CN102212833B - Neutral rust removing detergent - Google Patents
Neutral rust removing detergent Download PDFInfo
- Publication number
- CN102212833B CN102212833B CN 201010236136 CN201010236136A CN102212833B CN 102212833 B CN102212833 B CN 102212833B CN 201010236136 CN201010236136 CN 201010236136 CN 201010236136 A CN201010236136 A CN 201010236136A CN 102212833 B CN102212833 B CN 102212833B
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- CN
- China
- Prior art keywords
- rust removing
- neutral
- acid
- organic acid
- removing detergent
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000007935 neutral effect Effects 0.000 title claims abstract description 23
- 239000003599 detergent Substances 0.000 title claims abstract description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 208000030208 low-grade fever Diseases 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 6
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 2
- 239000010962 carbon steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000006184 cosolvent Substances 0.000 abstract 3
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract 2
- 229910017665 NH4HF2 Inorganic materials 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000012459 cleaning agent Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a neutral rust removing detergent, which mainly comprises organic acid, chemical cosolvent, value regulator and water. The organic acid can be glycolic acid, citric acid, oxalic acid or the like. The cosolvent can be NH4HF2, NaF, NH2CONH2 or the like; and the value regulator is alkali value regulator. The neutral rust removing detergent is prepared by the following steps of: dissolving the organic acid into the water, performing gentle heating so that the organic acid is dissolved, adding the cosolvent, and then adding the value regulator to regulate the solution to be neutral. The preparation process is simple and low in cost, the cleaning is not limited by temperature, and the rust removing detergent has good rust removing effect; and because both the detergent and the waste solution are neutral, the corrosion to equipment, particularly to carbon steel and stainless steel equipment is low. After cleaning, a passivating agent for passivating can be directly added into the waste solution. The passivating effect is good, and the equipment is not easily corroded. The cleaning process is simplified.
Description
Technical field
The present invention relates to the derusting and cleaning agent of a kind of clean-out system, particularly a kind of neutrality.
Background technology
In industries such as petrochemical complex, industrial chemical industry, some large-scale plants and pipeline all need to eliminate rust before driving.Present various rust remover is industrial applications in a large number; In the former cleaning agent formula, because adding proportion science not causes the acidity of clean-out system stronger, apparatus body is had than severe corrosive; Be exactly the product composition complexity in addition, technology controlling and process is strict in the actual industrial configuration, and cost is high.Used in the past acidic cleaner, its prescription is: 1. mineral acid, blue star inhibiter; 2. citric acid, ammoniacal liquor.Mineral acid can be one or more in hydrochloric acid, nitric acid, the hydrofluoric acid in filling a prescription 1.; 2. prescription also is to clean under the condition of pH value for acidity.These two kinds of scavenging solution acidity are all stronger, and serious to equipment corrosion, discharging of waste liquid also has certain harm to environment, and the scavenging solution volatility is larger, and are unfavorable for long-time storage.Other said neutral deoiling derusting cleaning agent among the patent No. CN 1297646C, the contained reagent composition of this product is many, and cost is large, and dissolving is subjected to the restriction of temperature, and scavenging period is relatively long.
Summary of the invention
Main purpose of the present invention provides a kind of neutral rust removing detergent, and prescription is simple, and use cost is low, and scavenging period is short, and is little to the equipment corrosion of various materials.This clean-out system storage time can reach more than 2 years.
The technical problem to be solved in the present invention provides each component of above-mentioned neutral cleaners, content and compound method.
For the technical scheme that solves the problems of the technologies described above employing is:
A kind of neutral rust removing detergent comprises following component proportion:
This organic acid can be one or more in oxyacetic acid, citric acid, the oxalic acid.
Described chemical solubility promoter can be NH
4HF
2, NaF, NH
2CONH
2In one or more.
PH value as this clean-out system of preferred version is 6.5-7.5.
The compound method of above-mentioned neutral rust removing detergent, it comprises the steps:
A, each weight percentages of components that provides by prescription;
B, organic acid is dissolved in the water;
C, directly stir or low-grade fever adds solubility promoter after making its dissolving, then add tone pitch agent regulator solution to neutrality and namely finish preparation.
Positively effect of the present invention is: the technical formula after the improvement has changed composition proportion through many experiments, has the following advantages:
1, ingredient is few, and scavenging period is short, and it also is neutral cleaning and not being subjected to temperature limitation, the clean-out system pH value after the improvement, and the rust cleaning effect does not weaken.
2, the waste water after the cleaning also is neutral, free from environmental pollution.
3, from the laboratory experiment phenomenon: the steel pipe that 1. adheres to a large amount of iron rust soaked 4-6 hour through neutral cleaners, and iron rust all comes off, and directly successful after the passivation is difficult for getting rusty for a long time; 2. by static corrosion test relatively, the clean-out system after the improvement reduces greatly to equipment corrosion.
Performance of the present invention, concrete physical and chemical index and control experiment are shown in table one, two, three, four:
Table one performance index
Table two controlled trial
Table three neutral cleaners physical and chemical index
| Outward appearance | The pH value | Density (g/cm 3) | Volatile matter |
| Colourless transparent liquid | 6.5-7.0 | 1.04 | Nothing |
Clean-out system physical and chemical index before the table four
Can be found out by above table: the advantage of this neutral cleaners is neutral the cleaning, and cleaning efficiency is high, and is minimum to equipment corrosion, cleans environmental protection, and waste liquid is free from environmental pollution, belongs to green cleaning agent
Application Areas: the present invention can be applicable to the rust cleaning before operation of pipeline, sheet material, steel systeming equipment and complexes and cleans.The present invention is in being applied to clean the time, can strengthen or reduce concentration according to the degree of corrosion, can adopt the different process such as immersion, brushing, sprinkling to clean according to instrument size.The control temperature is more than 0 ℃ during cleaning, and general normal temperature gets final product.
The worker is used steel pipe, and sheet material cleans, and adds 2m according to scaling degree in rinse bath
3Water, after pressure testing moves successfully, add neutral rust remover 200kg, wash cycles detected iron concentration in 6 hours and tends towards stability, and directly added passivator in rinse bath, regulated pH, temperature to the required condition of passivation, passivation was discharged passivating solution after 4 hours, open the flange inspection, pipe interior knot rust is removed clean, and wall is with the canescence passive film of one deck densification.
Derusting and cleaning agent of the present invention is removed effect shown in following table five to the corrosion of steel pipe, sheet material:
Table five neutral cleaners is removed effect
Clean-out system was removed effect shown in following table six to the corrosion of steel pipe, sheet material in the past:
Table six was removed effect with clean-out system in the past
Clean-out system of the present invention has following characteristics:
1, rust cleaning thoroughly evenly, can not cause system's slit and kapillary latch up phenomenon.After rust cleaning is finished, need not rinsing and directly add passivating solution and do not affect Chromating Film On Zn Deposits.
2, nontoxic, tasteless, do not fire not quick-friedly, scavenging solution pH value is 6.5-7.0, uses the pH of tone pitch agent solution easy to control to be neutrality during preparation.
3, blending process of the present invention is simple, and cost is low, cleans and is not subjected to temperature limitation, eliminates rust effective, and scavenging solution and waste liquid are neutrality, and be little to equipment corrosion.
4, to equipment such as carbon steel and stainless steels.Can directly in its waste liquid, add passivator after the cleaning and carry out passivation.Good passivation effect, equipment is difficult for corrosion.Simplified cleaning.
5, stable performance is difficult for decomposing and goes bad, and the shelf lives can reach more than 2 years.
Embodiment:
Neutral rust removing detergent compound method of the present invention, it comprises the steps:
A, each weight percentages of components that provides by prescription; Be specially (weight percent) 4% oxalic acid, 2%NH
2CONH
2
B, organic acid is dissolved in the water;
C, directly stir or low-grade fever adds solubility promoter after making its dissolving, then add tone pitch agent regulator solution to neutrality and namely finish preparation.
Although the disclosed embodiment of the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention is not to limit the present invention.Technician in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation in the details that reaches of implementing in form; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (3)
1. neutral rust removing detergent comprises following component proportion:
It is characterized in that: this organic acid is one or more in oxyacetic acid, citric acid, the oxalic acid;
Described chemical solubility promoter is NH
4HF
2, NaF, NH
2CONH
2In one or more.
2. neutral rust removing detergent as claimed in claim 1 is characterized in that: the pH value of this clean-out system is 6.5-7.5.
3. the compound method of neutral rust removing detergent as claimed in claim 1, it comprises the steps:
A, each weight percentages of components that provides by prescription;
B, organic acid is dissolved in the water;
C, directly stir or low-grade fever adds solubility promoter after making its dissolving, then add tone pitch agent regulator solution to neutrality and namely finish preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010236136 CN102212833B (en) | 2010-07-26 | 2010-07-26 | Neutral rust removing detergent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010236136 CN102212833B (en) | 2010-07-26 | 2010-07-26 | Neutral rust removing detergent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102212833A CN102212833A (en) | 2011-10-12 |
| CN102212833B true CN102212833B (en) | 2013-03-06 |
Family
ID=44744357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010236136 Active CN102212833B (en) | 2010-07-26 | 2010-07-26 | Neutral rust removing detergent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102212833B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223311A (en) * | 2014-06-16 | 2016-01-06 | 上海蓝浦清洗技术有限公司 | The cleaning of a kind of stainless steel neutrality detects cream |
| CN105297046A (en) * | 2014-06-16 | 2016-02-03 | 上海蓝浦清洗技术有限公司 | Environment-friendly neutral cleaning agent |
| CN104313606B (en) * | 2014-10-08 | 2016-08-17 | 安徽奥丰汽车配件有限公司 | For metalwork surface degreasing, the cleaning solution of rust cleaning |
| CN104611691B (en) * | 2015-02-05 | 2017-03-29 | 陕西凯利清洗有限公司 | A kind of organic passivation agent and its application process for carbon steel piping or carbon steel pipe fitting |
| CN105063643B (en) * | 2015-09-11 | 2017-09-12 | 烟台市誉大清洗有限公司 | A kind of neutral environment-friendly rust remover and preparation method thereof |
| CN107604371A (en) * | 2017-07-31 | 2018-01-19 | 宁波际超新材料科技有限公司 | A kind of neutral rust remover and preparation method thereof |
| CN109852978B (en) * | 2019-03-26 | 2021-04-06 | 高瑞安 | Aluminum alloy oil-removing and polishing two-in-one treatment solution and method for performing oil-removing and polishing treatment on aluminum alloy |
| CN110616437A (en) * | 2019-10-30 | 2019-12-27 | 湖南金裕环保科技有限公司 | Neutral rust remover, preparation method and use method thereof |
| CN114525141B (en) * | 2020-11-23 | 2023-11-14 | 中国核工业二三建设有限公司 | Foaming agent for vacuum box air bubble method, preparation method and use method |
| CN115287664B (en) * | 2022-08-03 | 2023-06-20 | 深圳市海沃维斯科技有限公司 | Low-corrosion metal surface rust removal treatment agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148102A (en) * | 1995-10-19 | 1997-04-23 | 宋良国 | Non-acid |
| CN101768529A (en) * | 2010-01-25 | 2010-07-07 | 蓝星环境工程有限公司 | Broad-spectrum and efficient cleaning agent for cooling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1486551B1 (en) * | 2003-06-13 | 2016-03-16 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting element and light emitting device |
-
2010
- 2010-07-26 CN CN 201010236136 patent/CN102212833B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148102A (en) * | 1995-10-19 | 1997-04-23 | 宋良国 | Non-acid |
| CN101768529A (en) * | 2010-01-25 | 2010-07-07 | 蓝星环境工程有限公司 | Broad-spectrum and efficient cleaning agent for cooling system |
Non-Patent Citations (3)
| Title |
|---|
| 徐宣红.钢铁常温中性除锈剂的研究.《电镀与环保》.1996,第16卷(第4期),18-20. |
| 钢铁常温中性除锈剂的研究;徐宣红;《电镀与环保》;19960731;第16卷(第4期);18-20 * |
| 齐建国等.汽轮机油路系统投运前的中性化学清洗.《清洗世界》.2010,第26卷(第3期),9-11. * |
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|---|---|
| CN102212833A (en) | 2011-10-12 |
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Address after: 257000 No. 5 Jizhou Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Tai Fung Cleaning Technology Co.,Ltd. Address before: 257073 No. 303 Xisi Road, Dongying District, Dongying City, Shandong Province Patentee before: Shandong Tai Fung Cleaning Technology Co.,Ltd. |
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Addressee: Kong Lu Document name: Notification of Passing Examination on Formalities |
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Denomination of invention: Neutral rust removing detergent Effective date of registration: 20191025 Granted publication date: 20130306 Pledgee: Dongying rural commercial bank Limited by Share Ltd Shengli branch Pledgor: Shandong Tai Fung Cleaning Technology Co.,Ltd. Registration number: Y2019990000414 |
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Date of cancellation: 20210118 Granted publication date: 20130306 Pledgee: Dongying rural commercial bank Limited by Share Ltd. Shengli branch Pledgor: SHANDONG TIFON CLEANING TECHNOLOGY Co.,Ltd. Registration number: Y2019990000414 |
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