CN111926339A - Chemical stainless steel cleaning agent and preparation method thereof - Google Patents
Chemical stainless steel cleaning agent and preparation method thereof Download PDFInfo
- Publication number
- CN111926339A CN111926339A CN202010742045.1A CN202010742045A CN111926339A CN 111926339 A CN111926339 A CN 111926339A CN 202010742045 A CN202010742045 A CN 202010742045A CN 111926339 A CN111926339 A CN 111926339A
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- stainless steel
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Classifications
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- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
Abstract
The invention discloses a chemical stainless steel cleaning agent and a preparation method thereof, belongs to the technical field of chemical cleaning, particularly relates to the technical field of stainless steel cleaning, and aims to solve the problem that the existing cleaning agent has a risk of secondary corrosion to stainless steel due to strong alkalinity. The surface active agent plays a role in degreasing and removing grease on the surface of the stainless steel, the citric acid can prolong the service life of the cleaning agent, the cleaning agent can be repeatedly used and can also play a role in covering odor, the oxalic acid can prolong the service life of the cleaning agent and can play a role in precipitating iron ions, oxides, oil stains and the like on the surface of the stainless steel are removed through the surface active agent, ethanol, acid, sodium molybdate and triethanolamine, the sodium molybdate and the triethanolamine are adsorbed on the surface of the cleaned stainless steel to generate a passivation film, and the corrosion inhibitor is combined to prevent secondary corrosion on the stainless steel.
Description
Technical Field
The invention discloses a chemical stainless steel cleaning agent and a preparation method thereof, belongs to the technical field of chemical cleaning, and particularly relates to the technical field of stainless steel cleaning.
Background
Stainless steel is short for stainless acid-resistant steel, and steel grade which is resistant to weak corrosive media such as air, steam and water or has stainless property is called stainless steel. With the development of socio-economy, various devices made of stainless steel are used in various fields due to their relatively stable metal characteristics. However, in the operation process of the machine, a layer of oxide scale is formed on the surface of the metal due to the heat treatment, friction, abrasion and other operations, and when the machine is operated and used for a long time, dust or grease dirt is adsorbed on the surface of the metal, so that a chemical reaction is generated on the surface of the metal to form a thin and compact oxide film, the main components of which are chromium oxide, nickel oxide and indissolvable iron chromium oxide. When there is scale or oxidation marks on the surface of the mechanical equipment made of stainless steel material, the original corrosion resistance is greatly reduced. Therefore, in order to ensure the cleanness and corrosion resistance of the surface of the stainless steel equipment, the surface of the stainless steel equipment must be cleaned and kept clean regularly by using a cleaning agent.
The greasy dirt on the surface of the stainless steel part can be removed in various ways before packaging, such as soaking or washing in cleaning agents such as alkaline degreasing liquid, oily cleaning agents and the like.
Application number CN201811442836.1 discloses a metal part cleaning agent, which comprises the following components in percentage by mass: 14 to 30 percent of propylene glycol; 15 to 22 percent of sodium gluconate; 8 to 15 percent of triethanolamine; 12 to 28 percent of sodium hydroxide; 3-10% of fatty alcohol-polyoxyethylene ether sodium sulfate; the balance of water. The metal part cleaning agent disclosed by the invention is strong in permeability and detergency, and can effectively remove various dirt and impurities adhered to the surface of a metal part, so that the processing precision of metal equipment is guaranteed; the metal part cleaning agent disclosed by the invention has no corrosivity on metal parts, is easy to rinse, is biodegradable, and is environment-friendly and free of organic solvents such as benzene, halogenated hydrocarbon and the like and toxic and harmful substances.
The cleaning agent contains 12-28% of sodium hydroxide, has strong alkalinity, removes the surface stains of the stainless steel, and has the risk of secondary corrosion to the stainless steel if the cleaning is not proper.
Disclosure of Invention
The invention aims to: the chemical stainless steel cleaning agent and the preparation method thereof are provided to solve the problem that the existing cleaning agent has secondary corrosion risk to stainless steel due to strong alkalinity.
The technical scheme adopted by the invention is as follows:
the chemical stainless steel cleaning agent comprises, by weight, 8-16 parts of a surfactant, 2-7 parts of citric acid, 2-8 parts of oxalic acid, 2-10 parts of acetic acid, 2-10 parts of tartaric acid, 0.2-0.6 part of allicin, 6-10 parts of ethanol, 2-6 parts of a defoaming agent, 2-4 parts of a corrosion inhibitor, 0.1-0.2 part of sodium molybdate, 2-6 parts of triethanolamine and 10-60 parts of water.
In the technical scheme of the application, the surfactant plays a role in degreasing, grease on the surface of the stainless steel is removed, citric acid can prolong the service life of the cleaning agent and can be used repeatedly, the function of covering odor can also be played, oxalic acid can prolong the service life of the cleaning agent and can play a role in precipitating iron ions, citric acid, oxalic acid, acetic acid and tartaric acid are mixed together to form an acidic cleaning agent, so that oxides and emulsified oil on the surface of the stainless steel are dissolved, cleaning is completed, the corrosion effect of the cleaning agent on the stainless steel material can be effectively relieved under the action of the corrosion inhibitor, dirt on the surface of the stainless steel can be effectively removed by ethanol, the arrangement of the defoaming agent can play a role in reducing foam, the cleaning difficulty is reduced, allicin has the inhibiting and killing effects on fungi, bacteria and algae, sodium molybdate and triethanolamine of the application can adsorb on the surface of the cleaned stainless steel and generate a passivation film, and the corrosion inhibitor is combined to prevent secondary corrosion to the stainless steel.
Preferably, the cleaning agent comprises, by weight, 12 parts of a surfactant, 4 parts of citric acid, 5 parts of oxalic acid, 6 parts of tartaric acid, 0.4 part of allicin, 8 parts of ethanol, 4 parts of a defoaming agent, 3 parts of a corrosion inhibitor, 0.15 part of sodium molybdate, 4 parts of triethanolamine and 35 parts of water.
Preferably, the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether in a mass ratio of 1-3: 2-5.
More preferably, the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether in a mass ratio of 2: 3.
Preferably the anti-foaming agent comprises one or more of tributyl phosphate, silicone and oleic acid.
Preferably, the defoamer comprises silicone and oleic acid.
Preferably, the corrosion inhibitor comprises one or more of sodium silicate, ammonium carbonate, sodium benzoate or urea.
Preferably, the corrosion inhibitor comprises sodium silicate, ammonium carbonate and urea.
Preferably, the corrosion inhibitor comprises sodium silicate, sodium benzoate and urea.
A preparation method of a chemical stainless steel cleaning agent comprises the following steps:
step 1, respectively dissolving a surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor in parts by weight in water to obtain respective solutions;
and 2, mixing the solutions of the surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor obtained in the step 1, and stirring for 10-45 minutes to obtain the water-based organic silicon oil.
Preferably, the stirring time in step 2 is 28 minutes.
In the technical scheme of the application, all the raw materials are commercially available.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, oxides, oil stains and the like on the surface of the stainless steel are removed by the surfactant, ethanol, acid, sodium molybdate and triethanolamine, the sodium molybdate and the triethanolamine are adsorbed on the surface of the cleaned stainless steel and generate a layer of passive film, and the corrosion inhibitor is combined to prevent the stainless steel from being secondarily corroded;
2. the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether, the sodium dodecyl sulfate has good emulsibility, air bubble property, water solubility, biodegradability, hard water resistance and low price, the sodium dodecyl benzene sulfonate is neutral, is not easy to oxidize, has strong foaming power and strong detergency, and the complex formulation of the three components can make refractory oxide skin, sinter, dirt, paraffin, heavy oil, heavy rust and the like attached to stainless steel loose, and make the undesirable substances on the surface of the stainless steel fall off quickly under the action of citric acid, oxalic acid, acetic acid and tartaric acid;
3. the defoaming agent can play a role in reducing foam, so that the cleaning difficulty is reduced;
4. the citric acid can prolong the service life of the cleaning agent, can be repeatedly used and can also play a role in covering the taste, the oxalic acid can not only prolong the service life of the cleaning agent, but also play a role in precipitating iron ions, and the citric acid, the oxalic acid, the acetic acid and the tartaric acid are mixed together to form an acidic cleaning agent, so that oxides on the surface of the stainless steel and emulsified oil are dissolved to finish cleaning;
5. allicin has inhibiting and killing effects on fungi, bacteria and algae;
6. the corrosion of the cleaning agent on the stainless steel material can be effectively relieved through the action of the corrosion inhibitor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A chemical stainless steel cleaning agent comprises, by weight, 8 parts of a surfactant, 2 parts of citric acid, 2 parts of oxalic acid, 2 parts of acetic acid, 2 parts of tartaric acid, 0.2 part of allicin, 6 parts of ethanol, 2 parts of a defoaming agent, 2 parts of a corrosion inhibitor, 0.1 part of sodium molybdate, 2 parts of triethanolamine and 10 parts of water; the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether in a mass ratio of 1: 2; the defoaming agent comprises organic silicon and oleic acid in a mass ratio of 1: 1; the corrosion inhibitor comprises sodium benzoate and urea in a mass ratio of 1: 2;
a preparation method of a chemical stainless steel cleaning agent comprises the following steps:
step 1, respectively dissolving a surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor in parts by weight in water to obtain respective solutions;
and 2, mixing the solutions of the surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor obtained in the step 1, and stirring for 10 minutes to obtain the water-based anti-foaming agent.
Example 2
Based on the embodiment 1, the chemical stainless steel cleaning agent comprises, by weight, 12 parts of a surfactant, 4 parts of citric acid, 5 parts of oxalic acid, 6 parts of tartaric acid, 0.4 part of allicin, 8 parts of ethanol, 4 parts of a defoaming agent, 3 parts of a corrosion inhibitor, 0.15 part of sodium molybdate, 4 parts of triethanolamine and 35 parts of water; the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether in a mass ratio of 2: 3; the defoaming agent comprises tributyl phosphate, organic silicon and oleic acid in a mass ratio of 1: 1; the corrosion inhibitor comprises sodium silicate, ammonium carbonate, sodium benzoate and urea in a mass ratio of 1: 2;
a chemical stainless steel cleaning agent is prepared by mixing respective solutions of corrosion inhibitors and stirring for 28 minutes, wherein the rest steps are as described in example 1.
Example 3
Based on the embodiment 1, the chemical stainless steel cleaning agent comprises, by weight, 8-16 parts of a surfactant, 7 parts of citric acid, 8 parts of oxalic acid, 10 parts of acetic acid, 10 parts of tartaric acid, 0.6 part of allicin, 10 parts of ethanol, 6 parts of a defoaming agent, 4 parts of a corrosion inhibitor, 0.2 part of sodium molybdate, 6 parts of triethanolamine and 60 parts of water; the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether in a mass ratio of 3: 5; the defoaming agent comprises tributyl phosphate and organic silicon in a mass ratio of 1: 1; the corrosion inhibitor comprises sodium silicate and urea with the mass ratio of 1: 3;
a chemical stainless steel cleaning agent is prepared by mixing solutions of corrosion inhibitors and stirring for 45 minutes as described in example 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The chemical stainless steel cleaning agent is characterized by comprising, by weight, 8-16 parts of a surfactant, 2-7 parts of citric acid, 2-8 parts of oxalic acid, 2-10 parts of acetic acid, 2-10 parts of tartaric acid, 0.2-0.6 part of allicin, 6-10 parts of ethanol, 2-6 parts of a defoaming agent, 2-4 parts of a corrosion inhibitor, 0.1-0.2 part of sodium molybdate, 2-6 parts of triethanolamine and 10-60 parts of water.
2. The chemical stainless steel cleaning agent as claimed in claim 1, comprising 12 parts by weight of surfactant, 4 parts by weight of citric acid, 5 parts by weight of oxalic acid, 6 parts by weight of tartaric acid, 0.4 part by weight of allicin, 8 parts by weight of ethanol, 4 parts by weight of defoaming agent, 3 parts by weight of corrosion inhibitor, 0.15 part by weight of sodium molybdate, 4 parts by weight of triethanolamine and 35 parts by weight of water.
3. The chemical stainless steel cleaning agent as claimed in claim 1 or 2, wherein the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether at a mass ratio of 1-3: 2-5.
4. The chemical stainless steel cleaning agent as claimed in claim 3, wherein the surfactant comprises sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether at a mass ratio of 2: 3.
5. The chemical stainless steel cleaning agent according to claim 1 or 2, wherein the defoaming agent comprises one or more of tributyl phosphate, silicone and oleic acid.
6. The chemical stainless steel cleaning agent according to claim 1 or 2, wherein the corrosion inhibitor comprises one or more of sodium silicate, ammonium carbonate, sodium benzoate or urea.
7. A preparation method of a chemical stainless steel cleaning agent as claimed in any one of claims 1-6, characterized by comprising the following steps:
step 1, respectively dissolving a surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor in parts by weight in water to obtain respective solutions;
and 2, mixing the solutions of the surfactant, citric acid, oxalic acid, acetic acid, tartaric acid, allicin, ethanol, a defoaming agent and a corrosion inhibitor obtained in the step 1, and stirring for 10-45 minutes to obtain the water-based organic silicon oil.
8. The preparation method of the chemical stainless steel cleaning agent according to claim 7, wherein the stirring time in the step 2 is 28 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010742045.1A CN111926339A (en) | 2020-07-29 | 2020-07-29 | Chemical stainless steel cleaning agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010742045.1A CN111926339A (en) | 2020-07-29 | 2020-07-29 | Chemical stainless steel cleaning agent and preparation method thereof |
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| CN111926339A true CN111926339A (en) | 2020-11-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112663070A (en) * | 2020-12-24 | 2021-04-16 | 中山市优贝科技股份有限公司 | Stainless steel surface repairing liquid |
| CN115198280A (en) * | 2022-06-14 | 2022-10-18 | 中核第四研究设计工程有限公司 | Cleaning agent for serial cleaning of stainless steel clean pipelines and preparation method thereof |
| CN115216778A (en) * | 2022-07-29 | 2022-10-21 | 北京蓝星清洗有限公司 | Phosphorus-free composition with carbon steel material cleaning function |
| CN115287039A (en) * | 2022-01-28 | 2022-11-04 | 延边群益科技发展有限责任公司 | Odor agent and preparation method and application thereof |
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