CN107574447A - Phosphoric acid restrainer and preparation method thereof - Google Patents
Phosphoric acid restrainer and preparation method thereof Download PDFInfo
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- CN107574447A CN107574447A CN201710679778.3A CN201710679778A CN107574447A CN 107574447 A CN107574447 A CN 107574447A CN 201710679778 A CN201710679778 A CN 201710679778A CN 107574447 A CN107574447 A CN 107574447A
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- quaternary ammonium
- ammonium salt
- phosphoric acid
- phenylpropyl alcohol
- imidazoline quaternary
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Abstract
The present invention provides a kind of phosphoric acid restrainer and preparation method thereof, and phosphoric acid restrainer includes the component of following parts by weight：2 15 parts of imidazoline quaternary ammonium salt, 2 10 parts of methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt, 05 parts of surfactant, 70 96 parts of solvent；The imidazoline quaternary ammonium salt is the mixture of tung oil imidazoline quaternary ammonium salt and rosin imidazoline quaternary ammonium salt.Inventing the phosphoric acid restrainer provided can be during phosphoric acid carries out pickling to metallic matrix, a certain degree of suppression Fe3+Corrosion to metallic matrix.
Description
Technical field
The present invention relates to pickling inhibiter technology, more particularly to a kind of phosphoric acid restrainer and preparation method thereof, category
In technical field of metal anti-corrosion.
Background technology
Acid pickling and rust removing, the method to descale are the methods that industrial circle is most widely used.It is molten to oxide using acid
The mechanical stripping effect that solution and corrosion produce hydrogen reaches derusting and the purpose to descale.Using most commonly seen in pickling
It is hydrochloric acid, sulfuric acid, phosphoric acid, and because phosphoric acid will not produce corrosive, therefore relatively safety in pickling.But in phosphorus
In sour acid cleaning process, acid solution has a large amount of Fe while oxidation on metal surface thing is removed3+And Fe2+Into acid solution, Fe2+With sky
Gas contact easily generation Fe3+, Fe3+Presence can seriously aggravate the corrosion of metallic matrix, and most of conventional resistance to Fe of corrosion inhibiter3+It is rotten
Erosion is weaker, is there is a large amount of Fe3+In the presence of, corrosion inhibiter corrosion inhibition dramatic decrease, do not reach corrosion mitigating effect.Therefore, develop new
Resistance to Fe3+The phosphoric acid restrainer of corrosion has important practical value.
The content of the invention
For drawbacks described above, the present invention provides a kind of phosphoric acid restrainer and preparation method thereof, and the corrosion inhibiter can be
During phosphoric acid carries out pickling to metallic matrix, a certain degree of suppression Fe3+Corrosion to metallic matrix.
The present invention provides a kind of phosphoric acid restrainer, includes the component of following parts by weight：Imidazoline quaternary ammonium salt 2-15 parts,
Methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt 2-10 parts, surfactant 0-5 parts, solvent 70-96 parts；Wherein, the imidazoles
Hyamine is the mixture of tung oil imidazoline quaternary ammonium salt and rosin imidazoline quaternary ammonium salt, the tung oil imidazoline quaternary ammonium salt such as formula
(1) shown in, shown in the rosin imidazoline quaternary ammonium salt such as formula (2), the methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt such as formula
(3) shown in,
In above-mentioned phosphoric acid restrainer, imidazoline quaternary ammonium salt and methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt are phosphorus
The active ingredient of sour restrainer.
In the embodiment of the present invention, the imidazoline quaternary ammonium salt is prepared in accordance with the following steps：
1) under stirring, by tung oil and water using mol ratio as 10:1 mixing, after 100 DEG C are incubated 1h, add rosin, diformazan
Benzene, 140 DEG C are warming up to, generate the first mixture；The mol ratio of wherein described rosin, dimethylbenzene and tung oil is 3：(10-15)：1；
2) under nitrogen atmosphere protection, diethylenetriamine is added dropwise into first mixture, reacts 3h at 140-150 DEG C
Afterwards, 180 DEG C of reaction 2h are warming up to, 210 DEG C of reaction 5h is then warming up to again, generates intermediate；Wherein, the rosin and divinyl
The mol ratio of triamine is 1：(2.4-3.2)；
3) 90 DEG C are cooled to, benzyl chloride is added to the intermediate, reacts 4h, obtain the imidazoline quaternary ammonium salt；Wherein,
The mol ratio of the rosin and benzyl chloride is 1：(1.0-1.5).
It is worth noting that, above-mentioned imidazoline quaternary ammonium salt preparation method of the invention can divide in same reaction system
Not Zhi get tung oil imidazoline quaternary ammonium salt and rosin imidazoline quaternary ammonium salt, the two reactions are independent of each other simultaneously, so as to directly
Obtain the imidazoline quaternary ammonium salt of the present invention.During specific preparation, stainless steel cauldron can be used to carry out.
Wherein, the reaction equation of tung oil imidazoline quaternary ammonium salt is as follows：
Wherein, the reaction equation of rosin imidazoline quaternary ammonium salt is as follows：
In the embodiment of the present invention, the methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt is according to following step
It is rapid to prepare：
Under stirring, by methyl phenylpropyl alcohol triazole and dimethylamine using mol ratio as 1:1 mixes, and after regulation pH value to 3-5, adds
Formalin, 60 DEG C of reaction 6h are warming up to, then add benzyl chloride, continues to react 4h after being warming up to 90 DEG C, obtains the base benzene
Third triazole Mannich base quaternary ammonium salt；
Wherein, the methyl phenylpropyl alcohol triazole and the mol ratio of formaldehyde are 1：(1.3-1.6), the base phenylpropyl alcohol triazole with
The mol ratio of benzyl chloride is 1：(0.6-0.85).During specific preparation, stainless steel cauldron can be used to carry out.
The reaction equation of methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt is as follows：
In the embodiment of the present invention, in step 2), a length of 2h when controlling the dropwise addition of the diethylenetriamine
Within.
In the embodiment of the present invention, pH value is adjusted to 3- using the aqueous hydrochloric acid solution that mass concentration is 30%
5。
In the embodiment of the present invention, the mass content of formaldehyde is 40% in the formalin.
In the embodiment of the present invention, the surfactant is Tween-20 or OP-10.
In the embodiment of the present invention, the solvent is dimethylformamide or dimethylformamide and two
The mixture of methyl sulfoxide.That is, solvent selection dimethylformamide or the mixture of dimethylformamide and dimethyl sulfoxide (DMSO).
The present invention also provides a kind of preparation method of any of the above-described described phosphoric acid restrainer, by the imidazoline season
Ammonium salt, methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt, surfactant, solvent mixing, are made the phosphoric acid restrainer.
The preparation method of the present invention is simple to operation, is assisted without large scale equipment.
The phosphoric acid restrainer of the present invention is containing Fe3+In concentration≤10000mg/L 15% phosphoric acid solution, at 50 DEG C
3g/m is respectively less than to the corrosion rate of A3 steel2.h, solves A3 steel well containing Fe3+Etching problem in phosphoric acid solution.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiments of the invention, to this
Technical scheme in inventive embodiments is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Apply example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
Embodiment 1
The preparation of imidazoline quaternary ammonium salt
Tung oil 29.8g, water 0.6g, 100 DEG C of insulation 1h are warming up to after mixing, add rosin 33.7g, 80g dimethylbenzene, heating
To 140 DEG C, 33g diethylenetriamines are gradually added into, are heated to 150 DEG C of reaction 3h, 180 DEG C of reaction 2h is heated to, is heated to 210 DEG C
5h is reacted, 90 DEG C of addition 27.6g benzyl chlorides is cooled to, reacts 4h, that is, obtain imidazoline quaternary ammonium salt.
Embodiment 2
The preparation of methyl benzotriazazole Mannich base quaternary ammonium salt
Methyl phenylpropyl alcohol triazole 22.6g, dimethylamine (33% mass concentration) 27.7g, being gradually added into hydrochloric acid, (30% mass is dense
Degree) pH value is adjusted to 15g formalins (40% mass concentration) between 3-5, are then slowly added into, it is small to be heated to 60 DEG C of reactions 6
When, 20.2g benzyl chlorides are then added, 90 DEG C is warming up to and reacts 4 hours, that is, obtain methyl benzotriazazole Mannich base quaternary ammonium
Salt.
Embodiment 3
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 8kg imidazoline quaternary ammonium salts, 2kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 50kg dimethyl formyls
Amine, 37kg dimethyl sulfoxide (DMSO)s and 3kg Tween-20s are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 0ppm, and corrosion inhibition test is carried out using static steel weight-loss method,
Length of testing speech is 2h, and after testing, at 50 DEG C, the corrosion rate of A3 steel is 0.41g/m2.h。
Embodiment 4
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 7kg imidazoline quaternary ammonium salts, 3kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 40kg dimethyl formyls
Amine, 48kg dimethyl sulfoxide (DMSO)s and 2kg OP-10 are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 0mg/L, and corrosion inhibition test is carried out using static steel weight-loss method,
Length of testing speech is 2h, and after testing, at 50 DEG C, the corrosion rate of A3 steel is 0.35g/m2.h。
Embodiment 5
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 6kg imidazoline quaternary ammonium salts, 4kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 36kg dimethyl formyls
Amine, 46kg dimethyl sulfoxide (DMSO)s and 4kg Tween-20s are mixed and made into the corrosion inhibiter containing 14kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 0mg/L, and corrosion inhibition test is carried out using static steel weight-loss method,
Length of testing speech is 2h, and after testing, the corrosion rate of A3 steel is 0.26g/m at 50 DEG C2.h。
Embodiment 6
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 8kg imidazoline quaternary ammonium salts, 2kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 90kg dimethyl formyls
Amine is mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 500mg/L, and corrosion inhibition survey is carried out using static steel weight-loss method
Examination, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 0.93g/m at 50 DEG C2.h。
Embodiment 7
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 8kg imidazoline quaternary ammonium salts, 2kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 50kg dimethyl formyls
Amine, 37kg dimethyl sulfoxide (DMSO)s and 3kg OP-10 are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 1000mg/L, and corrosion inhibition survey is carried out using static steel weight-loss method
Examination, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 1.37g/m at 50 DEG C2.h。
Embodiment 8
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 5kg imidazoline quaternary ammonium salts, 5kg methyl benzotriazazole season Mannich base quaternary ammonium salts, with 30kg dimethyl methyls
Acid amides, 55kg dimethyl sulfoxide (DMSO)s and 5kg Tween-20s are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 5000mg/L, and corrosion inhibition survey is carried out using static steel weight-loss method
Examination, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 1.15g/m at 50 DEG C2.h。
Embodiment 9
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 2kg imidazoline quaternary ammonium salts, 8kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 30kg dimethyl formyls
Amine, 55kg dimethyl sulfoxide (DMSO)s and 5kg Tween-20s are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 5000mg/L, and corrosion inhibition survey is carried out using static steel weight-loss method
Examination, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 1.68g/m at 50 DEG C2.h。
Embodiment 10
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 6kg imidazoline quaternary ammonium salts, 4kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 40kg dimethyl formyls
Amine, 46kg dimethyl sulfoxide (DMSO)s and 4kg OP-10 are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 5000mg/L, and corrosion inhibition survey is carried out using static steel weight-loss method
Examination, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 1.02g/m at 50 DEG C2.h。
Embodiment 11
Ratio according to the present invention weighs appropriate tung oil, water, dimethylbenzene, rosin, diethylenetriamine and benzyl chloride, presses
The preparation method for according to the facts applying 1 prepares 10kg imidazoline quaternary ammonium salts.
Ratio according to the present invention weighs appropriate methyl phenylpropyl alcohol triazole, dimethylamine, formaldehyde and benzyl chloride, according to reality
The preparation method for applying 2 prepares 10kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts.
Weigh 6kg imidazoline quaternary ammonium salts, 4kg methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salts, with 45kg dimethyl formyls
Amine, 42 dimethyl sulfoxide (DMSO)s and 3kg Tween-20s are mixed and made into the corrosion inhibiter containing 10kg active ingredients.
Above-mentioned corrosion inhibiter is configured as the corrosion inhibiter aqueous solution that corrosion inhibiter addition is 0.5%, it is 15% to add concentration
Phosphoric acid solution in, the Fe in the phosphoric acid solution3+Content is 10000mg/L, and corrosion inhibition is carried out using static steel weight-loss method
Test, length of testing speech 2h, after testing, the corrosion rate of A3 steel is 2.07g/m at 50 DEG C2.h。
From the testing result of above-described embodiment：The phosphoric acid restrainer of the present invention is containing Fe3+Concentration≤
In 10000mg/L 15% phosphoric acid solution, 3g/m is respectively less than to the corrosion rate of A3 steel at 50 DEG C2.h, solve well
A3 steel is containing Fe3+Etching problem in phosphoric acid solution.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of phosphoric acid restrainer, it is characterised in that include the component of following parts by weight：Imidazoline quaternary ammonium salt 2-15 parts,
Methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt 2-10 parts, surfactant 0-5 parts, solvent 70-96 parts；
Wherein, the imidazoline quaternary ammonium salt is the mixture of tung oil imidazoline quaternary ammonium salt and rosin imidazoline quaternary ammonium salt, the paulownia
Shown in oily imidazoline quaternary ammonium salt such as formula (1), shown in the rosin imidazoline quaternary ammonium salt such as formula (2), the methyl phenylpropyl alcohol triazole
Shown in Mannich base quaternary ammonium salt such as formula (3),
2. phosphoric acid restrainer according to claim 1, it is characterised in that the imidazoline quaternary ammonium salt is according to following step
It is rapid to prepare：
1) under stirring, by tung oil and water using mol ratio as 10:1 mixing, after 100 DEG C are incubated 1h, rosin, dimethylbenzene are added, is risen
Temperature generates the first mixture to 140 DEG C；The mol ratio of wherein described rosin, dimethylbenzene and tung oil is 3：(10-15)：1；
2) under nitrogen atmosphere protection, diethylenetriamine is added dropwise into first mixture, after 140-150 DEG C is reacted 3h,
180 DEG C of reaction 2h are warming up to, 210 DEG C of reaction 5h is then warming up to again, generates intermediate；Wherein, the rosin and divinyl three
The mol ratio of amine is 1：(2.4-3.2)；
3) 90 DEG C are cooled to, benzyl chloride is added to the intermediate, reacts 4h, obtain the imidazoline quaternary ammonium salt；Wherein, it is described
The mol ratio of rosin and benzyl chloride is 1：(1.0-1.5).
3. phosphoric acid restrainer according to claim 2, it is characterised in that the methyl phenylpropyl alcohol triazole Mannich base
Quaternary ammonium salt is prepared in accordance with the following steps：
Under stirring, by methyl phenylpropyl alcohol triazole and dimethylamine using mol ratio as 1:1 mixes, and after regulation pH value to 3-5, adds formaldehyde
Solution, 60 DEG C of reaction 6h are warming up to, then add benzyl chloride, continues to react 4h after being warming up to 90 DEG C, obtains the base phenylpropyl alcohol three
Nitrogen azoles Mannich base quaternary ammonium salt；
Wherein, the methyl phenylpropyl alcohol triazole and the mol ratio of formaldehyde are 1：(1.3-1.6), the base phenylpropyl alcohol triazole and chlorination
The mol ratio of benzyl is 1：(0.6-0.85).
4. phosphoric acid restrainer according to claim 2, it is characterised in that in step 2), control the divinyl three
During the dropwise addition of amine within a length of 2h.
5. phosphoric acid restrainer according to claim 3, it is characterised in that utilize the hydrochloric acid water that mass concentration is 30%
Solution adjusts pH value to 3-5.
6. phosphoric acid restrainer according to claim 5, it is characterised in that the quality of formaldehyde contains in the formalin
Measure as 40%.
7. phosphoric acid restrainer according to claim 1, it is characterised in that the surfactant be Tween-20 or
Person OP-10.
8. phosphoric acid restrainer according to claim 1, it is characterised in that the solvent be dimethylformamide or
The mixture of dimethylformamide and dimethyl sulfoxide (DMSO).
9. the preparation method of any described phosphoric acid restrainers of claim 1-8, it is characterised in that by the imidazoline season
Ammonium salt, methyl phenylpropyl alcohol triazole Mannich base quaternary ammonium salt, surfactant, solvent mixing, are made the phosphoric acid restrainer.
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Cited By (1)
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| CN109233777A (en) * | 2018-08-30 | 2019-01-18 | 赵晴晴 | A kind of oil well solid corrosion inhibitor |
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