CN104185695A - Method of removing metal from a cathode - Google Patents
Method of removing metal from a cathode Download PDFInfo
- Publication number
- CN104185695A CN104185695A CN201280050500.5A CN201280050500A CN104185695A CN 104185695 A CN104185695 A CN 104185695A CN 201280050500 A CN201280050500 A CN 201280050500A CN 104185695 A CN104185695 A CN 104185695A
- Authority
- CN
- China
- Prior art keywords
- metal
- negative electrode
- magnetic apparatus
- negative plate
- deposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
- C25C7/08—Separating of deposited metals from the cathode
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/08—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F5/00—Electrolytic stripping of metallic layers or coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A method of separating an electrolytically deposited metal from a cathode plate is disclosed. The method includes the step of locating a magnetic device in operative proximity to a face of the cathode plate, the face of the cathode plate having electrolytically deposited metal disposed thereon. The method also includes the step of applying a magnetic field using the magnetic device to thereby separate the deposited metal from the face of the cathode plate.
Description
Technical field
The present invention relates to the method for reclaiming metal.Particularly, but be not exclusively, the present invention relates to remove from negative electrode the method for the metal of electrolytic deposition.
Background technology
It is a kind of well-known technology for the relatively pure metal of emanating to obtain solid metal product that the metal ion comprising in solution is carried out to electrolysis.This technology is generally used for the production process of nickel, cobalt, copper and zinc.
Solid state cathode is positioned in metal ion solution, and applies electric current to negative electrode.Then there is metal electrodeposition on negative electrode.Periodically, remove negative electrode and accompanying metallic product from solution.Then from cathodic disbonding solid metal product, and then reuse ideally negative electrode.
Conventionally by scope from being carried out from cathodic disbonding solid metal product with the manual physical method that removes to automatic stripping machine of crowbar by people.
A kind of method of utilizing stripping machine is disclosed in US4840710.In the method, first bending cathode with the part of metal that causes deposition from cathodic disbonding, thereby form gap.Then by wedge inserted into gap and force wedge deposition metal and negative electrode between, to separate the metal of deposition.
Due to the action of crowbar, wedge, cutter etc., or because bending or hammering negative electrode are to loosen the metal of deposition, may cause the damage of negative electrode for separating of the physical method of the metal of deposition.
In the time of cobalt from cathodic disbonding electrolytic deposition, face concrete difficulty.The negative electrode using in cobalt reclaims is designed the conducting metal isolated island being surrounded by non-conducting material (such as coating or resin) conventionally.Therefore cobalt is deposited as the part of many separation.Cobalt tends to be deposited as and makes to form tubercle or amorphous shape, instead of the flat sheet similar to the shape forming in copper deposition.
Multiple some physical sepn that therefore need to be on negative electrode from cathodic disbonding cobalt.Therefore there are multiple points, the particularly damage to non-conducting material that wherein may easily occur anticathode damage.Can cause forming metal deposit being damaged on region to the damage of non-conducting material, this may cause again the further damage of non-conducting material.Therefore, it is unavailable that negative electrode becomes, and non-conducting material must be removed and be employed with the interval of rule.The conducting metal of negative electrode also may become and be damaged, and this just can allow accumulation of impurities on negative electrode, and becomes the merged metal that enters to deposit.With regard to maintenance itself and keep in repair the required shut-down period, the maintenance of anticathode conducting metal may be expensive.
There is the variety of issue being associated with the processing of the each metal in above-mentioned metal.
Summary of the invention
The object of the invention is to overcome or at least alleviate one or more in the problems referred to above and/or provide use or commercial selection for human consumer.
In one form, but it needs not be unique or is actually form the most widely, the present invention relates to a kind of device for the metal from cathodic disbonding electrolytic deposition, described device comprises magnetic apparatus, this magnetic apparatus is movable to the position relevant with negative electrode, so that this magnetic apparatus can be from the metal of cathodic disbonding deposition thus.
Preferably, magnetic apparatus is electromagnet.
In another form, the present invention relates to a kind of method of the metal from cathodic disbonding electrolytic deposition, comprise the following steps:
Magnetic field is established to the negative electrode that is positioned adjacent to the metal with deposition thereon, with the metal from cathodic disbonding deposition.
Preferably, the one or more steps of method in can comprising the following steps:
Negative electrode is positioned in the electrolyzer that comprises metal ion in solution;
Apply electric current metal ion is reduced to the metal depositing on negative electrode to solution;
Remove negative electrode from electrolyzer;
Magnetic apparatus is placed as and approaches negative electrode, thereby make metal preferentially adhere to magnetic apparatus; And/or
Remove negative electrode.
In a particularly preferred embodiment of the method, magnetic apparatus is electromagnet.After electromagnet removes negative electrode, the magnetic field of reversion or cut-out electromagnet, thus metal is discharged from electromagnet.
In another form, the present invention relates to separate from negative plate the method for the metal of electrolytic deposition, the method comprises the following steps:
Magnetic apparatus is positioned in to the face that approaches negative plate in operation, the mask of negative plate has the metal of the electrolytic deposition being located thereon; And
Apply magnetic field with magnetic apparatus, to separate thus the metal of deposition from the face of negative plate.
Preferably, magnetic apparatus is electromagnets, and the step that applies magnetic field comprises to electromagnet and applies electric current.
Suitably, magnetic apparatus is electromagnets, and the step that applies magnetic field is drawn together and continued the relatively short burst length and apply relatively high electric current to electromagnet.
In a preferred form, electromagnet is subjected to pulse at least twice.
Preferably, before applying magnetic field, magnetic apparatus is positioned at the first surface that approaches negative plate in operation, and the second magnetic apparatus is positioned at and in operation, approaches second of negative plate.
The step that applies magnetic field comprises use the first magnetic apparatus and applies magnetic field and use the second magnetic apparatus to apply magnetic field, to separate from the first surface of negative plate and second of negative plate the metal depositing thus.
In another form, the present invention relates to separate from negative plate the method for the metal of electrolytic deposition, the method comprises the following steps:
Negative electrode is positioned in the electrolyzer that comprises metal ion in solution;
Apply electric current to solution, metal ion is reduced to the metal being deposited on negative electrode;
Remove negative electrode from electrolyzer;
Magnetic apparatus is positioned in to the face that approaches negative plate in operation, the mask of negative plate has the metal of the electrolytic deposition being located thereon; And
Apply electromagnetic field with magnetic apparatus, to separate thus the metal of deposition from the face of negative plate.
Further feature of the present invention will become obvious by describing in detail below.
Brief description of the drawings
In order to help to understand the present invention and those skilled in the art can be tried out the present invention, in the mode as example only, preferred embodiment of the present invention is described with reference to accompanying drawing.
Figure 1A to Fig. 1 C illustrates the metal that uses according to one embodiment of present invention magnetic apparatus to separate electrolytic deposition from negative electrode order.
Embodiment
Magnetic apparatus 100 is used to peel off from negative electrode 200 metal 210 of electrolytic deposition, as shown in the diagram of Fig. 1.
Magnetic apparatus 100 can be any shape or size, but the about size and dimension identical with negative electrode 200 preferably.Alternatively, the size of magnetic apparatus 100 can be less than negative electrode 200, and magnetic apparatus is removable in operation, to be positioned proximate to successively negative electrode 200 All Rangeses.
Magnetic apparatus 100 can be permanent magnet or electromagnet.Preferably magnetic apparatus 100 is electromagnets, thus magnetic field can be cut off or reversed polarity with allow adhere to metal be released.Alternatively, after permanent magnet can be placed in surface, thereby make the magnetic field that generated by permanent magnet by metal adhesion on surface.In the time that permanent magnet is removed after surface, anyly adheres to surperficial metal and be all released.
The intensity in the magnetic field being generated by magnetic apparatus 100 is selected as enough separating from negative electrode 200 metal of deposition.
Metal deposition (process is not shown) on negative electrode 200 is started from negative electrode 200 to immerse the step in the electrolyzer of the solution that comprises the metal ion that comprises dissolving.Apply electric current via negative electrode 200 and corresponding anode to solution, this by electrolytic reduction metal ion so that pure metal is deposited on negative electrode 200.
This process can, for segregation and the various metals of purifying, comprise cobalt, nickel, copper and zinc.Negative electrode 200 is made up of conducting metal (being often stainless steel), and can be sheltered by the cover strip 220 on edge.Alternatively, negative electrode 200 can be divided into the conductor metal island being surrounded by non-conductive material, thereby makes the metal of deposition form instead of form single sheet (not shown) by part.
After the metal of q.s being deposited on negative electrode 200, negative electrode 200 is removed from electrolyzer, and moves to stripping area.
In the time that negative electrode 200 is just being stripped from the metal 210 of deposition, peg 230, supporting structure (not shown) or its combined support that negative electrode 200 is attached.
As shown at Figure 1A, magnetic apparatus 100 is placed in and approaches negative electrode 200, thereby makes negative electrode in operation, approach the magnetic field being generated by magnetic apparatus 100, thereby makes the metal 210 of deposition stand the magnetic field force being generated by magnetic apparatus 100.
In the situation that negative electrode 200 is equipped with edges cover bar 200, edges cover bar 220 from negative electrode 200 towards outstanding.In this case, avoid metal 210 or the cathode plane 240 of magnetic apparatus 100 contact depositions.This just provides the advantage of being avoided magnetic apparatus 100 to cling to cathode plane 240.
In a preferred embodiment, placed two magnetic apparatus 100, each of negative electrode 200 approaches a magnetic apparatus 100.
When magnetic apparatus 100 approaches negative electrode 200(as shown in Figure 1B) and magnetic field while being activated, the metal 210 of deposition moves from negative electrode 200, and preferably adheres to magnetic apparatus 100.
Alternatively, continue the relatively short burst length to impose pulse with the magnetic field that large electric current carrys out magnetotropism equipment 100, to separate the metal of deposition from negative electrode 200.Preferably, magnetic apparatus 100 is subjected to pulse at least twice.
In this embodiment, negative electrode 200 is positioned in encloses container etc., so that the metal of deposition can be assembled.
In a preferred form, the relatively short burst length that continues the 45ms time length imposes pulse with the relatively high electric current of about 1500000 amperes to magnetic apparatus 100.
In a preferred form, two magnetic apparatus 100 of electromagnets are positioned on the either side of negative electrode 200 and approach negative electrode 200 in operation, and with the electric current of about 1500000 amperes, each magnetic apparatus 100 is imposed to pulse with the pulse of 45ms.
Once the metal 210 of deposition has adhered to magnetic apparatus 100, removes negative electrode 200, from magnetic apparatus 100 as shown at Fig. 1 C.Then the polarity of reversion or deexcitation magnetic apparatus 100, thus the metal of deposition is discharged from magnetic apparatus 100 and the people's reception funnel that falls, drop on the first-class (not shown) of travelling belt.
Alternatively, the metal 210 of deposition shifts from negative electrode 200 in certain embodiments, and Direct precipitation is in being oriented to the container etc. of the metal of capturing deposition.In these embodiments, the metal of deposition is not magnetically positioned on the surface of magnetic apparatus 100.
Cathodic disbonding method of the present invention does not need negative electrode bending or any physical contact between peel-off device and negative electrode.The physical force of any damage of any non-conducting material that therefore can cause anticathode 200 and exist is not applied on negative electrode 200.This can reduce running cost, as " life-span " of each negative electrode 200 can significantly increase., when compared with the negative electrode of peeling off by standard physical method, each negative electrode 200 can be reused many many number of times before at the face (resurface) of need to reforming.
The metal of removing deposition is quick and simple, and does not need to have the machine of a lot of movable parts, pressurized air etc.Because the metal being stripped from keeps adhering to magnetic apparatus until magnet polarity is inverted, the metal that therefore can control simply strip operation and be stripped from.
Run through specification sheets, object is to describe the present invention, but not the present invention is limited to the concrete set of any one embodiment or feature.Those skilled in the art can realize multiple amendments by specific embodiment, and it will still fall within the scope of the present invention.For example, for strip operation, negative electrode 200 is approached to magnetic apparatus 100 or magnetic apparatus 100 is approached to negative electrode 200 both are arbitrary.
Should be understood that and can, in the situation that not deviating from the spirit and scope of the present invention, make various other changes and amendment to described embodiment.
Claims (7)
1. a method that separates the metal of electrolytic deposition from negative plate, said method comprising the steps of:
Magnetic apparatus is positioned in to the upper face that approaches described negative plate of operation, and the described mask of described negative plate has the metal of the electrolytic deposition being located thereon; And
Apply magnetic field with described magnetic apparatus, to separate thus the metal of described deposition from described of described negative plate.
2. method according to claim 1, the form that wherein said magnetic apparatus is electromagnet, and the step that applies described magnetic field comprises to described electromagnet and applies electric current.
3. method according to claim 1, the form that wherein said magnetic apparatus is electromagnet, and the step that applies described magnetic field comprises and continues the relatively short burst length and apply relatively high electric current to described electromagnet.
4. method according to claim 3, wherein said electromagnet is subjected to pulse at least twice.
5. method according to claim 1, wherein, before applying described magnetic field, described magnetic apparatus is positioned at the upper first surface that approaches described negative plate of operation, and the second magnetic apparatus is positioned at upper second of approaching described negative plate of operation.
6. method according to claim 5, the step that wherein applies described magnetic field comprises and uses described the first magnetic apparatus to apply magnetic field and use described the second magnetic apparatus to apply magnetic field, with described second metal that separates described deposition from the described first surface of described negative plate and described negative plate thus.
7. a method that separates the metal of electrolytic deposition from negative plate, said method comprising the steps of:
Negative electrode is positioned in the electrolyzer that comprises metal ion in solution;
Apply electric current to described solution, described metal ion is reduced to the metal being deposited on described negative electrode;
Remove described negative electrode from described electrolyzer;
Magnetic apparatus is positioned in to the upper face that approaches described negative plate of operation, and the described mask of described negative plate has the metal of the electrolytic deposition being located thereon; And
Apply magnetic field with described magnetic apparatus, to separate thus the metal of described deposition from described of described negative plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2011904518 | 2011-10-31 | ||
| AU2011904518A AU2011904518A0 (en) | 2011-10-31 | Method of removing metal from a cathode | |
| PCT/AU2012/001333 WO2013063644A2 (en) | 2011-10-31 | 2012-10-31 | Method of removing metal from a cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104185695A true CN104185695A (en) | 2014-12-03 |
Family
ID=48192929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280050500.5A Pending CN104185695A (en) | 2011-10-31 | 2012-10-31 | Method of removing metal from a cathode |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN104185695A (en) |
| CA (1) | CA2854102A1 (en) |
| FI (1) | FI20145302L (en) |
| WO (1) | WO2013063644A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Fe2+The 3 D electrode reactor that cathodic reduction is coupled with anodic oxidation |
| CN109824020A (en) * | 2019-03-26 | 2019-05-31 | 扬州大学 | A kind of electrochemical deposition method removes the electrode of iron ion in sulfuric acid solution |
| CN109825855A (en) * | 2019-03-26 | 2019-05-31 | 扬州大学 | Electrochemical deposition method removes the three-diemsnional electrode of iron ion in sulfuric acid solution |
| CN109879256A (en) * | 2019-03-26 | 2019-06-14 | 扬州大学 | A kind of Fe2+The electrochemical reactor that cathodic reduction is coupled with anodic oxidation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2005546A1 (en) * | 1970-02-06 | 1971-09-23 | Inst Fiz Metallow An Sssr | Removal of non-ferrous deposits from cathode - impulses |
| EP0363166A1 (en) * | 1988-10-06 | 1990-04-11 | Peter Thomas Reid | Method and apparatus for the magnetic separation of non-magnetic electrically conductive materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3118793B2 (en) * | 1994-09-06 | 2000-12-18 | 株式会社石垣 | Separation method of toxic metals in sludge |
-
2012
- 2012-10-31 CA CA2854102A patent/CA2854102A1/en not_active Abandoned
- 2012-10-31 WO PCT/AU2012/001333 patent/WO2013063644A2/en active Application Filing
- 2012-10-31 CN CN201280050500.5A patent/CN104185695A/en active Pending
-
2014
- 2014-03-31 FI FI20145302A patent/FI20145302L/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2005546A1 (en) * | 1970-02-06 | 1971-09-23 | Inst Fiz Metallow An Sssr | Removal of non-ferrous deposits from cathode - impulses |
| EP0363166A1 (en) * | 1988-10-06 | 1990-04-11 | Peter Thomas Reid | Method and apparatus for the magnetic separation of non-magnetic electrically conductive materials |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Fe2+The 3 D electrode reactor that cathodic reduction is coupled with anodic oxidation |
| CN109824020A (en) * | 2019-03-26 | 2019-05-31 | 扬州大学 | A kind of electrochemical deposition method removes the electrode of iron ion in sulfuric acid solution |
| CN109825855A (en) * | 2019-03-26 | 2019-05-31 | 扬州大学 | Electrochemical deposition method removes the three-diemsnional electrode of iron ion in sulfuric acid solution |
| CN109879256A (en) * | 2019-03-26 | 2019-06-14 | 扬州大学 | A kind of Fe2+The electrochemical reactor that cathodic reduction is coupled with anodic oxidation |
| CN109811355B (en) * | 2019-03-26 | 2021-04-16 | 扬州大学 | Fe2+Three-dimensional electrode reactor with coupled cathode reduction and anode oxidation |
| CN109824020B (en) * | 2019-03-26 | 2022-01-28 | 扬州大学 | Electrode for removing iron ions in sulfuric acid solution by electrochemical deposition method |
| CN109879256B (en) * | 2019-03-26 | 2022-04-12 | 扬州大学 | Fe2+Electrochemical reactor with coupled cathode reduction and anode oxidation |
Also Published As
| Publication number | Publication date |
|---|---|
| FI20145302L (en) | 2014-03-31 |
| WO2013063644A2 (en) | 2013-05-10 |
| CA2854102A1 (en) | 2013-05-10 |
| WO2013063644A3 (en) | 2014-09-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |