Electrodeposit recovery method, electrodeposit recovery jig, and electrodeposit recovery device

Abstract

To provide a method of recovering electrodeposits, in which an unexpected interruption of the work of recovering electrodeposits hardly occurs.SOLUTION: In a gap interposed between a first concave-convex unit 10 constituted of a plurality of concave portions and a plurality of convex portions alternately arranged in the width direction of the electrode plate 1 and a second concave-convex unit 11 constituted of a plurality of concave portions different from the plurality of concave portions described above, and a plurality of convex portions different from the plurality of convex portions described above, which are alternately arranged in the width direction of the electrode plate 1 and are shifted by a half pitch relative to the first concave-convex unit 10, the electrode plate 1 of a thickness insertable to the gap is arranged, and the electrode plate 1 with electrodeposits 2 sticking to the surface thereof is made to pass through the gap from below to above, to scrape off and recover the electrodeposits 2 from the surface of the electrode plate 1.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a method for recovering a slime-like electrodeposit adhering to an electrode plate, and a jig and an apparatus used for recovering the electrodeposit.

Background Art

[0002] As a method for smelting copper, a method of melting copper concentrate to produce an anode (smelting process) and producing electrolytic copper from the obtained anode by electrolytic refining (electrolytic refining process) is generally known. Since this method enables mass production and has low costs, it is suitable for treating general sulfide ores and has become the mainstream of copper smelting.

[0003] Each process will be described in more detail. First, in the smelting process, copper concentrate is melted in an autogenous furnace to form matte, the obtained matte is oxidized in a converter to form blister copper, the obtained blister copper is refined in a refining furnace to obtain refined blister copper with a purity of about 99%, and this refined blister copper is poured into a mold to cast an anode (positive electrode plate) for copper electrolytic refining.

[0004] In the subsequent electrolytic refining process, a plurality of anodes and a plurality of separately prepared cathodes (negative electrode plates) are alternately arranged at regular intervals in an electrolytic cell holding a copper electrolyte, and these anodes and cathodes are energized. As a result, copper ions elute from the anode into the electrolyte, and these copper ions are electrodeposited on the cathode, and electrolytic copper with a copper grade of 99.99% or more is obtained on the cathode.

[0005] In the electrolytic refining process, when copper elutes from the anode into the electrolyte as copper ions, impurities such as arsenic, bismuth, antimony, and nickel contained in the anode also elute into the electrolyte. Only copper ions from the electrolyte are electrodeposited on the cathode, and high-purity electrolytic copper is obtained, but the impurities remain in the electrolyte. As a result, the impurity concentration of the electrolyte increases.

[0006] When the impurity concentration of the electrolyte increases as the electrolytic refining progresses, impurities precipitate together with copper, reducing the copper grade of the electrolytic copper, causing scale formation in the electrolyte piping and inhibiting operation, and at high concentrations, passivation is likely to occur on the electrode surface, resulting in problems such as increased power costs.

[0007] Therefore, a part of the electrolyte is sent to the purification process, impurities are removed, and then it is supplied to the electrolytic cell again. In the purification process, the electrolyte is vacuum-evaporated and concentrated, and then rapidly cooled to precipitate and remove supersaturated copper as crude copper sulfate in the concentration and cooling process. Next, in the de-copper electrolysis process (de-arsenic electrolysis process), residual copper, arsenic, bismuth, antimony, etc. are removed from the crude mother liquor, which is the filtrate after recovering the crude copper sulfate. Further, in the de-nickel process, nickel is separated and recovered as crude nickel sulfate from the de-copper final solution, which is the nickel-containing solution after de-copper.

[0008] In the de-copper electrolysis process, an electric current is passed between a lead-insoluble anode immersed in the liquid to be treated (crude mother liquor) and a copper cathode to precipitate copper, arsenic, bismuth, antimony, etc. remaining in the liquid to be treated on the surface of the cathode. When the electrodeposit (cathode slime) adhering to the surface of the cathode reaches a certain thickness, the power supply is stopped, the cathode is lifted out of the treatment tank, and the electrodeposit is removed from the surface of the cathode.

[0009] The operation of removing the electrodeposit from the surface of the cathode can be carried out by suspending the cathode with a crane or the like and hitting the side of the cathode with a striking tool such as a hammer by an operator to cause the electrodeposit to fall off.

[0010] When removing the electrodeposit from the surface of the cathode, the operator must wear protective gear such as safety glasses and dust masks for safety and hygiene management, which places a heavy burden on the operator. Also, when tapping the side of the cathode with the electrodeposit attached, part of the electrodeposit may scatter and float, deteriorating the visibility. When the visibility deteriorates, it is necessary to temporarily interrupt the operation, which is a factor reducing the recovery efficiency of the electrodeposit per unit time. Further, after tapping one side of the cathode, when tapping the opposite side, it is necessary to move around to the opposite side of the cathode, resulting in poor workability.

[0011] Japanese Utility Model Publication No. 59-19728 discloses a cathode slime scraping device that scrapes off and recovers the electrodeposit by lowering a cathode with the electrodeposit attached between two cylindrical shafts having scraping teeth of the same shape. When using the device described in Japanese Utility Model Publication No. 59-19728, manual work by the operator can be eliminated or significantly simplified, and the recovery efficiency of the electrodeposit can be improved.

Prior Art Documents

Patent Documents

[0012]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0013] However, with the apparatus described in Japanese Utility Model Publication No. 59-19728, problems such as the electrodeposited material scattering to the same extent as manual work and the electrodeposited material biting into and sticking to the connection part between the cylindrical shaft and the motor may occur. When such problems occur, a difference in rotational speed may occur between the two cylindrical shafts arranged on both sides in the plate thickness direction of the cathode, causing the cathode to deform and curve, such as winding around the cylindrical shaft, resulting in an obstacle to the feeding of the cathode. Then, the recovery operation of the electrodeposited material is interrupted, and work is required to remove the deformed cathode, which may reduce the work efficiency.

[0014] An object of the present disclosure is to provide a method for recovering an electrodeposited material, a jig for recovering an electrodeposited material that can be used in the method, and an electrodeposited material recovery apparatus including the jig for recovering an electrodeposited material, in which an unexpected interruption of the recovery operation of the electrodeposited material is less likely to occur.

Means for Solving the Problems

[0015] The method for recovering an electrodeposited material according to one aspect of the present disclosure is for recovering an electrodeposited material from the surface of an electrode plate. A first concavo-convex portion formed by alternately arranging a plurality of concave portions and a plurality of convex portions along the width direction of the electrode plate, and a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions are alternately arranged with respect to the width direction of the electrode plate and shifted by a half pitch with respect to the first concavo-convex portion. An electrode plate having a thickness that fits into the gap is arranged in the gap sandwiched between the second concavo-convex portions. The electrode plate with the electrodeposited material adhering to the surface is passed through the gap from below to above the first concavo-convex portion or the second concavo-convex portion, thereby scraping off and recovering the electrodeposited material from the surface of the electrode plate.

[0016] The jig for recovering an electrodeposited material according to one aspect of the present disclosure has a first uneven portion in which a plurality of concave portions and a plurality of convex portions are alternately arranged in the longitudinal direction, and a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions are alternately arranged in the longitudinal direction and shifted by a half pitch with respect to the first uneven portion. It has a second uneven portion arranged, The first uneven portion is arranged at one end in the short side direction, and the second uneven portion is arranged at the other end in the short side direction.

[0017] The jig for recovering an electrodeposited material according to one aspect of the present disclosure can be integrally configured as a whole, or can be configured by combining a first member having the first uneven portion and a second member having the second uneven portion.

[0018] An electrodeposited material recovery device according to one aspect of the present disclosure, A plurality of jigs for recovering an electrodeposited material, With the longitudinal direction of the plurality of jigs for recovering an electrodeposited material being horizontal, in a state of being separated in a horizontal first direction orthogonal to the longitudinal direction, at both ends in the longitudinal direction of the plurality of jigs for recovering an electrodeposited material, respectively, A support portion that supports the plurality of jigs for recovering an electrodeposited material so that a state of being rotatable and a state of being non-rotatable can be switched with the longitudinal direction as a rotation axis, Among the plurality of jigs for recovering an electrodeposited material, a displacement mechanism that moves an electrode plate having an electrodeposited material attached to its surface from below to above between two adjacent jigs for recovering an electrodeposited material in the first direction, Is provided.

[0019] In particular, in the electrodeposited material recovery device according to one aspect of the present disclosure, the jig for recovering an electrodeposited material is constituted by the jig for recovering an electrodeposited material according to one aspect of the present disclosure.

Effects of the Invention

[0020] According to the method for recovering an electrodeposited material according to one aspect of the present disclosure, it is possible to make it difficult for an unexpected interruption to occur in the operation of recovering the electrodeposited material.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

DETAILED DESCRIPTION OF THE INVENTION

[0022] In the electrodeposit recovery method according to an embodiment of the present disclosure, in order to recover the electrodeposit from the surface of the electrode plate, a first concavo-convex portion formed by alternately arranging a plurality of concave portions and a plurality of convex portions along the width direction of the electrode, and a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions are alternately arranged in the width direction of the electrode plate and shifted by a half pitch with respect to the first concavo-convex portion. The electrode plate having a thickness that fits in the gap is disposed in the gap formed between the second concavo-convex portions, and the electrode plate having the electrodeposit attached to the surface is passed through the gap from below to above the first concavo-convex portion or the second concavo-convex portion, thereby scraping off and recovering the electrodeposit from the surface of the electrode plate.

[0023] On the surface of the cathode 1 applied to the electrodeposit recovery method according to an embodiment of the present disclosure, a slime-like electrodeposit 2 containing copper, arsenic, bismuth, antimony, etc. deposited in the copper stripping electrolysis process is attached.

[0024] The cathode 1 includes a rectangular flat plate-shaped plate material 3, loop-shaped ribbons 4 attached to a plurality of locations on the upper part of the plate material 3, and a cathode beam 5 through which the ribbons 4 are inserted. The plate material 3 has a height of about 1050 mm, a width of about 1070 mm, and a thickness of about 0.5 mm to 1.0 mm. The plate material 3, the ribbons 4, and the cathode beam 5 can be made of, for example, electrolytic copper. However, the cathode beam 5 can also be composed of an iron core bar and a coating layer made of copper covering the surface of the core bar. Alternatively, the present disclosure is also applicable to cathodes made of metal alloys such as steel or stainless steel.

[0025] The electrodeposit 2 attached to the surface of the cathode 1 has a thickness of about 10 mm to 50 mm. Therefore, the weight of the electrodeposit 2 attached to each cathode 1 is about 20 kg to 60 kg. The viscosity of the electrodeposit 2 increases as the copper content increases.

[0026] The method for recovering the electrodeposit according to an embodiment of the present disclosure is carried out, for example, using an electrodeposit recovery device 6 as shown in FIG. 1.

[0027] The electrodeposit recovery device 6 includes a plurality of electrodeposit recovery jigs 7, a support portion 8, and a displacement mechanism 9.

[0028] In this example, the plurality of electrodeposit recovery devices 6 include three electrodeposit recovery jigs 7. That is, the electrodeposit recovery device 6 of this example is configured to be able to process two cathodes 1 simultaneously.

[0029] Each of the electrodeposit recovery jigs 7 is generally configured in a substantially rectangular plate shape as a whole by an iron-based hard metal material, as shown in FIGS. 2(A) and 2(B).

[0030] Each of the electroplated material recovery jigs 7 has a first uneven portion 10 formed by alternately arranging a plurality of concave portions and a plurality of convex portions in the longitudinal direction (the left - right direction in FIGS. 2(A) and 2(B)) at one end in the short - hand direction (the upper side in FIG. 2(A)). And at the other end in the short - hand direction (the lower side in FIG. 2(A)), it has a second uneven portion 11 formed by alternately arranging a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions in the longitudinal direction and shifted by a half - pitch with respect to the first uneven portion 10.

[0031] In other words, the first uneven portion 10 is provided by forming concave portions having a rectangular opening shape when viewed from the thickness direction (the front - back direction in FIG. 2(A), the up - down direction in FIG. 2(B)) at a plurality of equally - spaced positions in the longitudinal direction at one end in the short - hand direction of the electroplated material recovery jig 7. Also, the second uneven portion 11 is provided by forming concave portions having a rectangular opening shape when viewed from the thickness direction at a plurality of equally - spaced positions in the longitudinal direction of the other end in the short - hand direction of the electroplated material recovery jig 7, where the longitudinal positions coincide with the convex portions of the first uneven portion 10 (deviate from the concave portions of the first uneven portion 10).

[0032] In this example, each of the electroplated material recovery jigs 7 has columnar supported portions 12 at both ends in the longitudinal direction.

[0033] Each of the electroplated material recovery jigs 7 is composed of a metal material such as carbon steel. Among the electroplated material recovery jigs 7, the longitudinal dimension L of the portion where the first uneven portion 10 and the second uneven portion 11 are provided 7 is larger than or about the same as the width of the plate material 3 of the cathode 1. The longitudinal dimension L 7 is not limited to this, but can be 1200 mm to 1300 mm. The width dimension (short - hand direction dimension) W of each of the electroplated material recovery jigs 7 7 and the thickness T 7 are not particularly limited as long as the strength and rigidity can be ensured. For example, the width dimension W 7 can be 30 mm to 100 mm, and the thickness T 7 can be 20 mm to 40 mm.

[0034] The opening width w and the depth d of each of the concave portions of the first uneven portion 10 and the second uneven portion 11 are not particularly limited as long as the electrodeposit 2 attached to the surface of the cathode 1 can be scraped off. For example, the opening width w can be 30 mm to 60 mm, and the depth d can be 10 mm to 20 mm. That is, one pitch (= 2w) of the first uneven portion 10 and the second uneven portion 11 can be 60 mm to 120 mm.

[0035] In this example, the electrodeposit recovery jig 7 is integrally formed as a whole. However, when implementing the present disclosure, the electrodeposit recovery jig can also be configured by combining a plurality of members. For example, the electrodeposit recovery jig can be configured by combining a first member having a first uneven portion and a second member having a second uneven portion.

[0036] The support portion 8 horizontally positions the longitudinal direction of each electrodeposit recovery jig 7 and supports each electrodeposit recovery jig 7 in a state of being separated in a horizontal first direction (the left - right direction in FIG. 1) orthogonal to the longitudinal direction of the electrodeposit recovery jig 7, such that both ends in the longitudinal direction of each electrodeposit recovery jig 7 can be switched between a rotatable state and a non - rotatable state with the longitudinal direction of the electrodeposit recovery jig 7 as the rotation axis C.

[0037] Specifically, the support portion 8 includes two support jigs 13 arranged at intervals in the longitudinal direction of the electrodeposit recovery jig 7. The three electrodeposit recovery jigs 7 support each of the supported portions 12 such that they can be switched between a rotatable state and a non - rotatable state with respect to the two support jigs 13. Thereby, each of the electrodeposit recovery jigs 7 can be switched between a state where the short - hand direction of the electrodeposit recovery jig 7 is directed in the first direction and a state where the thickness direction of the electrodeposit recovery jig 7 is directed in the first direction by rotating about the rotation axis C.

[0038] The distance between the respective electrodeposit recovery jigs 7 is not limited to this, but in a state where the short side direction of each electrodeposit recovery jig 7 is directed in the first direction, the distance A between the tip surfaces of the convex portions of the first uneven portion 10 and the tip surfaces of the convex portions of the second uneven portion 11 facing each other can be about 40 mm to 54 mm larger than the thickness of the plate material 3 of the cathode 1.

[0039] The displacement mechanism 9 moves the cathode 1 with the electrodeposit 2 attached to its surface upward from below between two adjacent electrodeposit recovery jigs 7 in the first direction.

[0040] Specifically, the displacement mechanism 9 is constituted by a crane 14 having a plurality of hooks. The crane 14 is configured to lift the cathode beam 5 of the cathode 1 and enable the cathode 1 to move in the horizontal and vertical directions.

[0041] The speed at which the cathode 1 is lifted by the displacement mechanism 9 is not limited to this, but for example, it can be 0.1 m / s or more and 0.6 m / s or less, and preferably 0.2 m / s or more and 0.4 m / s or less.

[0042] A procedure for recovering the electrodeposit 2 attached to the surface of the cathode 1 using the electrodeposit recovery device 6 of this example will be described.

[0043] First, the three electrodeposit recovery jigs 7 are placed in a state where their respective thickness directions are directed in the first direction, and the rotation about the rotation axis C of each electrodeposit recovery jig 7 is locked.

[0044] Next, one (or a plurality of) cathodes 1 with the electrodeposit 2 attached to their respective surfaces are lifted by the crane 14 and inserted from above into the portion between two adjacent (the number of cathodes 1 + 1) electrodeposit recovery jigs 7 in the first direction, and lowered until the height position of the upper end portion of the plate material 3 coincides with the height position of the electrodeposit recovery jig 7.

[0045] Next, rotate each electrodeposit recovery jig 7 about the rotation axis C so that each short side direction faces the first direction. Specifically, among the two electrodeposit recovery jigs 7 adjacent to each other in the first direction, the first uneven portion 10 of one electrodeposit recovery jig 7 and the second uneven portion 11 of the other electrodeposit recovery jig 7 face each other in the first direction. In this state, lock the rotation about the rotation axis C of each electrodeposit recovery jig 7.

[0046] Next, lift the two cathodes 1 upward by the crane 14, and pass the cathodes 1 through the gap sandwiched between the first uneven portion 10 of one electrodeposit recovery jig 7 and the second uneven portion 11 of the other electrodeposit recovery jig 7 from below to above the first uneven portion 10 or the second uneven portion 11, thereby scraping off the electrodeposit 2 from the surface of the cathodes 1.

[0047] Since the plate material 3 of the cathode 1 is relatively thin, it is pressed by the convex portions of the first uneven portion 10 and the convex portions of the second uneven portion 11 through the electrodeposit 2, and is deformed in a wavy manner as shown in FIG. 3. On the other hand, although the electrodeposit 2 has a certain degree of viscosity, it is relatively thick, so when passing through the gap sandwiched between the first uneven portion 10 and the second uneven portion 11, it cannot sufficiently follow the deformation of the plate material 3. For this reason, a gap is likely to occur in the portion between the surface of the cathode 1 and the electrodeposit 2, and the electrodeposit 2 falls off so as to be peeled off from the surface of the cathode 1. In particular, when the electrodeposit recovery jig 7 is arranged so as to bite into the electrodeposit 2 when viewed from above, the electrodeposit 2 is difficult to move horizontally, and the electrodeposit 2 is composed of copper, arsenic, bismuth, antimony, etc. Since it does not have a hardness sufficient to deform the hard metal material constituting the electrodeposit recovery jig 7, the electrodeposit 2 moves vertically downward. For this reason, even when the copper content of the electrodeposit 2 is 60% by mass or more and the viscosity is relatively high, the electrodeposit 2 can be surely scraped off from the surface of the cathode 1. Therefore, according to the electrodeposit recovery method of this example, when scraping off the electrodeposit 2 from the surface of the cathode 1, it is possible to prevent problems such as the cathode 1 being deformed so as to bend and being wound around the electrodeposit recovery jig 7. That is, it is possible to prevent the electrodeposit recovery operation from being unexpectedly interrupted, and the work efficiency can be improved.

[0048] In addition, the electrodeposit recovery jig of the present disclosure is preferably used when recovering a material softer than the hard metal material constituting the electrodeposit recovery jig, such as copper, arsenic, bismuth, and antimony, as the electrodeposit, from the viewpoint of preventing excessive force from being applied to the electrodeposit recovery jig, the electrode plate (cathode), the displacement mechanism (crane), etc. When it is considered that the thickness of the electrodeposit is large and the strength is high, by using a ribbon of the cathode that is narrower than the plate material or caulking and fixing the ribbon to the plate material, it is desirable to restrict the force applied to the electrodeposit recovery jig, the electrode plate (cathode), the displacement mechanism (crane), etc. within the range of the bonding strength of the ribbon.

[0049] The cathode 1 from which the electrodeposit 2 has been scraped off is recovered and repeatedly sent to the smelting process or the copper removal electrolysis process. If the copper grade of the electrodeposit 2 is high, it is repeatedly sent to the smelting process; if the grade of elements other than copper is high, it is appropriately discharged.

Example

[0050] Hereinafter, the experiments conducted to confirm the effects of the present disclosure will be described.

[0051] As the cathode plate material, a copper plate with a height of about 1050 mm, a width of about 1070 mm, and a thickness of about 0.7 mm was used.

[0052] From the copper electrolytic solution, it was sent to the washing process, vacuum-evaporated and concentrated, and rapidly cooled to precipitate copper in a supersaturated state as crude copper sulfate and removed. A copper cathode and a lead insoluble anode were immersed in the treated liquid (crude mother liquor) and energized to precipitate copper, arsenic, bismuth, antimony, etc. remaining in the treated liquid on the surface of the cathode.

[0053] Specifically, 25 cathodes were inserted into the electrolytic cell so as to be sandwiched between 26 anodes, and energized at a current of 13.9 kA for 159 hours. The concentration of copper in the treated liquid was about 0.5 mol / L. An electrodeposit with a thickness of about 40 mm was deposited on the cathode plate material.

[0054] [Example] Using an electrodeposit recovery device 6 equipped with 3 electrodeposit recovery jigs 7, 2 cathodes 1 were processed simultaneously to recover the electrodeposit 2. Each electrodeposit recovery jig 7 has a longitudinal dimension L 7 of 1210 mm, a width dimension W 7 of 95 mm, a thickness T 7 of 20 mm, and the opening width w of each concave portion of the first uneven portion 10 and the second uneven portion 11 is 30 mm, and the depth d is 20 mm. The pulling-up speed of the cathode was 0.6 m / s.

[0055] The amount of the electroplated deposit shaved off (recovery amount) was 8,070 kg / h, and the throughput of the cathode was 200 sheets / h. Also, a total of 200 cathodes were processed, and for all the cathodes, no significant deformation such as winding around the jig 7 for electroplated deposit recovery occurred. That is, the recovery operation of the electroplated deposit could be completed without causing an unexpected interruption.

[0056] [Comparative Example] The recovery amount of the electroplated deposit shaved off by manually hitting was 6,052 kg / h, and the throughput of the cathode was 150 sheets / h.

Explanation of Reference Signs

[0057] 1 Cathode 2 Electroplated deposit 3 Plate material 4 Ribbon 5 Cathode beam 6 Electroplated deposit recovery device 7 Jig for electroplated deposit recovery 8 Support part 9 Displacement mechanism 10 First uneven part 11 Second uneven part 12 Supported part 13 Support jig 14 Crane

Claims

1. A method for recovering an electrodeposit from the surface of an electrode plate, comprising: placing an electrode plate having a thickness that fits within the gap between a first uneven portion formed by alternately arranging a plurality of concave portions and a plurality of convex portions along the width direction of the electrode plate, and a second uneven portion formed by alternately arranging a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions along the width direction of the electrode plate with a half pitch shift relative to the first uneven portion; scraping off and recovering the electrodeposit from the surface of the electrode plate by passing the electrode plate with the electrodeposit adhering to the surface upward through the gap from below the first uneven portion or the second uneven portion. A method for recovering an electrodeposit.

2. An electrodeposit recovery jig having a first uneven portion formed by alternately arranging a plurality of concave portions and a plurality of convex portions in the longitudinal direction, and a second uneven portion formed by alternately arranging a plurality of concave portions different from the plurality of concave portions and a plurality of convex portions different from the plurality of convex portions in the longitudinal direction with a half pitch shift relative to the first uneven portion; wherein the first uneven portion is disposed at one end in the short direction, and the second uneven portion is disposed at the other end in the short direction.

3. a plurality of electrodeposit recovery jigs; a support portion that supports the plurality of electrodeposit recovery jigs such that the longitudinal directions of the plurality of electrodeposit recovery jigs are horizontal, and that can switch between a rotatable state and a non-rotatable state about the longitudinal direction at both ends of the longitudinal direction of the plurality of electrodeposit recovery jigs in a state of being separated in a horizontal first direction orthogonal to the longitudinal direction; a displacement mechanism that moves an electrode plate with an electrodeposit adhering to the surface upward from below between two adjacent electrodeposit recovery jigs in the first direction among the plurality of electrodeposit recovery jigs; and each of the plurality of electrodeposit recovery jigs is constituted by the electrodeposit recovery jig according to Claim 2. An electrodeposit recovery apparatus.

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