CN1422982A - Acid detinning and deleading agent - Google Patents
Acid detinning and deleading agent Download PDFInfo
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- CN1422982A CN1422982A CN 02149619 CN02149619A CN1422982A CN 1422982 A CN1422982 A CN 1422982A CN 02149619 CN02149619 CN 02149619 CN 02149619 A CN02149619 A CN 02149619A CN 1422982 A CN1422982 A CN 1422982A
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- acid
- detinning
- deleading agent
- agent
- deleading
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- Compositions Of Macromolecular Compounds (AREA)
- Manufacturing Of Printed Wiring (AREA)
- ing And Chemical Polishing (AREA)
Abstract
There is a kind of acid fade stannum lead agent, it is yellow liquid, the proportion is 1.5 nitric acid 19.16-37.96%, 36% nuriatic acid 4.37-12.17%, activating agent 1.70-5.05%, stabilizer 0.17-0.52%, water 50.30-72.02%. It has little corrosion to copper base and has no corrosion to epoxy. It is special chemistry product for printing circuit board, it can eliminate the stannum lead to 150-250 g/l.
Description
Technical field the present invention relates to non-mechanical approach and removes lip-deep metallic substance, relates in particular to a kind of acid detinning and deleading agent.
The existing printing system of background technology circuit card will protect the tin lead of image or the coating of tin to remove with being used to originally after visual etching is finished.Existing detinning and deleading agent is to be raw material with fluoroboric acid or potassium hydrogen fluoride and hydrogen peroxide, and it is big to react violent release of heat, serious to the copper matrix corrosion, also corrode epoxy resin surface, precipitation is many, easily fouling, the wash machine trouble, and be difficult to dispose waste liquid, environmental pollution caused.
Summary of the invention is to remedy the defective that prior art exists, and the present invention proposes a kind of acid detinning and deleading agent.The technical scheme that adopts is as follows:
This acid detinning and deleading agent is a light yellow liquid, it is characterized in that each component and degree are respectively:
The nitric acid 19.16～37.96% of proportion 1.5;
36% hydrochloric acid 4.37～12.17%;
Activator 1.70～5.05%;
Stablizer 0.17～0.52%;
Water 50.30～72.02%.
The further feature of this acid detinning and deleading agent is:
The substitute of nitric acid is phosphoric acid and methylsulphonic acid;
The substitute of hydrochloric acid is hydrofluoric acid and sulfuric acid;
Activator can be a hydrogen peroxide, also can be Potcrate, can also be Ammonium Persulfate 98.5;
Stablizer can be a hexamethylenetetramine, also can be thiocarbamide.
The preparation method of this acid detinning and deleading agent is, each component precentagewise content fed intake stir preparation, promptly prepares finished product.
The present invention's beneficial effect against existing technologies is, the component novelty, and the batching science, raw material is common, makes each is simple, and cost is lower.Slight to the copper matrix corrosion, do not corrode epoxy resin surface, erosion rear surface light is clean and tidy; protection is stable, and it is fast to move back the speed of tin lead, and is close with the speed of the detinning and deleading agent of fluorine-containing type; be particularly useful for moving back fast the plumbous tinuous production of tin, but it is little to react gentle release of heat, does not smolder; non-foaming; there is not or seldom has precipitation, no fouling, often wash machine; waste liquid is easily handled, and the environmental pollution degree is low.The present invention is a kind of efficient inhibition detinning and deleading agent, is the special-purpose chemical preparations of making printed circuit board (PCB), and the plumbous amount of erosion tin that the coating that was used to protect the tin lead of image or tin is originally removed is up to 150～250 grams per liters.
A kind of acid detinning and deleading agent of embodiment
This each component of acidity detinning and deleading agent and degree are respectively:
The nitric acid 29.7% of proportion 1.5;
36% hydrochloric acid 7.0%;
Ammonium Persulfate 98.5 3.0%;
Hexamethylenetetramine 0.3%;
Water 60.0%.
Above-mentioned each component precentagewise content fed intake stir preparation, promptly prepare finished product.
Claims (5)
1, a kind of acid detinning and deleading agent is characterized in that each component and degree are respectively:
The nitric acid 19.16～37.96% of proportion 1.5;
36% hydrochloric acid 4.37～12.17%:
Activator 1.70～5.05%:
Stablizer 0.17～0.52%:
Water 50.30～72.02%.
2, acid detinning and deleading agent as claimed in claim 1, the substitute that it is characterized in that nitric acid is phosphoric acid and methylsulphonic acid.
3, acid detinning and deleading agent as claimed in claim 1, the substitute that it is characterized in that hydrochloric acid is hydrofluoric acid and sulfuric acid.
4, acid detinning and deleading agent as claimed in claim 1 is characterized in that activator can be a hydrogen peroxide, also can be Potcrate, can also be Ammonium Persulfate 98.5.
5, acid detinning and deleading agent as claimed in claim 1 is characterized in that stablizer can be a hexamethylenetetramine, also can be thiocarbamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149619 CN1200141C (en) | 2002-12-10 | 2002-12-10 | Acid detinning and deleading agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149619 CN1200141C (en) | 2002-12-10 | 2002-12-10 | Acid detinning and deleading agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1422982A true CN1422982A (en) | 2003-06-11 |
| CN1200141C CN1200141C (en) | 2005-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02149619 Expired - Fee Related CN1200141C (en) | 2002-12-10 | 2002-12-10 | Acid detinning and deleading agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1200141C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061477A (en) * | 2010-12-31 | 2011-05-18 | 深圳市格林美高新技术股份有限公司 | Solder removing liquid, preparation method and application thereof |
| CN103866324A (en) * | 2013-05-20 | 2014-06-18 | 昆山市板明电子科技有限公司 | Selective tin etching solution |
| CN105239147A (en) * | 2015-10-01 | 2016-01-13 | 常州市奥普泰科光电有限公司 | Preparation method of environment-friendly spraying electrolysis stripping solution |
| CN105396865A (en) * | 2015-12-09 | 2016-03-16 | 上海大学 | Method for removing components of waste circuit board by virtue of ultrasonically-assisted acidic compound solvent |
| CN105723005A (en) * | 2013-07-08 | 2016-06-29 | 阿尔法金属公司 | Metal recovery |
| CN106455337A (en) * | 2016-11-30 | 2017-02-22 | 福建工程学院 | Method for removing tin-lead solder from waste circuit board |
| CN107059008A (en) * | 2017-01-11 | 2017-08-18 | 长江大学 | One kind is used to strip scolding tin material tin stripping liquid and preparation method thereof on discarded PCB |
| CN107267989A (en) * | 2016-04-08 | 2017-10-20 | 贵州黎阳航空动力有限公司 | A kind of chemical solution for being used to remove high-temperature alloy surface aluminum silicon infiltration layer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407914B (en) * | 2007-10-12 | 2010-08-25 | 广东省石油化工研究院 | Tin-lead stripper |
| JP5792284B2 (en) * | 2010-04-15 | 2015-10-07 | アドバンスド テクノロジー マテリアルズ，インコーポレイテッド | How to recycle an aged printed circuit board |
-
2002
- 2002-12-10 CN CN 02149619 patent/CN1200141C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061477A (en) * | 2010-12-31 | 2011-05-18 | 深圳市格林美高新技术股份有限公司 | Solder removing liquid, preparation method and application thereof |
| CN103866324A (en) * | 2013-05-20 | 2014-06-18 | 昆山市板明电子科技有限公司 | Selective tin etching solution |
| CN103866324B (en) * | 2013-05-20 | 2015-09-16 | 昆山市板明电子科技有限公司 | Selectivity tin etching solution |
| CN105723005A (en) * | 2013-07-08 | 2016-06-29 | 阿尔法金属公司 | Metal recovery |
| CN105239147A (en) * | 2015-10-01 | 2016-01-13 | 常州市奥普泰科光电有限公司 | Preparation method of environment-friendly spraying electrolysis stripping solution |
| CN105396865A (en) * | 2015-12-09 | 2016-03-16 | 上海大学 | Method for removing components of waste circuit board by virtue of ultrasonically-assisted acidic compound solvent |
| CN107267989A (en) * | 2016-04-08 | 2017-10-20 | 贵州黎阳航空动力有限公司 | A kind of chemical solution for being used to remove high-temperature alloy surface aluminum silicon infiltration layer |
| CN106455337A (en) * | 2016-11-30 | 2017-02-22 | 福建工程学院 | Method for removing tin-lead solder from waste circuit board |
| CN107059008A (en) * | 2017-01-11 | 2017-08-18 | 长江大学 | One kind is used to strip scolding tin material tin stripping liquid and preparation method thereof on discarded PCB |
| CN107059008B (en) * | 2017-01-11 | 2020-04-28 | 长江大学 | Tin stripping liquid for removing soldering tin material on waste PCB and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1200141C (en) | 2005-05-04 |
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