CN103060826B - Cucumber seed extract carbon steel acid pickling inhibitor and application thereof - Google Patents
Cucumber seed extract carbon steel acid pickling inhibitor and application thereof Download PDFInfo
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- CN103060826B CN103060826B CN201110330104.5A CN201110330104A CN103060826B CN 103060826 B CN103060826 B CN 103060826B CN 201110330104 A CN201110330104 A CN 201110330104A CN 103060826 B CN103060826 B CN 103060826B
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Abstract
The invention discloses a carbon steel acid pickling inhibitor and application thereof. The carbon steel acid pickling inhibitor is used for preventing carbon steel and products thereof from unnecessary corrosion and acid liquor consumption in an acid pickling process. The inhibitor is an organic mixture in a cucumber seed extract. The application method of the inhibitor is characterized in that the cleaning liquor is diluted hydrochloric acid with concentration of 0.10-1.0kmol/m<3>, 0.010-2.0kg/m<3> of cleaning agent is added, the temperature is controlled between 25 DEG C and 30 DEG C, and carbon steel and products thereof to be cleaned are added and are immersed for 1-4 hours. The product is used for cleaning surfaces of carbon steel and products thereof, can prevent excessive erosion of metals and excessive consumption of acid liquor in a cleaning process, and has the prominent advantages of low dosage, high efficiency and strong sustained action capacity.
Description
Technical field
The present invention relates to inhibiter production technical field, the green efficient carbon steel pickling corrosion inhibitor of seed of Fructus Cucumidis sativi extract of one consumed in order to the corrosion that prevents carbon steel and goods thereof unnecessary in acid cleaning process and acid solution specifically and application thereof.
Background technology
Steel application is more and more extensive, in its Product processing and application process, conventional dilute sulphuric acid or dilute hydrochloric acid carry out surface cleaning, to remove oxide film or the corrosion product on surface, because strong acid all has corrosive nature to hardware, often occur " crossing erosion " phenomenon in acid cleaning process, this process both can cause the corrosion of metallic substance, the a large amount of acid solutions simultaneously produced, do great damage to environment.The generation consuming and prevent unwanted corrosion excessively of metal or acid in acid cleaning process, in acid, add the clean-out system with corrosion inhibition is economic, effective means.The use of inhibiter effectively can suppress the corrosion of metal in acidic medium, reduces the usage quantity of acid, improves pickling effect, extension device work-ing life, is thus widely used in the industrial sectors such as chemical industry, oil, the energy, traffic, electromechanics, building.
In clean-out system conventional at present, mainly comprise the inorganic corrosion inhibiting compound that chromic salt, nitrate, nitrite etc. are poisonous, and some organophosphor compounds, its discharge may cause the eutrophication of water body, the clean-out system of existing same domain mostly has toxic side effect, do not possess the market competitiveness, be not suitable with global environmental requirement.
Along with the enhancing of human environment protection consciousness and going deep into of the idea of sustainable development; new requirement is proposed to the development and application of inhibiter, around performance and economic goal research and development, the developing direction that destruction and environmental friendliness inhibiter become following inhibiter is not formed to environment.Therefore, develop new efficient, the clean-out system of environmental protection becomes the new direction of exploitation.
Summary of the invention
The object of this invention is to provide a kind of green seed of Fructus Cucumidis sativi extract carbon steel pickling corrosion inhibitor and application thereof.
Technical scheme of the present invention is: inhibiter composition is seed of Fructus Cucumidis sativi extract organic mixture, and it is the extract of cucumber seeds aqueous hydrochloric acid.
The extract of described cucumber seeds aqueous hydrochloric acid is solution, medicinal extract or powder;
The preparation process of the extract of cucumber seeds aqueous hydrochloric acid is:
Be stir hydrolysis in 0.1mol/L-1mol/L hydrochloric acid more than 12 hours by Semen Cucumidis sativi powder in concentration, rear suction filtration removing cucumber residue, by filtrate constant volume, obtains the extract solution of cucumber seeds aqueous hydrochloric acid;
The extract solution of described cucumber seeds aqueous hydrochloric acid can the extract medicinal extract (medicinal extract relative density is 1.20-1.35) of simmer down to cucumber seeds aqueous hydrochloric acid;
The extract solution of described cucumber seeds aqueous hydrochloric acid or medicinal extract dry (lyophilize or spraying dry) can become the extract powder of cucumber seeds aqueous hydrochloric acid;
The hydrochloric acid content that every gram of Semen Cucumidis sativi uses is 5-30ml.
Inhibiter composition is: seed of Fructus Cucumidis sativi extract.
Scavenging solution is acid solution, and the amount adding inhibiter in often liter of acid solution is solution 0.001ml-200ml/L or medicinal extract or powder 0.001g-3.0g/L, and submergence temperature is room temperature (room temperature refers to that temperature controls at 25-30 DEG C), and the time is 0.5-4h;
Wherein: acid solution is dilute hydrochloric acid, concentration is 0.1mol/L-1mol/L.
Principle of the present invention is: seed of Fructus Cucumidis sativi extract has aromatic ring, fragrant heterocycle, heteroatoms, amino, double bond, triple bond, the large П key of circulation etc. atom or group, effectively can play corrosion inhibition.
Product of the present invention is used for the surface cleaning of carbon steel and products thereof, can prevent the excessive etch of metal and consuming excessively of acid solution in cleaning process, have the outstanding advantages that consumption is low, efficiency is high, continuous action ability is strong.
Embodiment
The present invention carries out zero-G test according to GB10124-88 " Uniform Corrosion Method of Laboratory Immersion Test method ".
The preparation of the extract of cucumber seeds aqueous hydrochloric acid: be stir hydrolysis in 0.1mol/L hydrochloric acid 16 hours in 480ml concentration by 50 grams of Semen Cucumidis sativi powder, rear suction filtration removing cucumber residue, filtrate is settled to 500ml with 0.1mol/L hydrochloric acid, obtains the extract solution of cucumber seeds aqueous hydrochloric acid;
Be dried to the extract powder of cucumber seeds aqueous hydrochloric acid after being concentrated by the extract solution of cucumber seeds aqueous hydrochloric acid, described powder is used in following examples 1-6 again;
Embodiment 1
Pickle solution is dilute hydrochloric acid, and concentration is 0.1M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 30g, at ambient temperature steel to be cleaned is immersed in 4h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 98%, is shown as efficient clean-out system.
Embodiment 2
Pickle solution is dilute hydrochloric acid, and concentration is 0.1M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 15g, at ambient temperature steel to be cleaned is immersed in submergence 4h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 96%, is shown as efficient clean-out system.
Embodiment 3
Pickle solution is dilute hydrochloric acid, and concentration is 0.5M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 30g, at ambient temperature steel to be cleaned is immersed in 4h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 96%, is shown as efficient clean-out system.
Embodiment 4
Pickle solution is dilute hydrochloric acid, and concentration is 0.5M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 15g, at ambient temperature steel to be cleaned is immersed in submergence 4h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 93%, is shown as efficient clean-out system.
Embodiment 5
Pickle solution is dilute hydrochloric acid, and concentration is 1M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 30g, at ambient temperature steel to be cleaned is immersed in submergence 2h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 95%, is shown as efficient clean-out system.
Embodiment 6
Pickle solution is dilute hydrochloric acid, and concentration is 1M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 20g, at ambient temperature steel to be cleaned is immersed in submergence 2h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 92%, is shown as efficient clean-out system.
Embodiment 7
Semen Cucumidis sativi is ground, take 35.0778 grams, Semen Cucumidis sativi powder with analytical balance, measure 0.5mol/L hydrochloric acid 400ml and put into the beaker containing cucumber powder and stir, and be hydrolyzed 24h, rear suction filtration removing cucumber residue, moves to filtrate in 500ml volumetric flask also with obtained 0.5mol/L hydrochloric acid constant volume.
Pickle solution is dilute hydrochloric acid, and concentration is 0.5M, and pickle solution consumption 100L adds seed of Fructus Cucumidis sativi extract 2000ml, at ambient temperature steel to be cleaned is immersed in 3h in pickle solution.
The highest inhibition efficiency obtained by experimental test is 98%, is shown as efficient clean-out system.
Claims (5)
1. a seed of Fructus Cucumidis sativi extract carbon steel pickling corrosion inhibitor, its feature: its activeconstituents is the extract of cucumber seeds aqueous hydrochloric acid; Concentration of hydrochloric acid is 0.1mol/L-1mol/L.
2. according to seed of Fructus Cucumidis sativi extract carbon steel pickling corrosion inhibitor described in claim 1, it is characterized in that: inhibiter composition is the extract of cucumber seeds aqueous hydrochloric acid.
3. according to seed of Fructus Cucumidis sativi extract carbon steel pickling corrosion inhibitor described in claim 1 or 2, it is characterized in that: the extract of described cucumber seeds aqueous hydrochloric acid is solution, medicinal extract or powder;
The preparation process of the extract of cucumber seeds aqueous hydrochloric acid is:
Be stir hydrolysis in 0.1mol/L-1mol/L hydrochloric acid more than 12 hours by cucumber seeds powder in concentration, rear suction filtration removing cucumber residue, by filtrate constant volume, obtains the extract solution of cucumber seeds aqueous hydrochloric acid;
The extract solution of described cucumber seeds aqueous hydrochloric acid can the extract medicinal extract of simmer down to cucumber seeds aqueous hydrochloric acid;
The extract solution of described cucumber seeds aqueous hydrochloric acid or medicinal extract can be dried to the extract powder of cucumber seeds aqueous hydrochloric acid;
The hydrochloric acid content that every gram of cucumber seeds uses is 5-30ml.
4. an application for the carbon steel pickling corrosion inhibitor described in claim 1 or 2, is characterized in that: with the scavenging solution submergence cleaning steel being added with seed of Fructus Cucumidis sativi extract inhibiter.
5. by the application of carbon steel pickling corrosion inhibitor according to claim 4, it is characterized in that: scavenging solution is acid solution, the amount adding inhibiter in acid solution is solution 0.001ml-200ml/L or medicinal extract or powder 0.001g-3.0g/L, and submergence temperature is room temperature, and the time is 0.5-4h;
Wherein: acid solution is dilute hydrochloric acid, concentration is 0.1mol/L-1mol/L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110330104.5A CN103060826B (en) | 2011-10-21 | 2011-10-21 | Cucumber seed extract carbon steel acid pickling inhibitor and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110330104.5A CN103060826B (en) | 2011-10-21 | 2011-10-21 | Cucumber seed extract carbon steel acid pickling inhibitor and application thereof |
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| CN103060826A CN103060826A (en) | 2013-04-24 |
| CN103060826B true CN103060826B (en) | 2015-01-07 |
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| CN107287600A (en) * | 2017-06-29 | 2017-10-24 | 西南石油大学 | A kind of corrosion inhibiter containing dried orange peel extracts and its preparation method and application |
| CN107099803A (en) * | 2017-06-29 | 2017-08-29 | 西南石油大学 | A kind of preparation method and purposes of the carbon steel pickling corrosion inhibitor containing Flos Rosae Rugosae extract |
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| JP4481760B2 (en) * | 2004-08-03 | 2010-06-16 | 伊藤製油株式会社 | Pickling corrosion inhibitor and corrosion-resistant pickling solution using the same |
| JP4869782B2 (en) * | 2006-05-15 | 2012-02-08 | 朝日化学工業株式会社 | Corrosion inhibitor, metal acid cleaning liquid composition, and metal acid cleaning method |
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Non-Patent Citations (4)
| Title |
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| JP特开2006-45608A 2006.02.16 * |
| JP特开2007-302986A 2007.11.22 * |
| 一种环保植物型酸洗缓蚀剂的研究;曾宪光等;《四川理工学院学报(自然科学版)》;20090831;第22卷(第04期);117-119 * |
| 天然绿色盐酸酸洗缓蚀剂研究进展;郑兴文等;《四川理工学院学报(自然科学版)》;20080831;第21卷(第04期);68-71 * |
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