Electrolytic bath for cyclic regeneration of alkaline etching solution
By setting up an ion membrane plate, push rod, temperature sensor and PH detector in the electrolytic cell, the problem of difficult to obtain copper ions on the cathode reaction rod and difficult to monitor the parameters in the electrolytic cell, and the alkaline etching liquid regeneration cycle is improved Efficiency and electrolytic reaction rate.
Patent Information
- Application Number
- CN202420896869.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-28
AI Technical Summary
In general, during the electrolysis process of electrolytic cells, it is difficult to obtain electrons from copper ions on the cathode reaction rod, resulting in a reduction rate of reduction reaction, low efficiency of alkaline etching liquid regeneration cycle, and difficult to track the temperature and hydroxide ion concentration in the electrolytic cell in real time. Influences the electrolytic reaction rate.
An electrolytic cell including an electrolytic cell, an ion membrane plate, a temperature sensor, a PH detector and a push rod was designed to collect copper ions in the cathode reaction cell through the ion membrane plate, and the push rod cleans up the attached copper, a temperature sensor and a PH detection. The device monitors and adjusts the parameters in the electrolytic cell in real time to ensure the concentration of copper ions and hydroxide ions.
The copper ion reduction reaction rate is improved, the working efficiency of the alkaline etching liquid regeneration cycle is enhanced, and the temperature and hydroxide ion concentration are monitored and adjusted in real time, the electrolytic reaction rate is avoided.
Smart Images
Figure CN222251036U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrolytic cells, in particular to an electrolytic cell for recycling and regenerating alkaline etching solution. Background Art
[0002] The alkaline etching solution regeneration and circulation technology adopts solvent extraction-electrolytic reduction method to separate and recover copper from the spent copper etching solution. At the same time, by adding reagents, the spent copper etching solution can be effectively recovered and recycled. The whole process has the characteristics of continuous automation, novel equipment and low cost. The electrolytic cell is a device used for the electrolytic process. The spent copper etching solution undergoes a reduction reaction at the cathode copper ions of the electrolytic cell to form copper, and an oxidation reaction occurs at the anode hydroxide ions to generate oxygen.
[0003] In the electrolysis process of a general electrolytic cell, the copper ions on the cathode reaction rod obtain electrons to undergo a reduction reaction to generate copper. Copper is attached to the reaction rod, and it is not easy for the copper ions to obtain electrons, resulting in a decrease in the rate of the reduction reaction and a decrease in the efficiency of the regeneration cycle of the alkaline etching solution. When the electrolysis fails to corrode the copper solution, the temperature and the concentration of hydroxide ions in the electrolytic cell will affect the rate of the electrolytic reaction. The hydroxide ions on the anode reaction rod will undergo an oxidation reaction, and the concentration of hydroxide ions will continue to decrease. It is difficult for a general electrolytic cell to track the temperature and the concentration of hydroxide ions in real time. When the temperature and the concentration of hydroxide ions change significantly, the electrolytic reaction rate is likely to decrease. In view of the above problems, an electrolytic cell for the regeneration of alkaline etching solution is proposed to solve them. Utility Model Content
[0004] In order to solve the above technical problems, an electrolytic cell for recycling and regenerating alkaline etching solution is provided, which solves the above-mentioned problem that in the electrolysis process of the current general electrolytic cell, copper ions on the cathode reaction rod obtain electrons to undergo a reduction reaction to generate copper, copper adheres to the reaction rod, and it is not easy for the copper ions to obtain electrons, resulting in a decrease in the rate of the reduction reaction and a decrease in the regeneration cycle efficiency of the alkaline etching solution. When the electrolysis fails to etch the copper solution, the temperature and the concentration of hydroxide ions in the electrolytic cell will affect the rate of the electrolytic reaction, and the hydroxide ions on the anode reaction rod will undergo an oxidation reaction, and the hydroxide ion concentration will continue to decrease. It is difficult for the general electrolytic cell to track the temperature and the hydroxide ion concentration in real time, and when the temperature and the hydroxide ion concentration change significantly, the electrolytic reaction rate is likely to decrease.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an electrolytic cell for recycling and regenerating alkaline etching solution, comprising an electrolytic cell, the front and rear sides of the electrolytic cell are fixedly connected with mounting grooves, two groups of mounting grooves are arranged inside, the inside of the electrolytic cell and the left side of the ion membrane plate form a cathode reaction cell, the inside of the electrolytic cell and the right side of the ion membrane plate form an anode reaction cell, the upper left end of the electrolytic cell is fixedly connected with a first mounting plate, the upper right end of the first mounting plate is fixedly installed with a push rod, the lower right end of the first mounting plate is fixedly connected with a cathode reaction rod, and the output end of the push rod passes through A copper plate is fixedly connected to the upper side of the first mounting plate, the surface of the cathode reaction rod is slidably connected to the inside of the copper plate, a temperature sensor is fixedly installed at the middle position of the left side inside the cathode reaction cell, a second mounting plate is fixedly connected to the upper right end of the electrolytic cell, a pH detector is fixedly installed at the center position of the lower side inside the anode reaction cell, a mounting support is fixedly connected to the center position of the right side of the electrolytic cell, a water pump is fixedly installed on the upper side of the mounting support, a connecting pipe is fixedly connected to the input end of the water pump, and the left end of the connecting pipe passes through the right side plate of the electrolytic cell and is connected to the lower end of the inside of the anode reaction cell.
[0006] Preferably, a liquid infusion tube is fixedly connected to the upper left end of the electrolytic cell, and the right end of the liquid infusion tube passes through the left side plate of the electrolytic cell and is connected to the interior of the cathode reaction cell.
[0007] Preferably, a cathode port is provided at the upper left end of the first mounting plate.
[0008] Preferably, an anode port is provided at the upper right end of the second mounting plate.
[0009] Preferably, an anode reaction rod is fixedly connected to the lower left end of the second mounting plate.
[0010] Preferably, a sampling port is provided at the center of the upper side of the pH detector.
[0011] Preferably, the output end of the water pump is fixedly connected with a drain pipe.
[0012] Preferably, an operation panel is fixedly connected to the front center of the electrolytic cell.
[0013] Compared with the prior art, the utility model has the advantages that: the utility model can effectively gather copper ions in the cathode reaction pool by arranging the first mounting plate, the push rod, the copper cleaning plate, the infusion tube and the ion membrane plate, and continuously clean up the copper generated on the cathode reaction rod to prevent copper from being blocked, effectively ensure that the copper ions can easily obtain electrons, improve the rate of the reduction reaction, and ensure the regeneration cycle efficiency of the alkaline etching solution; by arranging the temperature sensor, the pH detector, the sampling port and the operation panel, the temperature and the hydroxide ion concentration in the electrolytic cell can be effectively measured in real time; when the temperature and the hydroxide ion concentration change, the temperature and the hydroxide ion concentration are adjusted by external additives to avoid the electrolytic reaction rate from being easily reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0015] Figure 2 It is a schematic diagram of the internal structure of the electrolytic cell in the utility model.
[0016] The numbers in the figure are:
[0017] 1. Electrolytic cell; 2. Mounting slot; 3. Ion membrane plate; 4. Cathode reaction cell; 5. Anode reaction cell; 6. Infusion tube; 7. First mounting plate; 8. Cathode port; 9. Push rod; 10. Cathode reaction rod; 11. Clear copper plate; 12. Temperature sensor; 13. Second mounting plate; 14. Anode port; 15. Anode reaction rod; 16. PH detector; 17. Sampling port; 18. Mounting support; 19. Water pump; 20. Connecting pipe; 21. Drain pipe; 22. Operation panel. DETAILED DESCRIPTION
[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0019] Reference Figure 1-2 As shown, an electrolytic cell for recycling and regenerating alkaline etching solution includes an electrolytic cell 1, wherein mounting grooves 2 are fixedly connected to the front and rear sides of the interior of the electrolytic cell 1, ion membrane plates 3 are arranged inside the two groups of mounting grooves 2, the interior of the electrolytic cell 1 and the left side of the ion membrane plate 3 form a cathode reaction cell 4, and the interior of the electrolytic cell 1 and the right side of the ion membrane plate 3 form an anode reaction cell 5, which effectively reduces the copper ion separator in the cathode reaction cell 4, and the upper left end of the electrolytic cell 1 is fixedly connected to an infusion tube 6, and the right end of the infusion tube 6 passes through the left plate of the electrolytic cell 1 and is connected to the interior of the cathode reaction cell 4.
[0020] A first mounting plate 7 is fixedly connected to the upper left end of the electrolytic cell 1, and a cathode port 8 is opened at the upper left end of the first mounting plate 7 to facilitate the connection of an external power supply. A push rod 9 is fixedly installed at the upper right end of the first mounting plate 7, and a cathode reaction rod 10 is fixedly connected to the lower right end of the first mounting plate 7. The output end of the push rod 9 passes through the upper side of the first mounting plate 7 and is fixedly connected to a copper cleaning plate 11. The surface of the cathode reaction rod 10 is slidably connected to the inside of the copper cleaning plate 11, which can effectively clean the copper attached to the surface of the cathode reaction rod 10. A temperature sensor 12 is fixedly installed at the middle position on the left side of the cathode reaction cell 4 to monitor the temperature inside the electrolytic cell 1 in real time.
[0021] A second mounting plate 13 is fixedly connected to the upper right end of the electrolytic cell 1, and an anode port 14 is provided at the upper right end of the second mounting plate 13 to facilitate the connection of an external power supply. An anode reaction rod 15 is fixedly connected to the lower left end of the second mounting plate 13. A pH detector 16 is fixedly installed at the lower center position of the inside of the anode reaction cell 5, and a sampling port 17 is provided at the upper center position of the pH detector 16, which can monitor the hydroxide ion concentration inside the failed copper corrosion liquid in real time. A mounting support 18 is fixedly connected to the right center position of the electrolytic cell 1, and a water pump 19 is fixedly installed on the upper side of the mounting support 18. A connecting pipe 20 is fixedly connected to the input end of the water pump 19, and the left end of the connecting pipe 20 passes through the right side plate of the electrolytic cell 1 and is connected to the lower end of the inside of the anode reaction cell 5. A drain pipe 21 is fixedly connected to the output end of the water pump 19, which can effectively transport the failed copper corrosion liquid after electrolysis is completed to the circulation system. An operation panel 22 is fixedly connected to the front center position of the electrolytic cell 1.
[0022] Working principle: the spent copper-corrosion liquid is input into the electrolytic cell 1 through the infusion tube 6, the copper ions in the spent copper-corrosion liquid are blocked by the ion membrane plate 3 and gathered in the cathode reaction cell 4, the hydroxide ions enter the anode reaction cell 5 through the ion membrane plate 3, and are connected to the external power supply through the cathode port 8 and the anode port 14, the hydroxide ions undergo an oxidation reaction on the anode reaction rod 15 to generate oxygen and electrons, the electrons pass through the wire to the cathode reaction rod 10, the copper ions obtain electrons on the cathode reaction rod 10 and undergo a reduction reaction to generate copper attached to the surface of the cathode reaction rod 10, when the attachment area is large, the push rod 9 will push the copper cleaning plate 11 to slide downward on the surface of the cathode reaction rod 10 to clean up the attached copper, with the progress of the electrolytic reaction, the hydroxide ion concentration will change significantly, the pH detector 16 monitors the hydroxide ion concentration in real time through the sampling port 17, the temperature sensor 12 transmits the temperature change to the operation panel 22, and the electrolytic reaction can be promoted by adding an alkaline solution of a certain temperature and concentration.
[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An electrolytic cell for recycling alkaline etching solution, comprising an electrolytic cell (1), characterized in that: The electrolytic cell (1) is fixedly connected to mounting grooves (2) on both the front and rear sides thereof, and two groups of mounting grooves (2) are provided with ion membrane plates (3) therein; the interior of the electrolytic cell (1) and the left side of the ion membrane plate (3) form a cathode reaction cell (4); the interior of the electrolytic cell (1) and the right side of the ion membrane plate (3) form an anode reaction cell (5); the upper left end of the electrolytic cell (1) is fixedly connected to a first mounting plate (7); the upper right end of the first mounting plate (7) is fixedly mounted with a push rod (9); the lower right end of the first mounting plate (7) is fixedly connected to a cathode reaction rod (10); the output end of the push rod (9) passes through the upper side of the first mounting plate (7) and is fixedly connected to a copper plate (11); the cathode reaction rod (10) is fixedly connected to the cathode reaction rod (11) and the cathode reaction rod (10) is fixedly connected to the cathode reaction rod (11). The surface of the response rod (10) is slidably connected to the inside of the copper plate (11); a temperature sensor (12) is fixedly installed at the middle position of the left side of the cathode reaction cell (4); a second mounting plate (13) is fixedly connected to the upper right end of the electrolytic cell (1); a pH detector (16) is fixedly installed at the center position of the lower side of the anode reaction cell (5); a mounting support (18) is fixedly connected to the center position of the right side of the electrolytic cell (1); a water pump (19) is fixedly installed on the upper side of the mounting support (18); a connecting pipe (20) is fixedly connected to the input end of the water pump (19); the left end of the connecting pipe (20) passes through the right side plate of the electrolytic cell (1) and is connected to the lower end of the inside of the anode reaction cell (5).
2. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: The upper left end of the electrolytic cell (1) is fixedly connected to a liquid infusion tube (6), and the right end of the liquid infusion tube (6) passes through the left side plate of the electrolytic cell (1) and is in communication with the interior of the cathode reaction cell (4).
3. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: A cathode port (8) is provided at the upper left end of the first mounting plate (7).
4. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: An anode port (14) is provided at the upper right end of the second mounting plate (13).
5. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: An anode reaction rod (15) is fixedly connected to the lower left end of the second mounting plate (13).
6. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: A sampling port (17) is provided at the center position of the upper side of the pH detector (16).
7. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: The output end of the water pump (19) is fixedly connected to a liquid discharge pipe (21).
8. The electrolytic cell for recycling alkaline etching solution according to claim 1, characterized in that: An operation panel (22) is fixedly connected to the center of the front side of the electrolytic cell (1).