CN211339693U - Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system - Google Patents
Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system Download PDFInfo
- Publication number
- CN211339693U CN211339693U CN201920821267.5U CN201920821267U CN211339693U CN 211339693 U CN211339693 U CN 211339693U CN 201920821267 U CN201920821267 U CN 201920821267U CN 211339693 U CN211339693 U CN 211339693U
- Authority
- CN
- China
- Prior art keywords
- copper
- inlet
- outlet
- water
- waste liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Physical Water Treatments (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model is suitable for a PCB waste liquid treatment field, the utility model provides an alkalescence copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system, including the extraction device, the washing device, stripping device and electrolytic device, through mixing alkalescence copper-containing etching waste liquid in the extraction device with the extractant, the raffinate that contains ammonia nitrogen wastewater gets into regeneration cistern and can circulate reuse, the rich copper oil phase carries out the washing purification in the washing device, the rich copper oil phase after the purification gets into stripping device and mixes with sulphuric acid and carries out the strip, copper salt solution after the strip carries out electrolysis copper extraction again, the solution after carrying the copper gets into stripping device once more and continues the strip, and the extractant after the strip squeezes into extraction device reuse again, copper in the alkalescence copper-containing etching waste liquid can the efficient be retrieved to whole circulation system, the cyclic utilization of ammonia nitrogen wastewater has also been realized simultaneously.
Description
Technical Field
The utility model belongs to PCB waste liquid treatment field especially relates to a copper-containing etching waste liquid of basicity regeneration and ammonia nitrogen wastewater circulation system.
Background
Alkaline etching is an essential process in the manufacture of printed circuit boards. The alkaline etching is generally suitable for manufacturing outer layer circuit patterns of multilayer printed boards and etching pure tin printed boards, and the main corrosion inhibitor is a metal corrosion inhibitor for pattern electroplating, such as gold, nickel, lead-tin alloy and the like. The alkaline etching solution is generally prepared from copper chloride, ammonium chloride and excessive ammonia water, and is divided into the following components according to the concentration of copper ions: etchant (containing no copper), solution in the etching cylinder (working solution) and waste etching solution (high copper concentration).
The etching process in the production of the circuit board is generally automatically controlled, the dissolved copper amount is continuously increased along with the progress of the etching process, the content of monovalent copper in the etching solution is gradually close to the maximum capacity, the etching speed is greatly reduced, the solution becomes extremely unstable and is easy to form a mud-shaped precipitate, and finally the requirement of the etching process cannot be met, and a specific gravity automatic adding system is required to overflow to supplement the sub-solution and discharge a high monovalent copper mother solution, namely etching waste solution. The etching waste liquid contains high-concentration copper, chlorine and ammonium ions, belongs to dangerous waste, and is directly discharged, so that not only is the resource waste caused, but also serious environmental problems are caused, and therefore, the regeneration equipment generally adopts an extraction method to regenerate the etching waste liquid. However, the existing regeneration equipment has large floor area, small treatment capacity and large water consumption, and simultaneously, a large amount of waste water containing ammonia nitrogen is generated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is how high efficiency retrieves the copper in the copper-containing etching waste liquid of basicity, enables produced ammonia nitrogen waste water cyclic utilization simultaneously.
In order to solve the technical problem, the utility model discloses a realize like this, an alkalescence copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulating system, include:
the extraction device extracts copper ions in the alkaline copper-containing etching waste liquid to obtain a copper-rich oil phase and discharges the copper-rich oil phase through the extraction oil outlet;
the washing device is provided with a washing oil inlet and a washing oil outlet, the washing oil inlet is connected with the extraction oil outlet through a pipeline, the copper-rich oil phase is washed and purified, and the purified copper-rich oil phase is discharged through the washing oil outlet;
the back extraction device is provided with a back extraction oil inlet, a back extraction oil outlet and a back extraction circulating outlet, wherein the back extraction oil inlet is connected with the water washing oil outlet through a pipeline, copper ions in the purified copper-rich oil phase are extracted again to obtain an extracting agent and a copper salt solution, the extracting agent enters the extraction device through the back extraction circulating outlet, and the copper salt solution is discharged through the back extraction oil outlet;
and the electrolysis device is provided with an electrolysis liquid inlet and an electrolysis circulating outlet, the electrolysis liquid inlet is connected with the back extraction oil outlet through a pipeline, the copper salt solution is subjected to electrolysis copper extraction treatment, and the solution subjected to copper extraction enters the back extraction device through the electrolysis circulating outlet.
Further, the extraction device comprises: the oil cylinder is used for storing an extracting agent; a waste liquid collecting tank for storing alkaline copper-containing etching waste liquid; the centrifugal extractor is provided with an extractant inlet, a waste liquid inlet, an extraction oil outlet and a regenerated liquid outlet, wherein the extractant inlet is connected with the oil cylinder through a pipeline, the waste liquid inlet is connected with the waste liquid collecting tank through a pipeline, and copper ions in the alkaline copper-containing etching waste liquid are extracted to obtain a copper-rich oil phase and an extraction residual liquid; the regeneration liquid tank is connected with a regeneration liquid outlet of the centrifugal extractor and is used for collecting the raffinate; the first pump is used for pumping the extractant in the oil cylinder to an extractant inlet of the centrifugal extractor through a pipeline; and the second pump is used for pumping the alkaline copper-containing etching waste liquid in the waste liquid collecting tank to a waste liquid inlet of the centrifugal extractor through a pipeline.
Further, the extraction device comprises: the first flowmeter is arranged on a pipeline between the oil cylinder and an extracting agent inlet of the centrifugal extractor; and the second flowmeter is arranged on a pipeline between the waste liquid collecting tank and a waste liquid inlet of the centrifugal extractor.
Further, the flow ratio of the extractant to the alkaline copper-containing etching waste liquid into the centrifugal extractor is between 2:1 and 1: 8.
Further, the water washing device includes: the city water tank is used for containing city water; the centrifugal washing machine is provided with a centrifugal water inlet, a centrifugal water outlet, the washing oil inlet and the washing oil outlet, the water inlet is connected with the city water cylinder through a pipeline, the copper-rich oil phase is washed by city water to obtain a water phase and a purified copper-rich oil phase, and the purified copper-rich oil phase is discharged to the back extraction device through the washing oil outlet; the washing tank is provided with a water inlet and a water outlet, the water inlet of the washing tank is connected with the centrifugal water outlet through a pipeline and is used for containing a water phase discharged by the centrifugal washing machine through the centrifugal water outlet; and the catalysis water inlet of the electro-catalysis tank is connected with the rinsing tank through a pipeline, the catalysis water outlet of the electro-catalysis tank is connected with the city water tank through a pipeline, and the water phase is subjected to regeneration treatment to obtain city water and is discharged into the city water tank.
Further, the flow ratio of the copper-rich oil phase to the city water entering the centrifugal washing machine is 1:1 to 1: 4.
Further, the stripping device includes: the sulfuric acid preparation tank is provided with a sulfuric acid circulation inlet and a sulfuric acid outlet and contains sulfuric acid; the centrifugal back extraction machine is provided with the back extraction oil inlet, the back extraction oil outlet, the back extraction sulfuric acid inlet and a back extraction circulating outlet, the back extraction sulfuric acid inlet is connected with the sulfuric acid outlet of the sulfuric acid blending cylinder through a pipeline, and the copper ions in the purified copper-rich oil phase are extracted again by using sulfuric acid.
Further, the flow ratio of the copper-rich oil phase to the sulfuric acid entering the centrifugal back extraction machine is 3:1 to 1: 3.
Further, the electrolysis apparatus comprises: the electrolyte storage tank is provided with a storage tank inlet and a storage tank outlet, and the storage tank inlet is connected with the back extraction oil outlet through a pipeline and is used for containing a copper salt solution; the electrolytic tank is provided with the electrolysis liquid inlet and the electrolysis circulating outlet, the electrolysis liquid inlet is connected with the outlet of the storage tank through a pipeline, and the solution after copper extraction enters the sulfuric acid circulating inlet through the electrolysis circulating outlet.
The utility model provides an alkalescence copper-containing etching waste liquid regeneration and ammonia nitrogen waste water circulation system is through mixing alkalescence copper-containing etching waste liquid with the extractant in the extraction device, the raffinate that contains ammonia nitrogen waste water gets into the regeneration cistern and can circulate reuse, the rich copper oil phase carries out the washing purification in the washing device, the rich copper oil phase after the purification gets into the stripping device and mixes with sulphuric acid and carries out the back extraction, copper salt solution after the back extraction carries out the electrolysis copper extraction again, the solution after the copper extraction gets into the stripping device once more and continues the back extraction, and the extractant after the back extraction is squeezed into extraction device again and is recycled, whole circulation system can the copper in the high-efficient recovery alkalescence copper-containing etching waste liquid, the cyclic utilization of ammonia nitrogen waste water has also been realized simultaneously.
Drawings
FIG. 1 is a schematic diagram of a recycling system for an alkaline copper-containing etching waste solution and ammonia nitrogen waste water according to a first embodiment of the present invention;
FIG. 2 is a structural diagram of a recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen waste water provided by a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the utility model discloses alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulating system that first embodiment provided includes extraction device 1, washing unit 2, stripping apparatus 3 and electrolytic device 4, and the connected mode between extraction device 1, washing unit 2, stripping apparatus 3 and electrolytic device 4 is the pipe connection.
The extraction device 1 extracts copper ions in the alkaline copper-containing etching waste liquid to obtain a copper-rich oil phase and discharges the copper-rich oil phase through an extraction oil outlet. The extraction principle of the alkaline copper-containing etching waste liquid is that the copper in the alkaline etching waste liquid is transferred into an extractant by utilizing the different solubility of copper ions in an organic extractant and the etching waste liquid and mixing the extractant and the alkaline copper-containing etching waste liquid to obtain the copper-containing extractant and an extraction residual liquid, the copper-containing extractant is called a copper-rich oil phase, the copper-containing extractant is subjected to water washing and back extraction treatment, the extraction residual liquid contains ammonia nitrogen and can be collected for recycling, wherein the extraction mainly comprises the following reaction steps: 2RH + Cu2+ → CuR2+2H + (RH denoting extractant).
The water washing device 2 is provided with a water washing oil inlet and a water washing oil outlet, the water washing oil inlet is connected with the extraction oil outlet through a pipeline, the copper-rich oil phase extracted by the extraction device 1 is washed and purified, and the purified copper-rich oil phase is discharged through the water washing oil outlet. The water washing device 2 adopts a similar compatibility principle to mix water with the copper-rich oil phase, so that water-soluble substances mixed in the copper-rich oil phase are dissolved in the water, and then the mixture is stood for layering to remove water, thereby achieving the purpose of cleaning the copper-rich oil phase and realizing water washing purification.
The back extraction device 3 is provided with a back extraction oil inlet, a back extraction oil outlet and a back extraction circulating outlet, wherein the back extraction oil inlet is connected with the water washing oil outlet through a pipeline, copper ions in the purified copper-rich oil phase are extracted again to obtain an extracting agent and a copper salt solution, the extracting agent enters the extraction device through the back extraction circulating outlet, and the copper salt solution is discharged through the back extraction oil outlet. The back extraction device 3 carries out back extraction treatment on the copper-rich oil phase and the sulfuric acid solution to obtain a copper sulfate solution so as to achieve the purpose of separating copper. Back extraction main reaction: CuR2+ H2SO4 → CuSO4+2 RH.
The electrolysis device 4 is provided with an electrolysis liquid inlet and an electrolysis circulating outlet, the electrolysis liquid inlet is connected with the back extraction oil outlet through a pipeline, the copper salt solution is subjected to electrolysis copper extraction treatment, and the solution after copper extraction enters the back extraction device through the electrolysis circulating outlet. After the electrolysis device 4 electrolyzes the copper simple substance, the copper simple substance can be used for production and utilization, and the recycling of copper resources is realized.
In the first embodiment, the alkaline copper-containing etching waste liquid is mixed with the extractant in the extraction device, the raffinate containing the ammonia nitrogen waste water enters the regeneration liquid tank to be recycled, the copper-rich oil phase is washed and purified in the washing device, the purified copper-rich oil phase enters the stripping device to be mixed with sulfuric acid to be stripped, the stripped copper salt solution is subjected to electrolytic copper extraction, the solution after copper extraction enters the stripping device again to be stripped continuously, the stripped extractant is injected into the extraction device again to be reused, the whole circulation system can efficiently recover copper in the alkaline copper-containing etching waste liquid, and meanwhile, the recycling of the ammonia nitrogen waste water is also realized.
In combination with the first embodiment, fig. 2 shows the structure of the recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen waste water provided by the second embodiment of the present invention.
In the second embodiment, the extraction device 1 further comprises a cylinder 11 for storing an extracting agent, a waste liquid collecting tank 12 for storing alkaline copper-containing etching waste liquid, a centrifugal extractor 13, a regeneration liquid tank 14, a first pump 15 and a second pump 16. The centrifugal extractor 13 is provided with an extractant inlet, a waste liquid inlet, an extraction oil outlet and a regenerated liquid outlet, wherein the extractant inlet is connected with the oil cylinder 11 through a pipeline, the waste liquid inlet is connected with the waste liquid collecting tank 12 through a pipeline, and the centrifugal extractor 13 is used for extracting copper ions in the alkaline copper-containing etching waste liquid to obtain a copper-rich oil phase and an extraction residual liquid. The regeneration liquid tank 14 is connected with a regeneration liquid outlet of the centrifugal extractor and is used for collecting the extraction raffinate. The first pump 15 is used for pumping the extractant in the oil cylinder 11 to an extractant inlet of the centrifugal extractor 13 through a pipeline. A second pump 16 is provided for pumping the alkaline copper-containing etching waste liquor in the waste liquor collection tank 14 through a pipe to the waste liquor inlet of the centrifugal extractor 13. Wherein the flow ratio of the extracting agent to the alkaline copper-containing etching waste liquid entering the centrifugal extractor 13 is between 2:1 and 1: 8.
Further, in order to facilitate the control of the flow rate of the extraction solvent and the waste liquid, a first flow meter 17 may be installed on a pipeline between the oil cylinder and the extraction solvent inlet of the centrifugal extractor 13, and a second flow meter 18 may be installed on a pipeline between the waste liquid collecting tank 14 and the waste liquid inlet of the centrifugal extractor 13.
In the second embodiment, the water washing device 2 includes a city water tank 21 for containing city water, a centrifugal water washing machine 22, a water washing tank 23 and an electro-catalysis tank 24, the centrifugal water washing machine 22 has a centrifugal water inlet, a centrifugal water outlet, a water washing oil inlet and a water washing oil outlet, the water washing oil inlet is connected with the extraction oil outlet of the extraction device 1 through a pipeline, the water inlet is connected with the city water tank 21 through a pipeline, the city water is used for washing the copper-rich oil phase to obtain a water phase and a purified copper-rich oil phase, and the purified copper-rich oil phase is discharged to the back extraction device 3 through the water washing oil outlet. The rinsing bath 23 has a water inlet and a water outlet, and the water inlet is connected with the centrifugal water outlet of the centrifugal rinsing machine 22 through a pipeline and is used for containing the water phase discharged by the centrifugal rinsing machine through the centrifugal water outlet. The water inlet of the electro-catalysis tank 24 is connected with the water outlet of the rinsing tank 23 through a pipeline, the catalytic water outlet is connected with the city water tank 21 through a pipeline, and the water phase is regenerated to obtain city water and is discharged into the city water tank 21. The flow ratio of the copper-rich oil phase to the city water entering the centrifugal water washing machine 22 needs to be controlled between 1:1 and 1: 4.
In the second embodiment, the stripping device 3 comprises a sulfuric acid preparation cylinder 31 and a centrifugal stripping machine 32, wherein the sulfuric acid preparation cylinder 31 is provided with a sulfuric acid circulation inlet and a sulfuric acid outlet and contains sulfuric acid; the centrifugal back-extraction machine 32 has a back-extraction oil inlet, a back-extraction oil outlet, a back-extraction sulfuric acid inlet, and a back-extraction circulation outlet, wherein the back-extraction oil inlet is connected with the water washing oil outlet of the water washing device 2 through a pipeline, the back-extraction sulfuric acid inlet is connected with the sulfuric acid outlet of the sulfuric acid blending cylinder 31 through a pipeline, copper ions in the purified copper-rich oil phase are extracted again by using sulfuric acid to obtain an extractant and a copper salt solution (namely, a copper sulfate solution), the obtained extractant enters the extraction device 1 through the back-extraction circulation outlet, and the copper salt solution is discharged through the back-extraction oil outlet. The flow ratio of the copper-rich oil phase and the sulfuric acid entering the centrifugal back extraction machine 31 is 3:1 to 1: 3.
In the second embodiment, the electrolysis device 4 comprises an electrolyte storage tank 41 and an electrolysis tank 42, wherein the electrolyte storage tank 41 is used for containing a copper salt solution and is provided with a storage tank inlet and a storage tank outlet, and the storage tank inlet is connected with a back extraction oil outlet of the back extraction device 3 through a pipeline; the electrolytic tank 42 is provided with an electrolysis liquid inlet and an electrolysis circulation outlet, the electrolysis liquid inlet is connected with the storage tank outlet of the storage tank 41 through a pipeline, copper salt solution is subjected to electrolysis copper extraction treatment, and the solution after copper extraction enters the sulfuric acid circulation inlet of the sulfuric acid blending tank 31 through the electrolysis circulation outlet.
The working principle of the recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen waste water provided by the second embodiment is further described by an embodiment as follows: collecting 10t of alkaline copper-containing etching waste liquid, wherein the content of copper ions is 142g/L, pumping the alkaline copper-containing etching waste liquid into a centrifugal extractor 13 by a second pump 16 pump at a flow rate of 20L/min, simultaneously pumping an extracting agent into the centrifugal extractor 13 by a first pump 15 pump at a flow rate of 10L/min, connecting a centrifugal water washing machine 22 with the centrifugal extractor 13, feeding a copper-rich oil phase into the centrifugal water washing machine 22 at a flow rate of 20L/min, feeding city water into the centrifugal water washing machine 22 at a flow rate of 20L/min to wash the copper-rich oil phase with water, feeding the washed water phase into an electro-catalysis tank 24, opening a current, carrying out electro-catalysis regeneration at a current density of 200A/square meter, and circularly utilizing the regenerated water to be discharged into a water tank 21 in the market. The centrifugal back-extraction machine 32 was connected to the centrifugal washing machine 22, and 10% sulfuric acid was fed into the centrifugal back-extraction machine 32 at a flow rate of 30L/min for back-extraction. The copper salt solution after the back extraction is injected into the electrolytic bath 42, and the extractant after the back extraction is reused in the oil cylinder 11. And (3) turning on a power supply of the electrolytic cell 42, and turning on a current density of 150A/square meter to electrolyze the copper salt solution to extract copper for 1.34t, thereby realizing the cyclic utilization of water and the copper extraction.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides an alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen waste water circulation system which characterized in that includes:
the extraction device extracts copper ions in the alkaline copper-containing etching waste liquid to obtain a copper-rich oil phase and discharges the copper-rich oil phase through the extraction oil outlet;
the washing device is provided with a washing oil inlet and a washing oil outlet, the washing oil inlet is connected with the extraction oil outlet through a pipeline, the copper-rich oil phase is washed and purified, and the purified copper-rich oil phase is discharged through the washing oil outlet;
the back extraction device is provided with a back extraction oil inlet, a back extraction oil outlet and a back extraction circulating outlet, wherein the back extraction oil inlet is connected with the water washing oil outlet through a pipeline, copper ions in the purified copper-rich oil phase are extracted again to obtain an extracting agent and a copper salt solution, the extracting agent enters the extraction device through the back extraction circulating outlet, and the copper salt solution is discharged through the back extraction oil outlet;
and the electrolysis device is provided with an electrolysis liquid inlet and an electrolysis circulating outlet, the electrolysis liquid inlet is connected with the back extraction oil outlet through a pipeline, the copper salt solution is subjected to electrolysis copper extraction treatment, and the solution subjected to copper extraction enters the back extraction device through the electrolysis circulating outlet.
2. The alkaline copper-containing etching waste liquor regeneration and ammonia nitrogen wastewater recirculation system of claim 1, wherein said extraction apparatus comprises:
the oil cylinder is used for storing an extracting agent;
a waste liquid collecting tank for storing alkaline copper-containing etching waste liquid;
the centrifugal extractor is provided with an extractant inlet, a waste liquid inlet, an extraction oil outlet and a regenerated liquid outlet, wherein the extractant inlet is connected with the oil cylinder through a pipeline, the waste liquid inlet is connected with the waste liquid collecting tank through a pipeline, and copper ions in the alkaline copper-containing etching waste liquid are extracted to obtain a copper-rich oil phase and an extraction residual liquid;
the regeneration liquid tank is connected with a regeneration liquid outlet of the centrifugal extractor and is used for collecting the raffinate;
the first pump is used for pumping the extractant in the oil cylinder to an extractant inlet of the centrifugal extractor through a pipeline;
and the second pump is used for pumping the alkaline copper-containing etching waste liquid in the waste liquid collecting tank to a waste liquid inlet of the centrifugal extractor through a pipeline.
3. The alkaline copper-containing etching waste liquor regeneration and ammonia nitrogen wastewater recirculation system of claim 2, wherein said extraction apparatus comprises:
the first flowmeter is arranged on a pipeline between the oil cylinder and an extracting agent inlet of the centrifugal extractor;
and the second flowmeter is arranged on a pipeline between the waste liquid collecting tank and a waste liquid inlet of the centrifugal extractor.
4. The recycling system of waste alkaline copper-containing etching solution and ammonia nitrogen wastewater as claimed in claim 2 or 3, wherein the flow ratio of the extractant to the waste alkaline copper-containing etching solution entering the centrifugal extractor is between 2:1 and 1: 8.
5. The recycling system for copper-containing alkaline etching waste liquid and ammonia nitrogen waste water of claim 1, wherein the washing device comprises:
the city water tank is used for containing city water;
the centrifugal washing machine is provided with a centrifugal water inlet, a centrifugal water outlet, the washing oil inlet and the washing oil outlet, the water inlet is connected with the city water cylinder through a pipeline, the copper-rich oil phase is washed by city water to obtain a water phase and a purified copper-rich oil phase, and the purified copper-rich oil phase is discharged to the back extraction device through the washing oil outlet;
the washing tank is provided with a water inlet and a water outlet, the water inlet of the washing tank is connected with the centrifugal water outlet through a pipeline and is used for containing a water phase discharged by the centrifugal washing machine through the centrifugal water outlet;
and the catalysis water inlet of the electro-catalysis tank is connected with the rinsing tank through a pipeline, the catalysis water outlet of the electro-catalysis tank is connected with the city water tank through a pipeline, and the water phase is subjected to regeneration treatment to obtain city water and is discharged into the city water tank.
6. The recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen wastewater as claimed in claim 5, wherein the flow ratio of the copper-rich oil phase to the city water entering the centrifugal washing machine is 1:1 to 1: 4.
7. The recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen waste water according to claim 1, wherein the stripping device comprises:
the sulfuric acid preparation tank is provided with a sulfuric acid circulation inlet and a sulfuric acid outlet and contains sulfuric acid;
the centrifugal back extraction machine is provided with the back extraction oil inlet, the back extraction oil outlet, a back extraction sulfuric acid inlet and a back extraction circulating outlet, wherein the back extraction sulfuric acid inlet is connected with a sulfuric acid outlet of the sulfuric acid blending cylinder through a pipeline, and the copper ions in the purified copper-rich oil phase are extracted again by using sulfuric acid.
8. The recycling system for alkaline copper-containing etching waste liquid and ammonia nitrogen wastewater as claimed in claim 7, wherein the flow ratio of the copper-rich oil phase and the sulfuric acid entering the centrifugal stripping machine is 3:1 to 1: 3.
9. The recycling system for copper-containing alkaline etching waste solution and ammonia nitrogen waste water of claim 7 or 8, wherein the electrolyzing device comprises:
the electrolyte storage tank is provided with a storage tank inlet and a storage tank outlet, and the storage tank inlet is connected with the back extraction oil outlet through a pipeline and is used for containing a copper salt solution;
the electrolytic tank is provided with the electrolysis liquid inlet and the electrolysis circulating outlet, the electrolysis liquid inlet is connected with the outlet of the storage tank through a pipeline, and the solution after copper extraction enters the sulfuric acid circulating inlet through the electrolysis circulating outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821267.5U CN211339693U (en) | 2019-05-31 | 2019-05-31 | Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821267.5U CN211339693U (en) | 2019-05-31 | 2019-05-31 | Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211339693U true CN211339693U (en) | 2020-08-25 |
Family
ID=72103723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920821267.5U Active CN211339693U (en) | 2019-05-31 | 2019-05-31 | Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211339693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144590A (en) * | 2019-05-31 | 2019-08-20 | 深圳市泓达环境科技有限公司 | Alkaline copper-containing etching waste solution regeneration and the ammonia nitrogen waste water circulatory system |
-
2019
- 2019-05-31 CN CN201920821267.5U patent/CN211339693U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144590A (en) * | 2019-05-31 | 2019-08-20 | 深圳市泓达环境科技有限公司 | Alkaline copper-containing etching waste solution regeneration and the ammonia nitrogen waste water circulatory system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111560615B (en) | Method for on-line recovery of copper and chlorine from acidic etching waste liquid and regeneration of etching liquid | |
| CN102839379A (en) | On-line treatment method of acidic etching solution | |
| CN102912142B (en) | Method for recycling copper from etching solution through combination of multistage cross current and counter current | |
| CN102618873B (en) | Ammonia washing water circulation system and method of PCB (Printed Circuit Board) etching line | |
| CN103233128A (en) | Method for recovering copper from acid waste etching solution | |
| CN104451770A (en) | Combined resource utilization method and device of brownification waste liquid and microetching waste liquid | |
| CN111621788A (en) | Method for recovering copper from alkaline etching waste liquid | |
| CN101492186A (en) | Method and device for circulation and regeneration of acidic waste etching liquid | |
| CN110144590A (en) | Alkaline copper-containing etching waste solution regeneration and the ammonia nitrogen waste water circulatory system | |
| CN101024546B (en) | Copper etching liquid regeneration circulation method and apparatus | |
| CN211339693U (en) | Alkaline copper-containing etching waste liquid regeneration and ammonia nitrogen wastewater circulation system | |
| CN109628748B (en) | Extraction electrodeposition device and extraction electrodeposition method for etching solution | |
| CN103397341B (en) | A kind of method reclaiming copper from alkaline spent etching solution | |
| CN107541748A (en) | A kind of low copper containing micro-etched waste liquid pretreating process and pretreatment system | |
| CN101003396A (en) | System and method for treating wastewater of containing copper from microetching printed circuit board | |
| CN107557581A (en) | A kind of method that copper is reclaimed from acidic waste etching liquid | |
| CN112110532B (en) | Method for treating chloride ions in chlorine-containing solution by using copper powder | |
| CN103025667A (en) | System and method for recovering spent etching solution | |
| CN101285195A (en) | Indirect regeneration for waste etching solution and recovery processing system for copper | |
| CN101676229A (en) | Fully closed system for regenerating alkaline etching liquid and recovering copper in PCB | |
| CN103628064A (en) | Recycling system of acid etching liquid | |
| CN201704154U (en) | Integrated PCB cupric waste liquid treatment system | |
| CN204625787U (en) | A kind of alkaline etching liquid electrolysis cycle regeneration system rapidly | |
| CN103290415B (en) | Treatment process and system of acid etching solution | |
| CN202499908U (en) | Alkaline etching liquid regeneration and copper recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |