CN111235619B - Efficient nickel-removing cleaning powder after hole sealing of aluminum anode and preparation method thereof - Google Patents
Efficient nickel-removing cleaning powder after hole sealing of aluminum anode and preparation method thereof Download PDFInfo
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- CN111235619B CN111235619B CN202010044155.0A CN202010044155A CN111235619B CN 111235619 B CN111235619 B CN 111235619B CN 202010044155 A CN202010044155 A CN 202010044155A CN 111235619 B CN111235619 B CN 111235619B
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- nickel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
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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
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract
The invention discloses an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 34-50% of citric acid, 22-40% of malic acid, 5-8% of tartaric acid, 14-25% of sodium gluconate and 6-10% of sodium citrate; and mixing the raw materials, and uniformly stirring to obtain the high-efficiency nickel-removing cleaning powder after hole sealing of the aluminum anode. The citric acid has a cleaning effect, the tartaric acid has a chelating effect, the malic acid has an auxiliary cleaning effect, the sodium gluconate has an auxiliary metal ion chelating effect, and the sodium citrate has a pH value adjusting effect, so that the chelating ability to nickel ions is strong, the corrosivity is weak, and the harm of heavy metal ion nickel to human bodies and the pollution to the environment are greatly reduced; the preparation method of the high-efficiency nickel-removing cleaning powder after hole sealing of the aluminum material anode is easy to realize, has high production efficiency, and can quickly produce the nickel-removing cleaning powder with strong chelating capacity for nickel ions, weak corrosivity and good durability.
Description
Technical Field
The invention belongs to the technical field of nickel removal cleaning powder, and particularly relates to high-efficiency nickel removal cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof.
Background
With the rapid development of the electronic industry and people-oriented development concept in recent years, the cleaning and maintenance of electronic components are not only related to the production cost, but also related to the environmental protection and the health problems of operation and users.
On the existing market, the product after most aluminum product positive pole hole sealing all does not remove the nickel washing, and the product behind a lot of positive poles is direct and human skin contact, for example cell-phone, wrist-watch, intelligent bracelet etc. these electronic product all become indispensable instrument in the adult daily life, and the remaining nickel ion in electronic product surface not only can harm operation and user's health, has also caused certain destruction to the environment simultaneously. Therefore, how to reduce the harm of electronic products to human bodies and the pollution to the environment becomes the trend of industry development and the market development demand.
Disclosure of Invention
Aiming at the defects, the invention aims to provide the high-efficiency nickel-removing cleaning powder for the aluminum anode after hole sealing, which has a reasonable formula and a good cleaning effect.
The invention also aims to provide a preparation method of the high-efficiency nickel-removing cleaning powder after hole sealing of the aluminum anode. The method is easy to realize and has high production efficiency. The high-efficiency nickel-removing cleaning powder for sealing the holes of the aluminum material anode prepared by the method has strong chelating capacity for nickel ions and weak corrosivity.
In order to realize the purpose, the technical scheme provided by the invention is as follows:
the high-efficiency nickel-removing cleaning powder for the aluminum material anode after hole sealing comprises the following raw materials in percentage by mass: 34-50% of citric acid, 22-40% of malic acid, 5-8% of tartaric acid, 14-25% of sodium gluconate and 6-10% of sodium citrate.
A preparation method of high-efficiency nickel-removing cleaning powder after hole sealing of an aluminum material anode comprises the following steps:
(1) preparing raw materials, wherein the raw materials comprise the following components in percentage by mass: 34-50% of citric acid, 22-40% of malic acid, 5-8% of tartaric acid, 14-25% of sodium gluconate and 6-10% of sodium citrate;
(2) mixing citric acid, malic acid, tartaric acid, sodium gluconate and sodium citrate, and uniformly stirring to obtain the high-efficiency nickel-removing cleaning powder after sealing the hole of the aluminum anode.
As a preferable embodiment of the present invention, the step (2) specifically includes the following steps: and sequentially adding citric acid, malic acid, tartaric acid, sodium gluconate and sodium citrate into a mechanical stirrer, and stirring for 1-3 hours.
As a preferable scheme of the invention, the content of citric acid is more than or equal to 99.5%, the content of malic acid is more than or equal to 99.3%, the content of tartaric acid is more than or equal to 98.5%, the content of sodium citrate is more than or equal to 99.0%, and the content of sodium gluconate is more than or equal to 98.5%.
The invention has the beneficial effects that: the detergent is reasonable in formula, contains citric acid, malic acid, tartaric acid, sodium gluconate and sodium citrate, wherein the citric acid has a cleaning effect, the tartaric acid has a chelating effect, the malic acid has an auxiliary cleaning effect, the sodium gluconate has an auxiliary metal ion chelating effect, and the sodium citrate has a pH value adjusting effect; the preparation method of the high-efficiency nickel-removing cleaning powder after hole sealing of the aluminum material anode is easy to realize, has high production efficiency, and can quickly produce the nickel-removing cleaning powder with strong chelating capacity for nickel ions, weak corrosivity and good durability.
The present invention will be further described with reference to the following examples.
Detailed Description
Example 1: the embodiment provides an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 40% of citric acid, 30% of malic acid, 5% of tartaric acid, 20% of sodium gluconate and 5% of sodium citrate.
Adding citric acid and malic acid into a mechanical stirrer, stirring for 30 minutes, then adding tartaric acid, stirring for 30 minutes, then adding sodium gluconate, stirring for 30 minutes, finally adding sodium citrate, stirring for 30 minutes, opening a valve of the stirrer, bagging to obtain the nickel-removing cleaning powder, and applying the nickel-removing cleaning powder to nickel-removing cleaning after anode sealing, thereby having good effect.
Example 2: the embodiment provides an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 45% of citric acid, 32% of malic acid, 3% of tartaric acid, 14% of sodium gluconate and 6% of sodium citrate.
Adding citric acid and malic acid into a mechanical stirrer, stirring for 30 minutes, then adding tartaric acid, stirring for 30 minutes, then adding sodium gluconate, stirring for 30 minutes, finally adding sodium citrate, stirring for 30 minutes, opening a valve of the stirrer, bagging to obtain the nickel-removing cleaning powder, and applying the nickel-removing cleaning powder to nickel-removing cleaning after anode sealing, thereby having good effect.
Example 3: the embodiment provides an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 50% of citric acid, 22% of malic acid, 5% of tartaric acid, 15% of sodium gluconate and 8% of sodium citrate.
Adding citric acid and malic acid into a mechanical stirrer, stirring for 20 minutes, then adding tartaric acid, stirring for 10 minutes, then adding sodium gluconate, stirring for 20 minutes, finally adding sodium citrate, stirring for 10 minutes, opening a valve of the stirrer, bagging to obtain the nickel-removing cleaning powder, and applying the nickel-removing cleaning powder to nickel-removing cleaning after anode sealing, so that the nickel-removing cleaning powder has a good effect.
Example 4: the embodiment provides an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 35% of citric acid, 22% of malic acid, 8% of tartaric acid, 25% of sodium gluconate and 10% of sodium citrate.
Adding citric acid and malic acid into a mechanical stirrer, stirring for 20 minutes, then adding tartaric acid, stirring for 10 minutes, then adding sodium gluconate, stirring for 20 minutes, finally adding sodium citrate, stirring for 10 minutes, opening a valve of the stirrer, bagging to obtain the nickel-removing cleaning powder, and applying the nickel-removing cleaning powder to nickel-removing cleaning after anode sealing, thereby having good effect.
Example 5: the embodiment provides an efficient nickel-removing cleaning powder after hole sealing of an aluminum material anode and a preparation method thereof, wherein the cleaning powder comprises the following raw materials in percentage by mass: 34% of citric acid, 40% of malic acid, 5% of tartaric acid, 15% of sodium gluconate and 6% of sodium citrate.
Adding citric acid and malic acid into a mechanical stirrer, stirring for 40 minutes, then adding tartaric acid, stirring for 40 minutes, then adding sodium gluconate, stirring for 40 minutes, finally adding sodium citrate, stirring for 60 minutes, opening a valve of the stirrer, bagging to obtain the nickel-removing cleaning powder, and applying the nickel-removing cleaning powder to nickel-removing cleaning after anode sealing, thereby having good effect.
Comparative example 1: the nickel-removing cleaning powder comprises the following components in percentage by weight: 40% of sulfamic acid; 30% of malic acid; 5% of tartaric acid; 20% of potassium sodium tartrate; 5% of sodium benzoate; the ingredients are added according to the weight percentage and stirred for preparation, firstly sulfamic acid and malic acid are added into a stirrer for stirring for 30 minutes, then tartaric acid is added for stirring for 30 minutes, then potassium sodium tartrate is added for stirring for 30 minutes, finally sodium benzoate is added for stirring for 30 minutes, and the nickel-removing cleaning powder is obtained by opening a valve of the stirrer and bagging.
Comparative example 2: the nickel-removing cleaning powder comprises the following components in percentage by weight: 33% of sulfamic acid; malic acid 28%; 6% of tartaric acid; 22% of potassium sodium tartrate; 11% of sodium benzoate; the ingredients are added according to the weight percentage and stirred for preparation, firstly sulfamic acid and malic acid are added into a stirrer for stirring for 30 minutes, then tartaric acid is added for stirring for 30 minutes, then potassium sodium tartrate is added for stirring for 30 minutes, finally sodium benzoate is added for stirring for 30 minutes, and the nickel-removing cleaning powder is obtained by opening a valve of the stirrer and bagging.
Examples 1 to 5 are only preferred embodiments of the present invention, and the present invention is not limited to all embodiments, and any technical solution using one of the above examples or equivalent changes made according to the above examples is within the scope of the present invention. In the above examples 1 to 5, the content of citric acid is preferably not less than 99.5%, and the cleaning effect is good; the content of the malic acid is preferably more than or equal to 99.3%, and the malic acid has an auxiliary cleaning effect; the content of the tartaric acid is preferably more than or equal to 98.5%, and the chelating effect is improved; the content of the sodium citrate is preferably more than or equal to 99.0 percent and is used for adjusting the pH value, the content of the sodium gluconate is preferably 98.5 percent, and the effect of assisting in chelating metal ions is improved.
Next, grooving was performed using the nickel-removing cleaning powder prepared in example 1-2 and the nickel-removing cleaning powders prepared in comparative examples 1-2. The nickel removing liquid is prepared by mixing 0.8 percent of nickel removing cleaning powder and 98.2 percent of water. The same mobile phone rear cover after hole sealing by anodic oxidation to remove nickel was placed in the nickel removal solution prepared in the above examples 1-2 and comparative examples 1-2 at 45 ℃ for immersion cleaning for 3 minutes, and the nickel removal degree, corrosion and durability of the nickel removal cleaning powder prepared in examples 1-2 and comparative examples 1-2 were compared and tested, and the test results are shown in table 1.
TABLE 1
| Sample (I) | Degree of removal of nickel | Corrosiveness of | Durability |
| Example 1 | Is completely clean | Is not corroded | 24h |
| Example 2 | Slight residue was found | Is not corroded | 24h |
| Comparative example 1 | Severe residue of | Etching of | / |
| Comparative example 2 | Severe residue in the skin | Etching of | / |
Through the comparison, it can be known that the nickel removing cleaning powder prepared by the high-efficiency nickel removing cleaning powder after hole sealing of the aluminum material anode and the preparation method thereof in the embodiment 1-2 has a good nickel removing effect, does not generate corrosion phenomenon, and effectively reduces the harm of heavy metal ion nickel to human bodies and the pollution to the environment.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. In addition, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation, as other cleaning powders and methods which employ the same or similar components are contemplated as within the scope of the invention.
Claims (2)
1. The high-efficiency nickel-removing cleaning powder after hole sealing of the aluminum anode is characterized by comprising the following raw materials in percentage by mass: 34-50% of citric acid, 22-40% of malic acid, 5-8% of tartaric acid, 14-25% of sodium gluconate and 6-10% of sodium citrate:
the content of citric acid is more than or equal to 99.5%, the content of malic acid is more than or equal to 99.3%, the content of tartaric acid is more than or equal to 98.5%, the content of sodium gluconate is 98.5%, and the content of sodium citrate is more than or equal to 99.0%.
2. A preparation method of high-efficiency nickel-removing cleaning powder after hole sealing of an aluminum material anode is characterized by comprising the following steps:
(1) preparing raw materials, wherein the raw materials comprise the following components in percentage by mass: 34-50% of citric acid, 22-40% of malic acid, 5-8% of tartaric acid, 14-25% of sodium gluconate and 6-10% of sodium citrate;
(2) mixing citric acid, malic acid, tartaric acid, sodium gluconate and sodium citrate, and uniformly stirring to obtain the high-efficiency nickel-removing cleaning powder after sealing the hole on the aluminum anode;
the step (2) specifically comprises the following steps: sequentially adding citric acid, malic acid, tartaric acid, sodium gluconate and sodium citrate into a mechanical stirrer, and stirring for 1-3 hours;
the content of citric acid is more than or equal to 99.5%, the content of malic acid is more than or equal to 99.3%, the content of tartaric acid is more than or equal to 98.5%, and the content of sodium citrate is more than or equal to 99.0%;
the content of the sodium gluconate is 98.5%.
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