CN101705492A - Steel hydrochloric acid pickling corrosion inhibitor - Google Patents
Steel hydrochloric acid pickling corrosion inhibitor Download PDFInfo
- Publication number
- CN101705492A CN101705492A CN200910222209A CN200910222209A CN101705492A CN 101705492 A CN101705492 A CN 101705492A CN 200910222209 A CN200910222209 A CN 200910222209A CN 200910222209 A CN200910222209 A CN 200910222209A CN 101705492 A CN101705492 A CN 101705492A
- Authority
- CN
- China
- Prior art keywords
- hydrochloric acid
- corrosion inhibitor
- acid pickling
- steel
- pickling corrosion
- 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.)
- Pending
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a hydrochloric acid pickling corrosion inhibitor, mainly applied to the field of hot galvanizing pickling pretreatment, cleaning of boilers and other industrial equipment and the like. The hydrochloric acid pickling corrosion inhibitor comprises the following components by weight percent: 0-20 percent of urotropine, 0-10 percent of rosin amine polyoxyethylene ether, 0-10 percent of additive (nonionic surfactant combination), 0-5 percent of alkynol compound (one or two of propargyl alcohol, butynol and pentynol) and the balance of water. The invention has simple preparation and low cost and is mainly characterized in that firstly, the hydrochloric acid pickling corrosion inhibitor has no foam or low foam; secondly, the hydrochloric acid pickling corrosion inhibitor has high corrosion inhibition rate and fog inhibition rate both in a wider temperature range and in a wider acidity range; and thirdly, after pickling, the surface of steel has favorable conditions, is lustrous and does not have the phenomena of over-corrosion and the like. When the hydrochloric acid pickling corrosion inhibitor is used, the addition quantity of the corrosion inhibitor can be properly regulated according to the actual temperature and acidity of the pickling.
Description
Technical field
The present invention relates to a kind of pickling corrosion inhibition additive, especially relate to the inhibiter of hydrochloric acid-washing rust-removing, boiler and the cleaning of other industrial equipmentss of iron member.The invention belongs to metallic surface clean technical field.
Background technology
Removing steel surface iron rust, oxide film, in the technologies such as the cleaning of boiler, the mode that chlorohydric acid pickling is generally adopted, this method cost is minimum, and easy to operate.But hydrochloric acid also can dissolve iron and steel itself, produces excessive erosion, also wastes a large amount of acid, and simultaneously, chlorohydric acid pickling is easy to generate a large amount of acid mists, causes environmental pollution, is detrimental to health, and the equipment of surrounding environment is caused corrosion.In order to address these problems, need to add corrosion-retarding fog inhibitor.For example: Jiang Liqiang etc. adopt urotropine, K12,1, and compositions such as 4-butynediol are composite, and the hydrochloric acid pickler corrosion-retarding fog inhibitor of developing has higher inhibition and presses down mist efficient.The IS-129 hydrochloric acid pickling corrosion inhibitor is a kind of high-efficiency low-toxicity, the hydrochloric acid special corrosion inhibitor that consumption is few, once obtained " Shaanxi Province's scientific payoffs first prize ", the hydrochloric acid that is applicable to high, medium and low voltage boiler and other industrial equipments cleans, and the hydrochloric acid that is particularly suitable for boiler of power plant, Industrial Boiler and civilian tea boiler cleans.All series products all are well positioned to meet the requirement of production under certain conditions, reach the effect of slow corrosion inhibiting fog.But along with the variation of factors such as processing condition, many inhibiter expose and are subjected to acidity and Temperature Influence bigger, the corrosion inhibition instability, and steel piece surface is coarse, gloomy after the pickling, and shortcoming such as local corrosion, spot corrosion are serious has a strong impact on the quality of subsequent handling.In order to overcome above-mentioned deficiency, the present invention developed suitability wider have a good iron and steel salt acid inhibitor of workpiece surface quality after high corrosion inhibition rate, the pickling.
Summary of the invention
The invention provides a kind of steel hydrochloric acid pickling corrosion inhibitor, its each component and content are: urotropine 0～20%, rosin Amine D Soxylat A 25-7 (EO=8～12) 0～10%, additive (nonionogenic tenside compound) 0～10%, alkynol class (one or both in propiolic alcohol, butynol, the pentyne alcohol) 0～5%, surplus is a water.
Each components description is as follows:
1. urotropine is one of inhibiter composition that generally adopts, and has good corrosion inhibition, it is generally acknowledged that the inhibition mechanism of urotropine is the absorption membranous type.But the corrosion inhibition of urotropine is subjected to Temperature Influence bigger, and the present invention is main component with the urotropine, selects suitable material composite, with the urotropine synergy, has alleviated the influence of temperature to its corrosion inhibition.
2. the rosin Amine D Soxylat A 25-7 had both had performances such as good wetting, the infiltration of tensio-active agent, it is again one of good inhibiter, therefore in acid cleaning process, can play the effect of infiltration, wetting and inhibition simultaneously, good with urotropine and other tensio-active agent synergetic propertyes.It is 8～12 rosin Amine D Soxylat A 25-7 that the present invention takes the epoxy number.
3. additive of the present invention is still or low alveolitoid surfactant compound system, is made up of isomery alcohol ether and other one or both nonionic surface active agent of special construction.The ECOSURF EH tensio-active agent that this special construction isomery alcohol ether is a Dow Chemical has performances such as good wetting, infiltration concurrently, and other nonionogenic tenside is one or both of Tao Shi TERGITOL and TRITON series low-foaming surfactant.After composite, greatly improve the ability of quick humidification of the present invention, infiltration, helped peeling off and dissolving of iron rust, oxide film etc.Additive forms fine and close molecule tunic on the acid solution surface, has the effect that suppresses acid mist simultaneously.
4. the alkynol compounds has good corrosion inhibition, can use as inhibiter separately, or uses composite back.The present invention chooses one or both and urotropine in propiolic alcohol, butynol and the pentyne alcohol and carries out compositely, can form fine and close adsorptive type molecular film at steel surface, effectively stops the corrosion of hydrochloric acid to steel substrate.When temperature raise, the corrosion inhibition of alkynol compounds became absorption-polymerization by adsorption, therefore made system still have good corrosion inhibition under hot conditions.
Compound method of the present invention is, by ratio requirement urotropine is dissolved in a certain amount of water earlier, progressively adds rosin Amine D Soxylat A 25-7, the additive of metering, stir, the alkynol that adds metering then, the water that replenishes surplus at last makes steel hydrochloric acid pickling corrosion inhibitor of the present invention.Its characteristics are: (1) still or low bubble; (2) in wide temperature range and acidity scope, all have high corrosion inhibition rate and press down the mist rate; (3) the steel surface situation is good after the pickling, and is glossy, phenomenons such as no excessive erosion.
Prepare according to following component and content: urotropine 15%, rosin Amine D Soxylat A 25-7 5%, additive 5%, alkynol class 3%, water 72%.Make steel hydrochloric acid pickling corrosion inhibitor of the present invention, its quality index is:
| Index name | Index |
| Outward appearance | Faint yellow to colourless transparent liquid |
| Density (20 ℃), g/cm 3 | ??1.021 |
| Solid content (%) | ??44.5 |
| ??pH | ??7 |
According to " DL/T 523-2007 matting inhibiter application performance evaluation index and test method ", static etch rate of the present invention is less than 0.5g/ (m
2H), corrosion inhibition rate reaches more than 99%.
Embodiment
Prepare this steel hydrochloric acid pickling corrosion inhibitor according to described compound method, be designated as Sample A, wherein each component and content are: urotropine 15%, rosin Amine D Soxylat A 25-7 5%, additive 5%, alkynol class 3%, water 72%.
Embodiment 1:
Experiment condition: the pickling concentration 8% of hydrochloric acid, pickling temperature is respectively 25 ℃ and 55 ℃, and the contrast inhibiter is the IS-129 hydrochloric acid pickling corrosion inhibitor.The addition of inhibiter is 3 ‰ of hydrochloric acid quality, and testing used steel part is the A3 steel pipe, and experiment gained result is:
Experimental result shows that the present invention all can keep its excellent corrosion inhibition in wide temperature range.When temperature continues to raise, can according to circumstances improve the addition of inhibiter.
Embodiment 2:
Experiment condition: pickling is respectively 10% and 25% with the concentration of hydrochloric acid, and pickling temperature is 30 ℃, and according to the concentration of hydrochloric acid, inhibiter addition of the present invention is respectively 3 ‰ and 5 ‰, and used steel part is the A3 steel pipe.Experiment gained result is:
Suitably adjust the addition of inhibiter of the present invention, the same corrosion mitigating effect that obtains excellence under different concentration of hydrochloric acid, the result shows as experiment, corrosion inhibition rate is all more than 95%.
With imidazolidine derivatives or urotropine is the inhibiter of inhibition ingredient, has the unsettled shortcoming of corrosion inhibition, and reason is imidazolidine derivatives and urotropine instability, decomposes easily.The present invention is by adding alkynol and rosin Amine D Soxylat A 25-7, reduce the decomposition rate of urotropine on the one hand by intermolecular effect, on the other hand, alkynol and the good corrosion inhibition of rosin Amine D Soxylat A 25-7 have remedied the decline of decomposing the corrosion inhibition that causes owing to the part urotropine.Therefore, the present invention all has high corrosion inhibition rate in wide temperature range and acidity scope, can satisfy the etch-proof requirement of different pickling fully.
Claims (7)
1. a steel hydrochloric acid pickling corrosion inhibitor is characterized in that, its each component and content are urotropine 0～20%, the rosin Amine D Soxylat A 25-7 0～10% of oxyethylene group group quantity 8～12, and additive 0～10%, alkynol compounds 0～5%, surplus is a water.
2. steel hydrochloric acid pickling corrosion inhibitor according to claim 1 is characterized in that, its each component and content are urotropine 15%, rosin Amine D Soxylat A 25-7 5%, additive 5%, alkynol compounds 3%, water 72%.
3. steel hydrochloric acid pickling corrosion inhibitor according to claim 1 is characterized in that, the additive in its component is the nonionogenic tenside compound.
4. steel hydrochloric acid pickling corrosion inhibitor according to claim 1 is characterized in that, the alkynol compounds in its component is one or both in propiolic alcohol, butynol, the pentyne alcohol.
5. steel hydrochloric acid pickling corrosion inhibitor according to claim 1, it is characterized in that, its preparation method is for being dissolved in urotropine in a certain amount of water by proportioning earlier, the rosin Amine D Soxylat A 25-7, the additive that progressively add metering, stir, the alkynol that adds metering then, the water that replenishes surplus at last is mixed with steel hydrochloric acid pickling corrosion inhibitor of the present invention.
6. steel hydrochloric acid pickling corrosion inhibitor according to claim 1 is characterized in that, still or low bubble during use; In wide temperature range and acidity scope, all have high corrosion inhibition rate and press down the mist rate; The steel surface situation is good after the pickling, and is glossy, no excessive erosion phenomenon.
7. steel hydrochloric acid pickling corrosion inhibitor according to claim 1 is characterized in that concentration of hydrochloric acid is lower than at 15% o'clock, and addition is 2～3 ‰, and concentration of hydrochloric acid is higher than at 15% o'clock, and addition is 4～5 ‰.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222209A CN101705492A (en) | 2009-11-16 | 2009-11-16 | Steel hydrochloric acid pickling corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222209A CN101705492A (en) | 2009-11-16 | 2009-11-16 | Steel hydrochloric acid pickling corrosion inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101705492A true CN101705492A (en) | 2010-05-12 |
Family
ID=42375741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910222209A Pending CN101705492A (en) | 2009-11-16 | 2009-11-16 | Steel hydrochloric acid pickling corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705492A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286750A (en) * | 2011-06-15 | 2011-12-21 | 南通飞拓界面工程科技有限公司 | Acid fog inhibitor |
| CN102330099A (en) * | 2011-09-09 | 2012-01-25 | 北京星航机电设备厂 | Stainless steel pickling inhibitor |
| CN103046062A (en) * | 2012-12-29 | 2013-04-17 | 江苏飞拓界面工程科技有限公司 | Acid cleaning accelerant and preparation method thereof |
| CN104131304A (en) * | 2014-08-25 | 2014-11-05 | 钱宏彬 | High-efficiency multifunctional batch hot galvanizing acid wash additive and preparation method thereof |
| CN104294284A (en) * | 2014-11-07 | 2015-01-21 | 南京溧水振兴船舶附件有限公司 | Corrosion inhibitor for inhibiting seawater with salinity of 25-40 percent and preparation method of corrosion inhibitor |
| CN104404563A (en) * | 2014-11-07 | 2015-03-11 | 南京溧水振兴船舶附件有限公司 | Cleaning agent of ship fuel oil supply pump and preparation method thereof |
| CN104988523A (en) * | 2015-06-08 | 2015-10-21 | 苏州东辰林达检测技术有限公司 | Stainless steel antiscaling agent and preparation method thereof |
| CN105177604A (en) * | 2015-10-09 | 2015-12-23 | 湖北师范学院 | Compound hydrochloric acid pickling corrosion inhibitor |
| CN106435598A (en) * | 2015-08-06 | 2017-02-22 | 胜利油田胜利化工有限责任公司 | Prescription and production process of metal corrosion inhibitor added with fluorine-containing surfactant |
| CN106929907A (en) * | 2017-03-30 | 2017-07-07 | 浙江康盛股份有限公司 | A kind of line Pipe surface derusting technique |
| CN110029352A (en) * | 2018-03-08 | 2019-07-19 | 叶涛 | A kind of environmentally friendly mordant and its application method of metallic article |
| CN110230065A (en) * | 2019-07-26 | 2019-09-13 | 阜阳市路兴公路工程检测有限公司 | A kind of neutral remover of high temperature scale and preparation method thereof |
| CN111170477A (en) * | 2020-03-10 | 2020-05-19 | 北京诺雅博洋科技有限公司 | Corrosion inhibitor suitable for closed circulating water system, preparation method and application |
-
2009
- 2009-11-16 CN CN200910222209A patent/CN101705492A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286750A (en) * | 2011-06-15 | 2011-12-21 | 南通飞拓界面工程科技有限公司 | Acid fog inhibitor |
| CN102330099A (en) * | 2011-09-09 | 2012-01-25 | 北京星航机电设备厂 | Stainless steel pickling inhibitor |
| CN102330099B (en) * | 2011-09-09 | 2013-11-06 | 北京星航机电设备厂 | Stainless steel pickling inhibitor |
| CN103046062A (en) * | 2012-12-29 | 2013-04-17 | 江苏飞拓界面工程科技有限公司 | Acid cleaning accelerant and preparation method thereof |
| CN103046062B (en) * | 2012-12-29 | 2014-10-22 | 江苏飞拓界面工程科技有限公司 | Acid cleaning accelerant and preparation method thereof |
| CN104131304A (en) * | 2014-08-25 | 2014-11-05 | 钱宏彬 | High-efficiency multifunctional batch hot galvanizing acid wash additive and preparation method thereof |
| CN104294284A (en) * | 2014-11-07 | 2015-01-21 | 南京溧水振兴船舶附件有限公司 | Corrosion inhibitor for inhibiting seawater with salinity of 25-40 percent and preparation method of corrosion inhibitor |
| CN104404563A (en) * | 2014-11-07 | 2015-03-11 | 南京溧水振兴船舶附件有限公司 | Cleaning agent of ship fuel oil supply pump and preparation method thereof |
| CN104988523A (en) * | 2015-06-08 | 2015-10-21 | 苏州东辰林达检测技术有限公司 | Stainless steel antiscaling agent and preparation method thereof |
| CN106435598A (en) * | 2015-08-06 | 2017-02-22 | 胜利油田胜利化工有限责任公司 | Prescription and production process of metal corrosion inhibitor added with fluorine-containing surfactant |
| CN105177604A (en) * | 2015-10-09 | 2015-12-23 | 湖北师范学院 | Compound hydrochloric acid pickling corrosion inhibitor |
| CN106929907A (en) * | 2017-03-30 | 2017-07-07 | 浙江康盛股份有限公司 | A kind of line Pipe surface derusting technique |
| CN106929907B (en) * | 2017-03-30 | 2018-11-06 | 浙江康盛股份有限公司 | A kind of line Pipe surface derusting technique |
| CN110029352A (en) * | 2018-03-08 | 2019-07-19 | 叶涛 | A kind of environmentally friendly mordant and its application method of metallic article |
| CN110230065A (en) * | 2019-07-26 | 2019-09-13 | 阜阳市路兴公路工程检测有限公司 | A kind of neutral remover of high temperature scale and preparation method thereof |
| CN110230065B (en) * | 2019-07-26 | 2021-09-07 | 阜阳市路兴公路工程检测有限公司 | Neutral remover for high-temperature oxide skin and preparation method thereof |
| CN111170477A (en) * | 2020-03-10 | 2020-05-19 | 北京诺雅博洋科技有限公司 | Corrosion inhibitor suitable for closed circulating water system, preparation method and application |
| CN111170477B (en) * | 2020-03-10 | 2022-09-06 | 北京诺雅博洋科技有限公司 | Corrosion inhibitor suitable for closed circulating water system, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101705492A (en) | Steel hydrochloric acid pickling corrosion inhibitor | |
| CN101492634B (en) | Organic composite detergent for heat power plant boiler | |
| CN109136940A (en) | Low bubble cleaning agent of a kind of environment-friendly type high performance ferrous metal antirust and preparation method thereof | |
| CN101205609B (en) | Composition for magnesium alloy surface activation | |
| CN104372342A (en) | Chemical stainless steel polishing solution | |
| CN102321463A (en) | Sulfur-containing bis-imidazoline type carbon dioxide corrosion inhibitor and preparation method thereof | |
| CN103603001A (en) | Copper alloy low-temperature cleaning agent | |
| CN105483726A (en) | Efficient low-foam normal-temperature phosphorous-free oil removing liquid | |
| CN101787536B (en) | Normal temperature hydrochloric acid pickling rust removing additive | |
| CN103352226A (en) | Corrosion inhibitor used for preventing corrosion of brass | |
| CN112239870B (en) | Oil and rust removing agent and preparation method and application thereof | |
| CN110723826A (en) | Environment-friendly, efficient and nontoxic corrosion inhibitor and preparation method and application thereof | |
| CN102251249A (en) | High-efficiency corrosion-retarding detergent for cobalt-base alloy | |
| CN1339578A (en) | Cleaning agent for metal equipment | |
| CN104513999A (en) | Corrosion inhibitor composition, applications thereof, and method using same to perform acid-washing on equipment | |
| CN100587119C (en) | Multifunctional hydrochloric acid pickling additive | |
| JPS6313480B2 (en) | ||
| CN103882452A (en) | Citric acid acid-pickling inhibitor | |
| CN112458468B (en) | Spray cleaning agent and preparation method thereof | |
| CN102242367B (en) | Multifunctional novel ethylene diamine tetraacetic acid (EDTA) cleaning corrosion inhibitor | |
| CN103526215A (en) | Silicon steel pickling promoter and preparation method thereof | |
| CN108754517A (en) | A kind of rust remover and preparation method thereof for mechanical equipment | |
| JP2006348324A (en) | Corrosion inhibitor composition, acid purification solution, and acid purification method for metal | |
| KR101381849B1 (en) | Corrosion inhibtor composition for picking solution | |
| CN106835169A (en) | A kind of aluminum cleaning agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100512 |