CN202201979U - Acidity etching liquid recycling and copper recovering device - Google Patents
Acidity etching liquid recycling and copper recovering device Download PDFInfo
- Publication number
- CN202201979U CN202201979U CN201120321551XU CN201120321551U CN202201979U CN 202201979 U CN202201979 U CN 202201979U CN 201120321551X U CN201120321551X U CN 201120321551XU CN 201120321551 U CN201120321551 U CN 201120321551U CN 202201979 U CN202201979 U CN 202201979U
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- etching
- waste liquor
- pipeline
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- copper
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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
Abstract
The utility model discloses an acidity etching liquid recycling and copper recovering device, which comprises an electrolytic cell. An out-phase or homogeneous-phase cationic membrane for dividing the electrolytic cell into an anode area and a cathode area is arranged in the middle of the electrolytic cell, a positive electrode is arranged in the anode area, and a negative electrode is arranged in the cathode area. A waste etching liquid inlet and a regenerated liquid outlet are arranged in the anode area, the waste etching liquid inlet is connected with a waste etching liquid outlet of an etching machine through pipelines, and the regenerated liquid outlet is connected with a regenerated liquid mixing tank through pipelines. The cathode area and a copper powder separator form a circulation structure through pipelines so as to separate copper powder. The cathode area is provided with a waste etching liquid inlet and a regenerated liquid outlet, the waste etching liquid inlet is connected with the waste etching liquid outlet of the etching machine through pipelines, and the regenerated liquid outlet is connected with the regenerated liquid mixing tank through pipelines. An outlet of the regenerated liquid mixing tank is connected with an etching liquid inlet of the etching machine. The environment protection benefit and economical benefit of the regeneration process of the acidity etching liquid recycling and copper recovering device can be maximized.
Description
Technical field
The utility model belongs to the processing technology field of spent etching solution, specifically is meant a kind of acidic etching liquid cyclic regeneration and copper retrieving arrangement.
Background technology
In Industrial processes (like PCB industry etc.), acid etching is a kind of common etching mode.In etching process, when copper concentration in the acidic etching liquid or cuprous ion concentration were increased to a certain value, etching solution just can not stablize, etching Copper Foil apace, became etching waste liquor this moment.Acidic etching waste liquid is to contain a large amount of, multiple strong acid solution after contaminated by heavy metals, and this solution belongs to the Hazardous wastes of strong acid, high density heavy metal contamination, and acidic etching waste liquid is carried out the method that manipulation of regeneration is a kind of economy.
The manipulation of regeneration of acidic etching waste liquid comprises chemical regeneration method and electrochemical regeneration method.The chemical regeneration method, promptly sub-liquid method of reproduction, like the ydrogen peroxide 50 method of reproduction, VAL-DROP method of reproduction or atmospheric oxidation method of reproduction.Ydrogen peroxide 50 method of reproduction regeneration rate is fast, and the etching solution of discharge is less, but the less stable of ydrogen peroxide 50 is operated bad meeting and set off an explosion.VAL-DROP method of reproduction stability is high, but the etching waste liquor of discharging is more, and this saliniferous etching waste liquor is difficult to recycle.Though the atmospheric oxidation method of reproduction is feasible, oxidation rate is slow, efficient is low and device geometry is big especially.If adopt extraction-electrodeposition method; This method has been destroyed the composition of acidic etching liquid; The usefulness of etching solution significantly reduces, and the acid waste liquid after the collection still also will add a large amount of sodium chlorate solutions to improve redox potential in addition, and this method has increased the volume of etching solution greatly; Usually Duo 50% than the volume of chemical regeneration method, promptly still externally discharge waste liquid.In sum, existing regeneration treating method all externally discharges waste liquid, has therefore increased the risk of storage, transportation and recycling.
The utility model content
The utility model technical issues that need to address are to provide a kind of not to need to add such as strong oxidizer material (like VAL-DROP, ydrogen peroxide 50), organic substance (mixture of extraction agent and kerosene) again, and does not externally discharge the acidic etching liquid cyclic regeneration and the copper retrieving arrangement of waste liquid.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: acidic etching liquid cyclic regeneration and copper retrieving arrangement; Comprise electrolyzer, be provided with out-phase or the homogeneous phase ion anode membrane that electrolyzer is divided into positive column and cathodic area in the middle of the electrolyzer, be provided with positive electrode in the positive column; Be provided with negative potential in the cathodic area; Described positive column is provided with etching waste liquor inlet and regenerated liquid outlet, and the etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine, and the regenerated liquid outlet is connected to the regenerated liquid tempering tank through pipeline; Described cathodic area forms circulation to separate copper powder through pipeline and copper powder separating machine; The cathodic area is provided with etching waste liquor inlet and regenerated liquid outlet; The etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine, and the regenerated liquid outlet is connected with the regenerated liquid tempering tank through pipeline; The outlet of described regenerated liquid tempering tank is joined through the etching solution inlet of pipeline and etching machine.
Be provided with temperature control equipment in the etching waste liquor inlet duct in described positive column and cathodic area.
Described temperature control equipment is made up of electric heating tube and chilled water pipe.
Be provided with the circulation pumping of pumping liquid in the described pipeline.
Described positive electrode is to be made up of titanium plate and the noble metal oxide layer that is plated on the titanium plate.
Described negative potential is by constituting through the end of surface activation process resistance corrosion resistant metal plate.
Described temperature control equipment is controlled at the temperature of etching waste liquor between 40-52 ℃.
Owing to adopted above-mentioned structure, the utility model adopts out-phase or homogeneous phase ionic membrane stripping technique and special physics and the chemical process effect recyclings of realization strong acid etching waste liquor down such as electrochemical techniques.Low price heavy metal ion in the positive column is oxidized to the metals ion of high price and recovers the oxidation susceptibility of solution under the effect of positive electrode; Make the strong acid etching waste liquor obtain regeneration, the new strong acid solution of the solution instead after the regeneration directly send with pumping and returns production line and recycle; Simultaneously; Metals ion in the positive column enters into the cathodic area through the different-phase ion film; Being pumped to the dilute solution that contains heavy metal ion in the cathodic area of electrode also constantly circulates; Metals ion is reduced into the powdery high pure metal under the effect of electrode, separates the back and the recovery heavy metal resources through the copper powder separating machine.
The regenerative process of the utility model does not need to add such as strong oxidizer material (like VAL-DROP, ydrogen peroxide 50), organic substance (mixture of extraction agent and kerosene) etc. again; The equal maximizing of its environmental benefit and economic benefit, the utility model particularly suitable and the operation of etching production line interlock.
Description of drawings
Fig. 1 is the structural representation of acidic etching liquid cyclic regeneration and copper retrieving arrangement.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1; Described acidic etching liquid cyclic regeneration of the utility model and copper retrieving arrangement comprise electrolyzer 1, are provided with out-phase or the homogeneous phase ion anode membrane 2 that electrolyzer 1 is divided into positive column 11 and cathodic area 12 in the middle of the electrolyzer 1; Out-phase or homogeneous phase ion anode membrane are reinforced out-phase or homogeneous phase ion anode membrane; Out-phase or homogeneous phase ion anode membrane can supply positively charged ion to pass through, and out-phase or homogeneous phase ion anode membrane are separated positive column and cathodic area, and purpose is that the ionic concn that guarantees two districts keeps relative stability.Be provided with positive electrode 3 in the positive column 11; Be provided with negative potential 4 in the cathodic area 12; Described positive column 11 is provided with etching waste liquor inlet and regenerated liquid outlet, and the etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine 9, and the regenerated liquid outlet is connected to regenerated liquid tempering tank 5 through pipeline; Described cathodic area 12 forms circulation to separate copper powder through pipeline with copper powder separating machine 6; Cathodic area 12 is provided with etching waste liquor inlet and regenerated liquid outlet; The etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine 9, and the regenerated liquid outlet is connected with regenerated liquid tempering tank 5 through pipeline; The outlet of described regenerated liquid tempering tank 5 is joined through the etching solution inlet of pipeline and etching machine 9.
The utility model provides and utilizes one group of special electrolyzer and be separated out positive column, cathodic area with out-phase or homogeneous phase ion anode membrane, and useless strong acid ionic liquid gets into the positive column with pumping from production line waste liquid tank (through humidity control system) to be mixed with the spent etching solution that circulates; Low price metallic cation (Cu in the electrolytic process in the electrolyzer
+) obtain electronics and be oxidized to high-valence cationic (Cu
2+) and recover its oxidation susceptibility, thus make anolyte recover oxidation susceptibility and obtain regeneration, and concrete reaction formula is following:
Cu
+ + e = Cu
2+。
Regenerated liquid through the positive column is communicated with the recycle that can realize regenerated liquid with pumping with production line, practiced thrift a large amount of chemical resources and expense.
The cathodic area is made up of the ionic acidic solution that comprises more etching metal.Cathodic area solution metal ion (Cu
2+, Cu
+) carry out along with electrolytic, metals ion can lose electronics formation metal (Cu) powder and fall at the bottom of the pond, and concrete reaction formula is following: Cu
2+-2e=Cu
0After forming metal (Cu) powder, can make the concentration of metal ions in cathodic area constantly to descend, the present technique employing adds the spent etching solution that contains a large amount of metals ions in right amount and keeps ionic concn.
Metal-powder separated in continuous working cycle through catholyte and to reach the purpose that reclaims metal, precious metal can regenerated using and is obtained favorable economic benefit.
Be provided with temperature control equipment 8 in the etching waste liquor inlet duct in described positive column 11 and cathodic area 12.Described temperature control equipment 8 is made up of electric heating tube and chilled water pipe.Temperature control equipment 8 is regulated strong acid solution through freezing water and titanium heating tube and is reached certain temperature.Described temperature control equipment is controlled at the temperature of etching waste liquor between 40-52 ℃.The solution that gets into positive column and cathodic area is all carried out temperature control, can guarantee that electrolytic process has higher electricity to imitate.
Be provided with the circulation pumping 7 of pumping liquid in the described pipeline, the circulation pumping is connected with corresponding pipeline, makes spent solution regeneration and etching production line form circulation loop.
Described positive electrode 3 is to be made up of titanium plate and the noble metal oxide layer that is plated on the titanium plate, and described negative potential 4 is by constituting through the end of surface activation process resistance corrosion resistant metal plate, having higher electricity to imitate at electrolytic process like this.
In practical application, control the concentration of metal ions of the solution in positive column 11 and the cathodic area 12 at the utility model well, and the formation that helps powder metal when adopting bigger current density to carry out electrolysis, also help metal-powder and separate with catholyte.
The useless strong acid ionic liquid of the accessible dirt of the utility model mainly comprises waste liquid after the acid metal etching, the regenerated using of for example metallic surface cleaning, the engraving of metallic surface, the copper acidic etching waste liquid of PC board manufacturing etc.
In a word; The above-mentioned preferred implementation though the utility model has been given an example; But should explain; Though those skilled in the art can carry out various variations and remodeling,, otherwise all should be included in the protection domain of the utility model only if such variation and remodeling have departed from the scope of the utility model.
Claims (7)
1. acidic etching liquid cyclic regeneration and copper retrieving arrangement; It is characterized in that: comprise electrolyzer (1); Be provided with out-phase or the homogeneous phase ion anode membrane (2) that electrolyzer (1) is divided into positive column (11) and cathodic area (12) in the middle of the electrolyzer (1); Be provided with positive electrode (3) in the positive column (11), be provided with negative potential (4) in cathodic area (12), described positive column (11) are provided with etching waste liquor inlet and regenerated liquid outlet; The etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine, and the regenerated liquid outlet is connected to regenerated liquid tempering tank (5) through pipeline; Described cathodic area (12) forms circulation to separate copper powder through pipeline and copper powder separating machine (6); Cathodic area (12) is provided with etching waste liquor inlet and regenerated liquid outlet; The etching waste liquor inlet joins through the etching waste liquor outlet of pipeline and etching machine, and the regenerated liquid outlet is connected with regenerated liquid tempering tank (5) through pipeline; The outlet of described regenerated liquid tempering tank (5) is joined through the etching solution inlet of pipeline and etching machine.
2. according to described acidic etching liquid cyclic regeneration of claim 1 and copper retrieving arrangement, it is characterized in that: be provided with temperature control equipment (8) in the etching waste liquor inlet duct of described positive column (11) and cathodic area (12).
3. according to described acidic etching liquid cyclic regeneration of claim 2 and copper retrieving arrangement, it is characterized in that: described temperature control equipment (8) is made up of electric heating tube and chilled water pipe.
4. according to claim 1 or 2 or 3 described acidic etching liquid cyclic regeneration and copper retrieving arrangements, it is characterized in that: be provided with the circulation pumping (7) of pumping liquid in the described pipeline.
5. according to claim 1 or 2 or 3 described acidic etching liquid cyclic regeneration and copper retrieving arrangements, it is characterized in that: described positive electrode (3) is to be made up of titanium plate and the noble metal oxide layer that is plated on the titanium plate.
6. according to claim 1 or 2 or 3 described acidic etching liquid cyclic regeneration and copper retrieving arrangements, it is characterized in that: described negative potential (4) is by constituting through the end of surface activation process resistance corrosion resistant metal plate.
7. according to claim 2 or 3 described acidic etching liquid cyclic regeneration and copper retrieving arrangements, it is characterized in that: described temperature control equipment is controlled at the temperature of etching waste liquor between 40-52 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120321551XU CN202201979U (en) | 2011-08-30 | 2011-08-30 | Acidity etching liquid recycling and copper recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120321551XU CN202201979U (en) | 2011-08-30 | 2011-08-30 | Acidity etching liquid recycling and copper recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202201979U true CN202201979U (en) | 2012-04-25 |
Family
ID=45966111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120321551XU Expired - Fee Related CN202201979U (en) | 2011-08-30 | 2011-08-30 | Acidity etching liquid recycling and copper recovering device |
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| Country | Link |
|---|---|
| CN (1) | CN202201979U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677061A (en) * | 2012-05-04 | 2012-09-19 | 江门市蓬江区大盈机电设备有限公司 | Method for on-line recycling acid etching solution and extracting and producing copper plate |
| CN103628073A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Mother liquid collecting tank for acid etching liquid circulating equipment |
| CN103628074A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Copper powder collection system for acid etching liquid cyclic regeneration system |
| CN103757635A (en) * | 2013-12-13 | 2014-04-30 | 陶克（苏州）机械设备有限公司 | Electrolytic bath, acid etching liquid regenerating equipment and method using electrolytic bath |
| CN106676527A (en) * | 2015-11-06 | 2017-05-17 | 陶克（苏州）机械设备有限公司 | Sodium chlorate type acid etching liquid off-line regeneration system |
| CN107829111A (en) * | 2017-10-17 | 2018-03-23 | 天津大学 | A kind of acid copper chloride etching liquid in-situ electrolysis regeneration and copper recovery method |
| CN108893742A (en) * | 2018-07-17 | 2018-11-27 | 深圳市祺鑫天正环保科技有限公司 | Acidic etching waste liquid processing and reclaiming system |
-
2011
- 2011-08-30 CN CN201120321551XU patent/CN202201979U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677061A (en) * | 2012-05-04 | 2012-09-19 | 江门市蓬江区大盈机电设备有限公司 | Method for on-line recycling acid etching solution and extracting and producing copper plate |
| CN103628073A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Mother liquid collecting tank for acid etching liquid circulating equipment |
| CN103628074A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Copper powder collection system for acid etching liquid cyclic regeneration system |
| CN103757635A (en) * | 2013-12-13 | 2014-04-30 | 陶克（苏州）机械设备有限公司 | Electrolytic bath, acid etching liquid regenerating equipment and method using electrolytic bath |
| CN103757635B (en) * | 2013-12-13 | 2016-11-23 | 陶克（苏州）机械设备有限公司 | Electrolysis bath and use regenerated acidic etching solution equipment and the renovation process of this electrolysis bath |
| CN106676527A (en) * | 2015-11-06 | 2017-05-17 | 陶克（苏州）机械设备有限公司 | Sodium chlorate type acid etching liquid off-line regeneration system |
| CN106676527B (en) * | 2015-11-06 | 2019-03-08 | 库特勒环保科技（苏州）有限公司 | A kind of chloric acid sodium form acidic etching liquid regenerated offline system |
| CN107829111A (en) * | 2017-10-17 | 2018-03-23 | 天津大学 | A kind of acid copper chloride etching liquid in-situ electrolysis regeneration and copper recovery method |
| CN108893742A (en) * | 2018-07-17 | 2018-11-27 | 深圳市祺鑫天正环保科技有限公司 | Acidic etching waste liquid processing and reclaiming system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU JICHI ENVIRONMENTAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGZHOU JICHI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 510663, Guangzhou, Guangdong Province, Luogang District, No. five South Road, No. 11, C building, Room 301 North Patentee after: Guangzhou Jichi Environmental Technology Co., Ltd. Address before: Yuexiu District City Ring Road 510075 Guangdong city of Guangzhou province No. 475 three East world six floor 626-629 Patentee before: Guangzhou Jiechi Environmental Protection Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |