CN102766876A - Environment-friendly pickling inhibitor and application thereof in pickling of carbon steel - Google Patents
Environment-friendly pickling inhibitor and application thereof in pickling of carbon steel Download PDFInfo
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- CN102766876A CN102766876A CN2012102582898A CN201210258289A CN102766876A CN 102766876 A CN102766876 A CN 102766876A CN 2012102582898 A CN2012102582898 A CN 2012102582898A CN 201210258289 A CN201210258289 A CN 201210258289A CN 102766876 A CN102766876 A CN 102766876A
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Abstract
The invention discloses an environment-friendly pickling inhibitor and an application of the environment-friendly pickling inhibitor in the pickling of carbon steel, to effectively solve the problem of the pickling of the carbon steel. The chemical components of the environment-friendly pickling inhibitor include water and any two or three of urotropin, cation surfactant, dodecyl dimethylbenzyl ammonium chloride, octadecyl dimethylbenzyl ammonium chloride, dodecyl dimethylbenzyl ammonium bromide, myristyl dimethyl ammonium chlorid; the method for application of the environment-friendly pickling inhibitor to the pickling of the carbon steel comprises the steps: adding the pickling inhibitor into a hydrochloric acid solution or a sulphuric acid solution with a concentration of 1.0-10mol/L according to the ratio of 1L of acid solution to 0.05g-2g of the pickling inhibitor; immersing the carbon steel to be washed or a carbon steel product in the acid liquid added with the pickling inhibitor; and controlling the temperature to be 20-70 DEG C and immersing time to be 5-20min. The pickling inhibitor provided by the invention is a pickling inhibitor friendly to the environment. Compared with the current common inorganic corrosion inhibitors, the pickling inhibitor is non-toxic and harmless, is environment friendly, does not cause environmental problems after application, and conforms to the development trend of the green corrosion inhibitors.
Description
Technical field
The present invention relates to restrainer and application thereof, particularly a kind of environment-friendly type restrainer and the application in carbon steel pickling thereof
Background technology
Pickling is to remove pretreatment technology commonly used such as metallic surface corrosion, oxide compound, has a wide range of applications in industries such as metallic substance, machinery, metallurgy, electric power, chemical industry.Acid commonly used in the pickling has hydrochloric acid, sulfuric acid, nitric acid etc., and they also produce overpickling to metallic substance in the clean metal surface; The hydrogen that metal and acid-respons generate can cause the hydrogen embrittlement corrosion of metal; And take a large amount of acid mists out of, irritating property of intensive smell is arranged, influence Working environment; The corrosion workshop appliance, and cause a large amount of useless consumption of hydrochloric acid.Therefore, people are everlasting and add inhibiter in the pickle solution, to suppress the corrosion of metal in acidic medium, reduce the usage quantity of acid, improve pickling effect.
The existing restrainer overwhelming majority is the organic cpds that contains elements such as oxygen, nitrogen, sulphur, phosphorus; Like amine, Thiourea, aldoketones, imidazolines, pyridine and quinoline quaternary ammonium salt etc.; Mostly need complicated building-up process, production cost is higher, does not possess the market competitiveness.And restrainer also contains propiolic alcohol, is highly toxic substance, the global environmental requirement of incompatibility.And the environment-friendly type organic inhibitor is not only in use environmentally friendly, in production and preparation process, also can not cause detrimentally affect to environment.Therefore, new efficient, environment-friendly type organic inhibitor are just receiving the many concerns of People more and more.
Chinese patent open (bulletin) number: CN102363888 discloses inhibiter and the preparation method in a kind of acid cleaning process, and the inhibiter staple comprises Virahol, propiolic alcohol, halogenide, reductive agent and suppressor factor, but propiolic alcohol wherein belongs to highly toxic substance; Chinese patent open (bulletin) number: CN102134722 discloses superloy restrainer and application thereof, and the inhibiter composition is the aniline aldehyde polymer, uses more aborning; Its corrosion mitigating effect is good; But saw from producing originally that aniline aldehydes inhibiter all will pass through complicated building-up process, production cost is higher; And production process can produce the three wastes, contaminate environment.
Summary of the invention
The invention provides a kind of environment-friendly type restrainer and the application in carbon steel pickling thereof, effectively solve the carbon steel pickling problem.
Its chemical composition of environment-friendly type restrainer provided by the invention is: urotropine; In cats product dodecyl benzyl dimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, four kinds of compounds of tetradecyl dimethyl benzyl ammonium chloride any two kinds or three kinds; Water.
The quality percentage composition of the chemical composition of said environment-friendly type restrainer is following:
Urotropine 5-40%;
Dodecyl benzyl dimethyl ammonium chloride 0-35%;
Stearyl dimethyl benzyl ammonium chloride 0-10%;
Dodecyl dimethyl benzyl ammonium bromide 0-20%;
Tetradecyl dimethyl benzyl ammonium chloride 0-10%;
Water 50-70%;
The application method of said environment-friendly type restrainer in carbon steel pickling is following:
According to the consumption that adds inhibiter 0.05-2g in every liter of acid solution; Inhibiter is joined in the hydrochloric acid or sulphuric acid soln that concentration is 1.0-10mol/L; With acid solution submergence carbon steel or the carbon steel goods to be cleaned that are added with inhibiter, temperature is controlled at 20-70 ℃, Immersion time 5-20min.
Principle of the present invention is: cats product can effectively be adsorbed in steel surface, forms protective membrane, plays corrosion inhibition; Have and clean and affinity interaction; Can bubble, acid mist is had the covering effect.
The present invention compared with prior art, its significant beneficial effect is embodied in:
1. it is wide that the environment-friendly type restrainer adapts to the pickle solution concentration range;
2. the environment-friendly type restrainer is environmentally friendly organic inhibitor, compares with inorganic inhibitor at present commonly used, and is nontoxic, environmentally friendly, do not have the environmental problem after the use, meets the development trend of green corrosion inhibitor;
3. the low in raw material cost of environment-friendly type restrainer is easy to get, and cost is low;
4. the environment-friendly type restrainer is used for the steel surface pickling; Add a spot of inhibiter and just can suppress consuming excessively of harmful corrosion and the acid solution of metallic substance in acid cleaning process effectively; With inhibiter at present commonly used relatively, it is low to have a consumption, the high outstanding advantage of inhibition efficiency;
5. the corrosion inhibition of environment-friendly type restrainer is stable, can withstand temp in acid cleaning process, the variation of conditions such as acid strength, do not influence the corrosion mitigating effect of inhibiter.
Embodiment
Describe the present invention in detail with embodiment below, embodiment carries out zero-G test according to GB10124-88 " metallic substance laboratory uniform corrosion total immersion test method ".
Embodiment 1
Environment-friendly type restrainer chemical composition quality percentage composition:
Urotropine 20%; Cats product dodecyl benzyl dimethyl ammonium chloride 25%; Stearyl dimethyl benzyl ammonium chloride 5%; Water 50%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 1g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 8mol/L; Pickle solution consumption 100L is immersed in 5min in the pickle solution with carbon steel to be cleaned under 70 ℃ of conditions.
Inhibition efficiency 99% through experimental test obtains is shown as inhibiter efficiently.
Embodiment 2
Environment-friendly type restrainer chemical composition quality percentage composition:
Urotropine 25%; Cats product dodecyl benzyl dimethyl ammonium chloride 20%; Stearyl dimethyl benzyl ammonium chloride 5%; Water 50%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 0.5g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 4mol/L; Pickle solution consumption 100L is immersed in 15min in the pickle solution with carbon steel to be cleaned under 30 ℃ of conditions.
Inhibition efficiency 97% through experimental test obtains is shown as inhibiter efficiently.
Embodiment 3
The quality percentage composition of environment-friendly type restrainer chemical composition:
Urotropine 10%; Cats product dodecyl dimethyl benzyl ammonium bromide 15%; Tetradecyl dimethyl benzyl ammonium chloride 10%; Water 65%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 1g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 4mol/L; Pickle solution consumption 100L is immersed in 10min in the pickle solution with carbon steel to be cleaned under 60 ℃ of conditions.
Inhibition efficiency 93% through experimental test obtains is shown as inhibiter efficiently.
Embodiment 4
The quality percentage composition of environment-friendly type restrainer chemical composition:
Urotropine 15%; Cats product dodecyl dimethyl benzyl ammonium bromide 15%; Tetradecyl dimethyl benzyl ammonium chloride 5%; Water 65%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 0.5g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 4mol/L; Pickle solution consumption 100L is immersed in 15min in the pickle solution with carbon steel to be cleaned under 40 ℃ of conditions.
Inhibition efficiency 95% through experimental test obtains is shown as inhibiter efficiently.
Embodiment 5
The quality percentage composition of environment-friendly type restrainer chemical composition:
Urotropine 5%; Cats product dodecyl dimethyl benzyl ammonium bromide 15%; Stearyl dimethyl benzyl ammonium chloride 5%; Tetradecyl dimethyl benzyl ammonium chloride 5%; Water 70%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 2g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 6mol/L; Pickle solution consumption 100L is immersed in 5min in the pickle solution with carbon steel to be cleaned under 60 ℃ of conditions.
Inhibition efficiency 98% through experimental test obtains is shown as inhibiter efficiently.
Embodiment 6
The quality percentage composition of environment-friendly type restrainer chemical composition:
Urotropine 10%; Cats product dodecyl dimethyl benzyl ammonium bromide 10%; Stearyl dimethyl benzyl ammonium chloride 5%; Tetradecyl dimethyl benzyl ammonium chloride 5%; Water 70%.
The application method of environment-friendly type restrainer in carbon steel pickling:
Above-mentioned chemical composition mixed the inhibiter that obtains according to the consumption that adds inhibiter 0.5g in every liter of acid solution; Be dissolved in the pickle solution, pickle solution is a hydrochloric acid soln, and concentration is 6mol/L; Pickle solution consumption 100L is immersed in 15min in the pickle solution with carbon steel to be cleaned under 30 ℃ of conditions.
Inhibition efficiency 96% through experimental test obtains is shown as inhibiter efficiently.
Claims (3)
1. an environment-friendly type restrainer is characterized in that the chemical composition of this inhibiter is: urotropine; In cats product dodecyl benzyl dimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, four kinds of compounds of tetradecyl dimethyl benzyl ammonium chloride any two kinds or three kinds; Water.
2. environment-friendly type restrainer according to claim 1 is characterized in that the chemical composition quality percentage composition of inhibiter is following:
Urotropine 5-40%;
Dodecyl benzyl dimethyl ammonium chloride 0-35%;
Stearyl dimethyl benzyl ammonium chloride 0-10%;
Dodecyl dimethyl benzyl ammonium bromide 0-20%;
Tetradecyl dimethyl benzyl ammonium chloride 0-10%;
Water 50-70%.
3. the application method of environment-friendly type restrainer according to claim 1 in carbon steel pickling is characterized in that this method is:
According to the consumption that adds inhibiter 0.05-2g in every liter of acid solution; Inhibiter is joined in the hydrochloric acid or sulphuric acid soln that concentration is 1.0-10mol/L; With acid solution submergence carbon steel or the carbon steel goods to be cleaned that are added with inhibiter, temperature is controlled at 20-70 ℃, Immersion time 5-20min.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451724A (en) * | 2012-12-13 | 2015-03-25 | 吴小再 | Water electrolysis pole plate surface treatment method capable of improving corrosion resistance after nickel plating of pole plate |
| CN104947127A (en) * | 2015-07-15 | 2015-09-30 | 龚灿锋 | Metal material cleaning liquid |
| CN104962931A (en) * | 2015-07-03 | 2015-10-07 | 桂林理工大学 | Preparation method of indigo carmine/triethanolamine compounded corrosion inhibitor for 1045 carbon steel hydrochloric acid pickling solution |
| CN104988520A (en) * | 2015-07-30 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Corrosion inhibitor composition, and method for pickling by using corrosion inhibitor composition |
| CN105040007A (en) * | 2015-07-30 | 2015-11-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Acid adding inhibiter and method for acid pickling through acid adding inhibiter |
| CN105297058A (en) * | 2015-11-09 | 2016-02-03 | 广东新球清洗科技股份有限公司 | Environment-friendly easily-rinsed easily-cleaned water draining agent and preparation method thereof and application |
| CN105951106A (en) * | 2016-06-06 | 2016-09-21 | 上海理工大学 | Special hydrochloric acid pickling corrosion inhibitor for spring steel |
| CN106011885A (en) * | 2016-08-16 | 2016-10-12 | 四川理工学院 | Novel composite corrosion inhibitor for inhibiting corrosion of carbon steel in pickling process |
| CN107541736A (en) * | 2017-08-30 | 2018-01-05 | 青岛沃尔特节能工程技术有限公司 | A kind of station boiler pickling solid corrosion inhibitor |
| CN113005461A (en) * | 2019-12-20 | 2021-06-22 | 齐鲁工业大学 | Carbon steel descaling and cleaning corrosion inhibitor and cleaning agent |
| CN113005462A (en) * | 2019-12-20 | 2021-06-22 | 齐鲁工业大学 | Descaling and cleaning corrosion inhibitor and cleaning agent for 201 stainless steel |
| CN114032551A (en) * | 2022-01-12 | 2022-02-11 | 西南石油大学 | Preparation method of ternary composite quaternary ammonium salt corrosion inhibitor |
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| US6454870B1 (en) * | 2001-11-26 | 2002-09-24 | General Electric Co. | Chemical removal of a chromium oxide coating from an article |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451724B (en) * | 2012-12-13 | 2016-08-24 | 宁夏中科天际防雷股份有限公司 | The water electrolysis polar board surface processing method of the corrosion resistance after pole plate nickel plating can be improved |
| CN104451724A (en) * | 2012-12-13 | 2015-03-25 | 吴小再 | Water electrolysis pole plate surface treatment method capable of improving corrosion resistance after nickel plating of pole plate |
| CN104962931A (en) * | 2015-07-03 | 2015-10-07 | 桂林理工大学 | Preparation method of indigo carmine/triethanolamine compounded corrosion inhibitor for 1045 carbon steel hydrochloric acid pickling solution |
| CN104947127A (en) * | 2015-07-15 | 2015-09-30 | 龚灿锋 | Metal material cleaning liquid |
| CN104988520A (en) * | 2015-07-30 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Corrosion inhibitor composition, and method for pickling by using corrosion inhibitor composition |
| CN105040007A (en) * | 2015-07-30 | 2015-11-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Acid adding inhibiter and method for acid pickling through acid adding inhibiter |
| CN105040007B (en) * | 2015-07-30 | 2018-03-30 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method that addition carries out pickling with corrosion inhibiter and with addition in the acid with corrosion inhibiter in acid |
| CN105297058A (en) * | 2015-11-09 | 2016-02-03 | 广东新球清洗科技股份有限公司 | Environment-friendly easily-rinsed easily-cleaned water draining agent and preparation method thereof and application |
| CN105951106A (en) * | 2016-06-06 | 2016-09-21 | 上海理工大学 | Special hydrochloric acid pickling corrosion inhibitor for spring steel |
| CN106011885A (en) * | 2016-08-16 | 2016-10-12 | 四川理工学院 | Novel composite corrosion inhibitor for inhibiting corrosion of carbon steel in pickling process |
| CN107541736A (en) * | 2017-08-30 | 2018-01-05 | 青岛沃尔特节能工程技术有限公司 | A kind of station boiler pickling solid corrosion inhibitor |
| CN113005461A (en) * | 2019-12-20 | 2021-06-22 | 齐鲁工业大学 | Carbon steel descaling and cleaning corrosion inhibitor and cleaning agent |
| CN113005462A (en) * | 2019-12-20 | 2021-06-22 | 齐鲁工业大学 | Descaling and cleaning corrosion inhibitor and cleaning agent for 201 stainless steel |
| CN113005462B (en) * | 2019-12-20 | 2023-03-24 | 齐鲁工业大学 | Descaling and cleaning corrosion inhibitor and cleaning agent for 201 stainless steel |
| CN114032551A (en) * | 2022-01-12 | 2022-02-11 | 西南石油大学 | Preparation method of ternary composite quaternary ammonium salt corrosion inhibitor |
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