CN103874787A - Method for recovering valuable metal from liquid containing valuable metal, and electrolytic recovery device - Google Patents
Method for recovering valuable metal from liquid containing valuable metal, and electrolytic recovery device Download PDFInfo
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- CN103874787A CN103874787A CN201280049316.9A CN201280049316A CN103874787A CN 103874787 A CN103874787 A CN 103874787A CN 201280049316 A CN201280049316 A CN 201280049316A CN 103874787 A CN103874787 A CN 103874787A
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- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
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Abstract
Provided is a method for recovering valuable metal from a liquid containing a valuable metal by, in an electrolysis tank that has a positive electrode and a cylindrical negative electrode and that holds the liquid containing the valuable metal, performing electrolytic recovery while rotating the cylindrical negative electrode, precipitating the valuable metal at the cylindrical negative electrode.
Description
Technical field
The present invention relates to a kind of recovery method and electrolytic recovery device that reclaims valuable metal from the liquid that contains valuable metal.
Background technology
In the past,, be known to for example add the oxygenants such as hypochlorous acid and cyanogen decomposition method that cyanogen is decomposed containing the treatment process of cyanogen liquid as plating solution, coating stripping liquid etc.Containing in cyanogen liquid, conventionally contain the valuable metals such as Au, Ag, Cu, platinum, rare metal at this, therefore, add the reductive agents such as such as sodium borohydride (SBH), formalin and make valuable metal be powdery to separate out, and reclaim by solid-liquid separation.In addition, not containing in the plating solution of stripper, utilize electrolytic process to reclaim valuable metal.But, in this electrolytic process, be difficult to control the addition of oxygenant and become batch processing, therefore, the addition that makes oxygenant is superfluous and cause cost to rise.In addition, exist the rate of recovery of valuable metal to produce deviation and cause unstable such problem.
On the other hand, the plating solution that contains stripper is difficult to utilize electrolytic process to be processed, but utilizes cyanogen decomposition method to process.Its reason is, in electrolytic process, need to make the current density of anode higher, but when the current density of anode is made as to 200A/m
2when above, can cause stainless steel (SUS) the material stripping as anode material.Therefore, from the plating solution that contains stripper, reclaim in the recovery method of valuable metal, the operation that need to decompose cyanogen, this can spend labour and time and cause cost to rise.
So, expect exploitation a kind of with low cost and efficiently from plating solution, coating stripping liquid etc. containing the method that reclaims the valuable metals such as gold cyanogen liquid.
Therefore, the application's applicant had proposed a kind of retrieving arrangement 10 as shown in Figure 1 in the past, in this retrieving arrangement 10, the anode being made up of insoluble material 5 and discoid negative electrode 6 are disposed in electrolyzer 3, this electrolyzer 3 be accommodated with contain valuable metal interior containing cyanogen liquid, utilize rotation electric motor 7 to make the rotating speed rotation of discoid negative electrode 6 with regulation on one side, carry out electrolysis on one side, thereby make valuable metal on discoid negative electrode 6, separate out (with reference to patent documentation 1).In Fig. 1, Reference numeral 4 is rectifiers.Adopt this motion, can reclaim valuable metal from being difficult to carry out containing cyanogen liquid of electrolysis treatment, and can in the situation that not adding chemical reagent, cyanogen self be decomposed, thereby seek to improve the rate of recovery of valuable metal and reduce processing cost.
But, in this motion, there are the following problems: because the current density of discoid negative electrode is higher, therefore, valuable metal is easily powdery separates out, and, because the rotating speed of discoid negative electrode is larger, therefore, the valuable metal after being powdery and separating out easily comes off from discoid negative electrode, thereby the rate of recovery of valuable metal is reduced.
Thereby, current, expect to provide the recovery method and the electrolytic recovery device that liquid from containing valuable metal, reclaim valuable metal, the recovery method of this valuable metal and electrolytic recovery device can low costs and from the liquid that contains valuable metal, are reclaimed efficiently the valuable metals such as golden with the higher rate of recovery.
Patent documentation 1: TOHKEMY 2006-70364 communique
Summary of the invention
the problem that invention will solve
The present invention is to realize following object as problem.; the object of the invention is to; a kind of recovery method and electrolytic recovery device that reclaims valuable metal from the liquid that contains valuable metal is provided, and the recovery method of this valuable metal and electrolytic recovery device can low costs and from the liquid that contains valuable metal, are reclaimed efficiently the valuable metals such as gold with the higher rate of recovery.
for the scheme of dealing with problems
The technical scheme addressing the above problem is as follows.,
(1) a kind of recovery method that reclaims valuable metal from the liquid that contains valuable metal, it is characterized in that, thering is anode and negative electrode cylindraceous and be accommodated with in the electrolyzer of the liquid that contains valuable metal, make above-mentioned cathode rotary cylindraceous while carry out electrolytic recovery, thereby valuable metal is separated out on above-mentioned cathode surface cylindraceous.
Reclaiming from the liquid that contains valuable metal in the recovery method of valuable metal this (1) Suo Shu, thering is anode and the negative electrode cylindraceous being formed by insoluble material and be accommodated with in the electrolyzer of the liquid that contains valuable metal, make above-mentioned cathode rotary cylindraceous while carry out the electrolytic recovery such as Electrowinning, can make thus valuable metal separate out efficiently on above-mentioned cathode surface cylindraceous, thus can low cost and from the liquid that contains valuable metal, reclaim efficiently the valuable metals such as gold with the higher rate of recovery.
(2) according to the recovery method that reclaims valuable metal from the liquid that contains valuable metal above-mentioned (1) Suo Shu, wherein, valuable metal is gold, and the liquid that contains valuable metal is to contain golden cyanogen solution.
(3) according to the recovery method that reclaims valuable metal from the liquid that contains valuable metal above-mentioned (1) or (2) Suo Shu, wherein, the rotating speed of negative electrode cylindraceous is 50rpm～100rpm.
(4) electrolytic recovery device, it is for the liquid electrolytic recovery valuable metal from containing valuable metal, and this electrolytic recovery device is characterised in that, comprising:
The negative electrode of tubular; And
Drive element, this drive element is for making the cathode rotary of above-mentioned tubular;
On all side wall surfaces of the negative electrode of above-mentioned tubular in sense of rotation, there are many through holes.
In the electrolytic recovery device these (4) Suo Shu, comprise the negative electrode of tubular and for making the drive element of cathode rotary of above-mentioned tubular.On all side wall surfaces of the negative electrode of above-mentioned tubular in sense of rotation, there are many through holes.Above-mentioned electrolytic recovery device makes the cathode rotary of above-mentioned tubular on one side by the work of above-mentioned drive element, carry out the electrolytic recovery such as Electrowinning on one side, thereby valuable metal is separated out on the cathode surface of above-mentioned tubular, thus can low cost and from the liquid that contains valuable metal, reclaim efficiently the valuable metals such as gold with the higher rate of recovery.
(5), according to the electrolytic recovery device above-mentioned (4) Suo Shu, wherein, the negative electrode of tubular is cylindric and on the circumferential direction of all side wall surfaces, has many through holes.
the effect of invention
Adopt the present invention, can solve above-mentioned problems in the past, realize above-mentioned purpose, and a kind of recovery method and electrolytic recovery device that reclaims valuable metal from the liquid that contains valuable metal can be provided, and the recovery method of this valuable metal and electrolytic recovery device can low costs and from the liquid that contains valuable metal, are reclaimed efficiently the valuable metals such as gold with the higher rate of recovery.
Accompanying drawing explanation
Fig. 1 is the schematic diagram representing as an example of the Electrowinning device of electrolytic recovery device in the past.
Fig. 2 is the schematic diagram representing as an example of the Electrowinning device of electrolytic recovery device of the present invention.
Fig. 3 A is the photo that represents an example of negative electrode cylindraceous.
Fig. 3 B is the enlarged view of the A part in Fig. 3 A.
Fig. 4 is the chart of the relation between the gold concentration in the liquid that represents the electrolysis time in embodiment 1 and comparative example 1 and contain valuable metal.
Embodiment
(from the liquid that contains valuable metal, reclaiming recovery method and the electrolytic recovery device of valuable metal)
The invention provides a kind of recovery method that reclaims valuable metal from the liquid that contains valuable metal, it is characterized in that, thering is anode and as the negative electrode cylindraceous of the negative electrode of tubular and be accommodated with in the electrolyzer of the liquid that contains valuable metal, make above-mentioned cathode rotary cylindraceous while carry out the electrolytic recovery such as Electrowinning, valuable metal is separated out on above-mentioned cathode surface cylindraceous.
Electrolytic recovery device of the present invention comprises the negative electrode of drive element and tubular, and comprises electrolyzer, anode and as required and other members that arrange.
Below, describe the recovery method and the electrolytic recovery device that from the liquid that contains valuable metal, reclaim valuable metal in detail.
electrolyzer
As above-mentioned electrolyzer, as long as it has the negative electrode of anode and tubular, be accommodated with the liquid that contains valuable metal and can carry out by the electrolysis such as Electrowinning, electrolytic refining, metal being separated out and by the electrolytic recovery of its recovery, its size, shape, structure and material etc. are all not particularly limited, and can suitably select according to object.
As the material of above-mentioned electrolyzer, for example, can list stainless steel, aluminium and iron etc.As shape and the size (capacity) of above-mentioned electrolyzer, be not particularly limited, can suitably select according to object, be preferably the such shape conventionally using.
Preferably, be configured on the short transverse top of above-mentioned electrolyzer and be provided with relief outlet, carry the liquid that contains valuable metal overflowing from electrolyzer via path to circulation groove.
Between above-mentioned circulation groove and above-mentioned electrolyzer, got up by Path Connection, be provided with recycle pump and valve midway in path.Short transverse bottom at electrolyzer is provided with the supplying opening for supplying with the aqueous solution, and this supplying opening is connected with path.Preferably, be configured to by making pump work, and can supply with the liquid that contains valuable metal in circulation groove to electrolyzer, the liquid that makes to contain valuable metal in electrolyzer from below move upward.
the liquid that contains valuable metal
As the above-mentioned liquid that contains valuable metal, be not particularly limited, can be according to object and suitably select, for example, the plating solution that can list waste plating solution, contain valuable metal and cyanogen, the coating stripping liquid that contains valuable metal and cyanogen and plating product are cleaned and the liquid that obtains etc.
As above-mentioned valuable metal, for example, can list gold (Au), silver (Ag), copper (Cu), nickel (Ni) and platinum family element etc.In above-mentioned element, be particularly preferably gold.
The concentration of the valuable metal in the liquid that contains above-mentioned valuable metal is not particularly limited, and can suitably select according to object, but be preferably 10mg/L～100g/L.
the negative electrode of tubular
For size, structure and the material etc. of the negative electrode of above-mentioned tubular, can suitably select according to the kind of electrolytic solution, the metal that will reclaim.As the material of the negative electrode of above-mentioned tubular, for example, can enumerate tap a blast furnace, the alloy of nickel, copper, chromium, stainless steel, aluminium, titanium or above-mentioned metal etc.
In order to keep the stable of electrolysis state, the negative electrode of above-mentioned tubular most preferably is cylindric.In addition, can be also when static, to be tubular and the negative electrode that becomes when rotated tubular cylindraceous.
All side wall surfaces of the negative electrode of preferred above-mentioned tubular have porous portion, and this porous portion has many through holes.Above-mentioned many through holes are not particularly limited, can be according to objects and suitably select, for example, can list the through hole that formed by wire netting (expanded metal), reticulation, punch metal etc.Above-mentioned through hole if all side wall surfaces with along sense of rotation around mode configure.
For the port area (aperture opening ratio of through hole) of the many through holes on all side wall surfaces of the negative electrode of above-mentioned tubular, discharge efficiently the viewpoint of the liquid that contains valuable metal from the through hole of all side wall surfaces of the negative electrode via above-mentioned tubular and consider, the port area of the through hole of preferred heights direction bottom is greater than the port area of the through hole on short transverse top.Herein, above-mentioned short transverse top refers to, 70%～100% of height part in the time that the height of the negative electrode of tubular is made as to 100%, and above-mentioned short transverse bottom refers to, 0%～30% of height part in the time that the height of the negative electrode of tubular is made as to 100%.In addition the liquid level that, preferably contains the liquid of valuable metal is positioned at the position lower than the through hole of uppermost position.All side wall surfaces of the negative electrode of preferred above-mentioned tubular are a continuous face, more preferably, in the time that all side wall surfaces are launched, be tetragon, but can be also, in the time that all side wall surfaces is launched, be trapezoidal, parallelogram etc., one side of the expansion shape of all side wall surfaces can also be non-rectilinear.
From the efficient liquid that can make to contain valuable metal the viewpoint passed through in the negative electrode of tubular consider, at least a portion of the short transverse upper surface of the short transverse lower surface opening of the negative electrode of preferred above-mentioned tubular and the negative electrode of above-mentioned tubular is by obturation.
In the time of electrolytic recovery, make the negative electrode of above-mentioned tubular with the speed rotation of regulation by the work of drive element described later, thereby can improve recovery speed and the organic efficiency of valuable metal.
In addition, the installation portion of installing to electrolyzer of the negative electrode of above-mentioned tubular is not immersed in and contains valuable metal in interior containing in cyanogen liquid.Therefore, in the time changing the negative electrode of tubular, operator can not contact with cyanogen, because of but safe.
anode
As above-mentioned anode, be not particularly limited, preferably use cylindrical bar shape, the anode of the stirring of the liquid that does not hinder energising and contain valuable metal.
Preferred above-mentioned anode disposes many around the negative electrode of above-mentioned tubular.
As the material of above-mentioned anode, if will carry out Electrowinning, be preferably insoluble material.As above-mentioned insoluble material, be not particularly limited, can be according to object and suitably select, for example, can list electrode materials using the oxide compound of platinum metals, carbon, lead, lead alloy, ferrite as electrode catalyst etc.Wherein, in the situation that will electrode catalyst being covered on electrode matrix, preferably using titanium, niobium, zirconium or by the corrosion-resistant metal of the alloy composition of above-mentioned metal as electrode matrix.
drive element
As above-mentioned drive element, for making the cathode rotary of above-mentioned tubular, for example, can list rotation electric motor etc.
Above-mentioned drive element drives the rotating speed of the cathode rotary of tubular to be not particularly limited, and can suitably select according to object, but be preferably 50rpm～100rpm.Be 50rpm～100rpm by the rotating speed that makes above-mentioned negative electrode cylindraceous, compared with the past, can weaken whipping force, thereby the valuable metal after can preventing from separating out comes off on the cathode surface of tubular.The negative electrode of preferred above-mentioned tubular is take the center of the rounded section of this negative electrode cylindraceous as turning axle is rotated.Speed of rotation can be constant or for variable, as intermittently etc.In addition, preferably configuring at driving part the parts that can switch on, to produce current potential between anode and the negative electrode of tubular, for example, is swivel bearing electrode.
other members
As above-mentioned other members, be not particularly limited, can suitably select according to object, for example, can list circulation groove, recycle pump and rectifier etc.
In the recovery method that reclaims valuable metal from the liquid that contains valuable metal of the present invention, valuable metal is separated out with the electrolytic recovery device of the invention described above.
In the present invention, by using the negative electrode of above-mentioned tubular, especially negative electrode cylindraceous, 1/3 of current density can make current density be reduced to discoid negative electrode in the past of use time, the current density of the negative electrode of above-mentioned tubular is not particularly limited, can suitably select according to object, but be preferably 3A/dm
2～10A/dm
2.Thus, can prevent that valuable metal from being powdery and separating out.
In addition, according to known recovery method, i.e. scraping and chemical stripping, reclaim the valuable metal of separating out on the cathode surface of above-mentioned tubular from the negative electrode of tubular.
Herein, with reference to the accompanying drawings of recovery method and the electrolytic recovery device that reclaims valuable metal from the liquid that contains valuable metal of the present invention.Fig. 2 is the schematic diagram representing as an example of the Electrowinning device 100 of electrolytic recovery device of the present invention.
The Electrowinning device 100 of this Fig. 2 has anode 15 and the negative electrode cylindraceous 16 as the negative electrode of tubular, and has the electrolyzer 13 for receiving the liquid that contains valuable metal and the drive element 17 for above-mentioned negative electrode cylindraceous 16 is rotated.
In electrolyzer 13, dispose 15 and 1 negative electrode 16 cylindraceous of 6 anodes being connected with rectifier 14.
As the material of negative electrode 16 cylindraceous, for example, can enumerate tap a blast furnace, the alloy of nickel, copper, chromium, stainless steel, aluminium, titanium or above-mentioned metal.
As shown in Figure 3A, on all side wall surfaces of negative electrode 16 cylindraceous, be formed with many through holes 23 with constant interval.
As shown in Figure 3 B, for above-mentioned through hole 23, the shortest distance between the center of adjacent through hole, 5 times of following degree of the diameter D that interval P is through hole, preferably diameter D is 3mm～10mm.
The short transverse lower surface opening of above-mentioned negative electrode cylindraceous 16, at least a portion of the short transverse upper surface of above-mentioned negative electrode cylindraceous is by obturation.In negative electrode cylindraceous, pass through the efficient liquid that thus, can make to contain valuable metal.
As the material of anode 15, for example, can use the insoluble materials such as carbon, lead, Pt-Ti material and ferrite.
Be configured on the short transverse top of electrolyzer 13 and be provided with relief outlet 13a, carry the liquid that contains valuable metal overflowing from electrolyzer 13 via path 21 to circulation groove 11.
Between circulation groove 11 and electrolyzer 13, coupled together by path 22, be provided with recycle pump 12 midway in path 22.Be provided with the supplying opening 13b for supplying with the liquid that contains valuable metal in the short transverse bottom of electrolyzer 13, this supplying opening 13b is connected with path 22.
Be configured to by recycle pump 12 is worked, can supply with the liquid that contains valuable metal in circulation groove 11 to electrolyzer 13, thus the liquid that makes to contain valuable metal in electrolyzer 13 from below move upward.
Above, describe recovery method and the electrolytic recovery device that reclaims valuable metal from the liquid that contains valuable metal of the present invention in detail, but the present invention is not limited to above-mentioned embodiment, can carries out without departing from the spirit and scope of the invention various changes.
Embodiment
Below, illustrate embodiments of the invention with the accompanying drawing of embodiments of the invention, but the present invention is not limited to this embodiment.
embodiment 1
Be used as the Electrowinning device 100 of the electrolytic recovery device of the present invention shown in Fig. 2 to be incorporated as back and forth as containing valuable metal at the interior gold (Au) containing the valuable metal in cyanogen liquid.
As negative electrode, used such as shown in Figure 3A, the negative electrode cylindraceous 16 of diameter 220mm × height 250mm.This negative electrode cylindraceous is made up of stainless steel (SUS309), on all side wall surfaces, utilizes punch metal and is formed with many through holes 23.As shown in Figure 3 B, the interval P of the through hole 23 of negative electrode 16 cylindraceous is 8mm, and diameter D is 5mm.
As anode 15, use the bar-shaped ferrite electrode materials of diameter 30mm.This anode 15 disposes 6 between the periphery of negative electrode 16 cylindraceous and electrolyzer 13.
The capacity of electrolyzer 13 is 20 liters.Be configured on the short transverse top of electrolyzer 13 and be provided with relief outlet 13a, via path 21 to circulation groove 11 carry overflow from electrolyzer 13 contain valuable metal interior containing cyanogen liquid.In addition, due to the stirrer that does not need liquid to stir, therefore do not arrange.The capacity of circulation groove 11 is 1000 liters.
Between circulation groove 11 and electrolyzer 13, coupled together by path 22, be provided with recycle pump 12 midway in path 22.Be provided with in the short transverse bottom of electrolyzer 13 for supply with contain valuable metal including the supplying opening 13b of cyanogen liquid, this supplying opening 13b is connected with path 22.Supplying opening 13b is disposed at than the foot of negative electrode cylindraceous position on the lower.
Be configured to by recycle pump 12 is worked, can in electrolyzer 13 delivery cycle grooves 11 contain valuable metal interior containing cyanogen liquid, thereby the liquid that makes to contain valuable metal in electrolyzer 13 from below move upward.
First, in circulation groove 11, store and contain gold (Au) 8g/L and cyanogen (CN), what contain valuable metal including cyanogen liquid, utilizes recycle pump 12 to go up and state containing cyanogen liquid to supply 54 per hour in electrolyzer 13, at normal temperatures, be 5A/dm in the current density (DK) of negative electrode
2electrolytic condition under, on one side make negative electrode 16 cylindraceous with rotating speed 73rpm rotation by the rotation as drive element with the work of electric motor 17, Electrowinning carries out on one side.Finding has a large amount of gold to separate out on the cathode surface cylindraceous in the time that Electrowinning finishes.
Next, by using the ICP Emission Spectrophotometer method of ICP apparatus for analyzing luminosity, the valuable metal that contains after 10 hours from Electrowinning starts, after 40 hours, after 60 hours and after 90 hours is measured in interior gold (Au) concentration containing in cyanogen liquid.The results are shown in Fig. 4.From the result of Fig. 4, after 90 hours, be reduced to about 0.01g/L containing gold (Au) concentration in cyanogen liquid from 8g/L.
In addition, speed of separating out, the current efficiency of gold (Au) and the rate of recovery of gold (Au) of gold (Au) have been measured as follows.The results are shown in table 1.
the speed of separating out of gold (Au)
The speed of separating out of gold represents with the golden quality (g) being reclaimed in unit electrolysis time.
the current efficiency of gold (Au)
The current efficiency of gold is that the theory of obtaining according to reclaimed golden quality (g) with by the golden needed energising electric weight of recovery (Ah) reclaims quality (g), the percentage (%) that reclaimed golden quality is tried to achieve divided by theory reclaims quality.
the rate of recovery of gold (Au)
Using the amount of whole gold contained electrolyte before Electrowinning (g) as denominator, be used in before and after Electrowinning, the difference of the amount (g) of the whole gold in electrolyte is tried to achieve percentage (%) divided by this denominator.
comparative example 1
Be used as the Electrowinning device 10 of the electrolytic recovery device in the past shown in Fig. 1, to reclaiming at the interior gold (Au) containing the valuable metal in cyanogen liquid as containing valuable metal.
As discoid negative electrode, use the plate of stainless steel (SUS) system of diameter 186mm × thickness 3mm.
As anode, use the bar-shaped ferrite electrode materials of diameter 30mm.This anode 5 is to dispose 4 across the mode of discoid negative electrode 6.
The capacity of electrolyzer 3 is 20 liters.Be configured on the short transverse top of electrolyzer 3 and be provided with relief outlet 3a, via path 21 to circulation groove 1 carry overflow from electrolyzer 3 contain valuable metal interior containing cyanogen liquid.The capacity of circulation groove 1 is 1000 liters.
Between circulation groove 1 and electrolyzer 3, coupled together by path 22, be provided with pump 2 midway in path 22.Be provided with in the short transverse bottom of electrolyzer 3 for supplying with and contain valuable metal at the interior supplying opening 3b containing cyanogen liquid, this supplying opening 3b is connected with path 22.
Be configured to by recycle pump 2 is worked, can supply with the liquid that contains valuable metal in circulation groove 1 to electrolyzer 3, thus the liquid that makes to contain valuable metal in electrolyzer 3 from below move upward.
First, in circulation groove 1, store contain gold (Au) 8g/L and cyanogen (CN) including cyanogen liquid, utilize recycle pump 2 to go up and state containing cyanogen liquid to supply 54 per hour in electrolyzer 3, at normal temperatures, be 17A/dm in the current density (DK) of negative electrode
2electrolytic condition under, on one side make negative electrode 6 cylindraceous with rotating speed 110rpm rotation by the rotation as drive element with the work of electric motor 7, Electrowinning carries out on one side.
In the mode identical with embodiment 1, gold (Au) concentration containing in cyanogen liquid after 10 hours from Electrowinning starts, after 40 hours, after 60 hours and after 90 hours is measured.The results are shown in Fig. 4.From the result of Fig. 4, after 90 hours, be reduced to 1g/L containing gold (Au) concentration in cyanogen liquid from 8g/L.
In addition, speed of separating out, the current efficiency of gold (Au) and the rate of recovery of gold (Au) of gold (Au) have been measured in the mode identical with embodiment 1.The results are shown in table 1.
table 1
| ? | The speed of separating out (g/h) of Au | The current efficiency (%) of Au | The rate of recovery (%) of Au |
| Embodiment 1 | 190 | 51 | 99.8 |
| Comparative example 1 | 94 | 25 | 87.8 |
From the result of Fig. 4 and table 1, compared with using the comparative example 1 of discoid negative electrode, use golden recovery speed in the embodiment 1 of negative electrode cylindraceous and the golden rate of recovery all significantly to improve.
utilizability in industry
Because the recovery method that reclaims valuable metal from the liquid that contains valuable metal of the present invention and electrolytic recovery device can low costs and reclaim efficiently the valuable metals such as gold from the liquid that contains valuable metal with the higher rate of recovery, therefore, be suitable as from such as plating solution, coating stripping liquid etc. containing the method that reclaims the valuable metals such as gold cyanogen liquid.
description of reference numerals
1. circulation groove; 2. recycle pump; 3. electrolyzer; 4. rectifier; 5. anode; 6. discoid negative electrode; 7. rotation electric motor; 10. Electrowinning device; 11. circulation grooves; 12. recycle pumps; 13. electrolyzers; 14. rectifiers; 15. anodes; 16. negative electrodes cylindraceous; 17. rotation electric motor; 18. axles; 21. paths; 22. paths; 23. through holes; 100. Electrowinning devices.
Claims (5)
1. a recovery method that reclaims valuable metal from the liquid that contains valuable metal, is characterized in that,
Thering is anode and negative electrode cylindraceous and be accommodated with in the electrolyzer of the liquid that contains valuable metal, make above-mentioned cathode rotary cylindraceous while carry out electrolytic recovery, thereby valuable metal is separated out on above-mentioned cathode surface cylindraceous.
2. the recovery method that reclaims valuable metal from the liquid that contains valuable metal according to claim 1, wherein,
Valuable metal is gold, and the liquid that contains valuable metal is to contain golden cyanogen solution.
3. the recovery method that reclaims valuable metal from the liquid that contains valuable metal according to claim 1 and 2, wherein,
The rotating speed of negative electrode cylindraceous is 50rpm～100rpm.
4. an electrolytic recovery device, it,, for the liquid electrolytic recovery valuable metal from containing valuable metal, is characterized in that,
Comprise: the negative electrode of tubular; And
Drive element, this drive element is for making the cathode rotary of above-mentioned tubular;
On all side wall surfaces of the negative electrode of above-mentioned tubular in sense of rotation, there are many through holes.
5. electrolytic recovery device according to claim 4, wherein,
The negative electrode of tubular is cylindric and on the circumferential direction of all side wall surfaces, has many through holes.
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| JP2011219910A JP5848571B2 (en) | 2011-10-04 | 2011-10-04 | Electrolytic recovery device |
| JP2011-219910 | 2011-10-04 | ||
| PCT/JP2012/075389 WO2013051509A1 (en) | 2011-10-04 | 2012-10-01 | Method for recovering valuable metal from liquid containing valuable metal, and electrolytic recovery device |
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| CN114538674A (en) * | 2021-04-23 | 2022-05-27 | 东莞市盛德电解设备科技有限公司 | Recycling treatment process for electroplating rinse water |
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| JP3990483B2 (en) * | 1997-09-24 | 2007-10-10 | 松田産業株式会社 | Gold electrolysis recovery equipment |
| JP2006000792A (en) * | 2004-06-18 | 2006-01-05 | Ebara Corp | Apparatus and method for electrodeposition treatment |
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- 2012-10-01 WO PCT/JP2012/075389 patent/WO2013051509A1/en active Application Filing
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| CN85203738U (en) * | 1985-09-10 | 1986-06-18 | 北京市机电研究院环境保护技术研究所 | Retrieving and disposing device for waste water containing noble metals |
| JPH03120389A (en) * | 1989-09-29 | 1991-05-22 | Konica Corp | Apparatus for recovering silver from used photographic processing solution |
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| JP2010138435A (en) * | 2008-12-10 | 2010-06-24 | Kojima Kagaku Yakuhin Kk | Apparatus for electrolytically collecting silver |
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| CN114538674A (en) * | 2021-04-23 | 2022-05-27 | 东莞市盛德电解设备科技有限公司 | Recycling treatment process for electroplating rinse water |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013051509A1 (en) | 2013-04-11 |
| JP5848571B2 (en) | 2016-01-27 |
| JP2013079427A (en) | 2013-05-02 |
| SG11201401217PA (en) | 2014-07-30 |
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