CN1920099A - Green cleaning agent and application - Google Patents
Green cleaning agent and application Download PDFInfo
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- CN1920099A CN1920099A CN 200510047330 CN200510047330A CN1920099A CN 1920099 A CN1920099 A CN 1920099A CN 200510047330 CN200510047330 CN 200510047330 CN 200510047330 A CN200510047330 A CN 200510047330A CN 1920099 A CN1920099 A CN 1920099A
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- clean
- cleaning agent
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- out system
- scavenging solution
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses the green cleaning agent and application. It can be used to clean coated steel. The cleaning fluids are dilute hydrochloric acid or dilute sulphuric acid, whose concentration is 0.10-1.0mol/L, 0.010g-2.0g cleaning agent is added per liter cleaning fluid, and the coated steel is immersed for 15min-3hours. The invention has the advantages of low price, low consumption, high efficiency and strong continuous action ability. The invention has nontoxic for environment and biology, so it has wide foreground.
Description
Technical field
The present invention relates to the clean-out system production technical field, specifically a kind of green cleaning agent and application.
Background technology
Galvanizing, aluminium zinc and al-zn alloy coating steel are used more and more widely, in its product processing and application process, dilute sulphuric acid commonly used or dilute hydrochloric acid carry out surface cleaning, to remove the oxide film or the corrosion product on surface, harmful corrosive that consumes excessively and prevent of metal or acid takes place in the acid cleaning process, and adding the clean-out system with corrosion inhibition in acid is effective means.
In the clean-out system commonly used at present, mainly comprise the inorganic inhibition compound that contains poisonous chromate, and some organophosphor compounds, its discharging may cause the eutrophication of water body.The clean-out system of existing same domain mostly has toxic side effect, does not possess the market competitiveness.
Therefore, develop new environmental protection, cheapness, wide material sources, non-harmful clean-out system are the new directions of present clean-out system exploitation.
Summary of the invention
The object of the present invention is to provide a kind of environmental protection that has, cheapness, wide material sources, the green cleaning agent of nuisanceless characteristics is in order to prevent unnecessary metal or the acid solution consumption in acid cleaning process of galvanizing, aluminium zinc and al-zn alloy coating steel and goods thereof; A kind of application of green cleaning agent also is provided.
Technical scheme of the present invention is as follows:
A kind of green cleaning agent, its composition are acridine; Claim dibenzopyridine again, be widely used in the preparation of dyestuff and medicine.The application of described green cleaning agent is cleaned electroplated steel products with the scavenging solution submergence that is added with clean-out system; Wherein scavenging solution can be dilute hydrochloric acid or the dilute sulphuric acid that concentration is 0.10 ~ 1.0mol/L, and it is 0.010g-2.0g that every liter of scavenging solution adds cleaning dosage, submergence 15 minutes to 3 hours; Steel to be cleaned are galvanizing, aluminium zinc or al-zn alloy coating material.
The principle of the invention is: acridine is the heterogeneous ring compound with dibenzopyridine structure, and intramolecularly contains atom or atomic groups such as heterocycle, nitrogen, can be adsorbed in galvanizing, aluminium zinc and zinc aluminum alloy coating steel surface effectively, plays corrosion inhibition.
The invention has the beneficial effects as follows:
(1) acridine wide material sources of the present invention, market quotes in 2005 is at 880-5000 unit/kilogram, and cost is lower.
(2) clean-out system of the present invention is nontoxic green cleaning agent, does not have the environmental problem after the use, and is harmless to environment and biological nontoxic, meets the trend of cleaning agent developing, has a good application prospect.
(3) the present invention is used for the cleaning of all kinds of galvanizing, aluminium zinc and al-zn alloy coating steel and products thereof, can effectively suppress harmful corrosion and the consuming of acid solution of metallic matrix in acid, compare with clean-out system commonly used at present, it is low to have consumption, the efficient height, the outstanding advantage that continuous action ability is strong can be used repeatedly.
Embodiment
Describe in detail below in conjunction with specific embodiment:
Embodiment 1
1. preparation clean-out system: the dilute hydrochloric acid of at first getting 100L concentration and be 0.10M is as scavenging solution, and it is stand-by that next adds clean-out system 1g.
2. clean: at ambient temperature, the zn alloy coating material is immersed in 2h in the scavenging solution.
3. by experimental test, acridine is 95% to the highest inhibition efficiency of metal, is shown as clean-out system efficiently.
The present invention carries out the lacing film zero-G test according to GB10124-88 " metallic substance laboratory uniform corrosion total immersion test method ".Action principle of the present invention is: acridine is the heterogeneous ring compound with dibenzopyridine structure, and intramolecularly contains atom or atomic groups such as heterocycle, nitrogen, can be adsorbed in galvanizing, aluminium zinc and zinc aluminum alloy coating steel surface effectively, plays corrosion inhibition.
Embodiment 2
1. clean the preparation clean-out system: the dilute hydrochloric acid of at first getting 100L concentration and be 0.50M is as scavenging solution, and it is stand-by that next adds clean-out system 50g.
2. clean: at ambient temperature, the zn alloy coating material is immersed in 3h in the scavenging solution.
3. by experimental test, acridine is 97% to the highest inhibition efficiency of metal, is shown as clean-out system efficiently.
Embodiment 3
1. clean the preparation clean-out system: the dilute sulphuric acid of at first getting 100L concentration and be 0.80M is as scavenging solution, and it is stand-by that next adds clean-out system 100g.
2. clean: at ambient temperature, the zn alloy coating material is immersed in 2h in the scavenging solution.
3. by experimental test, acridine is 96% to the highest inhibition efficiency of metal, is shown as clean-out system efficiently.
Embodiment 4
1. clean the preparation clean-out system: the dilute sulphuric acid of at first getting 100L concentration and be 1.0M is as scavenging solution, and it is stand-by that next adds clean-out system 200g.
2. clean: at ambient temperature, the zn alloy coating material is immersed in 0.25h in the scavenging solution (15min).
3. by experimental test, acridine is 98% to the highest inhibition efficiency of metal, is shown as clean-out system efficiently.
The present invention is used for the surface cleaning of galvanizing, aluminium zinc and al-zn alloy coating steel and products thereof, can prevent the excessive etch of coated metal and consuming excessively of acid solution in cleaning process.
Claims (4)
1. green cleaning agent, it is characterized in that: its composition is an acridine.
2. application by the described green cleaning agent of claim 1 is characterized in that: clean electroplated steel products with the scavenging solution submergence that is added with clean-out system.
3. by the application of the described green cleaning agent of claim 2, it is characterized in that: wherein scavenging solution can be dilute hydrochloric acid or the dilute sulphuric acid that concentration is 0.10 ~ 1.0mol/L, and it is 0.010g-2.0g that every liter of scavenging solution adds cleaning dosage, submergence 15 minutes to 3 hours.
4. by the application of the described green cleaning agent of claim 2, it is characterized in that: steel to be cleaned are galvanizing, aluminium zinc or al-zn alloy coating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510047330A CN100591804C (en) | 2005-09-30 | 2005-09-30 | Cleaning agent application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510047330A CN100591804C (en) | 2005-09-30 | 2005-09-30 | Cleaning agent application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1920099A true CN1920099A (en) | 2007-02-28 |
| CN100591804C CN100591804C (en) | 2010-02-24 |
Family
ID=37777940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510047330A Expired - Fee Related CN100591804C (en) | 2005-09-30 | 2005-09-30 | Cleaning agent application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100591804C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699677A (en) * | 2019-10-21 | 2020-01-17 | 哈尔滨工业大学（威海） | Self-assembled film and corrosion resistance of methylacridine salt on carbon steel surface |
| CN111270244A (en) * | 2020-03-06 | 2020-06-12 | 哈尔滨工业大学（威海） | 9-substituted acridine carbon steel corrosion inhibitor for oil field |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19535749C1 (en) * | 1995-09-26 | 1996-12-19 | Mueller Kg W | Extrusion die head for prodn. of multi-layer tubular thermoplastic parisons for hollow product mfr. |
-
2005
- 2005-09-30 CN CN200510047330A patent/CN100591804C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699677A (en) * | 2019-10-21 | 2020-01-17 | 哈尔滨工业大学（威海） | Self-assembled film and corrosion resistance of methylacridine salt on carbon steel surface |
| CN111270244A (en) * | 2020-03-06 | 2020-06-12 | 哈尔滨工业大学（威海） | 9-substituted acridine carbon steel corrosion inhibitor for oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100591804C (en) | 2010-02-24 |
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Granted publication date: 20100224 Termination date: 20120930 |