CN107620118A - A kind of special-shaped cathode for electrolytic deplating process recovery rare precious metal - Google Patents
A kind of special-shaped cathode for electrolytic deplating process recovery rare precious metal Download PDFInfo
- Publication number
- CN107620118A CN107620118A CN201711104886.4A CN201711104886A CN107620118A CN 107620118 A CN107620118 A CN 107620118A CN 201711104886 A CN201711104886 A CN 201711104886A CN 107620118 A CN107620118 A CN 107620118A
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- special
- shaped cathode
- conductive beam
- minus plate
- precious metal
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000008569 process Effects 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 239000010970 precious metal Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 18
- 229910000510 noble metal Inorganic materials 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 12
- 210000000515 tooth Anatomy 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000002923 metal particle Substances 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 22
- 239000002184 metal Substances 0.000 abstract description 22
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a kind of special-shaped cathode for electrolytic deplating process recovery rare precious metal; including the negative electrode ear set on Conductive beam, Conductive beam and the minus plate being fixed on Conductive beam; the negative electrode plate shape is identical with the strip part in Electrolytic Stripping Process, and Conductive beam and the minus plate outer surface is coated with electrically conductive graphite protective layer.Special-shaped cathode can prevent that the dilute expensive/inert metal dissolution degree of anode surface is inconsistent caused by CURRENT DISTRIBUTION is uneven during strip, also can avoid minus plate or Conductive beam from corroding.
Description
Technical field
The present invention relates to the negative electrode of electrolytic deplating process recovery rare precious metal, more particularly to one kind are dilute expensive for electrolytic deplating process recovery
The special-shaped cathode of metal.
Background technology
At present, industrial substantial amounts of dilute expensive/inert metal be present in the electroplating technology parts such as gold-silver ornaments, case and bag slide fastener and
In the electronic products such as printed circuit board (PCB), component.
With the improvement of people's living standards, requirement of the people to necessity and ornament in life also more and more higher,
High-end case and bag, high-grade dress ornament etc. are in addition to the requirement on main material is higher, and to its accessory, such as slide fastener, lock also carry
Going out very high requirement, the ratio that dilute expensive/inert metal is applied wherein is also increasing, thereupon, dilute expensive/inert metal
Accessory caused leftover pieces and superseded defect ware in its production process also increase therewith, therefrom reclaim dilute expensive/inert metal
The focal point of relevant enterprise is also increasingly becomed with its economic advantages.
The swift and violent development of electronics industry causes the electron wastes such as printed circuit board (PCB), component just with annual 18% speed
Increase, turn into fastest-rising rubbish in the world.Electron wastes are as the dilute expensive/inert metal mine of city high-quality, therefrom
It is the direction that current and following a very long time related work person makes great efforts to extract dilute expensive/inert metal.
Reclaiming dilute expensive/inert metal from the plating piece of dilute expensive/inert metal in existing process has chemical dissolution method and electrolysis
Strip method.It is main by the way of chemolysis at present, dilute expensive/inert metal first is dissolved with oxidant and complexing agent, is carried
Get in solution, then by the step such as reduction or absorption, obtain dilute expensive/inert metal simple substance.Because of dilute expensive/inert metal in itself
It is not easy to participate in the attribute reacted, dissolving needs harsher reaction condition and more strongly active reaction reagent, causes course of dissolution
In, the base metal coating of its bottom can also dissolve therewith, therefore before the dilute expensive/inert metal of reduction/absorption, it need to remove in solution
Base-metal ion, technological process is numerous and diverse, and in course of reaction unavoidably can introduce pollution environment ion, increase follow-up waste liquid
Intractability.And Electrolytic Stripping Process is a kind of electrochemical process, coated metal loses electronics in anode, and in complexant or
Enter solution under precipitating reagent or electric field action or be deposited on bottom land and minus plate.Its advantage has：1. strip speed is fast, production effect
Rate is high；2. slot allocation cost is low, economic and practical；3. decoating liquid usage time is grown, low in the pollution of the environment.
At present, because the mechanism difference of the dilute expensive/inert metal of hydrometallurgical recovery does not cause corresponding reclaimer also not
Together, there is chemolysis equipment, also have electrochemistry removing plating equipment etc..Existing electrochemistry reclaims the minus plate of dilute expensive/inert metal
It is writing board shape mostly, and the difference of strip part shape causes the CURRENT DISTRIBUTION during strip uneven, and then sun can be caused
Dilute expensive/inert metal the dissolution degree in pole surface is inconsistent；Furthermore metallic cathode would generally deposit dilute expensive/inert metal, cause
Surface blackening, poorly conductive, influence current flowing；Common minus plate or Conductive beam is suspended on electrolytic cell both sides, its material
Mostly stainless steel or Titanium, although its chemical property is relatively stable, long term can still occur under strong acid environment
Corrosion of metal phenomenon, have influence on the service life of minus plate.
The content of the invention
The purpose of the present invention aim to provide a kind of simple in construction, manufacturing cost it is cheap be used for electrolytic deplating process to reclaim your dilute gold
The special-shaped cathode of category, the special-shaped cathode can prevent during strip the dilute expensive/inertia of anode surface caused by CURRENT DISTRIBUTION is uneven
Dissolving metal degree is inconsistent, also minus plate or Conductive beam can be avoided to corrode.
The purpose of the present invention is achieved through the following technical solutions：A kind of abnormity for electrolytic deplating process recovery rare precious metal
The negative electrode ear set on negative electrode, including Conductive beam, Conductive beam and the minus plate being fixed on Conductive beam, described the moon
Pole plate shape is identical with the strip part in Electrolytic Stripping Process, and Conductive beam and the minus plate outer surface is coated with electrically conductive graphite
Protective layer.
Described minus plate and Conductive beam are made by mixing and formed using resin and graphite.
Further, the bottom at the both ends of the Conductive beam is respectively equipped with the card being adapted to strip groove notch edges thickness
Groove, for its dismounting and fixation with strip groove.
Further, present invention additionally comprises noble metal granule cleaner, for clear up deposited on minus plate after strip it is expensive
Metallic particles, dilute expensive/inert metal deposition is avoided, keep the electric conductivity and current flowing of minus plate.Specifically, your gold
Metal particles cleaner includes fixed mechanism, Y-axis motion, Z axis motion and cleaning brush, the Z axis motion with
Cleaning brush connects, and drives the reciprocating motion of cleaning brush in the Z-axis direction, realizes cleaning brush closer or far from minus plate, the Y-axis
Motion be arranged on fixed mechanism and with Z axis motion, drive Z axis motion and cleaning brush in the vertical direction
Move back and forth, realize cleaning of the cleaning brush to the depositing noble metal particle on minus plate, the fixed mechanism is removably installed
On the Conductive beam of strip groove or special-shaped cathode.
The cleaning brush generally L-shaped, including two L-shaped brush connecting rods, two L-shaped brush connecting rods are relative to be set
Put, and their vertical section is connected with Z axis motion respectively, that relative side is respectively along crosspiece length side on their crosspiece
To the several brush teeths composition brushes of setting, there is spacing between the end of the brush teeth on two brush, when the negative electrode of special-shaped cathode
When plate is between two brushes, brush teeth will not touch minus plate.
As one embodiment of the present of invention, described fixed mechanism includes fix bar and the fixing hole being adapted to therewith,
The fixing hole is arranged on the Conductive beam of strip groove or special-shaped cathode, and the fix bar is connected with fixing hole.
The material of the brush is resistant material, such as pvc, pp.
As one embodiment of the present of invention, the minus plate is a straight panel, and its middle part has groove.
As another embodiment of the present invention, the minus plate is a folded plate.
A kind of method of electrolytic deplating process recovery rare precious metal of another object of the present invention.
Specifically, a kind of method of electrolytic deplating process recovery rare precious metal, uses special-shaped cathode during electrolytic deplating process, should
Special-shaped cathode includes the negative electrode ear set and the minus plate being fixed on Conductive beam on Conductive beam, Conductive beam, described
Negative electrode plate shape is identical with the strip part in Electrolytic Stripping Process, and Conductive beam and the minus plate outer surface is coated with conductive stone
Black protective layer.
Described minus plate and Conductive beam are made by mixing and formed using resin and graphite.
Further, the bottom at the both ends of the Conductive beam is respectively equipped with the card being adapted to strip groove notch edges thickness
Groove, for its dismounting and fixation with strip groove.
Further, the special-shaped cathode also includes noble metal granule cleaner, is sunk for clearing up on minus plate after strip
Long-pending noble metal granule, dilute expensive/inert metal deposition is avoided, keep the electric conductivity and current flowing of minus plate.Specifically, institute
Stating noble metal granule cleaner includes fixed mechanism, Y-axis motion, Z axis motion and cleaning brush, the Z axis motion
Mechanism is connected with cleaning brush, drives cleaning brush reciprocating motion in the Z-axis direction, realizes cleaning brush closer or far from minus plate,
The Y-axis motion be arranged on fixed mechanism and with Z axis motion, drive Z axis motion and cleaning brush vertical
Reciprocating motion on direction, realizes cleaning of the cleaning brush to the depositing noble metal particle on minus plate, and the fixed mechanism is removable
It is arranged on the Conductive beam of strip groove or special-shaped cathode with unloading.
The cleaning brush generally L-shaped, including two L-shaped brush connecting rods, two L-shaped brush connecting rods are relative to be set
Put, and their vertical section is connected with Z axis motion respectively, that relative side is respectively along crosspiece length side on their crosspiece
To the several brush teeths composition brushes of setting, there is spacing between the end of the brush teeth on two brush, when the negative electrode of special-shaped cathode
When plate is between two brushes, brush teeth will not touch minus plate.
As one embodiment of the present of invention, described fixed mechanism includes fix bar and the fixing hole being adapted to therewith,
The fixing hole is arranged on the Conductive beam of strip groove or special-shaped cathode, and the fix bar is connected with fixing hole.
Compared with prior art, the invention has the advantages that：
1. the negative electrode plate shape of the present invention is identical with strip part shape during strip, prevent during strip because anode is several
What architectural difference causes the CURRENT DISTRIBUTION inequality of inside to cause anode (i.e. strip part) plate face strip uniformity bad, can be significantly
Improve reaction effect, improve reaction efficiency.
2. special-shaped cathode provided by the invention configures noble metal granule cleaner, it can clear up what is deposited on minus plate after strip
Noble metal granule, noble metal is reclaimed in time, in order to avoid it is adhered on minus plate, improve its rate of recovery, and do not interfere with and move back again
Plate the process conditions of noble metal.
3. the Conductive beam of special-shaped cathode provided by the invention and the surface of minus plate are coated with electrically conductive graphite protective layer, prevent
Only it corrodes, and extends the service life of negative electrode.
4. special-shaped cathode provided by the invention is simple in construction, preparing raw material is common and cheap, easy to operate, pollution-free, fits
Suitable large-scale production.
Brief description of the drawings
Fig. 1 is the special-shaped cathode structural representation of the electrolytic deplating process recovery rare precious metal of embodiment one.
Fig. 2 is the special-shaped cathode structural representation of the electrolytic deplating process recovery rare precious metal of embodiment one.
Fig. 3 is the structural representation of the noble metal granule cleaner of embodiment one.
Fig. 4 is the special-shaped cathode scheme of installation of the electrolytic deplating process recovery rare precious metal of embodiment one.
Fig. 5 is the special-shaped cathode structural representation of the electrolytic deplating process recovery rare precious metal of embodiment two.
Embodiment
Embodiment one
The special-shaped cathode for being used for electrolytic deplating process recovery rare precious metal shown in Fig. 1 is one embodiment of the present of invention, including
The negative electrode ear 2 set on Conductive beam 1, Conductive beam 1 and the minus plate 3 being fixed on Conductive beam 1.The shape of minus plate 3
It is identical with the strip part in Electrolytic Stripping Process, it is in the present embodiment a straight panel, its middle part has groove 31.Conductive beam 1
The bottom at both ends be respectively equipped with the neck 12 being adapted to the wall thickness of strip groove 5, for the dismounting and fixation with strip groove 5.It is conductive
Wherein one end of crossbeam 1 extends to form an extension 14 along its length, and the extension 14 is provided with positioning hole 13.It is conductive horizontal
Beam 1 and the outer surface of minus plate 3 are coated with electrically conductive graphite protective layer.Minus plate 3 and Conductive beam 1 are mixed using resin and graphite
It is made.
Noble metal granule cleaner 4 includes fixed mechanism, Y-axis motion, Z axis motion 44 and cleaning brush, Z axis
Motion 44 is connected with cleaning brush, is driven the reciprocating motion of cleaning brush in the Z-axis direction, is realized cleaning brush closer or far from the moon
Pole plate 3, Y-axis motion are arranged on fixed mechanism and are connected with Z axis motion 44, driving Z axis motion 44 and clear
The reciprocating motion of clean brush in the vertical direction, realize cleaning of the cleaning brush to the depositing noble metal particle on minus plate 3, fixed machine
Structure is removably mounted on the Conductive beam 1 of strip groove 5 or special-shaped cathode.Cleaning brush generally L-shaped, including two by pvc
Manufactured L-shaped brush connecting rod, two L-shaped brush connecting rods are oppositely arranged, and their vertical section 43 is moved with Z axis respectively
Mechanism 44 connects, and that relative side sets several pvc brush teeths 41 along crosspiece length direction respectively on their crosspiece 42, respectively structure
Into brush.There is spacing, when the minus plate 3 of special-shaped cathode is between two brushes between the end of brush teeth 41 on two brushes
When, brush teeth 41 will not touch minus plate 3.Fixed mechanism includes fix bar 45 and the fixing hole 13 being adapted to therewith.Fix bar 45
Upper installation Y-axis motion, fixing hole 13 are set on the Conductive beam 1 of special-shaped cathode, and fix bar 45 is inserted on fixing hole 13,
So as to be fixed on Conductive beam 1.
Embodiment two
It is not both with embodiment one：Minus plate 3 is a folded plate, and the folded plate is erected still further below by straight panel from after the horizontal turnover in middle part
Straight turnover is formed.
Embodiment three
Using strip workpiece as anode, negative electrode uses the special-shaped cathode of embodiment one or two, strip workpiece configurations and embodiment
Special-shaped cathode shape in one is identical, and under direct current electro ultrafiltration, the coat of metal on anode gradually dissolves from matrix, and with from
Sub- form enters solution.During strip, minus plate 3 surface of the start by set date noble metal granule cleaner 4 to special-shaped cathode
Metallic particles cleared up.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.The present invention's
The embodiment above can only all be considered the description of the invention rather than limitation, therefore every substantial technological according to the present invention
Any subtle modifications, equivalent variations and modifications made to above example, are belonged in the range of technical solution of the present invention.
Claims (10)
1. a kind of special-shaped cathode for electrolytic deplating process recovery rare precious metal, including the moon set on Conductive beam, Conductive beam
Lug and the minus plate being fixed on Conductive beam, it is characterized in that, the negative electrode plate shape and moving back in Electrolytic Stripping Process
Plating piece is identical, and Conductive beam and the minus plate outer surface is coated with electrically conductive graphite protective layer.
2. the special-shaped cathode according to claim 1 for electrolytic deplating process recovery rare precious metal, it is characterized in that, described the moon
Pole plate and Conductive beam are made by mixing and formed using resin and graphite.
3. the special-shaped cathode according to claim 1 for electrolytic deplating process recovery rare precious metal, it is characterized in that, the conduction
The bottom at the both ends of crossbeam is respectively equipped with the neck being adapted to strip groove notch edges thickness, for its dismounting with strip groove and
It is fixed.
4. the special-shaped cathode for being used for electrolytic deplating process recovery rare precious metal according to claim 1 or 2 or 3, it is characterized in that, also
Including noble metal granule cleaner, for clearing up the noble metal granule deposited on minus plate after strip.
5. the special-shaped cathode according to claim 4 for electrolytic deplating process recovery rare precious metal, it is characterized in that, your gold
Metal particles cleaner includes fixed mechanism, Y-axis motion, Z axis motion and cleaning brush, the Z axis motion with
Cleaning brush connects, and drives the reciprocating motion of cleaning brush in the Z-axis direction, realizes cleaning brush closer or far from minus plate, the Y-axis
Motion is arranged on fixed mechanism and is connected with Z axis motion, drives Z axis motion and cleaning brush in vertical direction
On reciprocating motion, realize cleaning of the cleaning brush to the depositing noble metal particle on minus plate, the fixed mechanism is removably
On the Conductive beam of strip groove or special-shaped cathode.
6. the special-shaped cathode according to claim 5 for electrolytic deplating process recovery rare precious metal, it is characterized in that, the cleaning
Generally L-shaped, including two L-shaped brush connecting rods is brushed, two L-shaped brush connecting rods are oppositely arranged, both vertical sections point
It is not connected with Z axis motion, that relative side sets several brush teeths to form along crosspiece length direction respectively on both crosspieces
Brush, there is spacing between the end of the brush teeth on two brush, when the minus plate of special-shaped cathode is between two brushes,
Brush teeth will not touch minus plate.
7. the special-shaped cathode according to claim 5 for electrolytic deplating process recovery rare precious metal, it is characterized in that, described consolidates
Determining mechanism includes fix bar and the fixing hole being adapted to therewith, and the fixing hole is arranged on strip groove or the conduction of special-shaped cathode is horizontal
Liang Shang, the fix bar are connected so as to fixed noble metal granule cleaner with fixing hole.
8. the special-shaped cathode for being used for electrolytic deplating process recovery rare precious metal according to claim 5 or 6 or 7, it is characterized in that, institute
The material for stating cleaning brush is resistant material.
9. the special-shaped cathode according to claim 4 for electrolytic deplating process recovery rare precious metal, it is characterized in that, the negative electrode
Plate is a straight panel, and its middle part has groove, or the minus plate is a folded plate.
10. a kind of method of electrolytic deplating process recovery rare precious metal, it is characterized in that, special-shaped cathode is used during electrolytic deplating process,
The special-shaped cathode includes the negative electrode ear set and the minus plate being fixed on Conductive beam on Conductive beam, Conductive beam, institute
It is identical with the strip part in Electrolytic Stripping Process to state negative electrode plate shape, Conductive beam and the minus plate outer surface is coated with conduction
Graphite protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104886.4A CN107620118B (en) | 2017-11-10 | 2017-11-10 | Special-shaped cathode for electrolytic stripping and recycling rare noble metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104886.4A CN107620118B (en) | 2017-11-10 | 2017-11-10 | Special-shaped cathode for electrolytic stripping and recycling rare noble metals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107620118A true CN107620118A (en) | 2018-01-23 |
| CN107620118B CN107620118B (en) | 2024-05-28 |
Family
ID=61098712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711104886.4A Active CN107620118B (en) | 2017-11-10 | 2017-11-10 | Special-shaped cathode for electrolytic stripping and recycling rare noble metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107620118B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560643A (en) * | 2020-05-20 | 2020-08-21 | 王艳军 | Metal sheet plating device convenient to rare metal of negative pole is retrieved |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107620118B (en) | 2024-05-28 |
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