CN110863208B - Carbon steel pickling corrosion inhibitor based on polygonatum polysaccharide - Google Patents
Carbon steel pickling corrosion inhibitor based on polygonatum polysaccharide Download PDFInfo
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- CN110863208B CN110863208B CN201911227604.9A CN201911227604A CN110863208B CN 110863208 B CN110863208 B CN 110863208B CN 201911227604 A CN201911227604 A CN 201911227604A CN 110863208 B CN110863208 B CN 110863208B
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- corrosion inhibitor
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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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a carbon steel pickling inhibitor based on polygonatum polysaccharide. The corrosion inhibitor is polygonatum polysaccharide which can be used for preventing the consumption of metal or acid liquor in the pickling process of carbon steel and products thereof. The corrosion inhibitor is a natural plant extract, has the characteristics of environmental protection, low price, wide source and no public nuisance, is suitable for industrial acid washing of carbon steel and products thereof, and has good application prospect.
Description
Technical Field
The invention relates to the field of corrosion inhibitors, in particular to a carbon steel pickling corrosion inhibitor based on polygonatum polysaccharides.
Background
Among various metal materials, carbon steel has low price, the smelting process is easy, and most engineering requirements can be met, so the method is widely applied to various aspects of mechanical manufacturing. However, during casting, forging, welding and heat treatment of carbon steel, a dense oxide layer with strong adhesion is easily formed on the surface of carbon steel, which affects the appearance quality and the service performance of carbon steel and needs to be removed.
Acid cleaning is one of the important means for removing the oxide layer on the surface of carbon steel. However, in order to prevent the phenomena of 'over-etching' in the pickling process, such as loss of steel materials, increase of surface roughness, and hydrogen embrittlement of metal surfaces, the addition of corrosion inhibitors in the pickling process is an economical and effective means (Zhang, w., et al.j. mol. liq.2016, 222, 671; Mobin, m., et al.carbohy. polym.2017, 160, 172).
The current common corrosion inhibitors mainly comprise inorganic corrosion inhibitor compounds containing toxic chromate and some organic phosphorus corrosion inhibitor compounds, and the discharge of the compounds can cause eutrophication of water bodies. Most of the existing corrosion inhibitors in the same field have toxic and side effects, or have higher synthesis cost and no market competitiveness.
Therefore, the development of new environmentally friendly, cheap, widely available and pollution-free corrosion inhibitors is a new direction for the development of the current corrosion inhibitors.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a polygonatum sibiricum extract green pickling corrosion inhibitor and application thereof, and solves the problems of high toxicity, difficult degradation, poor water solubility, high cost, complex process, easy secondary pollution to the environment and the like of the existing corrosion inhibitor.
In order to achieve the purpose, the invention adopts the following technical scheme:
(1) extracting polysaccharide crude extract: vacuum drying rhizoma polygonati, crushing, sieving with a 80-mesh sieve, and mixing according to a material-liquid ratio of 1 g: mixing 40mL of the polysaccharide with water, leaching for 30-40min at 70-80 ℃, then carrying out ultrasonic extraction for 30-40min, centrifuging, carrying out rotary evaporation on the supernatant obtained by centrifuging for 60-80min, then adding the supernatant into an ethanol solution, stirring, standing for 12-24h, filtering, and freeze-drying the obtained precipitate to obtain a polysaccharide crude extract;
(2) and (3) extraction: according to the material ratio of 1 g: adding 10mL of polysaccharide crude extract into chloroform-n-butanol mixed solution, repeatedly extracting for 3 times, combining water phases obtained by 3 times of extraction, then adding an ethanol solution into the water phases until the mass concentration of ethanol is 80%, standing for 12-24h, filtering, washing obtained solids for 2 times by using the ethanol solution, absolute ethanol, acetone and ether in sequence, drying and drying to obtain the corrosion inhibitor.
(3) Weighing 10-60 mg of the corrosion inhibitor obtained in the step (2), fully dissolving the corrosion inhibitor in the pickling solution, and fixing the volume to 100mL to obtain the test solution.
(4) And (4) at room temperature, performing a weight loss coupon experiment in the corrosion solution prepared in the step (3) to evaluate the corrosion inhibition performance.
Further, the corrosion inhibitor polygonatum polysaccharide is extracted from the root of polygonatum;
further, the acid washing solution is 1mol/L dilute hydrochloric acid and 0.5 mol/L dilute sulfuric acid.
Further, the temperature is 30 ℃, and a carbon steel sample to be pickled is added into the mixed solution and immersed for 3 hours.
Compared with the prior art, the invention has the following positive beneficial effects
(1) The extraction production process is simple, the extraction condition is mild, the energy consumption is low, and the production is easy.
(2) The corrosion inhibitor is extracted from polygonatum plants, is a natural plant extract substance, and is a nontoxic harmless green corrosion inhibitor. Compared with the current chemically synthesized corrosion inhibitor, the corrosion inhibitor can be rapidly decomposed in nature, does not have the environmental problem after use, is nontoxic and harmless to the environment and organisms, conforms to the development trend of cleaning agents, and has good application prospect.
(3) The corrosion inhibitor is used for cleaning carbon steel and products thereof, can effectively inhibit harmful corrosion of a metal substrate in acid and excessive consumption of acid liquor, has the outstanding advantages of low consumption, high efficiency and strong continuous action capability compared with the current common corrosion inhibitors, and can be repeatedly used.
Detailed Description
The present invention is further described in detail by the following examples, but the technical content of the examples is illustrative and not restrictive, and the scope of the present invention should not be limited thereby. Meanwhile, the experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
Example 1
(1) Pulverizing rhizoma Polygonati root with pulverizer to particle size of 80 mesh, and extracting rhizoma Polygonati polysaccharide with water extraction and ethanol precipitation method.
(2) The cleaning solutions with the concentrations of 100 mg/L, 200 mg/L, 400 mg/L and 600 mg/L were prepared respectively with 1mol/L diluted hydrochloric acid. Carbon steel is cleaned at the temperature of 30 ℃, and immersed for 3 hours, and then a hanging piece weight loss experiment is carried out. According to the formula: s = (K) 0 −K 1 )/K 0 Calculating the efficiency of corrosion inhibition, wherein K 0 Corrosion rate without corrosion inhibitor, K 1 The corrosion rate of the added corrosion inhibitor is shown.
Example 2
(1) Pulverizing rhizoma Polygonati root with pulverizer to particle size of 80 mesh, and extracting rhizoma Polygonati polysaccharide with water extraction and ethanol precipitation method.
(2) The cleaning solutions with the concentrations of 100 mg/L, 200 mg/L, 400 mg/L and 600 mg/L were prepared respectively with 0.5 mol/L dilute sulfuric acid. Cleaning carbon steel at 30 ℃, immersing for 3 hours, and then hangingAnd (5) weight loss experiment. According to the formula: s = (K) 0 −K 1 )/K 0 Calculating the efficiency of corrosion inhibition, wherein K 0 Corrosion rate without corrosion inhibitor, K 1 The corrosion rate of the added corrosion inhibitor is shown.
The corrosion inhibition rate of the polygonatum polysaccharide corrosion inhibitor prepared in the 2 examples on carbon steel in an acid solution is shown in the following table:
table 1 example 1
Table 2 example 2
Claims (1)
1. The application of the carbon steel pickling corrosion inhibitor based on the polygonatum polysaccharide is characterized in that the corrosion inhibitor is the polygonatum polysaccharide, the polygonatum polysaccharide can inhibit metal corrosion or acid liquor consumption of steel and products thereof in the pickling process, the acid solution is 1mol/L hydrochloric acid and 0.5 mol/L sulfuric acid, and the operation method comprises the following steps:
(1) extracting polysaccharide crude extract: vacuum drying rhizoma polygonati, crushing, sieving by a 80-mesh sieve, and mixing according to a feed liquid ratio of 1 g: mixing 40mL of the polysaccharide with water, leaching for 30-40min at 70-80 ℃, then carrying out ultrasonic extraction for 30-40min, centrifuging, carrying out rotary evaporation on the supernatant obtained by centrifuging for 60-80min, then adding the supernatant into an ethanol solution, stirring, standing for 12-24h, filtering, and freeze-drying the obtained precipitate to obtain a polysaccharide crude extract;
(2) and (3) extraction: according to the material ratio of 1 g: adding 10mL of polysaccharide crude extract into chloroform-n-butanol mixed solution, repeatedly extracting for 3 times, combining water phases obtained by 3 times of extraction, then adding an ethanol solution into the water phases until the mass concentration of ethanol is 80%, standing for 12-24h, filtering, washing obtained solids for 2 times by using the ethanol solution, absolute ethanol, acetone and ether in sequence, drying and drying to obtain the corrosion inhibitor;
(3) and (3) weighing 10-60 mg of the corrosion inhibitor obtained in the step (2), fully dissolving the corrosion inhibitor in an acid solution, and fixing the volume to 100mL to obtain an acid washing solution, wherein the acid solution is 1mol/L hydrochloric acid and 0.5 mol/L sulfuric acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911227604.9A CN110863208B (en) | 2019-12-04 | 2019-12-04 | Carbon steel pickling corrosion inhibitor based on polygonatum polysaccharide |
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| CN201911227604.9A CN110863208B (en) | 2019-12-04 | 2019-12-04 | Carbon steel pickling corrosion inhibitor based on polygonatum polysaccharide |
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| CN110863208B true CN110863208B (en) | 2022-08-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111705322B (en) * | 2020-06-24 | 2022-02-22 | 威海惠安康生物科技有限公司 | Stevioside and zinc acetate compound pickling corrosion inhibitor |
| CN111575719B (en) * | 2020-06-29 | 2022-05-31 | 威海海洋生物医药产业技术研究院有限公司 | Sea cucumber polysaccharide carbon steel corrosion inhibitor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572743A (en) * | 1983-04-26 | 1986-02-25 | Huels Aktiengesellschaft | Method for pickling metallic surfaces |
| CN1928159A (en) * | 2006-09-28 | 2007-03-14 | 中国科学院海洋研究所 | Green high efficient restrainer and its application |
| CN101988201A (en) * | 2009-08-07 | 2011-03-23 | 中国科学院海洋研究所 | Oligochitosan carbon steel seawater corrosion inhibitor and application thereof |
| CN101994122A (en) * | 2009-08-21 | 2011-03-30 | 中国科学院海洋研究所 | Antibiotic carbon steel pickling corrosion inhibitor and application thereof |
| CN103937477A (en) * | 2014-04-29 | 2014-07-23 | 大连理工大学 | Controlled-release solid corrosion inhibitor capable of solving underground corrosion of oil well and preparation method thereof |
| CN104073809A (en) * | 2014-06-16 | 2014-10-01 | 中国石油大学(华东) | Plant type corrosion inhibitor from natural source and application thereof |
| CN105543864A (en) * | 2016-01-05 | 2016-05-04 | 中北大学 | Method for preparing carbon steel pickling solution with low-molecular-weight sunflower disc pectin as corrosion inhibitor |
| CN106400033A (en) * | 2016-11-11 | 2017-02-15 | 中北大学 | Sunflower head corrosion inhibitor extract and method for preparing metal acid-pickling solution using the same |
| 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 |
| CN109354630A (en) * | 2018-12-13 | 2019-02-19 | 常馨尹 | The extracting method of Siberian solomonseal rhizome polysaccharide |
-
2019
- 2019-12-04 CN CN201911227604.9A patent/CN110863208B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572743A (en) * | 1983-04-26 | 1986-02-25 | Huels Aktiengesellschaft | Method for pickling metallic surfaces |
| CN1928159A (en) * | 2006-09-28 | 2007-03-14 | 中国科学院海洋研究所 | Green high efficient restrainer and its application |
| CN101988201A (en) * | 2009-08-07 | 2011-03-23 | 中国科学院海洋研究所 | Oligochitosan carbon steel seawater corrosion inhibitor and application thereof |
| CN101994122A (en) * | 2009-08-21 | 2011-03-30 | 中国科学院海洋研究所 | Antibiotic carbon steel pickling corrosion inhibitor and application thereof |
| CN103937477A (en) * | 2014-04-29 | 2014-07-23 | 大连理工大学 | Controlled-release solid corrosion inhibitor capable of solving underground corrosion of oil well and preparation method thereof |
| CN104073809A (en) * | 2014-06-16 | 2014-10-01 | 中国石油大学(华东) | Plant type corrosion inhibitor from natural source and application thereof |
| CN105543864A (en) * | 2016-01-05 | 2016-05-04 | 中北大学 | Method for preparing carbon steel pickling solution with low-molecular-weight sunflower disc pectin as corrosion inhibitor |
| CN106400033A (en) * | 2016-11-11 | 2017-02-15 | 中北大学 | Sunflower head corrosion inhibitor extract and method for preparing metal acid-pickling solution using the same |
| 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 |
| CN109354630A (en) * | 2018-12-13 | 2019-02-19 | 常馨尹 | The extracting method of Siberian solomonseal rhizome polysaccharide |
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