CN202643846U - Etching waste liquid treatment system of printing plate - Google Patents
Etching waste liquid treatment system of printing plate Download PDFInfo
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- CN202643846U CN202643846U CN 201220256976 CN201220256976U CN202643846U CN 202643846 U CN202643846 U CN 202643846U CN 201220256976 CN201220256976 CN 201220256976 CN 201220256976 U CN201220256976 U CN 201220256976U CN 202643846 U CN202643846 U CN 202643846U
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Abstract
The utility model relates to an etching waste liquid treatment system of a printing plate. The etching waste liquid treatment system of the printing plate comprises a liquid storage tank, an evaporation device, a cooling tank, a precipitation separation device, a first electrolyzing buffer tank, an electrolyzing tank, an ion film electrolyzing tank, a filter basin and a second electrolyzing buffer tank. After the etching waste liquid treatment system is connected with an etching line, recovery of copper is achieved in a mode of electrolyzing after evaporation, and alkali is recovered in the electrolyzing process of the electrolyzing tank and the ion film electrolyzing tank.
Description
Technical field
The utility model relates to the printed circuit board (PCB) production field, particularly relates to a kind for the treatment of system that contains the printed circuit board etching waste liquid of cupric chloride.
Background technology
In the printed circuit board manufacture craft, printed-wiring board (PWB) enterprise is being perplexed in the reclaiming of acid copper chloride etching liquid all the time, every liter contains the copper of 100 grams to 180 grams of having an appointment in the non-renewable acid copper chloride etching liquid, only the copper content of this class spent etching solution of Guangdong Province's generation every month just has more than the thousands of tons of, if reclaim this metalloid copper and the use of spent etching solution cyclic regeneration must be had very great economic benefit and the value of environmental protection.
Traditional printed board etching waste liquor treatment process is single extraction copper only, and waste liquid directly discharges after carrying copper, other compositions in the etching solution is not reclaimed, and causes secondary pollution problems.
The utility model content
Based on this, be necessary to provide a kind of and can reclaim copper, but also the treatment system of recyclable other compositions of printed circuit board etching waste liquid.
A kind of printed circuit board etching waste liquid treatment system comprises: reservoir, evaporation unit, cooling tank, precipitation separation device, the first electrolysis dashpot, electrolyzer, ion-exchange membrane electrolyzer, filtering basin and the second electrolysis dashpot, wherein,
Described reservoir is used for memory print plate etching waste liquor, and the composition of described printed circuit board etching waste liquid comprises cupric chloride, hydrogenchloride and sodium-chlor;
Described evaporation unit links to each other with described reservoir, is used for the hydrogenchloride evaporation of described printed circuit board etching waste liquid is separated;
Described cooling tank links to each other with described evaporation unit, is used for receiving the hydrogen chloride gas that described evaporation unit produces, and forms hydrochloric acid after condensation absorbs;
Described precipitation separation device links to each other with described evaporation unit, and the partial oxidation copper in the printed circuit board etching waste liquid behind the removal hydrogenchloride is converted into the copper hydroxide precipitation at described precipitation separation device, and makes precipitation and solution separating;
Described the first electrolysis dashpot links to each other with described precipitation separation device, separates the copper hydroxide precipitation that obtains and enters described the first electrolysis dashpot, and be converted into cupric ammine complex at described the first electrolysis dashpot;
Described electrolyzer links to each other with described the first electrolysis dashpot, and described cupric ammine complex is copper simple substance and ammonia at described electrolytic tank electrolysis;
Described ion-exchange membrane electrolyzer comprises positive column, buffer zone and cathodic area, described positive column and described buffer zone are separated by anionic membrane, described buffer zone and described cathodic area are separated by cationic membrane, described buffer zone is used for receiving the solution from after the removal copper hydroxide precipitation of described precipitation separation device, described positive column is used for electrolysis and produces the chlorine that passes into described cooling tank, and described cathodic area is used for electrolysis and produces copper simple substance and sodium hydroxide solution;
Described filtering basin link to each other with described ion-exchange membrane electrolyzer, are used for filtering the described copper simple substance of collection;
Described the second electrolysis dashpot links to each other with described filtering basin, is used for collecting described sodium hydroxide solution.
Among embodiment, described electrolyzer links to each other with described the first electrolysis dashpot therein, and the ammonia that described electrolytic tank electrolysis produces enters described the first electrolysis dashpot, makes the copper hydroxide precipitation be converted into cupric ammine complex.
Therein among embodiment, described the first electrolysis dashpot links to each other with described ion-exchange membrane electrolyzer, inject respectively positive column and the buffer zone of described ion-exchange membrane electrolyzer in described the first electrolysis dashpot through the electrolytic solution behind the described electrolytic tank electrolysis, inject described the first electrolysis dashpot through the electrolytic solution after the ion-exchange membrane electrolyzer electrolysis.
Therein among embodiment, described the second electrolysis dashpot links to each other with described precipitation separation device, and with described sodium hydroxide solution injection precipitation separation device, the partial oxidation copper in the printed circuit board etching waste liquid behind the described removal hydrogenchloride is converted into the copper hydroxide precipitation.
Among embodiment, described the second electrolysis dashpot links to each other with described ion-exchange membrane electrolyzer therein, and the sodium hydroxide solution in described the second electrolysis dashpot is injected the cathodic area of described ion-exchange membrane electrolyzer.
A kind of printed circuit board etching waste liquid treatment system comprises:
Reservoir;
Evaporation unit with the reservoir fluid communication;
Cooling tank with evaporation unit fluid communication extraction vaporised gas;
With the evaporation unit fluid communication to extract after evaporation remaining liq and in the precipitation separation device that precipitin reaction wherein occurs;
The first electrolysis dashpot of collecting with precipitation that will produce in the precipitation separation device with the precipitation separation device fluid communication;
Electrolyzer with the first electrolysis dashpot circulation;
Extract in the ion-exchange membrane electrolyzer that electrolysis wherein occurs with the remaining liq of inciting somebody to action after precipitation with the precipitation separation device fluid communication; And
The second electrolysis dashpot with the ion-exchange membrane electrolyzer fluid communication.
Among embodiment, described the second electrolysis dashpot and precipitation separation device fluid communication are to supply with the required liquid of precipitin reaction to precipitation separation device therein.
Among embodiment, described ion-exchange membrane electrolyzer and the first electrolysis dashpot fluid communication further are provided with filtering basin to extract liquid in the first dashpot between ion-exchange membrane electrolyzer and the second electrolysis dashpot therein.
Therein among embodiment, described ion-exchange membrane electrolyzer comprises positive column, cathodic area and the buffer zone between positive column and cathodic area, separated by anionic membrane between positive column and the buffer zone, separated by cationic membrane between cathodic area and the buffer zone, described cooling tank and positive column fluid communication, described precipitation separation device and buffer zone fluid communication, the first electrolysis dashpot and positive column and buffer zone be fluid communication simultaneously.
Therein among embodiment, described ion-exchange membrane electrolyzer further comprises a temporary tank with the positive column fluid communication, temporary tank further with the first electrolysis dashpot fluid communication.
Therein among embodiment, described cooling tank simultaneously and the gas that produces to collect electrolysis of ion-exchange membrane electrolyzer fluid communication.
After said system and printing plate etching line interconnect, realize recovery of copper by the mode of evaporating first rear electrolysis, can in electrolytic process, reclaim alkali simultaneously.
Description of drawings
Fig. 1 is the Organization Chart for the treatment of system of the printed circuit board etching waste liquid of an embodiment;
Fig. 2 is the schema for the treatment of process of the printed circuit board etching waste liquid of an embodiment.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, and those skilled in the art can be in the situation that do similar improvement without prejudice to the utility model intension, so the utility model is not subjected to the restriction of following public implementation.
In order to solve only single extraction copper of traditional printed board etching waste liquor treatment process, and waste liquid directly discharges after carrying copper, other compositions in the etching solution are not reclaimed, cause secondary pollution problems, this programme adopts electrolysis, electrodialytic technique, the copper in the etching solution can not only be reclaimed, and the method that adopts electrolysis with ion-exchange film other compositions such as recyclable HCl, NaOH also, whole system does not produce secondary pollution, and etching solution has obtained resource circulation utilization.
In the following description, " liquid adapter " refer to the pipeline that a kind of liquid can therefrom flow; " gas adapter " refers to the pipeline that a kind of gas can therefrom flow.In the utility model, no matter the pipeline between two equipment is that transport gas or liquid all can be understood as fluid communication.Liquid or gas flow can be by drive unit pressurization or the mode such as decompression realize, for better explanation principle of the present utility model, the description of these drive units is omitted.
Fig. 1 has shown the configuration diagram for the treatment of system of the printed circuit board etching waste liquid of an embodiment.See also Fig. 1, the treatment system 100 of the printed circuit board etching waste liquid of an embodiment comprises: reservoir 10, evaporation unit 20, cooling tank 30, precipitation separation device 40, the first electrolysis dashpot 50, electrolyzer 60, ion-exchange membrane electrolyzer 70, filtering basin 80 and the second electrolysis dashpot 90.
Printed circuit board etching waste liquid flows into and is stored in 10 li of reservoirs from the etching line of producing printed circuit board (PCB).The composition of described printed circuit board etching waste liquid mainly comprises cupric chloride, hydrogenchloride and sodium-chlor.According to the difference of etching waste liquor, also may comprise other metal ions such as potassium, iron, nickel.
The top of cooling tank 30 is provided with two condensers (not indicating), and the temperature of taking over 21 hydrogen chloride gas that pass into from gas can be cooled to 5 ~ 10 ℃ condenser, and after being condensed into liquid, the water that hydrogen chloride gas is known from experience in the groove 30 that is cooled absorbs formation hydrochloric acid.
Reaction equation is: CuCl
2+ 2NaOH → 2Cu (OH)
2↓+NaCl
The first electrolysis dashpot 50 is by liquid adapter 41 and precipitation separation device 40 fluid communication.The copper hydroxide precipitation that precipitation separation device 40 separation obtain under the ammonia that externally adds or the effect of ammonium salt (for example ammonium sulfate), can be converted into cupric ammine complex after entering the first electrolysis dashpot 50 by liquid adapter 41.
Reaction equation is: Cu (OH)
2+ 4NH
3→ [Cu (NH
3)
4]
2++ 2OH
-
Electrolyzer 60 is taken over the 51 and first electrolysis dashpot 50 fluid communication by liquid.After the cupric ammine complex of the first electrolysis dashpot 50 interior formation entered electrolyzer 60, electrolysis occured.
Cathodic reaction: (Cu (NH
3)
4)
2++ 2e
-→ Cu+4NH
3
Produce thus copper simple substance and ammonia in the cathodic area.In the present embodiment, the copper simple substance of generation is attached on the cathode electrode with the form of copper coin, therefore can copper simple substance be taken out by the mode of changing electrode.
Anodic reaction: 2NH
3+ 2H
2O → 2 (NH
4)
++ 2OH
-
2OH
-→1/2O
2+H
2O+2e
-
In the present embodiment, electrolyzer 60 is also taken over the 61 and first electrolysis dashpot 50 fluid communication by gas.The ammonia that the cathodic area of electrolyzer 60 produces is taken over 61 by gas and is entered the first electrolysis dashpot 50, thereby the copper hydroxide precipitation is converted into cupric ammine complex, to realize the recycle of ammonia.Be appreciated that then gas adapter 61 also can be omitted if passing into the ammonia of the first electrolysis dashpot 50 introduces from the outside.
Ion-exchange membrane electrolyzer 70 comprises positive column 72, buffer zone 74 and cathodic area 76.Positive column 72 is separated by anionic membrane 721 with buffer zone 74, and buffer zone 74 is separated by cationic membrane 761 with cathodic area 76.Anionic membrane 721 can make negatively charged ion pass through to stop positively charged ion to pass through; Cationic membrane 761 can make positively charged ion pass through to stop negatively charged ion to pass through.Ion-exchange membrane electrolyzer 70 also comprises temporary tank 78.Temporary tank 78 is taken over (not indicating) with positive column 72 by liquid and is communicated, and is used for storage through the electrolytic solution after 72 electrolysis of positive column.
The buffer zone 74 of ion-exchange membrane electrolyzer 70 is by liquid adapter 42 and precipitation separation device 40 fluid communication.Comprise a large amount of NaCl and a small amount of CuCl in the precipitation separation device 40
2Solution can take over 42 by liquid and enter buffer zone 74, and polar region 72 and cathodic area 76 diffusions on the sunny side under the effect of cationic membrane 761 and anionic membrane 721.Concrete, chlorion will enter positive column 72, and cupric ion and sodium ion will enter cathodic area 76.
When electrolysis occured, following chemical reaction occured in cathodic area 76:
Cu
2++2e
-→Cu
Cu
++e
-→Cu
2H
2O+2e
-→H
2+2OH
-
OH
-+Na
+→NaOH
Produce thus copper simple substance and sodium hydroxide.In the present embodiment, because it is less to enter the cupric ion in cathodic area 76, the copper simple substance that therefore produces is present in the electrolytic solution with the form of copper powder.
Following chemical reaction occurs in positive column 72:
H
2O→1/2O
2+2H
++2e
-
2Cl
-→Cl
2+2e
-
2Cl
2+H
2O→2HClO+2HCl
The gas that positive column 72 produces (is mainly Cl
2Be connected with HCl and take over 34 by the gas that connects ion-exchange membrane electrolyzer 70 and cooling tank 30 and enter cooling tank 30, and under the effect of condenser, absorb and become hydrochloric acid.
Remaining electrolytic solution is taken over by liquid and is entered temporary tank 78 after 72 electrolysis of positive column.In the present embodiment, temporary tank 78 is taken over the 52 and first electrolysis dashpot 50 fluid communication by liquid, and the first electrolysis dashpot 50 is taken over positive column 72 and buffer zone 74 fluid communication of the 53 and first electrolysis dashpot 50 by liquid.Electrolytic solution after 60 electrolysis of the first electrolysis dashpot 50 interior process electrolyzers is taken over 53 by liquid and is injected respectively positive column 72 and buffer zone 74, and will take over 52 by liquid through the electrolytic solution after ion-exchange membrane electrolyzer 70 electrolysis and inject the first electrolysis dashpot 50, form thus circulation.Be appreciated that if do not need repeatedly to circulate, liquid adapter 52 and liquid are taken over 53 and also can be omitted.
The second electrolysis dashpot 90 is by liquid adapter 92 and filtering basin 80 fluid communication, and the collection sodium hydroxide solution.
In the present embodiment, the second electrolysis dashpot 90 is also by cathodic area 76 fluid communication of liquid adapter 94 with ion-exchange membrane electrolyzer 70, and continuous cathodic area 76 with sodium hydroxide solution ion membrane electrolyser 70, the moisture that consumes to replenish cathodic area 76.Be appreciated that liquid is taken over 94 and also can be omitted if replenish by other means the moisture that cathodic area 76 consumes.
In the present embodiment, the second electrolysis dashpot 90 is also by liquid adapter 96 and precipitation separation device 40 fluid communication, and sodium hydroxide solution injected precipitation separation device 40, be converted into the copper hydroxide precipitation with the partial oxidation copper that will remove in the printed circuit board etching waste liquid behind the hydrogenchloride.Be appreciated that then liquid adapter 96 also can be omitted if adopt the extraneous NaOH that introduces.
See also Fig. 2, the treatment process of the printed circuit board etching waste liquid of an embodiment comprises the steps:
Step S101, use reservoir memory print plate etching waste liquor, the composition of described printed circuit board etching waste liquid comprises cupric chloride and hydrogenchloride and sodium-chlor.
For example, printed circuit board etching waste liquid can be stored in the reservoir 10.
Step S102, the printed circuit board etching waste liquid in the described reservoir is injected evaporation unit, the hydrogenchloride evaporation in the printed circuit board etching waste liquid is separated, the hydrogen chloride gas that obtains is passed in the cooling tank, forms hydrochloric acid after condensation absorbs.
For example, printed circuit board etching waste liquid in the reservoir 10 can be injected into by liquid adapter 11 and carry out heat treated in the evaporation unit 20, thereby separate after making partial oxidation hydrogen in the printed circuit board etching waste liquid flash to gas, and take over 21 by gas and enter into cooling tank 30, condensation forms hydrochloric acid.
Step S103, the printed circuit board etching waste liquid that will remove behind the hydrogenchloride inject precipitation separation device, and partial oxidation copper is converted into the copper hydroxide precipitation, separate, and obtain removing the solution after the copper hydroxide precipitation.
For example, printed circuit board etching waste liquid behind the removal hydrogenchloride can be taken over 23 by liquid enters in the precipitation separation device 40, then toward precipitation separation device 40 interior input alkali lye (for example NaOH), so that the partial oxidation copper in the printed circuit board etching waste liquid can be converted into the copper hydroxide precipitation, then through separating the supernatant solution that obtains the copper hydroxide precipitation and be rich in NaCl.The copper hydroxide precipitation enters step S104, solution enters step S106.
Step S104, change described copper hydroxide precipitation over to first electrolysis dashpot, generate cupric ammine complex with ammoniacal liquor or ammonium salt reaction.
For example, the copper hydroxide precipitation that precipitation separation device 40 separation obtain can under the effect of ammonia or ammonium salt (for example ammonium sulfate), be converted into cupric ammine complex after entering the first electrolysis dashpot 50 by liquid adapter 41.
Step S105, described cupric ammine complex is injected electrolyzer, electrolysis produces copper simple substance and ammonia.
For example, electrolysis occurs after entering electrolyzer 60 by liquid adapter 51 in the cupric ammine complex of the first electrolysis dashpot 50 interior formation, produces respectively copper simple substance and ammonia in cathodic area and positive column.
In the present embodiment, the ammonia that the cathodic area of electrolyzer 60 produces is taken over 61 by gas and is entered the first electrolysis dashpot 50, thereby the copper hydroxide precipitation is converted into cupric ammine complex, to realize the recycle of ammonia.
Step S106, with the buffer zone of the solution ion membrane electrolyser after the described removal copper hydroxide precipitation, produce chlorine in the electrolysis of the positive column of described ion-exchange membrane electrolyzer, form hydrochloric acid after condensation absorbs; Make the cupric ion of the electrolytic solution that is positioned at described buffer zone and the cathodic area that sodium ion enters described ion-exchange membrane electrolyzer, produce copper simple substance and sodium hydroxide solution in the electrolysis of described cathodic area.
For example, comprise a large amount of NaCl and a small amount of CuCl in the precipitation separation device 40
2Solution can take over 42 by liquid and enter buffer zone 74, and polar region 72 and cathodic area 76 diffusions on the sunny side under the effect of cationic membrane 761 and anionic membrane 721, chlorion will enter positive column 72, and cupric ion and sodium ion will enter cathodic area 76.During electrolysis, cathodic area 76 produces copper simple substance and sodium hydroxide; Positive column 72 produces chlorine.The gas that positive column 72 produces is taken over 34 by the gas that connects ion-exchange membrane electrolyzer 70 and cooling tank 30 and is entered cooling tank 30, and absorption becomes hydrochloric acid under the effect of condenser.
Remaining electrolytic solution enters temporary tank 78 after 72 electrolysis of positive column.In the present embodiment, electrolytic solution after 60 electrolysis of the first electrolysis dashpot 50 interior process electrolyzers is taken over 53 by liquid and is injected respectively positive column 72 and buffer zone 74, and will take over 52 by liquid through the electrolytic solution after electrolyzer 60 electrolysis and inject the first electrolysis dashpot 50, form thus circulation.
Step S107, use filtering basin filter collects described copper simple substance.
For example, the 76 copper simple substance that generate are taken over 82 by liquid and are entered filtering basin 80 in the cathodic area, and are filtered collection at filtering basin 80.
Step S108, use the second electrolysis dashpot are collected described sodium hydroxide solution.
For example, 76 sodium hydroxide that generate are taken over 92 by liquid and are entered the second electrolysis dashpot 90 in the cathodic area, are about 25% sodium hydroxide solution thereby obtain concentration in 90 collections of the second electrolysis dashpot.
Preferably, the sodium hydroxide solution in the second electrolysis dashpot 90 is taken over 94 cathodic areas 76 that enter into ion-exchange membrane electrolyzer 70 by liquid and is circulated, to replenish the moisture that consumes.
Preferably, the second electrolysis dashpot 90 is also taken over 96 by liquid sodium hydroxide solution is injected precipitation separation device 40, is converted into copper hydroxide and precipitates will remove partial oxidation copper in the printed circuit board etching waste liquid behind the hydrogenchloride.
In the aforesaid method, step S103 ~ S105 is the main recycling channel of Cu, and step S106 ~ S108 is the main recycling channel of Na, and two groups of steps both can sequentially be carried out, and also can carry out simultaneously.
After said system and etching line interconnected, the circulation running can obtain HCl and NaOH when reclaiming metallic copper, and restored acid can be sent in real time etching line and again utilize, and the alkali of recovery is done corresponding storage.Whole process has been avoided secondary pollution without any waste water, waste gas and waste discharge, and whole etching work and recovery system realize automatization control fully, guarantees that whole system is stable, safely cycle operation.
When etching solution enters evaporation unit 20 and evaporates, can be with CuCl
2Separate with acidic substance HCl wherein, reduce the acidity of etching solution, promote the separating out of copper in the electrolyzer 60.On the other hand, can strengthen Cu to chlorine extraction in the ammonia in the electrolyzer 60 and the ion-exchange membrane electrolyzer 70
2+And Cu
+Redox reaction between chemical potential energy poor, promote the electrolysis of copper.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (11)
1. a printed circuit board etching waste liquid treatment system is characterized in that, comprising: reservoir, evaporation unit, cooling tank, precipitation separation device, the first electrolysis dashpot, electrolyzer, ion-exchange membrane electrolyzer, filtering basin and the second electrolysis dashpot, wherein,
Described reservoir is used for memory print plate etching waste liquor, and the composition of described printed circuit board etching waste liquid comprises cupric chloride, hydrogenchloride and sodium-chlor;
Described evaporation unit links to each other with described reservoir, is used for the hydrogenchloride evaporation of described printed circuit board etching waste liquid is separated;
Described cooling tank links to each other with described evaporation unit, is used for receiving the hydrogen chloride gas that described evaporation unit produces, and forms hydrochloric acid after condensation absorbs;
Described precipitation separation device links to each other with described evaporation unit, and the partial oxidation copper in the printed circuit board etching waste liquid behind the removal hydrogenchloride is converted into the copper hydroxide precipitation at described precipitation separation device, and makes precipitation and solution separating;
Described the first electrolysis dashpot links to each other with described precipitation separation device, separates the copper hydroxide precipitation that obtains and enters described the first electrolysis dashpot, and be converted into cupric ammine complex at described the first electrolysis dashpot;
Described electrolyzer links to each other with described the first electrolysis dashpot, and described cupric ammine complex is copper simple substance and ammonia at described electrolytic tank electrolysis;
Described ion-exchange membrane electrolyzer comprises positive column, buffer zone and cathodic area, described positive column and described buffer zone are separated by anionic membrane, described buffer zone and described cathodic area are separated by cationic membrane, described buffer zone is used for receiving the solution from after the removal copper hydroxide precipitation of described precipitation separation device, described positive column is used for electrolysis and produces the chlorine that passes into described cooling tank, and described cathodic area is used for electrolysis and produces copper simple substance and sodium hydroxide solution;
Described filtering basin link to each other with described ion-exchange membrane electrolyzer, are used for filtering the described copper simple substance of collection;
Described the second electrolysis dashpot links to each other with described filtering basin, is used for collecting described sodium hydroxide solution.
2. printed circuit board etching waste liquid treatment system according to claim 1, it is characterized in that, described electrolyzer links to each other with described the first electrolysis dashpot, and the ammonia that described electrolytic tank electrolysis produces enters described the first electrolysis dashpot, makes the copper hydroxide precipitation be converted into cupric ammine complex.
3. printed circuit board etching waste liquid treatment system according to claim 2, it is characterized in that, described the first electrolysis dashpot links to each other with described ion-exchange membrane electrolyzer, inject respectively positive column and the buffer zone of described ion-exchange membrane electrolyzer in described the first electrolysis dashpot through the electrolytic solution behind the described electrolytic tank electrolysis, inject described the first electrolysis dashpot through the electrolytic solution after the ion-exchange membrane electrolyzer electrolysis.
4. printed circuit board etching waste liquid treatment system according to claim 1, it is characterized in that, described the second electrolysis dashpot links to each other with described precipitation separation device, and with described sodium hydroxide solution injection precipitation separation device, the partial oxidation copper in the printed circuit board etching waste liquid behind the described removal hydrogenchloride is converted into the copper hydroxide precipitation.
5. printed circuit board etching waste liquid treatment system according to claim 1, it is characterized in that, described the second electrolysis dashpot links to each other with described ion-exchange membrane electrolyzer, and the sodium hydroxide solution in described the second electrolysis dashpot is injected the cathodic area of described ion-exchange membrane electrolyzer.
6. a printed circuit board etching waste liquid treatment system is characterized in that, comprising:
Reservoir;
Evaporation unit with the reservoir fluid communication;
Cooling tank with evaporation unit fluid communication extraction vaporised gas;
With the evaporation unit fluid communication to extract after evaporation remaining liq and in the precipitation separation device that precipitin reaction wherein occurs;
The first electrolysis dashpot of collecting with precipitation that will produce in the precipitation separation device with the precipitation separation device fluid communication;
Electrolyzer with the first electrolysis dashpot circulation;
Extract in the ion-exchange membrane electrolyzer that electrolysis wherein occurs with the remaining liq of inciting somebody to action after precipitation with the precipitation separation device fluid communication; And
The second electrolysis dashpot with the ion-exchange membrane electrolyzer fluid communication.
7. printed circuit board etching waste liquid treatment system according to claim 6 is characterized in that: described the second electrolysis dashpot and precipitation separation device fluid communication are to supply with the required liquid of precipitin reaction to precipitation separation device.
8. printed circuit board etching waste liquid treatment system according to claim 6, it is characterized in that: described ion-exchange membrane electrolyzer and the first electrolysis dashpot fluid communication further are provided with filtering basin to extract liquid in the first dashpot between ion-exchange membrane electrolyzer and the second electrolysis dashpot.
9. printed circuit board etching waste liquid treatment system according to claim 6, it is characterized in that: described ion-exchange membrane electrolyzer comprises positive column, cathodic area and the buffer zone between positive column and cathodic area, separated by anionic membrane between positive column and the buffer zone, separated by cationic membrane between cathodic area and the buffer zone, described cooling tank and positive column fluid communication, described precipitation separation device and buffer zone fluid communication, the first electrolysis dashpot and positive column and buffer zone be fluid communication simultaneously.
10. printed circuit board etching waste liquid treatment system according to claim 9 is characterized in that: described ion-exchange membrane electrolyzer further comprises a temporary tank with the positive column fluid communication, temporary tank further with the first electrolysis dashpot fluid communication.
11. printed circuit board etching waste liquid treatment system according to claim 6 is characterized in that: the gas that described cooling tank and ion-exchange membrane electrolyzer fluid communication produce to collect electrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256976 CN202643846U (en) | 2012-06-01 | 2012-06-01 | Etching waste liquid treatment system of printing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256976 CN202643846U (en) | 2012-06-01 | 2012-06-01 | Etching waste liquid treatment system of printing plate |
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| CN202643846U true CN202643846U (en) | 2013-01-02 |
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ID=47412980
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451676A (en) * | 2012-06-01 | 2013-12-18 | 库特勒自动化系统(苏州)有限公司 | System and method for treating printing plate etching waste liquid |
| CN103451675A (en) * | 2012-06-01 | 2013-12-18 | 库特勒自动化系统(苏州)有限公司 | System and method for treating printing plate etching waste liquid |
| CN103466770A (en) * | 2013-09-27 | 2013-12-25 | 中南大学 | Copper ammonia complexation wastewater treatment method |
| CN103556152A (en) * | 2013-11-11 | 2014-02-05 | 浙江科菲冶金科技股份有限公司 | Comprehensive recovery processing method for waste hybrid copper chloride etching liquid |
| CN104087942A (en) * | 2014-07-24 | 2014-10-08 | 广西新天德能源有限公司 | Etching waste liquid treatment equipment |
| CN106521552A (en) * | 2016-10-18 | 2017-03-22 | 河海大学 | Hydrogen peroxide-sulfuric acid micro-etching waste liquid copper recovery and electric waste liquid regeneration two-segment type platform rotational flow electrolysis device and method |
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2012
- 2012-06-01 CN CN 201220256976 patent/CN202643846U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451676A (en) * | 2012-06-01 | 2013-12-18 | 库特勒自动化系统(苏州)有限公司 | System and method for treating printing plate etching waste liquid |
| CN103451675A (en) * | 2012-06-01 | 2013-12-18 | 库特勒自动化系统(苏州)有限公司 | System and method for treating printing plate etching waste liquid |
| CN103451676B (en) * | 2012-06-01 | 2016-03-02 | 陶克（苏州）机械设备有限公司 | Printed circuit board etching waste liquid treatment system and method |
| CN103451675B (en) * | 2012-06-01 | 2016-06-22 | 库特勒自动化系统(苏州)有限公司 | Printed circuit board etching waste liquid processes system and method |
| CN103466770A (en) * | 2013-09-27 | 2013-12-25 | 中南大学 | Copper ammonia complexation wastewater treatment method |
| CN103556152A (en) * | 2013-11-11 | 2014-02-05 | 浙江科菲冶金科技股份有限公司 | Comprehensive recovery processing method for waste hybrid copper chloride etching liquid |
| CN103556152B (en) * | 2013-11-11 | 2015-08-05 | 浙江科菲科技股份有限公司 | A kind of mixed chlorinated copper spent etching solution synthetical recovery treatment process |
| CN104087942A (en) * | 2014-07-24 | 2014-10-08 | 广西新天德能源有限公司 | Etching waste liquid treatment equipment |
| CN106521552A (en) * | 2016-10-18 | 2017-03-22 | 河海大学 | Hydrogen peroxide-sulfuric acid micro-etching waste liquid copper recovery and electric waste liquid regeneration two-segment type platform rotational flow electrolysis device and method |
| CN106521552B (en) * | 2016-10-18 | 2018-05-18 | 河海大学 | A kind of hydrogen peroxide-sulfuric acid micro-etched waste liquid copper recycling two-part platform swirl electrolysis device regenerated with electric extraction raffinate and electrolytic method |
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