A soldering electrolyte indium processing box and its extraction device

Abstract

The utility model discloses a kind of soldering electrolyte indium processing box and its extraction device, it is related to precious metal extraction technical field in wet method, comprising: box, stirring mixing chamber and sedimentation chamber, stirring part and extractant passage;Box is equipped with containing cavity inside;Containing cavity is divided into stirring mixing chamber and sedimentation chamber by partition, first through-hole is equipped on the partition surface, to realize stirring mixing chamber and sedimentation chamber intercommunication;Stirring part is located in stirring mixing chamber, and the mounting end of stirring part is rotatably connected in the top wall of box;Extractant passage is located in sedimentation chamber, and is fixed in the inner side wall of box, to communicate adjacent box, can ensure on the basis that electrolyte is not destroyed, so that extractant is recycled, valuable metal is effectively recovered, simultaneously, using relatively independent extractant passage, electrolyte can be avoided to be destroyed, can normally enter electrolytic system.

Description

Technical Field

[0001] This utility model relates to the field of wet precious metal extraction technology, and more specifically to an indium extraction device for solder electrolyte. Background Technology

[0002] As the sources of secondary raw materials processed in tin smelting systems become increasingly diverse, coupled with the recycling of smelting recyclables during the smelting process, the content of other impurity elements in crude tin products, besides conventional impurities such as iron, arsenic, copper, antimony, bismuth, and lead, is gradually increasing. For example, the content of the valuable metal indium has increased significantly. Currently, indium in tin smelting systems is mainly enriched in fumes and solder electrolytes, with solder electrolytes being the primary source for indium enrichment and recovery. Approximately 60% of indium enters the electrolyte during crude solder electrolysis, while the remaining approximately 40% enters refined tin products and fumes, or is lost due to slag depletion.

[0003] The continuous increase in tin production has led to a surge in intermediate products, wastewater, waste residue, waste gas, and by-products, particularly the valuable metal indium. This indium continuously accumulates and circulates within the system, which, over time, hinders the stable operation of the solder electrolytic wet refining system and negatively impacts the quality of the tin product. Therefore, it is essential to enhance indium processing and recover this valuable metal. Researching indium recovery equipment is crucial to further improve the indium recovery rate within the system and fully realize the value of indium.

[0004] Therefore, in view of the existing problems, how to provide a solder electrolyte indium treatment box and its extraction device that can ensure the recycling of the extractant without damaging the electrolyte, effectively recover valuable metals, and at the same time, use a relatively independent extractant channel to avoid damage to the electrolyte and allow it to enter the electrolysis system normally is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a solder electrolyte indium treatment box and its extraction device, which can ensure that the extractant can be recycled without damaging the electrolyte, effectively recovering valuable metals. At the same time, by using a relatively independent extractant channel, the electrolyte can be prevented from being damaged and can enter the electrolysis system normally.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A solder electrolyte indium treatment box, comprising:

[0008] The box body has a receiving cavity inside;

[0009] The container cavity is divided into a mixing chamber and a sedimentation chamber by a partition plate. The partition plate has a first through hole to allow communication between the mixing chamber and the sedimentation chamber.

[0010] A stirring element is located in the mixing chamber, and the mounting end of the stirring element is rotatably connected to the top wall of the housing.

[0011] Through the above technical solution, this utility model provides an indium treatment tank for solder electrolyte. Firstly, it achieves efficient mixing and precipitation separation. A partition plate divides the tank interior into a mixing chamber and a precipitation chamber, with a first through-hole on the partition plate connecting the two chambers. This structural design allows the solder electrolyte to fully mix and react with the extractant in the mixing chamber. The mixture then flows into the precipitation chamber for solid-liquid separation or separation of different phases. The stirring element is located in the mixing chamber; its rotation promotes rapid and uniform mixing of the electrolyte and extractant, improving reaction efficiency and ensuring sufficient contact between valuable metals such as indium and the extractant, accelerating the indium extraction process. This achieves efficient mixing and precipitation separation, creating favorable conditions for subsequent indium recovery. Secondly, it ensures the stability of the extraction process. The relatively independent yet interconnected structure of the mixing chamber and the precipitation chamber provides a stable environment for the extraction process. In the mixing chamber, the continuous action of the stirrer ensures the dynamic progress of the reaction, maintaining effective interaction between the extractant and indium in the electrolyte. In the sedimentation chamber, the relatively static environment facilitates the natural sedimentation and separation of different phases after extraction, avoiding phase mixing disorder caused by excessive stirring, ensuring the stability of the extraction process, and thus guaranteeing the quality and efficiency of indium recovery.

[0012] Preferably, in the aforementioned solder electrolyte indium treatment tank, the stirring and mixing chamber is divided into a stirring chamber and a mixing chamber by a partition, and a second through hole is provided on the partition to connect the stirring chamber and the mixing chamber. An inlet is provided on the side wall of the mixing chamber; the stirring element is located in the inner cavity of the stirring chamber. Firstly, this layered structure of the stirring and mixing chamber optimizes the mixing process and effect. The electrolyte and extractant are first vigorously stirred and mixed in the stirring chamber by the stirring element to initially form a relatively uniform mixture; then the mixture flows into the mixing chamber through the second through hole for further settling and mixing or for more thorough mixing and reaction with other additives (such as regulators added through the inlet). This stepwise mixing method makes the mixing process more detailed and thorough, helps to improve the extraction rate of indium by the extractant, enhances the mixing effect, and ensures that indium can be extracted more effectively from the electrolyte. Secondly, it improves operational flexibility and adaptability. The partition and the different functional division of the stirring chamber and the mixing chamber enhance operational flexibility and adaptability. Depending on the different extraction requirements and electrolyte characteristics, parameters such as the relative volume of the stirring chamber and the mixing chamber, the stirring intensity, and the mixing time can be adjusted, so that the entire processing tank can better adapt to the indium extraction task of solder electrolytes with different concentrations and compositions, thereby improving the equipment's versatility and applicability, and enhancing its operational flexibility and adaptability in actual production.

[0013] Preferably, in the aforementioned solder electrolyte indium treatment tank, a baffle is further included. The baffle is located in the sedimentation chamber near the partition plate, and its surface is perpendicular to the length direction of the tank. The upper end of the baffle is fixed to the top wall of the tank, and the lower end of the baffle has a pre-reserved channel with the bottom wall of the tank. Firstly, it enhances the sedimentation separation effect. The baffle in the sedimentation chamber provides a certain degree of obstruction and guidance, which helps to enhance the sedimentation separation effect. When the mixture flows from the mixing chamber into the sedimentation chamber, the baffle slows down the flow rate of the mixture, allowing solid particles or heavier phase substances more time to settle, preventing the precipitated substances from resuspending due to the mixture directly impacting the bottom of the sedimentation chamber. Simultaneously, the baffle guides the mixture to flow orderly along its surface and channels, making the sedimentation process more stable and uniform, further improving the efficiency and quality of sedimentation separation, ensuring that the sedimentation chamber can more effectively separate substances of different phases, and providing purer materials for subsequent indium recovery operations. Secondly, it prevents backflow and secondary mixing. The height of the reserved channel is lower than the height of the second through-hole and the bottom wall of the tank. This ingenious design prevents backflow of the mixed liquid in the settling chamber during the settling process. If backflow occurs during settling, it may cause the separated substances to remix, affecting the settling separation effect. This channel design ensures that the mixed liquid can only flow out slowly through the channel, and the outflowing liquid is located at the top of the settling chamber, preventing impact on the precipitate at the bottom. This effectively avoids secondary mixing of the mixed liquid in the settling chamber, ensuring the smooth progress of the settling separation process. It also ensures that the settling chamber can stably output the separated substances of different phases, providing a reliable guarantee for subsequent process flows.

[0014] Preferably, in the aforementioned solder electrolyte indium treatment tank, the height of the channel is lower than the height of the second through-hole and the bottom wall of the tank. This height difference design enhances the functional zoning of the sedimentation chamber, allowing for a clearer division of the sedimentation zone and the outflow zone. The sedimentation zone, located in the lower part of the sedimentation chamber, is mainly used for the settling of solid particles or heavier phase substances in the mixture; the outflow zone, located in the upper part of the sedimentation chamber, guides the settled liquid out of the sedimentation chamber through the channel. This clear functional zoning helps improve the working efficiency of the sedimentation chamber, making the sedimentation process more focused and efficient, further enhancing the sedimentation separation effect, and ensuring that the sedimentation chamber can better complete its sedimentation separation task in the indium treatment process, providing higher-quality raw materials for subsequent indium recovery operations. Simultaneously, from the perspective of the entire solder electrolyte indium treatment tank process flow, the reasonable design of the channel height optimizes the overall process flow. It ensures that the mixture in the sedimentation chamber can be separated smoothly and orderly during the sedimentation process, avoiding the complexity of subsequent process steps caused by incomplete sedimentation or resuspension of the precipitate. The precipitated liquid can flow smoothly through the channel to the next processing stage, such as the recycling of the extractant or further processing, ensuring the continuity and smoothness of the entire indium processing flow, improving the operating efficiency and stability of the entire device, and providing strong support for achieving an efficient and stable indium recovery process.

[0015] Preferably, in the aforementioned solder electrolyte indium treatment tank, the stirring component includes a mounting shaft and impellers. One end of the mounting shaft is fixed to the top plate of the tank body, and the other end is located in the inner cavity of the stirring chamber. Multiple impellers are mounted on the other end of the mounting shaft. This design improves stirring efficiency and uniformity. The impeller configuration significantly enhances stirring efficiency and uniformity. In the mixing chamber, multiple impellers rotate at high speed with the rotation of the mounting shaft, generating a strong stirring effect, allowing the solder electrolyte and extractant to mix quickly and thoroughly within the mixing chamber. The special structure and layout of the impellers generate complex fluid flow patterns, enabling the mixture to flow in multiple directions and at multiple levels within the mixing chamber, further enhancing the uniformity of mixing. This ensures that indium and the extractant in the electrolyte reach an ideal mixing state in a short time, providing a strong guarantee for efficient indium extraction and improving the efficiency and quality of the entire indium treatment process. It also enhances the operational stability of the equipment; the stable structure of the mounting shaft provides solid support for the operation of the stirring component. One end of the mounting shaft is fixed to the top plate of the tank. This fixing method ensures the stability of the agitator during operation, preventing displacement or damage due to vibration or external forces during mixing. Stable agitator operation is crucial for the normal operation of the entire solder electrolyte indium processing tank. It ensures the mixing chamber continuously and stably performs its mixing function, guarantees the continuity and stability of the entire indium processing process, reduces the impact of equipment failure on the production process, and improves the reliability and service life of the equipment.

[0016] An indium extraction device for solder electrolyte includes the aforementioned indium treatment tank for solder electrolyte and an extractant channel. The stirring and mixing chamber and the precipitation chamber of each adjacent treatment tank are close to each other, and the side walls of the adjacent tanks are fixedly abutting each other along their length. The extractant channel is located in the precipitation chamber and is fixed to the inner side wall of the tank to connect with the adjacent tanks.

[0017] The multiple processing boxes are divided into four parts according to their functions: extraction section, back-extraction section, acid washing section, and water washing section.

[0018] Through the above technical solution, this utility model provides an indium extraction device for solder electrolyte. Firstly, it enables integrated processing throughout the entire process. This extraction device design achieves integrated processing of indium extraction from solder electrolyte. By dividing and combining multiple processing tanks according to different functions, a complete indium extraction process is formed, encompassing extraction, back-extraction, acid washing, and water washing, enabling efficient recovery of indium from solder electrolyte within a single device. This integrated design reduces material transfer and intermediate operations during indium processing, lowers production costs and operational risks, and improves the efficiency and reliability of the entire indium recovery process, providing an efficient and convenient solution for industrial indium recovery. Secondly, it improves the recycling rate of the extractant. The extractant channel is located in the sedimentation chamber and fixed to the inner side wall of the tank to connect adjacent tanks. This structural design allows the extractant to circulate between processing tanks with different functions. In the extraction section, the extractant comes into full contact with the solder electrolyte and extracts the indium. Subsequently, the extractant flows through the extractant channel into the back-extraction section for back-extraction to recover the indium. It then enters the acid washing section to remove impurities, and finally, after washing in the water washing section, it returns to the extraction section for reuse. This recycling method significantly improves the utilization rate of the extractant, reduces its consumption, lowers production costs, and also helps reduce environmental pollution, aligning with the development concept of green chemistry and enhancing the economic efficiency and environmental friendliness of the entire indium extraction unit.

[0019] Preferably, in the above-mentioned indium extraction device for solder electrolyte, the bottom wall of the sedimentation chamber of the extraction unit is provided with a discharge hole. The discharge hole provides a convenient channel for the material to be discharged from the sedimentation chamber. During indium extraction, a certain amount of precipitate accumulates at the bottom of the sedimentation chamber. This precipitate may contain unextracted indium or other impurities. By providing a discharge hole in the bottom wall of the sedimentation chamber, these precipitates can be discharged from the sedimentation chamber in a timely and effective manner, preventing excessive accumulation of precipitates that could affect subsequent extraction results. The discharged precipitate can be further recycled to extract residual indium, improving the indium recovery rate and maximizing resource utilization. This also ensures the normal operation of the sedimentation chamber and maintains the stability and efficiency of the entire extraction device. Furthermore, it ensures the long-term stable operation of the extraction device. From the perspective of the long-term operation of the entire extraction device, the reasonable design of the discharge hole helps ensure the stable operation of the device. Timely discharge of precipitates can prevent blockage or damage to the internal structure of the precipitation chamber and extend its service life. At the same time, a stable material discharge process is also conducive to maintaining the material balance and process parameter stability of the entire extraction unit, reducing process fluctuations and equipment failures caused by precipitate accumulation, ensuring that the extraction unit can maintain a high-efficiency and stable operating state for a long time, providing a reliable guarantee for the continuous recovery of indium, and reducing equipment maintenance costs and the risk of production interruption.

[0020] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a solder electrolyte indium treatment box and its extraction device, which has the following beneficial effects:

[0021] 1. This utility model provides an indium treatment tank for solder electrolyte. Firstly, it enables efficient mixing and precipitation separation. The tank interior is divided into a mixing chamber and a precipitation chamber by a partition plate, with a first through-hole on the partition plate connecting the two chambers. This structural design allows the solder electrolyte to fully mix and react with the extractant in the mixing chamber. The mixture then flows into the precipitation chamber for solid-liquid separation or separation of different phases. The stirring element is located in the mixing chamber; its rotation promotes rapid and uniform mixing of the electrolyte and extractant, improving reaction efficiency and ensuring sufficient contact between valuable metals such as indium and the extractant, accelerating the indium extraction process. This achieves efficient mixing and precipitation separation, creating favorable conditions for subsequent indium recovery. Secondly, it ensures the stability of the extraction process. The relatively independent yet interconnected structure of the mixing chamber and the precipitation chamber provides a stable environment for the extraction process. In the mixing chamber, the continuous action of the stirrer ensures the dynamic progress of the reaction, maintaining effective interaction between the extractant and indium in the electrolyte. In the sedimentation chamber, the relatively static environment facilitates the natural sedimentation and separation of different phases after extraction, avoiding phase mixing disorder caused by excessive stirring, ensuring the stability of the extraction process, and thus guaranteeing the quality and efficiency of indium recovery.

[0022] 2. This utility model provides an indium extraction device for solder electrolyte. Firstly, it enables integrated processing throughout the entire process. The design of this extraction device achieves integrated processing of indium extraction from solder electrolyte. By dividing and combining multiple processing tanks according to different functions, a complete indium extraction process is formed, encompassing extraction, back-extraction, acid washing, and water washing, enabling efficient recovery of indium from solder electrolyte within a single device. This integrated design reduces material transfer and intermediate operations during indium processing, lowering production costs and operational risks, and improving the efficiency and reliability of the entire indium recovery process, providing an efficient and convenient solution for industrial indium recovery. Secondly, it improves the recycling rate of the extractant. The extractant channel is located in the sedimentation chamber and fixed to the inner side wall of the tank to connect adjacent tanks. This structural design allows the extractant to circulate between processing tanks with different functions. In the extraction section, the extractant comes into full contact with the solder electrolyte and extracts the indium. Subsequently, the extractant flows through the extractant channel into the back-extraction section for back-extraction to recover the indium. It then enters the acid washing section to remove impurities, and finally, after washing in the water washing section, it returns to the extraction section for reuse. This recycling method significantly improves the utilization rate of the extractant, reduces its consumption, lowers production costs, and also helps reduce environmental pollution, aligning with the development concept of green chemistry and enhancing the economic efficiency and environmental friendliness of the entire indium extraction unit. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 The attached figure is a longitudinal sectional view of the solder electrolyte indium treatment box provided by this utility model;

[0025] Figure 2 The attached figure is a cross-sectional view of the structure of the solder electrolyte indium treatment box provided by this utility model;

[0026] Figure 3 The attached figure is a top view of the solder electrolyte indium extraction device provided by this utility model;

[0027] Figure 4 The attached figure is a schematic diagram of the structure of the solder electrolyte indium extraction device provided by this utility model.

[0028] in:

[0029] 1-Agitator; 11-Mounting shaft; 2-Agitator chamber; 3-Mixing chamber; 4-Baffle; 5-Sedimentation chamber; 6-Discharge hole; 7-Extractant channel; 8-Box body; 9-Baffle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] See appendix Figure 1-2 This utility model discloses an indium treatment box for solder electrolyte, comprising: a box body 8, a mixing chamber and a sedimentation chamber 5, and a stirring component 1;

[0033] The housing 8 has an internal cavity for receiving the contents;

[0034] The receiving cavity is divided into a mixing chamber and a settling chamber 5 by a partition plate. A first through hole is provided on the surface of the partition plate to enable communication between the mixing chamber and the settling chamber 5.

[0035] The agitator 1 is located in the mixing chamber, and the mounting end of the agitator 1 is rotatably connected to the top wall of the housing 8.

[0036] In one specific embodiment, the partition plate is fixed to the inner wall of the box 8 along the length direction perpendicular to the box 8.

[0037] In one example, for better settling and clarification results, the length of the settling chamber should preferably exceed 2700mm.

[0038] To further optimize the above technical solution, the mixing chamber is divided into a mixing chamber 2 and a mixing chamber 3 by a partition 9, and a second through hole is provided on the partition 9 to connect the mixing chamber 2 and the mixing chamber 3. An inlet is provided on the side wall of the mixing chamber 3; the stirring component 1 is located in the inner cavity of the mixing chamber 2.

[0039] To further optimize the above technical solution, a baffle 4 is also included. The baffle 4 is located in the sedimentation chamber 5 near the partition plate, and its plate surface is perpendicular to the length direction of the box body 8. The upper end of the baffle 4 is fixed to the inner top wall of the box body 8, and the lower end of the baffle 4 has a reserved channel with the inner bottom wall of the box body 8.

[0040] In one embodiment, the distance between the baffle 4 and the partition plate is 100-140mm.

[0041] In a specific example, the distance between baffle 4 and the partition is 120mm.

[0042] To further optimize the above technical solution, the height of the channel is lower than the height of the second through hole and the bottom wall of the box 8.

[0043] To further optimize the above technical solution, the agitator 1 includes a mounting shaft 11 and impellers. One end of the mounting shaft 11 is fixed to the top plate of the housing 8, and the other end is located in the inner cavity of the mixing chamber 2. There are multiple impellers, which are installed at the other end of the mounting shaft 11.

[0044] Example 2:

[0045] See appendix Figure 3-4 This utility model discloses an indium extraction device for solder electrolyte, comprising: multiple indium treatment tanks for solder electrolyte and extractant channels 7 as in Embodiment 1, wherein the stirring and mixing chambers and precipitation chambers 5 of each adjacent treatment tank are close to each other, and the side walls of the adjacent tanks 8 are fixedly abutting each other in the length direction; the extractant channel 7 is located in the precipitation chamber 5 and is fixed to the inner side wall of the tank 8 to connect the adjacent tanks 8;

[0046] The multiple processing boxes are divided into four parts according to their functions: extraction section, back-extraction section, acid washing section, and water washing section.

[0047] In one specific embodiment, except for the last stage of the water washing chamber, all settling chambers are equipped with extractant channels, and each first-stage settling chamber has electrolyte, back-extraction liquid, acid washing liquid, and water washing liquid outflow holes at its bottom side.

[0048] To further optimize the above technical solution, a discharge hole 6 is provided on the bottom wall of the sedimentation chamber 5 of the extraction unit box 8.

[0049] To further optimize the above technical solution, a transparent observation plate is installed on the side of the extraction device to observe the separation position of the liquid phase and the extraction phase.

[0050] The method of use and working principle of this utility model are as follows:

[0051] The extraction section has four stages. The extractant enters from the inlet of the mixing chamber at the bottom of the first extraction stage, flows downstream to the fourth extraction stage, and then overflows to the back-extraction section. The solder electrolyte enters the mixing chamber at the bottom of the fourth extraction stage, flows back to the first extraction stage, exits from the bottom of the settling chamber, and enters the electrolysis system for electrolyte recovery. See the appendix for details. Figure 3 The flow direction of the extractant is from E to E1 and from A to A1 (the flow direction of the solder electrolyte).

[0052] The back-extraction section is three-stage. The extractant enters the back-extraction extractant channel from the extraction overflow port, flows into the first-stage back-extraction mixing chamber, flows downstream to the third-stage back-extraction, and then overflows to the acid washing section. The back-extraction solution enters the mixing chamber from the bottom of the third-stage extraction side, flows back to the first-stage back-extraction, and flows out from the bottom of the settling chamber side, entering the indium displacement process to achieve the purpose of indium recovery. See the appendix for details. Figure 3 From B to B1 (the flow direction of the back-extraction solution).

[0053] The pickling process is three-stage. The extractant enters the pickling extractant channel from the back-extraction overflow port, flows into the first-stage mixing chamber, flows downstream to the third stage, and then overflows into the water washing chamber. The pickling solution enters the mixing chamber from the bottom of the third-stage side, flows back to the first-stage side, and exits from the bottom of the settling chamber side, serving as the extractant. See the appendix for details. Figure 3 From C to C1 (the flow direction of the pickling solution).

[0054] The washing section is four-stage. The extractant enters the washing extractant channel from the acid washing overflow outlet, flows into the mixing chamber of the first stage of washing, flows downstream to the fourth stage, and then flows out from the middle of the settling chamber side of the fourth stage, serving as the extractant again, thus achieving the purpose of extractant reuse. The washing liquid enters the mixing chamber from the bottom of the fourth stage side, flows back to the first stage, and flows out from the bottom of the settling chamber side, entering the wastewater treatment station. See the appendix for details. Figure 3 From D to D1 (the flow direction of the washing solution).

[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solder electrolyte indium treatment box, characterized in that, include: The box (8) has a receiving cavity inside; The accommodating cavity is divided into the stirring and mixing chamber and the sedimentation chamber (5) by a partition plate. The partition plate has a first through hole to enable communication between the stirring and mixing chamber and the sedimentation chamber (5). A stirring component (1) is located in the mixing chamber, and the mounting end of the stirring component (1) is rotatably connected to the top wall of the housing (8).

2. The solder electrolyte indium treatment box according to claim 1, characterized in that, The mixing chamber is divided into a stirring chamber (2) and a mixing chamber (3) by a partition (9), and a second through hole is provided on the partition (9) to connect the stirring chamber (2) and the mixing chamber (3). An inlet is provided on the side wall of the mixing chamber (3); the stirring component (1) is located in the inner cavity of the stirring chamber (2).

3. The solder electrolyte indium treatment box according to claim 2, characterized in that, It also includes a baffle (4), which is located in the sedimentation chamber (5) near the partition plate, and its surface is perpendicular to the length direction of the box (8). The upper end of the baffle (4) is fixed to the inner top wall of the box (8), and the lower end of the baffle (4) has a reserved channel with the inner bottom wall of the box (8).

4. The solder electrolyte indium treatment box according to claim 3, characterized in that, The height of the channel is lower than the height of the second through hole and the inner bottom wall of the box (8).

5. The solder electrolyte indium treatment box according to claim 4, characterized in that, The stirring component (1) includes a mounting shaft (11) and impellers. One end of the mounting shaft (11) is fixed to the top plate of the housing (8), and the other end is located in the inner cavity of the stirring chamber (2). There are multiple impellers, which are installed at the other end of the mounting shaft (11).

6. An indium extraction device for solder electrolyte, characterized in that, The device includes a solder electrolyte indium treatment tank and an extractant channel (7) as described in any one of claims 1-5, wherein the stirring and mixing chamber and the precipitation chamber (5) of each adjacent treatment tank are close to each other, and the side walls of the adjacent tank bodies (8) are fixedly abutting each other in the longitudinal direction; the extractant channel (7) is located in the precipitation chamber (5) and is fixed to the inner side wall of the tank body (8) to communicate with the adjacent tank bodies (8); The multiple processing boxes are divided into four parts according to their functions: extraction section, back-extraction section, acid washing section, and water washing section.

7. The indium extraction apparatus for solder electrolyte according to claim 6, characterized in that, The bottom wall of the sedimentation chamber (5) of the extraction unit is provided with a discharge hole (6).

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