiazole, 5- amino-2-methyl -6- hydroxybenzothiazoles, 2- methyl -6- hydroxybenzothiazoles, 5- hydroxyls
One or more of mixing in the mercaptobenzothiazoler of base -2.
In a preferred embodiment, the benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles.
The base catalyst of the present invention is that itself has alkalescence, and can play the material of base catalysis, and its species is not limited to
Comprise only material hydroxy.It, by receiving proton or providing electronics to effect, is formed active between reactant molecule
The progress of carbanion intermediate compound, then catalytic reaction.In addition, the base catalyst in the present invention improves corrosion inhibiter each group
Mixing between point, suppress the hydrolysis for the imidazolines that corrosion inhibiter contains organosilicon radical in storage and cause corrosion inhibiter
Film forming is crosslinked during storage too early, influences performance.
In a preferred embodiment, the base catalyst is in sodium hydroxide, potassium hydroxide, alundum (Al2O3)
Any one.
In a preferred embodiment, the solvent be methanol, ethanol, propyl alcohol, n-butanol, isobutanol, neopentyl alcohol,
Any one or more in isopropanol, benzene, toluene, ortho-xylene, meta-xylene, paraxylene.
The inhibition mechanism of sulfur resistive high temperature resistant corrosion inhibitor based on the present invention, and analysis and summary to a large amount of different solvents,
When inventor has found the mixture that solvent is isopropanol and toluene, the corrosion inhibition of sulfur resistive high temperature resistant corrosion inhibitor of the invention is most
It is good.
In a preferred embodiment, the solvent is the mixture of isopropanol and toluene.
In a preferred embodiment, organic siloxane group is contained in the imidazolines.
In a preferred embodiment, the preparation reaction of the imidazolines comprises at least following steps：
At 50 DEG C, by anhydrous organic acid and organic polyamine according to 1:0.9~1:2.5 molar ratio, which is added to, is connected to the three of water knockout drum
In mouth flask, adding azeotropic agent, (molar ratio of azeotropic agent and anhydrous organic acid is 1:1), it is stirred at reflux 30 minutes, makes system
It is completely in molten state；Then heat up and be dehydrated according to three phases, it is small that first stage system is warming up to 140 DEG C of reactions 3~5
When；Second stage system is warming up to 165 DEG C and reacted 2 hours；Phase III system, which heats up 180 DEG C, reacts 3~5 hours, then will
Reactant is cooled to 100 DEG C, and toluene is distilled off, and by system cooling discharging at room temperature, produces product.Its reaction equation is such as
Under：
Wherein：R1For the nonpolar alkyl chain part of organic carboxyl acid, R2For function functional group, such as：
It is dehydrated in the present invention using interim heating, is advantageous to control the reaction rate between carboxyl and amino.Work as dehydration
Reaction causes dehydration incomplete when being all within first stage progress, and a large amount of unreacted monomers are remained in system；And work as
When carrying out the phase III because reaction rate is too fast, caused water has little time to take system out of by azeotropic agent course of reaction whole process
It is interior, and the water stayed in system promotes the hydrolysis of organosilicon radical at high temperature, causes system to be crosslinked, and prevents reaction from carrying out.This
Outside, the reactivity of carboxyl and primary amine is higher than reactivity with secondary amine, and reaction is whole, and carry out at an excessive temperature may also can
Carboxyl is caused to be reacted while with primary amine reaction with secondary amine, the product structure finally given is not the knot of imidazoline
Structure, influence corrosion inhibition.
In a preferred embodiment, the organic polyamine is selected from diethylenetriamine, triethylene tetramine, four ethene five
Amine, pentaethylene hexamine, (aminoethylamino) -3- isobutyl groups dimethyl methoxy silane, (aminoethylaminomethyl) benzene second
Base trimethoxy silane, diethylenetriamine base propyl trimethoxy silicane, N- (2- aminoethyls) -3- aminopropyl trimethoxy silicon
The mixing of any one or more in alkane, [2- [[3- (trimethoxy silane base) propyl group] amino] ethyl] urea.
In a preferred embodiment, the organic polyamine is selected from (aminoethylamino) -3- isobutyl group dimethyl
Methoxy silane, (aminoethylaminomethyl) phenethyl trimethoxy silane, diethylenetriamine base propyl trimethoxy silicane,
In N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes, [2- [[3- (trimethoxy silane base) propyl group] amino] ethyl] urea
The mixing of any one or more.
In a preferred embodiment, the organic polyamine be selected from diethylenetriamine base propyl trimethoxy silicane or
N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
In a preferred embodiment, the anhydrous organic acid for C2~C18 carbochains saturated fatty acid and C2~
The mixing of any one or more in the unrighted acid of C18 carbochains.
In a preferred embodiment, the anhydrous organic acid is oleic acid or capric acid.
Suitable aliphatic acid is selected, the length of apolar chain on imidazoline structure is controlled, is not influenceing corrosion inhibiter dissolubility
While make as much as possible metal surface formed adsorbed film thicken, improve the inhibition efficiency of corrosion inhibiter.
In a preferred embodiment, the mol ratio of the anhydrous organic acid and the organic polyamine is 1:0.9~
1:2.5。
In a preferred embodiment, the mol ratio of the anhydrous organic acid and the organic polyamine is 1:1.2.
In a preferred embodiment, the mol ratio of the azeotropic agent and anhydrous organic acid is 1:1.
The sulfur resistive high temperature resistant corrosion inhibitor of the present invention, its inhibition principle are：Suitable aliphatic acid is selected, controls imidazoline knot
The length of apolar chain on structure, do not influence corrosion inhibiter it is deliquescent and meanwhile make as far as possible metal surface formed adsorbed film
Thicken, improve the inhibition efficiency of corrosion inhibiter.N atoms on polarity O, S, N atom and imidazoline on hydroxy benzo thiophene etc.
Intermolecular hydrogen bonding effect occurs with the hydroxyl on solvent, improves the dissolubility between corrosion inhibiter each component；Secondly, the imidazoles on thiophene
N atoms on O, S atom and imidazoline on quinoline produce hydrogen bond action, increase the viscosity of corrosion inhibiter, enhance under hot conditions
Adsorption effect in metal surface；In addition the hydrogen bond action consumption portion of energy between thiophene and imidazoline, increases imidazoline hydrolysis
Required energy, improve its hydrolysis temperature.Organosiloxane on imidazoline side chain is when having water and sour gas, it may occur that water
Solution protection imidazoline adsorbed film, improves heat resistance and corrosion mitigating effect.In anhydrous and no acidic media environment in imidazoline structure
Organosiloxane structural act on as nonpolar aliphatic chain, into one layer of hydrophobic membrane, and can be sent out when having water and acid medium
Unboiled water solution, the spacial framework of crosslinking is formed, one layer of fine and close diaphragm is formed on corrosion inhibiter surface, equivalent in metal watch
Face forms the second tunic, further prevents metal to be corroded, and strengthens corrosion inhibition.
Second aspect of the present invention provides the preparation method of sulfur resistive high temperature resistant corrosion inhibitor, including at least following steps：Will
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation 30min, is glued
Thick, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
The present invention is specifically described below by embodiment.It is necessarily pointed out that following examples are only used
In the invention will be further described, it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field
Some the nonessential modifications and adaptations made according to the content of the invention described above, still fall within protection scope of the present invention.
In addition, if without other explanations, it is raw materials used be all it is commercially available, be purchased from traditional Chinese medicines chemical reagent.
Embodiment
Embodiment 1：
Embodiment 1 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.25mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 2
Embodiment 2 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.25mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 3
Embodiment 3 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.25mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 4
Embodiment 4 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.25mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 5
Embodiment 5 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.30mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 6
Embodiment 6 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol capric acid and 0.25mol diethylenetriamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 7
Embodiment 7 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.25mol N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes are added
To being connected in the three-necked flask of water knockout drum, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in fusing shape
State；Then heat up and be dehydrated according to three phases, first stage system is warming up to 140 DEG C and reacted 4 hours；Second stage system heats up
Reacted 2 hours to 165 DEG C；Phase III system, which heats up 180 DEG C, reacts 4 hours, oozes now, will react when anhydrous in condenser pipe
Thing is cooled to 100 DEG C, and toluene is distilled off, and by system cooling discharging at room temperature, produces imidazolines.
N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes CAS are 1760243, Chinese medicines group chemical reagent
Co., Ltd provides.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 8
Embodiment 8 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.30mol N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes are added
To being connected in the three-necked flask of water knockout drum, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in fusing shape
State；Then heat up and be dehydrated according to three phases, first stage system is warming up to 140 DEG C and reacted 4 hours；Second stage system heats up
Reacted 2 hours to 165 DEG C；Phase III system, which heats up 180 DEG C, reacts 4 hours, oozes now, will react when anhydrous in condenser pipe
Thing is cooled to 100 DEG C, and toluene is distilled off, and by system cooling discharging at room temperature, produces imidazolines.
N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes CAS are 1760243, Chinese medicines group chemical reagent
Co., Ltd provides.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 9
Embodiment 9 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid is added to 0.25mol diethylenetriamine base propyl trimethoxy silicanes and is connected to
In the three-necked flask of water knockout drum, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then
Heat up and be dehydrated according to three phases, first stage system is warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C
Reaction 2 hours；Phase III system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled down
To 100 DEG C, toluene is distilled off, by system cooling discharging at room temperature, produces imidazolines.
The diethylenetriamine base propyl trimethoxy silicane CAS is 35141301, the limited public affairs of the happy industry of Shanghai Jin Jin
Department provides.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 10
Embodiment 10 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is isopropanol and toluene by volume 3:The mixture of 1 mixing；
The benzothiazole analog derivative is 2- amino -6- hydroxybenzothiazoles, and No. CAS is 26278795, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid is added to 0.30mol diethylenetriamine base propyl trimethoxy silicanes and is connected to
In the three-necked flask of water knockout drum, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then
Heat up and be dehydrated according to three phases, first stage system is warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C
Reaction 2 hours；Phase III system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled down
To 100 DEG C, toluene is distilled off, by system cooling discharging at room temperature, produces imidazolines.
The diethylenetriamine base propyl trimethoxy silicane CAS is 35141301, the limited public affairs of the happy industry of Shanghai Jin Jin
Department provides.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 11
Embodiment 11 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is alundum (Al2O3)；
The solvent is methanol, and ortho-xylene is 1 by volume：The mixture of 1 mixing；
The benzothiazole analog derivative is 6- hydroxybenzothiazoles, and No. CAS is 13599843, and Beijing lark prestige science and technology has
Limit company provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.30mol triethylene tetramines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The triethylene tetramine CAS is 112243.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 12
Embodiment 12 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is potassium hydroxide；
The solvent is n-butanol；
The benzothiazole analog derivative is 5- hydroxyls -2-mercaptobenzothiazole, and No. CAS is 71216201, Beijing lark
Prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, by 0.25mol benzoic acid and 0.30mol N- [2- [[3- [(trimethoxy silane base) propyl group] ammonia
Base] ethyl] urea is added in the three-necked flask for being connected to water knockout drum, and add 0.25mol toluene and be stirred at reflux 30 minutes, make system complete
It is in molten state entirely；Then heat up and be dehydrated according to three phases, first stage system is warming up to 140 DEG C and reacted 4 hours；Second
Stage system is warming up to 165 DEG C and reacted 2 hours；Phase III system heat up 180 DEG C react 4 hours, when in condenser pipe without water droplet
During appearance, reactant is cooled to 100 DEG C, toluene is distilled off, by system cooling discharging at room temperature, produce imidazolines chemical combination
Thing.
[No. CAS of 2- [[3- [(trimethoxy silane base) propyl group] amino] ethyl] urea is 67674593 to the N-.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Embodiment 13
Embodiment 13 provides a kind of sulfur resistive high temperature resistant corrosion inhibitor, in parts by weight, including at least following component：
The base catalyst is sodium hydroxide；
The solvent is ethanol, and toluene is 3 by volume:The mixture of 1 mixing；
The benzothiazole analog derivative is 5- amino-2-methyl -6- hydroxybenzothiazoles, and No. CAS is 99584084, north
Capital lark prestige Science and Technology Ltd. provides.
The preparation method of the imidazolines, comprises the following steps：
At 50 DEG C, 0.25mol oleic acid and 0.30mol pentaethylene hexamines are added to the three-necked flask for being connected to water knockout drum
In, add 0.25mol toluene and be stirred at reflux 30 minutes, system is completely in molten state；Then heated up according to three phases
Dehydration, first stage system are warming up to 140 DEG C and reacted 4 hours；Second stage system is warming up to 165 DEG C and reacted 2 hours；3rd rank
Segment body system, which heats up 180 DEG C, reacts 4 hours, is oozed now when anhydrous in condenser pipe, reactant is cooled into 100 DEG C, is distilled off
Toluene, by system cooling discharging at room temperature, produce imidazolines.
The pentaethylene hexamine CAS is 4067167.
The preparation method of sulfur resistive high temperature resistant corrosion inhibitor, comprises the following steps：
Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, mechanical agitation
30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
Performance evaluation
The assay method of corrosion inhibition rate is calculated by normal pressure static etch rate, will to evaluate the corrosion mitigating effect of corrosion inhibiter
The metal testing plate weighed be linked into respectively plus and not plus corrosion inhibiter corrosive medium in and be passed through etchant gas, in rated condition
Under be dipped into the regular hour, then take out test piece, weighed after cleaned drying process, counted respectively according to the mass loss of test piece
Calculate average corrosion rate and corrosion inhibition rate.According to standard GB/T/10124-88 in experimentation《Metal material laboratory is uniform
Corrosion tests》, CNPC professional standard SY/T 5273-2000《Water corrosion inhibiter assessment method is used in oil extraction》For ginseng
Examine standard execution.Year corrosion rate rcorrExpression formula with corrosion inhibition rate η is respectively：
In formula：rcorr- uniform corrosion rate, unit：Mm/；
Steel disc quality before m-experiment, unit：g；
mtSteel disc quality after-experiment, unit：g；
S-experiment steel disc total surface area, unit：cm2；
The density of ρ-experiment steel disc, unit：g/cm3；
T-experimental period, unit：h.
In formula, η-corrosion inhibition rate, %；
△m1The mass loss of steel disc, unit in-blank test：g；
△m2- plus corrosion inhibiter experiment in steel disc mass loss, unit：g.
In corrosion test corrosive medium be 5% Klorvess Liquid and acetic acid, pH value 3.It is passed through during corrosion experiment
Hybrid corrosion gas containing 7.8% hydrogen sulfide, 7.0% carbon dioxide, 84.5% methane and 0.74% ethane.Corrosion inhibiter is dense
It is 80 DEG C and 180 DEG C to spend for 80mg/L, test temperature, takes out test piece afterwards in 48 (one week) hours and 336 hours (two weeks) respectively
Test quality.
The corrosion inhibiter performance characterization of table 1 is tested
As can be seen from Table 1, the sulfur resistive high temperature resistant corrosion inhibitor in the present invention has good rust inhibition under 180 DEG C of high temperature
Can, inhibition efficiency is up to 93.8.%.Continue inhibition efficiency well in addition, having under 180 DEG C of high temperature, by 336 hours
The inhibition efficiency of (two weeks) corrosion inhibiter is still up to 91.1%.
Foregoing example is merely illustrative, for explaining some features of the method for the invention.Appended right will
Ask and be intended to require the scope as wide as possible being contemplated that, and embodiments as presented herein is only according to all possible implementation
The explanation of the embodiment of the selection of the combination of example.Therefore, the purpose of applicant is that appended claim is not illustrated this hair
The selectional restriction of the example of bright feature.Some number ranges used also include sub- model within the claims
Enclose, the change in these scopes should be also construed to by appended claim covering in the conceived case.
Claims (13)
- A kind of 1. sulfur resistive high temperature resistant corrosion inhibitor, it is characterised in that the corrosion inhibiter in parts by weight, including at least following component：The base catalyst is alkaline hydrated oxide；The solvent is alcohols and the mixture of benzene or its homologue.
- 2. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 1, it is characterised in that have in the imidazolines Organic siloxane group.
- 3. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 1, it is characterised in that preparing for the imidazolines is anti- Step is answered to include：Under azeotropic agent promotion, anhydrous organic acid and organic polyamine stirring, it is heated to reflux, 140 DEG C~180 DEG C of bar 8~12 hours are reacted under part, system is then cooled to 100 DEG C, toluene is distilled off and obtains product.
- 4. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 3, it is characterised in that the organic polyamine is (amino-ethyl ammonia Base) -3- isobutyl groups dimethyl methoxy silane, aminoethylaminoisobutyl methyl dimethoxysilane, (aminoethylamino Methyl) phenethyl trimethoxy silane, N- aminoethyl -3- aminopropyltriethoxies dimethoxysilane, diethylenetriamine base propyl group three Methoxy silane, N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes, [2- [[3- (trimethoxy silane base) propyl group] ammonia Base] ethyl] mixing of any one or more in urea.
- 5. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 4, it is characterised in that the organic polyamine is diethylenetriamine base Propyl trimethoxy silicane or N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
- 6. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 3, it is characterised in that the anhydrous organic acid is C2~C18 carbon The mixing of any one or more in the saturated fatty acid of chain and the unrighted acid of C2~C18 carbochains.
- 7. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 6, it is characterised in that the anhydrous organic acid is oleic acid or the last of the ten Heavenly stems Acid.
- 8. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 3, it is characterised in that the anhydrous organic acid and described organic more The mol ratio of amine is 1:0.9~1:2.5.
- 9. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 8, it is characterised in that the anhydrous organic acid and described organic more The mol ratio of amine is 1:1.2.
- 10. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 3, it is characterised in that the azeotropic agent and anhydrous organic acid Mol ratio is 1:1.
- 11. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 1, it is characterised in that the base catalyst be sodium hydroxide, Any one or more in potassium hydroxide and alundum (Al2O3).
- 12. sulfur resistive high temperature resistant corrosion inhibitor as claimed in claim 1, it is characterised in that the solvent be methanol, ethanol, propyl alcohol, In n-butanol, isobutanol, neopentyl alcohol, isopropanol, benzene, toluene, ortho-xylene, meta-xylene, paraxylene any one or It is a variety of.
- 13. the preparation method of the sulfur resistive high temperature resistant corrosion inhibitor as described in claim 1~12 any one, it is characterised in that its Preparation comprises the following steps：Sulfur resistive high temperature resistant corrosion inhibitor each component is added sequentially in three-necked flask by defined parts by weight, Mechanical agitation 30min, obtain sticky, not stratified liquid, i.e. sulfur resistive high temperature resistant corrosion inhibitor.
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| CN108504343A (en) * | 2018-05-09 | 2018-09-07 | 西安瑞杰油田物资实业开发有限公司 | A kind of sulfur resistive corrosion inhibiter and preparation method thereof |
| CN111154470A (en) * | 2020-02-21 | 2020-05-15 | 四川振邦石油科技有限公司 | Slow-release solid corrosion inhibitor, preparation method and application |
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| CN104762624A (en) * | 2015-04-08 | 2015-07-08 | 宜兴市中大凯化工有限公司 | High-temperature corrosion inhibitor for atmospheric and vacuum distillation unit |
| CN105734587A (en) * | 2014-12-06 | 2016-07-06 | 中国石油化工股份有限公司 | Novel macro-molecular corrosion inhibitor and preparation method thereof |
| CN106467730A (en) * | 2016-08-27 | 2017-03-01 | 威海翔宇环保科技股份有限公司 | A kind of special corrosion agent being applied to oil field water process |
| CN107190265A (en) * | 2017-05-09 | 2017-09-22 | 天津正达科技有限责任公司 | A kind of compound imidazoline inhibitor and preparation method thereof |
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| CN105734587A (en) * | 2014-12-06 | 2016-07-06 | 中国石油化工股份有限公司 | Novel macro-molecular corrosion inhibitor and preparation method thereof |
| CN104762624A (en) * | 2015-04-08 | 2015-07-08 | 宜兴市中大凯化工有限公司 | High-temperature corrosion inhibitor for atmospheric and vacuum distillation unit |
| CN106467730A (en) * | 2016-08-27 | 2017-03-01 | 威海翔宇环保科技股份有限公司 | A kind of special corrosion agent being applied to oil field water process |
| CN107190265A (en) * | 2017-05-09 | 2017-09-22 | 天津正达科技有限责任公司 | A kind of compound imidazoline inhibitor and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108504343A (en) * | 2018-05-09 | 2018-09-07 | 西安瑞杰油田物资实业开发有限公司 | A kind of sulfur resistive corrosion inhibiter and preparation method thereof |
| CN111154470A (en) * | 2020-02-21 | 2020-05-15 | 四川振邦石油科技有限公司 | Slow-release solid corrosion inhibitor, preparation method and application |
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