CN115074737A - Environment-friendly polyacid corrosion inhibitor prepared from 2-vinylpyridine still residues - Google Patents
Environment-friendly polyacid corrosion inhibitor prepared from 2-vinylpyridine still residues Download PDFInfo
- Publication number
- CN115074737A CN115074737A CN202210632146.2A CN202210632146A CN115074737A CN 115074737 A CN115074737 A CN 115074737A CN 202210632146 A CN202210632146 A CN 202210632146A CN 115074737 A CN115074737 A CN 115074737A
- Authority
- CN
- China
- Prior art keywords
- vinylpyridine
- still residue
- water
- corrosion inhibitor
- friendly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses an environment-friendly polyacid corrosion inhibitor prepared by utilizing 2-vinylpyridine still residue, which comprises the following components in percentage by mass: 20-50% of improved 2-vinyl pyridine still residue solution, 25-60% of absolute ethyl alcohol, 2-7% of sodium iodide, 5-20% of urotropine, 1-7% of cinnamaldehyde, 3-9% of benzalkonium bromide, 3-8% of promoter DM4 and 5-20% of desalted water, wherein the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid, OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 3-5% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water. Compared with other corrosion inhibitors, the corrosion inhibitor has the characteristics of low construction temperature, high corrosion inhibition efficiency, wide application range and the like, and simultaneously has the advantages of wide raw material source, low cost, suitability for large-scale production and the like.
Description
Technical Field
The invention relates to an environment-friendly corrosion inhibitor, in particular to an environment-friendly polyacid corrosion inhibitor prepared by utilizing 2-vinylpyridine still residue.
Background
2-vinylpyridine is an important organic intermediate, is widely applied to the fields of rubber industry, functional polymer materials, electronic materials, medicines and the like, and has large market demand. At present, the main approach for producing 2-vinylpyridine is to synthesize hydroxyethyl pyridine by liquid-phase catalytic addition of 2-methylpyridine and formaldehyde under high pressure or normal pressure, then the hydroxyethyl pyridine is subjected to dehydration reaction by high-temperature gasification in the presence of inorganic bases such as sodium hydroxide and the like to obtain 2-vinylpyridine, and residues in a kettle are kettle residues. The kettle residue contains various pyridine, hydrocarbon substances, inorganic base and the like, belongs to dangerous waste products, and can cause serious pollution to the environment such as atmosphere, water source, soil and the like if the kettle residue is directly discharged without treatment; the treatment requires expense, the production cost of the 2-vinylpyridine is increased, and economic pressure is caused to enterprises.
The corrosion inhibitor is a chemical agent for inhibiting metal corrosion, and the environment-friendly corrosion inhibitor is a corrosion inhibitor which is non-toxic or low-toxic and does not pollute the environment when in use. The existing partially environment-friendly corrosion inhibitor has the problems of high raw material price and difficult large-scale production, for example, the novel gemini quaternary ammonium salt corrosion inhibitor is synthesized by taking dimethylaminoethyl methacrylate as a raw material, the yield of the dimethylaminoethyl methacrylate is low at home, and the dimethylaminoethyl methacrylate needs to be imported from foreign countries, so that the price is high.
So far, no report is found about the preparation of the environment-friendly polyacid corrosion inhibitor by taking 2-vinylpyridine as a raw material.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides an environment-friendly polyacid corrosion inhibitor prepared by using 2-vinylpyridine still residue.
The technical solution of the invention is as follows: an environment-friendly polyacid corrosion inhibitor prepared from 2-vinylpyridine still residue comprises the following components in percentage by mass: 20-50% of improved 2-vinyl pyridine still residue solution, 25-60% of absolute ethyl alcohol, 2-7% of sodium iodide, 5-20% of urotropine, 1-7% of cinnamaldehyde, 3-9% of benzalkonium bromide, 3-8% of promoter DM4 and 5-20% of desalted water, wherein the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid, OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 3-5% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water.
The invention improves the 2-vinylpyridine still residue, converts pyridine substances into water-soluble and nontoxic pyridine salts, completely disperses and dissolves hydrocarbons in water to prepare improved 2-vinylpyridine still residue solution, and then prepares the environment-friendly corrosion inhibitor by matching the improved 2-vinylpyridine still residue solution with other components. The prepared environment-friendly corrosion inhibitor (300 mg/L) has the corrosion inhibition efficiency of 98.81% under the conditions of 15% HCl medium and 298K, has the characteristics of low construction temperature, high corrosion inhibition efficiency and the like compared with other corrosion inhibitors, is suitable for various acidic systems such as hydrochloric acid, hydrofluoric acid, sulfuric acid, earth acid, citric acid, nitric acid, EDTA, sulfamic acid, glycolic acid, oxalic acid and the like, and has good corrosion inhibition effect on carbon steel, stainless steel, brass, red copper, aluminum, galvanized materials and the like. The invention solves the contradiction between environmental protection and enterprise treatment of hazardous waste, and has the advantages of wide raw material source, low cost, suitability for large-scale production and the like.
Detailed Description
Example 1:
the weight percentages of the components are as follows: 20% of improved 2-vinyl pyridine still residue solution, 60% of absolute ethyl alcohol, 2% of sodium iodide, 5% of urotropine, 1% of cinnamyl aldehyde, 3% of benzalkonium bromide, 4% of accelerator DM and 5% of desalted water, wherein the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid (industrial grade), OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 3% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water.
Example 2:
the weight percentages of the components are as follows: 50% of improved 2-vinyl pyridine still residue solution, 25% of absolute ethyl alcohol, 3% of sodium iodide, 5% of urotropine, 4% of cinnamyl aldehyde, 4% of benzalkonium bromide, 4% of accelerator and 5% of desalted water, wherein the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid (industrial grade), OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 4% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water.
Example 3:
the weight percentages of the components are as follows: the modified 2-vinyl pyridine still residue solution is 30 percent, the absolute ethyl alcohol is 35 percent, the sodium iodide is 5 percent, the urotropine is 10 percent, the cinnamaldehyde is 5 percent, the benzalkonium bromide is 5 percent, the accelerant DM5 percent and the desalted water is 5 percent, and the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid (industrial grade), OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 5% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water.
Experiment:
(1) the invention adopts gas chromatography-mass spectrometry to analyze the kettle residue produced by the method for producing 2-vinylpyridine in the background technology, and the result shows that the kettle residue comprises the following main components:
mixing the 2-vinylpyridine still residue solution, hydrochloric acid, OP-10 emulsifier and water to prepare the improved 2-vinylpyridine still residue solution.
The hydrochloric acid converts pyridine substances into water-soluble and nontoxic pyridine salts, and the reaction process is as follows:
the OP-10 emulsifier can completely disperse and dissolve hydrocarbons in water, and the inorganic base is also dissolved in water, so that a uniform solution containing 2-vinylpyridine still residue, namely the improved 2-vinylpyridine still residue solution, is prepared, and the corrosion inhibitor formed by the improved 2-vinylpyridine still residue solution and other components is a non-dangerous waste product.
(2) The environment-friendly polyacid corrosion inhibitors of examples 1, 2 and 3 of the present invention were added under the condition of an acidic system (hydrochloric acid, hydrofluoric acid, earth acid, nitric acid, sulfamic acid, citric acid, acetic acid, glycolic acid) at room temperature, and the metal test piece systems of stainless steel, zinc, aluminum, etc. were reacted for 4 hours, and the corrosion rate was calculated from the weight loss, and the results are shown in table 1.
Table 1 acidic system applicable to examples 1, 2 and 3 of the present invention at room temperature and corresponding metal material
Note: v represents the corrosion rate of < 1 g.m for a specific metal material in the system at normal temperature -2 ·h -1 (ii) a O represents a corrosion rate of not less than 1 g.m for a specific metal material at normal temperature -2 ·h -1 。
The results in table 1 show that the application range of the embodiments of the present invention is very wide.
(3) The environmentally friendly polyacid corrosion inhibitors of examples 1, 2 and 3 of the present invention were added to different systems (citric acid, citric acid-ammonium bifluoride, glycolic acid-formic acid-ammonium bifluoride, etc.) under specific temperature conditions (25 ℃, 60 ℃, 65 ℃, 80 ℃, 85 ℃, 90 ℃), and the corrosion rates were calculated according to their weight loss after the reaction was put in metal test pieces of stainless steel, zinc, aluminum, etc. for 4 hours, and the experimental results are shown in table 2.
TABLE 2 acidic system applicable to specific temperature in examples 1, 2 and 3 of the present invention and corresponding metal material
Note: v represents the corrosion rate of the specific metal material in the system at the temperature of less than 1 g.m -2 ·h -1 ；
The corrosion rate of the polyacid corrosion inhibitor in the system to the specific metal material at the temperature is more than or equal to 1 g.m -2 ·h -1 。
The results in table 2 show that the examples of the present invention have a wide application range under specific temperature and specific acidity conditions.
Claims (1)
1. An environment-friendly polyacid corrosion inhibitor prepared from 2-vinylpyridine still residue is characterized by comprising the following components in percentage by mass: 20-50% of improved 2-vinyl pyridine still residue solution, 25-60% of absolute ethyl alcohol, 2-7% of sodium iodide, 5-20% of urotropine, 1-7% of cinnamaldehyde, 3-9% of benzalkonium bromide, 3-8% of promoter DM4 and 5-20% of desalted water, wherein the pH value is 7-8; the improved 2-vinylpyridine still residue solution is prepared by mixing 2-vinylpyridine still residue, hydrochloric acid, OP-10 emulsifier and water, and the volume percentages of the components are as follows: 40% of 2-vinyl pyridine still residue, 3-5% of hydrochloric acid, 0.01% of OP-10 emulsifier and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632146.2A CN115074737B (en) | 2022-06-07 | 2022-06-07 | Environment-friendly type multi-acid corrosion inhibitor prepared by utilizing 2-vinyl pyridine kettle residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632146.2A CN115074737B (en) | 2022-06-07 | 2022-06-07 | Environment-friendly type multi-acid corrosion inhibitor prepared by utilizing 2-vinyl pyridine kettle residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115074737A true CN115074737A (en) | 2022-09-20 |
| CN115074737B CN115074737B (en) | 2023-08-11 |
Family
ID=83249179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210632146.2A Active CN115074737B (en) | 2022-06-07 | 2022-06-07 | Environment-friendly type multi-acid corrosion inhibitor prepared by utilizing 2-vinyl pyridine kettle residues |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115074737B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1740495A1 (en) * | 1989-08-09 | 1992-06-15 | Институт Химии Нефти И Природных Солей Ан Казсср | Method for preparation of acid corrosion metal inhibitor |
| AU5583496A (en) * | 1996-06-07 | 1997-12-18 | Mobil Oil Corporation | Inhibition of scale formation from oil well brines utilizing a slow release composition |
| CN102676140A (en) * | 2012-04-26 | 2012-09-19 | 南京华洲新材料有限公司 | Nitrogenous heterocyclic quaternary ammonium salt acidizing corrosion inhibitor and preparation method thereof |
| US20160115598A1 (en) * | 2014-10-28 | 2016-04-28 | King Fahd University Of Petroleum And Minerals | Novel mild steel corrosion inhibitor compounds |
| CN105838345A (en) * | 2016-04-25 | 2016-08-10 | 长江大学 | Corrosion inhibitor for oilfield flooding and preparation method thereof |
| WO2017067094A1 (en) * | 2015-10-21 | 2017-04-27 | 深圳市广昌达石油添加剂有限公司 | Iimidazoline compound corrosion inhibitor and preparation method thereof |
| WO2018119973A1 (en) * | 2016-12-30 | 2018-07-05 | 刘清华 | Hydrochloric acid pickling inhibitor and preparation method therefor |
| CN109487275A (en) * | 2018-11-08 | 2019-03-19 | 淄博张店东方化学股份有限公司 | Utilize the method for 2- vinylpyridine residue preparation pyridines metal inhibitor |
| CN110577829A (en) * | 2018-06-08 | 2019-12-17 | 中国石油天然气股份有限公司 | Cinnamaldehyde Schiff base acidizing corrosion inhibitor, preparation and use method |
-
2022
- 2022-06-07 CN CN202210632146.2A patent/CN115074737B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1740495A1 (en) * | 1989-08-09 | 1992-06-15 | Институт Химии Нефти И Природных Солей Ан Казсср | Method for preparation of acid corrosion metal inhibitor |
| AU5583496A (en) * | 1996-06-07 | 1997-12-18 | Mobil Oil Corporation | Inhibition of scale formation from oil well brines utilizing a slow release composition |
| CN102676140A (en) * | 2012-04-26 | 2012-09-19 | 南京华洲新材料有限公司 | Nitrogenous heterocyclic quaternary ammonium salt acidizing corrosion inhibitor and preparation method thereof |
| US20160115598A1 (en) * | 2014-10-28 | 2016-04-28 | King Fahd University Of Petroleum And Minerals | Novel mild steel corrosion inhibitor compounds |
| WO2017067094A1 (en) * | 2015-10-21 | 2017-04-27 | 深圳市广昌达石油添加剂有限公司 | Iimidazoline compound corrosion inhibitor and preparation method thereof |
| CN105838345A (en) * | 2016-04-25 | 2016-08-10 | 长江大学 | Corrosion inhibitor for oilfield flooding and preparation method thereof |
| WO2018119973A1 (en) * | 2016-12-30 | 2018-07-05 | 刘清华 | Hydrochloric acid pickling inhibitor and preparation method therefor |
| CN110577829A (en) * | 2018-06-08 | 2019-12-17 | 中国石油天然气股份有限公司 | Cinnamaldehyde Schiff base acidizing corrosion inhibitor, preparation and use method |
| CN109487275A (en) * | 2018-11-08 | 2019-03-19 | 淄博张店东方化学股份有限公司 | Utilize the method for 2- vinylpyridine residue preparation pyridines metal inhibitor |
Non-Patent Citations (7)
| Title |
|---|
| M. ASKARI等: "Film former corrosion inhibitors for oil and gas pipelines - A technical review", 《JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING》, vol. 58, pages 92, XP085465224, DOI: 10.1016/j.jngse.2018.07.025 * |
| MENG‑DI ZHU 等: "Development of polyacid corrosion inhibitor with 2‑vinylpyridine residue", 《CHEMICAL PAPERS》 * |
| RAJAE SALIM 等: "A Review on the Assessment of Imidazo[1,2-a]pyridines As Corrosion Inhibitor of Metals", 《JOURNAL OF BIO- AND TRIBO-CORROSION》, pages 1 - 10 * |
| 孙克忠;王宝才;许国华;郑花锡;: "具有阳离子表面活性的吡啶釜残反应产物作为酸化缓蚀剂", 应用化工, no. 01 * |
| 孙浩: "吡啶类季铵盐型缓蚀剂的合成及其缓蚀性能的研究", 《中国优秀硕士学位论文全文数据库》, pages 022 - 258 * |
| 杨文治;安瑞根;朴昌浩;李立平;周辉;关群;洪星;: "油气井酸化缓蚀剂的研究(ⅣA)――4―甲基吡啶釜残的剖析及其对钢铁/盐酸体系的缓蚀作用", 应用化工, no. 01 * |
| 赵斌等: "一种新型镀锌设备盐酸清洗 缓蚀剂JZA 的研制", 《清洗世界》, vol. 31, no. 1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115074737B (en) | 2023-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2769376C1 (en) | Method of producing modified corrosion inhibitor by acidification of chitosan | |
| CN102031526A (en) | Low-temperature acidification corrosion inhibitor and preparation method thereof | |
| CN103059825B (en) | Corrosion inhibitor for oil wells and preparation method | |
| CN102251247A (en) | Composite scale and rust cleaning agent | |
| CN111196919A (en) | Mannich base type acidizing corrosion inhibitor and preparation method thereof | |
| CN104531380A (en) | Preparation method of wax removing cleaning agent for oil field oil pumping pipeline | |
| CN108642500B (en) | Water-soluble bipyridyl gemini quaternary ammonium salt corrosion inhibitor and preparation method and application thereof | |
| CN103938217A (en) | Neutral rust remover | |
| CN115074737A (en) | Environment-friendly polyacid corrosion inhibitor prepared from 2-vinylpyridine still residues | |
| CN114990556A (en) | Efficient corrosion inhibitor applied to lactic acid corrosion condition | |
| CN110863208B (en) | Carbon steel pickling corrosion inhibitor based on polygonatum polysaccharide | |
| CN109487275B (en) | Method for preparing pyridine-type metal corrosion inhibitor by using 2-vinylpyridine residues | |
| CN106518770A (en) | Preparation method of novel water soluble and non-salt soluble imidazoline corrosion inhibitor and application | |
| CN102492948B (en) | Extract corrosion inhibitor of sweet potato stems and lettuce flower stalks and preparation method thereof | |
| CN101985693B (en) | Preparation method and application of metal chelate compound of cigarette end extract | |
| CN112877053B (en) | Medium-high temperature corrosion inhibitor for acid fracturing and preparation method thereof | |
| CN111777608B (en) | Novel plant modified quinoline quaternary ammonium salt compound, preparation method and application | |
| CN102433564B (en) | Preparation method of Schiff-base corrosion inhibitor by condensation of o-oxy-acetate-benzaldehyde and substituted aniline | |
| CN111363532B (en) | Imidazoline Schiff base type high-temperature acidizing corrosion inhibitor | |
| CN100406616C (en) | Polyphenyl amine corrosion inhibitor of oil well | |
| CN110387549B (en) | Additive and method for inhibiting residual iron powder on surface of steel coil subjected to acid pickling | |
| CN1288076A (en) | Acid mist inhibitor for hydochloric acid pickling, and its prodn. method | |
| CN101717944B (en) | Method for preparing corrosion inhibitor by utilizing cottonseed oil | |
| CN114716031B (en) | High-temperature-resistant composite corrosion and scale inhibitor and preparation method thereof | |
| CN101285191B (en) | Process for preparing corrosion inhibitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |