CN115386885A - Preparation method and application of acidic cleaning agent - Google Patents
Preparation method and application of acidic cleaning agent Download PDFInfo
- Publication number
- CN115386885A CN115386885A CN202211061518.7A CN202211061518A CN115386885A CN 115386885 A CN115386885 A CN 115386885A CN 202211061518 A CN202211061518 A CN 202211061518A CN 115386885 A CN115386885 A CN 115386885A
- Authority
- CN
- China
- Prior art keywords
- agent
- acid
- cleaning agent
- acidic cleaning
- acidic
- 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.)
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Classifications
-
- 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
- C23G1/068—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors compounds containing a C=C bond
-
- 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
-
- 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
- C23G1/083—Iron or steel solutions containing H3PO4
-
- 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
- C23G1/10—Other heavy metals
- C23G1/103—Other heavy metals copper or alloys of copper
Abstract
The invention discloses an acidic cleaning agent, a preparation method and application thereof. The acidic cleaning agent comprises: 5-30% of acid agent, (b) 1-5% of chelating agent, (c) 1-5% of surfactant, (d) 1-5% of corrosion inhibitor, (e) 0.01-0.05% of defoaming agent, and (f) the balance of deionized water. The preparation method of the acidic cleaning agent comprises the following steps: and sequentially adding the components a-e into deionized water, stirring and dissolving for 1-2 hours to obtain the acidic cleaning agent. The acidic cleaning agent can be used for cleaning oxides such as rust patina such as iron oxide, copper oxide, calcium oxide and magnesium oxide on the surface of instruments, and inorganic salts such as calcium carbonate and magnesium carbonate for cleaning acid-resistant surfaces, and can also be used for neutralizing agents after being cleaned by alkaline cleaning agents and neutralizing alkaline substances. The prepared acidic cleaning agent has high speed of removing oxides and inorganic salts, does not damage acid-resistant materials such as stainless steel instruments and the like, and is environment-friendly.
Description
Technical Field
The invention belongs to an acidic cleaning agent, a preparation method and application thereof.
Background
The acidic cleaning agent is used as a class of cleaning agent and is divided independently, the main reason is that the cleaning object and mechanism of the acidic cleaning agent are different from those of a common alkaline cleaning agent, the alkaline cleaning agent is mainly used for cleaning grease substances, the tension of water is reduced mainly by virtue of a surfactant, the cleaning agent is enabled to contact the surface of stains more effectively, and the oily stains are dissolved in the water by virtue of the characteristics of amphoteric molecules, so that the cleaning purpose is achieved. The acidic cleaning agent is essentially to dissolve these insoluble substances by the reaction of an acid with an inorganic salt and a metal oxide and then to clean them. The most main purpose of the acidic cleaning agent is to dissolve oxides such as rust and patina and insoluble carbonate accumulated on some boilers and water treatment equipment, and the other most purpose is to be used as a neutralizing agent after being cleaned by an alkaline cleaning agent.
Many acidic cleaners are now effective in removing rust, especially large areas of rust, but are corrosive to instruments, which is a contradiction, especially medical and surgical instruments are expensive, so that such strongly acidic cleaners are not suitable for removing rust or for strongly corrosive acidic cleaners. However, the mild acid cleaning agent is often long in rust removal time and low in efficiency, even the rust removal is incomplete, and the use requirement cannot be met. Mild pickling cleaners also do not meet the use of alkaline neutralizers.
In order to solve the problems of the existing pickling cleaning agent, the invention develops a general formula and a preparation method of the acid cleaning agent, and the high-efficiency acid cleaning agent with different purposes can be prepared by flexibly adjusting the formula.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a general formula design and a preparation method of an acid cleaning agent, and the high-efficiency acid cleaning agent with different purposes can be prepared by flexible adjustment.
In order to achieve the purpose of the invention, the technical scheme is that the acid cleaning agent comprises: 5-30% of acid agent, (b) 1-5% of chelating agent, (c) 1-5% of surfactant, (d) 1-5% of corrosion inhibitor, (e) 0.01-0.05% of defoaming agent, and (f) the balance of deionized water. The preparation method of the acidic cleaning agent comprises the following steps: the components a to e are sequentially added into deionized water and stirred to be dissolved for 1 to 2 hours.
(1) The acid agent comprises but is not limited to one or a mixture of more than two of 36% concentrated hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, citric acid, oxalic acid, acetic acid and sulfamic acid, and the total addition amount of the acid accounts for 5-30% of the acid cleaning agent by weight, and preferably 15-30%.
(2) The chelating agent comprises one or more than two of sodium citrate, sodium gluconate, sodium borate and EDTA disodium, and the total addition amount of the chelating agent accounts for 1-5% by weight of the acid cleaning agent, preferably 3-5% by weight.
(3) The surfactant comprises one or more than two of alkyl glycoside, fatty alcohol-polyoxyethylene ether and isomeric alcohol ether, and the total addition amount of the surfactant accounts for 1-5% of the acid cleaning agent by weight, preferably 3-5% of the acid cleaning agent by weight.
(4) The corrosion inhibitor comprises one or more than two of the following mixture, urotropine and sodium benzotriazole, and the total addition amount accounts for 1-5% of the acid cleaning agent by weight, preferably 3-5%.
(5) The defoaming agent comprises one or more than two of the following components, namely an organic silicon defoaming agent and a modified polyether defoaming agent, and the addition amount of the defoaming agent accounts for 0.001-0.005% of the total mass of the acid cleaning agent.
(6) The preparation method of the acidic cleaning agent comprises the following steps: and sequentially adding the components a-e into deionized water, stirring and dissolving for 1-2 hours to obtain the acidic cleaning agent.
(7) The use of the acidic cleaning agent comprises the following steps: oxides such as rust patina such as iron oxide, copper oxide, calcium oxide and magnesium oxide used for cleaning surfaces of instruments, and inorganic salts such as calcium carbonate, magnesium carbonate used for cleaning acid-resistant surfaces, and also neutralizing agents used for neutralizing alkaline cleaners after washing.
The acidic cleaning agent prepared according to different application scenes can efficiently remove rust and scale without damaging instruments, can efficiently neutralize alkali residues in the alkaline cleaning agent, but cannot damage cleaning objects, and cannot generate wastewater which is difficult to treat.
Detailed Description
The technical scheme of the invention is further detailed and completely explained by combining the embodiment, the comparative example and the application example.
Example 1
| Starting materials | Content% | Description of the raw materials |
| 36% hydrochloric acid | 20 | Acid agent |
| 85% phosphoric acid | 10 | Acid agent |
| Citric acid sodium salt | 5 | Chelating agents |
| Coconut oil fatty alcohol polyoxyethylene ether | 5 | Surface active agent |
| Urotropine | 3 | Corrosion inhibitor |
| Modified polyether | 0.5 | Defoaming agent |
| Deionized water | Balance of |
Example 2
| Starting materials | Content% | Description of the raw materials |
| 85% phosphoric acid | 20 | Acid agent |
| Citric acid | 10 | Acid agent |
| Citric acid sodium salt | 4 | Chelating agents |
| Alkyl glycosides | 5 | Surface active agent |
| Urotropine | 3 | Corrosion inhibitor |
| Modified polyether | 0.5 | Defoaming agent |
| Deionized water | Balance of |
Example 3
| Starting materials | Content% | Description of the raw materials |
| Oxalic acid | 10 | Acid agent |
| Citric acid | 20 | Acid agent |
| Sodium gluconate | 5 | Chelating agents |
| C7 isomeric alcohol ethers | 5 | Surface active agent |
| Benzotriazole sodium salt | 3 | Corrosion inhibitor |
| Organosilicon modified polyether | 0.5 | Defoaming agent |
| Deionized water | Balance of |
Example 4
| Raw materials | Content% | Description of the raw materials |
| Sulfamic acid | 10 | Acid agent |
| Citric acid | 20 | Acid agent |
| EDTA disodium salt | 3 | Chelating agents |
| AEO-09 | 3 | Surface active agent |
| Benzotriazole sodium salt | 2 | Corrosion inhibitor |
| Organosilicon modified polyether | 0.5 | Defoaming agent |
| Deionized water | Balance of |
Example 5
| Starting materials | Content% | Description of the raw materials |
| 85% phosphoric acid | 30 | Acid agent |
| Citric acid sodium salt | 5 | Chelating agents |
| Sodium gluconate | 3 | Chelating agents |
| AEO-09 | 2 | Surface active agent |
| Benzotriazole sodium salt | 2 | Corrosion inhibitor |
| Organosilicon modified polyether | 0.5 | Defoaming agent |
| Deionized water | Balance of |
The acidic cleaning agent of examples 1 to 5 was prepared by dissolving the raw materials in water sequentially under stirring and holding for 1 to 2 hours.
The acid cleaning agent obtained in the embodiment 1-4 is used for cleaning metal oxides and scales, has good cleaning effect, has no fine corrosion and rust return on the surface of equipment, and can play a role in lubricating and protecting the equipment after rust removal by using the nano water-based emulsion lubricant disclosed by the company.
The acidic cleaning agent obtained in example 5 was used as a neutralizer for effectively neutralizing the alkalinity of the alkaline cleaning agent after cleaning and for removing the inorganic oxides and inorganic salts in the rust yellow spot scale which could not be cleaned with the alkaline cleaning agent.
Finally, it should be pointed out here that: the above are only some of the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and the insubstantial modifications and adaptations made by those skilled in the art based on the above description of the present invention are within the scope of the present invention.
Claims (8)
1. An acidic cleaning agent comprising: 5-30% of acid agent, (b) 1-5% of chelating agent, (c) 1-5% of surfactant, (d) 1-5% of corrosion inhibitor, (e) 0.01-0.05% of defoaming agent, and (f) the balance of deionized water.
2. An acidic cleaning formulation according to claim 1 wherein the acidic agent comprises, but is not limited to, one or a mixture of two or more of 36% concentrated hydrochloric acid, nitric acid, sulphuric acid, phosphoric acid, citric acid, oxalic acid, acetic acid and sulphamic acid, the total amount of acid added being 5-30% by weight of the acidic cleaning formulation, preferably 15-30% by weight.
3. An acidic cleaning agent according to claim 1, wherein said chelating agent comprises, but is not limited to, one or a mixture of two or more of sodium citrate, sodium gluconate, sodium borate and disodium EDTA, and the total amount of chelating agent added is 1-5% by weight, preferably 3-5% by weight of the acidic cleaning agent.
4. An acidic cleaning agent according to claim 1 wherein the surfactant comprises, but is not limited to, one or a mixture of two or more of alkyl glycoside, fatty alcohol polyoxyethylene ether, isomeric alcohol ether, the total amount of surfactant added being 1-5%, preferably 3-5% by weight of the acidic cleaning agent.
5. An acidic cleaning agent according to claim 1, wherein the corrosion inhibitor comprises one or more of, but not limited to, urotropine and sodium benzotriazole, and the total addition amount is 1-5% by weight, preferably 3-5% by weight of the acidic cleaning agent.
6. An acidic cleaning agent according to claim 1, wherein said defoaming agent comprises one or more selected from the group consisting of, but not limited to, silicone defoaming agent, modified polyether defoaming agent, and the amount of said defoaming agent is 0.001-0.005% by mass based on the total mass of said acidic cleaning agent.
7. A process for preparing an acidic cleaning agent as claimed in any one of claims 1 to 6, which comprises: and sequentially adding the components a-e into deionized water, stirring and dissolving for 1-2 hours to obtain the acidic cleaning agent.
8. Use of an acidic cleaning agent as claimed in any of claims 1 to 6 comprising: oxides such as rust patina such as iron oxide, copper oxide, calcium oxide and magnesium oxide used for cleaning the surface of instruments, and inorganic salts such as calcium carbonate and magnesium carbonate used for cleaning acid-resistant surfaces, and neutralizing agents used after washing with alkaline cleaners for neutralizing alkaline substances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061518.7A CN115386885A (en) | 2022-09-01 | 2022-09-01 | Preparation method and application of acidic cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061518.7A CN115386885A (en) | 2022-09-01 | 2022-09-01 | Preparation method and application of acidic cleaning agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115386885A true CN115386885A (en) | 2022-11-25 |
Family
ID=84124341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211061518.7A Withdrawn CN115386885A (en) | 2022-09-01 | 2022-09-01 | Preparation method and application of acidic cleaning agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115386885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820348A (en) * | 2022-12-13 | 2023-03-21 | 江西瑞思博新材料有限公司 | Efficient phosphorus-containing cleaning agent and preparation method thereof |
-
2022
- 2022-09-01 CN CN202211061518.7A patent/CN115386885A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820348A (en) * | 2022-12-13 | 2023-03-21 | 江西瑞思博新材料有限公司 | Efficient phosphorus-containing cleaning agent and preparation method thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20221125 |
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| WW01 | Invention patent application withdrawn after publication |