CN102140639B - Deposited metal stripping agent and preparation method thereof - Google Patents
Deposited metal stripping agent and preparation method thereof Download PDFInfo
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- CN102140639B CN102140639B CN201110097773.2A CN201110097773A CN102140639B CN 102140639 B CN102140639 B CN 102140639B CN 201110097773 A CN201110097773 A CN 201110097773A CN 102140639 B CN102140639 B CN 102140639B
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- deposited metal
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Abstract
The invention discloses a deposited metal stripping agent for stripping metals deposited on the inner surface of a chemical plating tank and a preparation method of the deposited metal stripping agent. The deposited metal stripping agent comprises the following components: 250-300ml/L sulfuric acid (98%), 80-100ml/L hydrogen peroxide, 50-60ml/L alcohol, 2-3g/L urea, 25-30g/L tartaric acid, 20-25ml/L propylene glycol, 0.01-0.02g/L sodium lauryl sulfate and the balance of water. The preparation method comprises: adding running water the volume of which is 1/2 of that of a prepared liquid into a container at normal temperature; slowly adding the sulfuric acid (98%) while stirring continuously; then sequentially adding hydrogen peroxide, alcohol, urea, tartaric acid, propylene glycol and sodium lauryl sulfate; continuously stirring to dissolve the added substances; adding the balance of running water; and stirring until the mixed solution is homogeneous and transparent. As nitric acid is not contained, the deposited metal stripping agent disclosed by the invention does not generate harmful gas, is environment-friendly and pollution-free; and meanwhile, the cost comparison of each component is relatively low, thus the cost is low.
Description
Technical field
The present invention relates to a kind of metal removing agent, more definitely relate to a kind of deposited metal stripping agent that deposits the metal getting off for stripping electroless plating tank internal surface, also relate to the preparation method of this deposited metal stripping agent.
Background technology
In chemical nickel phosphorus plating or nickel tungsten phosphorus technique, coating bath surface usually produces metal refining, and it not only increases bath element and additionally consumes, and reduces another part quality of coating, even causes plating solution Auto-decomposition, therefore needs frequent stripping.
The stripping of coating bath surface deposition metal in the past, often adopts concentrated nitric acid, exists serious obnoxious flavour to pollute.In order to overcome this problem, the patent that publication number is CN1948552A proposes, and adds 2-4g/L hydrogen peroxide in chemical plating fluid, and submergence metal refining surface, by the temperature heating of plating solution electroless plating, makes plating solution and metal refining effect, reaches removing object.This method can obviously change bath element, reduces another part quality of coating, makes plating solution be difficult to continue on for the object of electroless plating, thereby is also uneconomic.
Summary of the invention
The object of the invention is the deficiency in order to overcome the said products, deposited metal stripping agent and the preparation method of a kind of economy, environmental protection is provided.
Deposited metal stripping agent of the present invention, is comprised of following each material:
Advantage of the present invention:
1, the present invention adopts sulfuric acid and hydrogen peroxide as oxygenant, makes the metal of deposition become metal ion, has avoided use concentrated nitric acid and produces obnoxious flavour, environmental protection.
2, the finished product market value of 98% sulfuric acid of the present invention, 30% hydrogen peroxide, alcohol, urea, tartrate, propylene glycol and sodium lauryl sulphate is lower, thereby the cost compare of this product is low.
Embodiment
Embodiment mono-
Deposited metal stripping agent of the present invention is comprised of following component:
The preparation method of above-mentioned deposited metal stripping agent is: under normal temperature, in container, add the tap water of institute's part long-pending 1/2, under constantly stirring, slowly add 98% sulfuric acid, then add successively 30% hydrogen peroxide, alcohol, urea, tartrate, propylene glycol and sodium lauryl sulphate, constantly stir and make its dissolving, the tap water that adds She to measure, is stirred to solution and presents homogeneous phase transparent.
The using method of above-mentioned deposited metal stripping agent is: stripping liquid is heated to 40-50 ℃, pours in coating bath, the surface of submergence metal refining, constantly stir, when after whole metal refining strippings, pour out stripping liquid, clean coating bath, coating bath can be again for electroless plating.
Application example 1 of the present invention:
Use 1L beaker, contain the biochemical plating solution of acid of sulfur acid nickel, inferior sodium phosphate, sodium acetate, lactic acid, be heated to 90 ℃, put into through pre-treatment, surface-area is about 3d m
2lY12 aluminum pipe, carry out electroless plating, until solution decompose.Then chemical plating fluid is poured out, at the bottom of walls of beaker, all had the black deposit cementing.
Add the stripping liquid of 1L, wherein, containing 98% sulfuric acid (technical grade) 250ml, 30% hydrogen peroxide (technical grade) 80ml, alcohol (technical grade) 50ml, urea 2g/L, tartrate 30g/L, glycerol (technical grade) 20ml, sodium lauryl sulphate (chemical grade) 0.01g, She is tap water.Be heated to 50 ℃, constantly stir, walls of beaker, end black deposit constantly come off, dissolve, and about 15min all strips.Stripping liquid is by the colourless light green that becomes.
Application example 2 of the present invention:
Use 1L beaker, contain the alkaline chemical nickel-plating tungsten phosphorus solution that closes single nickel salt, inferior sodium phosphate, sodium wolframate, ammonium sulfate, Trisodium Citrate, be heated to 90 ℃, put into through pre-treatment, the about 3d m of surface-area
2brazed copper tube carry out electroless plating, until solution decompose.Then chemical plating fluid is poured out, at the bottom of walls of beaker, all had the black deposit cementing.
Add the stripping liquid of 1L, wherein, containing 98% sulfuric acid (technical grade) 300ml, 30% hydrogen peroxide (technical grade) 100ml, alcohol (technical grade) 60ml, urea 3g/L, tartrate 25g/L, glycerol (technical grade) 25ml, sodium lauryl sulphate (chemical grade) 0.02g, remaining is tap water.Be heated to 40 ℃, constantly stir, walls of beaker, end black deposit constantly come off, dissolve, and about 20min all strips.Stripping liquid is by the colourless light green that becomes.
Claims (2)
1.-kind of deposited metal stripping agent, is characterized in that: the each component content of deposited metal stripping agent is:
2. the preparation method of deposited metal stripping agent described in-kind of claim 1, it is characterized in that: under normal temperature, in container, add the tap water of institute's part long-pending 1/2, under constantly stirring, slowly add 98% sulfuric acid, then add successively 30% hydrogen peroxide, alcohol, urea, tartrate, propylene glycol and sodium lauryl sulphate, constantly stir it is dissolved, add the tap water of surplus, be stirred to solution and present homogeneous phase transparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097773.2A CN102140639B (en) | 2011-04-19 | 2011-04-19 | Deposited metal stripping agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097773.2A CN102140639B (en) | 2011-04-19 | 2011-04-19 | Deposited metal stripping agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140639A CN102140639A (en) | 2011-08-03 |
| CN102140639B true CN102140639B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110097773.2A Active CN102140639B (en) | 2011-04-19 | 2011-04-19 | Deposited metal stripping agent and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220215B (en) * | 2015-11-04 | 2017-06-16 | 哈尔滨工业大学 | A kind of obstacles in quit of ultraprecise Al and Al-alloy electroless nickel-phosphorus alloy plating layer on surface |
| CN105862042A (en) * | 2016-06-08 | 2016-08-17 | 广东工业大学 | Nickel stripping solution and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071278A (en) * | 2006-05-12 | 2007-11-14 | 湖南省科学技术研究开发院 | Photo resist film removing agent |
| CN101638783A (en) * | 2009-08-04 | 2010-02-03 | 华侨大学 | Brass chemical polishing solution and preparation method thereof |
| CN101684557A (en) * | 2008-09-26 | 2010-03-31 | 韩国泰科诺赛美材料株式会社 | Copper, copper/molybdenum, or copper/molybdenum alloy electrode etching solution for use in liquid crystal display system |
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2011
- 2011-04-19 CN CN201110097773.2A patent/CN102140639B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071278A (en) * | 2006-05-12 | 2007-11-14 | 湖南省科学技术研究开发院 | Photo resist film removing agent |
| CN101684557A (en) * | 2008-09-26 | 2010-03-31 | 韩国泰科诺赛美材料株式会社 | Copper, copper/molybdenum, or copper/molybdenum alloy electrode etching solution for use in liquid crystal display system |
| CN101638783A (en) * | 2009-08-04 | 2010-02-03 | 华侨大学 | Brass chemical polishing solution and preparation method thereof |
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| CN102140639A (en) | 2011-08-03 |
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Owner name: LUO MUSIC INSTRUMENT CO., LTD. Free format text: FORMER OWNER: LUO SENHE Effective date: 20121101 |
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Inventor after: Li Bingsheng Inventor after: Luo Ruiyu Inventor after: Wu Liping Inventor before: Feng Yuefei Inventor before: Li Bingsheng Inventor before: Luo Ruiyu |
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Free format text: CORRECT: INVENTOR; FROM: FENG YUEFEI LI BINGSHENG LUO RUIYU TO: LI BINGSHENG LUO RUIYU WU LIPING |
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Effective date of registration: 20121101 Address after: 315300 Zhejiang city in Cixi province Xiao Lin Zhen Zhang new North Road No. 1928 Applicant after: Ningbo Luo Music Corporation Address before: 315300 Zhejiang city of Cixi province Sheng Shan Zhen Zhen Qian Cun Lian Feng Applicant before: Luo Senhe |
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