CN101899667B - Special cleaning agent for aluminium equipment - Google Patents
Special cleaning agent for aluminium equipment Download PDFInfo
- Publication number
- CN101899667B CN101899667B CN2010102180087A CN201010218008A CN101899667B CN 101899667 B CN101899667 B CN 101899667B CN 2010102180087 A CN2010102180087 A CN 2010102180087A CN 201010218008 A CN201010218008 A CN 201010218008A CN 101899667 B CN101899667 B CN 101899667B
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- Prior art keywords
- cleaning
- agent
- aluminium
- equipment
- aluminium equipment
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- 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.)
- Expired - Fee Related
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to a chemical cleaning agent, in particular relating to a special cleaning agent for cleaning aluminium equipment. The invention provides the special leaning agent for the aluminium equipment and a scheme. The cleaning agent can effectively clean various insoluble scales on the aluminium equipment. The cleaning agent comprises the following raw materials by weight percent: 15-25% of HNO3, 3-10% of hydroxyethylidene diphosphonic acid, 1-2% of HF, 0.5-1.5% of JFC, 0.03-0.1% of nonionic polyacrylamide, 0.1-0.5% of corrosion inhibitor L-5 and the balance of water. The agent is mainly composed of organic aicd, a corrosion inhibitor, a cosolvent, a penetrating agent and other mixtures and is specially used for cleaning the aluminium equipment, the pH value of the agent is acidic and metals is not corroded, and a passivation coating is formed on the surface of metal aluminium at the time of cleaning so that cleaning and passivation can be completed by one step.
Description
Technical field
The present invention relates to a kind of chemical, specifically, relate to a kind of clean-out system of special cleaning aluminium equipment.
Technical background
In the daily industrial production, aluminium equipment will reduce heat exchanger effectiveness greatly in case knot scales, and reduce cooling performance, and etching apparatus shortens service life of equipment, jeopardizes safety in production.The kind of common dirt has carbonate deposit, sulfate scale, silicate scale, mixing incrustation scale, red stone dirt, grease etc.In order to clean different incrustation scales, will select various strong acid for use usually, but a lot of acid is too big to the corrodibility of aluminium, such as, also there is not good inhibiter to alleviate the corrosion of hydrochloric acid at present to aluminium, often there is cleaning company to wash aluminium equipment bad.Remove the dirt than indissoluble that knot is given birth in the aluminium equipment up hill and dale, this is a great problem of puzzlement aluminium equipment treatment of dirt always.
Summary of the invention
Technical purpose of the present invention is to overcome an above difficult problem, and special cleaning agent for aluminium equipment and scheme are provided, and can clean the various indissoluble dirts on the aluminium equipment effectively.
The technical scheme of special cleaning agent for aluminium equipment of the present invention is such: it comprises the HNO of the raw material of following weight ratio: 15-25%
3, 3-10% the HF, 0.5-1.5%JFC, the non-ionic polyacrylamide of 0.03-0.1%, the inhibiter L-5 of 0.1-0.5% of hydroxy ethylene diphosphonic acid, 1-2%, all the other are water.
This product is a light yellow transparent liquid.
Be that starting material of the present invention are explained below:
Nitric acid (HNO
3): nitric acid can generate soluble product with incrustation scale and corrosion product, and there is passivation the metallic surface.
HEDP (HEDP): can be miscible with water; Has good scale effect; Acid and alkali-resistance can form stable complex compound with multiple metals ions such as iron, copper, aluminium zinc, ability dissolution of metals oxide on surface; Being the Scale inhibitors and the inhibiter of boiler and switching heat-exchanger, is the dirt dispersion agent of circulating water system.
Hydrofluoric acid: hydrofluoric acid not only can dissolve silicates dirt, and can quicken a-Fe
2O
3And magnetic Fe
3O
4Segregation, so be the good clean-out system of boiler mill scale, iron dirt, iron rust.Hydrofluoric acid and Fe
3O
4Carry out fluorine one oxygen exchange during contact earlier, that continues carries out F
-Complexing action.The F that generates by disassociation
-Ion has a pair of lone electron pair, very easy inserting with Fe
3+In the unoccupied orbital for the valence shell of central ion, form the complex compound that O joins key, i.e. iron one iron one sodium aluminum fluoride, thus make the red stone dissolving.
JFC (AEO): osmosis is arranged, and also is to have a fixed hydrophilic and oleophilic group, aligns at the surface energy of solution, and the material that surface tension is significantly descended.
Nonionic PAM (SEPIGEL 305): be linear polymer, have the effect of flocculation, dispersion, thickening, bonding, film forming, gel, stable colloid with the low ion degree of high-molecular weight.
Inhibiter L-5: be the agent of nitric acid special efficacy special corrosion.
Accommodation of the present invention: be primarily aimed at aluminium equipment, device.
Consumption of the present invention: 100% of the container water yield.
Multiple mixture such as the main organic acid of this reagent, inhibiter, solubility promoter, permeate agent is formed; Be exclusively used in the cleaning aluminium equipment, medicament pH value is acid, but does not corrode metallic aluminium; Can form passive film on the metallic aluminium surface when cleaning, cleaning and one step of passivation are accomplished.
Method of use of the present invention:
Consumption: add medicament stoste according to dirt amount and thickness, hardness situation, perhaps by the on-the-spot scheme that adds of working out of technician.
Add by the recycle pump suction port, constitute circulation.Perhaps spray, also can soak.
Based on dirt amount operation 4 to 8 hours, flow velocity was fast, and cleaning speed is also fast, and blowdown fast gets final product with the clean equipment of a large amount of flushing with clean water more then.
Single devices can be soaked or spray Cleaning for High Capacity in this way, treats dirt all after the dissolving, and water washes down and gets final product.
Embodiment
Embodiment 1:
Get the HNO of the raw material 15% of following weight ratio
3, 10% hydroxy ethylene diphosphonic acid, 2% HF, 1.5%JFC, 0.03% non-ionic polyacrylamide, 0.1% inhibiter L-5, add water to 100% and get final product.
Adopt special cleaning agent for aluminium equipment stoste spray, flushing, intermittently hydro-peening is 3 times, and dirt all cleans up, and has formed the fine and close passive film of one deck in equipment surface, and the equipment that guaranteed is in does not have the good running status of dirt.
Embodiment 2:
Get the HNO of the raw material 25% of following weight ratio
3, 3% hydroxy ethylene diphosphonic acid, 1% HF, 0.5%JFC, 0.1% non-ionic polyacrylamide, 0.5% inhibiter L-5, add water to 100% and get final product.
Embodiment 3:
Get the HNO of the raw material 20% of following weight ratio
3, 5% hydroxy ethylene diphosphonic acid, 1.6% HF, 1% JFC, 0.05% nonionic PAM, 0.3% inhibiter L-5, add water to 100%.
Claims (1)
1. a special cleaning agent for aluminium equipment is characterized in that, it comprises the HNO of the raw material of following weight ratio: 15-25%
3, 3-10% the HF, 0.5-1.5%JFC, the non-ionic polyacrylamide of 0.03-0.1%, the inhibiter L-5 of 0.1-0.5% of hydroxy ethylene diphosphonic acid, 1-2%, all the other are water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102180087A CN101899667B (en) | 2010-06-28 | 2010-06-28 | Special cleaning agent for aluminium equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102180087A CN101899667B (en) | 2010-06-28 | 2010-06-28 | Special cleaning agent for aluminium equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899667A CN101899667A (en) | 2010-12-01 |
| CN101899667B true CN101899667B (en) | 2012-05-23 |
Family
ID=43225572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102180087A Expired - Fee Related CN101899667B (en) | 2010-06-28 | 2010-06-28 | Special cleaning agent for aluminium equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101899667B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806009A (en) * | 2013-12-16 | 2014-05-21 | 许桂顺 | Neutral sulfate cleaning agent |
| CN105839119B (en) * | 2016-06-03 | 2018-01-02 | 芜湖县富园食品有限公司 | Stainless steel cleaner material compositions, stainless steel cleaner and its preparation method and application |
| CN106835165A (en) * | 2017-03-06 | 2017-06-13 | 上海赛敏环保科技有限公司 | Aluminium alloy removes mildew cleaning agent and Cleaning application method |
| US11434573B2 (en) * | 2017-12-12 | 2022-09-06 | Chemetall Gmbh | Boric acid-free composition for removing deposits containing cryolite |
| CN109465242A (en) * | 2018-10-31 | 2019-03-15 | 安徽东耀建材有限公司 | A kind of method for cleaning of the aluminium chassis of hollow glass |
| CN111892996A (en) * | 2020-08-13 | 2020-11-06 | 华阳-恩赛有限公司 | Phosphorus-free acidic cleaning agent, preparation method and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584943A (en) * | 1987-06-01 | 1996-12-17 | Henkel Corporation | Cleaning and surface conditioning of formed metal surfaces |
| CN101012415B (en) * | 2007-02-01 | 2011-04-20 | 大连三达奥克化学有限公司 | Safety on-line contaminant removing cleaning agent |
| CN101555441B (en) * | 2008-04-09 | 2012-03-21 | 中国神华能源股份有限公司 | Cleaning agent and cleaning process of GGH heat exchange component |
| CN101565660B (en) * | 2009-06-02 | 2011-08-17 | 董宇新 | Organic descaling composition, preparation method and application thereof |
-
2010
- 2010-06-28 CN CN2010102180087A patent/CN101899667B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101899667A (en) | 2010-12-01 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20120628 |