CN108754544A - A method of using melten salt electriochemistry method thick indium is recycled from useless ITO powder - Google Patents
A method of using melten salt electriochemistry method thick indium is recycled from useless ITO powder Download PDFInfo
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- CN108754544A CN108754544A CN201810528444.0A CN201810528444A CN108754544A CN 108754544 A CN108754544 A CN 108754544A CN 201810528444 A CN201810528444 A CN 201810528444A CN 108754544 A CN108754544 A CN 108754544A
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- ito powder
- indium
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- liquid metal
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- 229910052738 indium Inorganic materials 0.000 title claims abstract description 51
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 150000003839 salts Chemical class 0.000 title claims abstract description 18
- 239000003792 electrolyte Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 36
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 27
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 24
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 13
- 229940068984 polyvinyl alcohol Drugs 0.000 claims abstract description 13
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims abstract description 13
- 229910052786 argon Inorganic materials 0.000 claims abstract description 12
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 16
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 16
- 239000001103 potassium chloride Substances 0.000 claims description 8
- 235000011164 potassium chloride Nutrition 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 abstract description 8
- 230000005518 electrochemistry Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- LTWKPSUCYMEELK-UHFFFAOYSA-N [Sn].[In].[C] Chemical class [Sn].[In].[C] LTWKPSUCYMEELK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
-
- 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
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of methods recycling thick indium from useless ITO powder using melten salt electriochemistry method, belong to technical field of molten salt electrochemistry.5wt% poly-vinyl alcohol solutions are added into useless ITO powder to be then uniformly mixed, are pressed into the disc-shaped material of 10 ~ 15mm of diameter；By disc-shaped material drying at room temperature, sintering 4h obtains sintered material；Under complete argon gas atmosphere, by electrolyte melting, liquid metal cathode is placed at the top of molten electrolyte layer, sintered material is put into molten electrolyte layer, graphite anode is inserted on molten electrolyte, decomposition voltage is 3V, current density is 0.8 ~ 1.0 A/cm2Under the conditions of be electrolysed 4h, indium stannum alloy is obtained inside liquid metal cathode.The present invention recycles thick indium according to the difference according to ITO powder and electrolyte decomposition voltage, using the useless ITO powder of the method Direct Electrolysis of molten-salt electrolysis.
Description
Technical field
The present invention relates to a kind of methods recycling thick indium from useless ITO powder using melten salt electriochemistry method, belong to fused salt electrification
Learn technical field.
Background technology
Indium is a kind of important electronic industrial material, because its light permeability and electric conductivity are strong, be mainly used for light-emitting diodes light,
The manufacture of the devices such as laser tube, liquid crystal display and liquid crystal pick-up tube is especially used to produce ITO target.Due to indium in the world
By-product of the 90% of yield from Lead And Zinc Smelter, therefore indium belongs to scarce resource, and the recycling of indium then seems particularly
It is important.
Content of the indium oxide in ITO is about 90%, currently, the utilization rate of ITO target sputter coating is generally 30%, residue
Part becomes ITO waste materials, and leftover pieces, cutting, the waste product etc. generated in ITO productions all can serve as the secondary money of indium production
Source.Due to the shortage and rise in price of indium, efficient, low cost, environmental-friendly indium recovery process are studied from discarded ITO powder
And technology is very important.
Currently, including mainly acid extracting for the method for the recycling extraction indium metal from ITO waste materials, ion-exchange, molten
Agent extraction etc. chemically and physically purifies the process integration being combined.103590072 A of patent CN disclose a kind of high purity indium
Target fragment is carried out redox reaction using activated carbon in reduction furnace and obtains indium stannum alloy, then used by preparation method
The method separation indium metal tin of molten-salt electrolysis simultaneously carries out re-electrolysis purification indium, obtains high purity indium.This method is to use activated carbon
Indium tin is restored, and indium is purified using melten salt electriochemistry method to obtain high purity indium.But the patent application still remains need
Reducing agent progress reduction roasting is added and obtains indium stannum alloy, the shortcomings of type is more, and flow is complex are added in raw material.
Invention content
The problem of existing for the above-mentioned prior art and deficiency, the present invention provide it is a kind of using melten salt electriochemistry method from useless
The method that thick indium is recycled in ITO powder.The present invention uses molten-salt electrolysis according to the difference according to ITO powder and electrolyte decomposition voltage
The useless ITO powder of method Direct Electrolysis recycles thick indium.The invention is realized by the following technical scheme.
A method of thick indium being recycled from useless ITO powder using melten salt electriochemistry method, specifically includes following steps：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 10 ~ 15mm's of diameter
Disc-shaped material；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 800 ~ 1200 DEG C sintering 4h burnt
Tie material；
Step 3, under complete argon gas atmosphere（It passes first into purity and is 99.9% argon gas 20min, then start to warm up）, will be electrolysed
Matter is heated to 450 DEG C of fusings, under being kept the temperature at 450 DEG C, liquid metal cathode is placed at the top of molten electrolyte layer, step 2 is obtained
Sintered material be put into molten electrolyte layer, at this time sintered material due to density contrast be suspended in molten electrolyte and liquid gold
Between belonging to cathode, graphite anode is inserted on molten electrolyte, decomposition voltage is 3V, current density is 0.8 ~ 1.0 A/cm2Item
It is electrolysed 4h under part, indium stannum alloy is obtained inside liquid metal cathode.
Useless ITO powder and poly-vinyl alcohol solution mass ratio are 8 ~ 9 in the step 1：0.8~1.2.
Electrolyte is molar ratio 58.2 in the step 3：41.8 lithium chloride and potassium chloride mixed electrolyte.Molar ratio
58.2：41.8 lithium chloride and potassium chloride is that the molar ratio of their eutectic points forms.
Liquid metal cathode is liquid metal indium or tin in the step 3.
Add the sintered material of a piece of step 2 during the step 3 into molten electrolyte every 15min.
According to calculation of thermodynamics, due to the decomposition voltage of indium oxide and tin oxide at 450 DEG C be respectively -1.19V and -
1.12V so decomposition voltage is selected as 3V in Molten, but requires to be less than electrolyte lithium chloride and potassium chloride simultaneously
Decomposition voltage at 450 DEG C；Current density is selected as 0.8 ~ 1.0A/cm2。
The beneficial effects of the invention are as follows：
The invention has the advantages that the useless ITO powder of molten-salt electrolysis is directly used to recycle indium stannum alloy；Electrolysis is increased using liquid cathode
Reaction contact area, electrolytic production of metals are directly entered liquid cathode, will not be wrapped in ITO powder surface and hinder reaction；Entire mistake
Journey safety and environmental protection, no pernicious gas and harmful waste water generate.
Specific implementation mode
With reference to embodiment, the invention will be further described.
Embodiment 1
This recycles the method for thick indium using melten salt electriochemistry method from useless ITO powder, specifically includes following steps：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 3g diameters 15mm's
Disc-shaped material；Wherein useless ITO powder and poly-vinyl alcohol solution mass ratio are 9：1；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 1200 DEG C sintering 4h obtain sinter
Material；
Step 3, under complete argon gas atmosphere（It passes first into purity and is 99.9% argon gas 20min, then start to warm up）, by 100g
Electrolyte（Electrolyte is molar ratio 58.2：41.8 lithium chloride and potassium chloride mixed electrolyte）450 DEG C of fusings are heated to,
Under 450 DEG C of heat preservations, liquid metal cathode is placed at the top of molten electrolyte layer（50g liquid metal indiums）, sintering that step 2 is obtained
Material is put into molten electrolyte layer, and sintered material is suspended in molten electrolyte and liquid metal cathode due to density contrast at this time
Between, graphite anode is inserted on molten electrolyte, decomposition voltage be 3V, current density 1.0A/cm2Under the conditions of be electrolysed 4h,
Indium stannum alloy is obtained inside liquid metal cathode.
Indium stannum alloy is prepared in the present embodiment to detect to obtain indium, tin percentage content to be 95.36% using XRF
With 4.18%.
It is calculated according to gravimetric method, the current efficiency that In is recycled from ITO waste materials is 81.2%.
Embodiment 2
This recycles the method for thick indium using melten salt electriochemistry method from useless ITO powder, specifically includes following steps：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 2g diameters 12mm's
Disc-shaped material；Wherein useless ITO powder and poly-vinyl alcohol solution mass ratio are 8：1；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 1000 DEG C sintering 4h obtain sinter
Material；
Step 3, under complete argon gas atmosphere（It passes first into purity and is 99.9% argon gas 20min, then start to warm up）, by 100g
Electrolyte（Electrolyte is molar ratio 58.2：41.8 lithium chloride and potassium chloride mixed electrolyte）450 DEG C of fusings are heated to,
Under 450 DEG C of heat preservations, liquid metal cathode is placed at the top of molten electrolyte layer（50g liquid metal tin）, sintering that step 2 is obtained
Material is put into molten electrolyte layer, and sintered material is suspended in molten electrolyte and liquid metal cathode due to density contrast at this time
Between, graphite anode is inserted on molten electrolyte, decomposition voltage be 3V, current density 0.8A/cm2Under the conditions of be electrolysed 4h,
Indium stannum alloy is obtained inside liquid metal cathode.
Indium stannum alloy is prepared in the present embodiment to detect to obtain indium, tin percentage content to be 31.73% using XRF
With 67.7%.
It is calculated according to gravimetric method, the current efficiency that In is recycled from ITO waste materials is 76.6%.
Embodiment 3
This recycles the method for thick indium using melten salt electriochemistry method from useless ITO powder, specifically includes following steps：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 2g diameters 10mm's
Disc-shaped material；Wherein useless ITO powder and poly-vinyl alcohol solution mass ratio are 9：1.2；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 800 DEG C sintering 4h obtain sinter
Material；
Step 3, under complete argon gas atmosphere（It passes first into purity and is 99.9% argon gas 20min, then start to warm up）, by 100g
Electrolyte（Electrolyte is molar ratio 58.2：41.8 lithium chloride and potassium chloride mixed electrolyte）450 DEG C of fusings are heated to,
Under 450 DEG C of heat preservations, liquid metal cathode is placed at the top of molten electrolyte layer（50g liquid metal tin）, sintering that step 2 is obtained
Material is put into molten electrolyte layer, and sintered material is suspended in molten electrolyte and liquid metal cathode due to density contrast at this time
Between, graphite anode is inserted on molten electrolyte, decomposition voltage be 3V, current density 0.8A/cm2Under the conditions of be electrolysed 4h,
Indium stannum alloy is obtained inside liquid metal cathode.
Indium stannum alloy is prepared in the present embodiment to detect to obtain indium, tin percentage content to be 29.86% using XRF
With 68.52%.
It is calculated according to gravimetric method, the current efficiency that In is recycled from ITO waste materials is 73.5%.
Embodiment 4
This recycles the method for thick indium using melten salt electriochemistry method from useless ITO powder, specifically includes following steps：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 2g diameters 10mm's
Disc-shaped material；Wherein useless ITO powder and poly-vinyl alcohol solution mass ratio are 8：0.8；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 800 DEG C sintering 4h obtain sinter
Material；
Step 3, under complete argon gas atmosphere（It passes first into purity and is 99.9% argon gas 20min, then start to warm up）, by 100g
Electrolyte（Electrolyte is molar ratio 58.2：41.8 lithium chloride and potassium chloride mixed electrolyte）450 DEG C of fusings are heated to,
Under 450 DEG C of heat preservations, liquid metal cathode is placed at the top of molten electrolyte layer（50g liquid metal indiums）, sintering that step 2 is obtained
Material is put into molten electrolyte layer, and sintered material is suspended in molten electrolyte and liquid metal cathode due to density contrast at this time
Between, graphite anode is inserted on molten electrolyte, decomposition voltage be 3V, current density 0.9A/cm2Under the conditions of be electrolysed 4h,
Indium stannum alloy is obtained inside liquid metal cathode.
Indium stannum alloy is prepared in the present embodiment to detect to obtain indium, tin percentage content to be 96.28% using XRF
With 3.55%.
It is calculated according to gravimetric method, the current efficiency that In is recycled from ITO waste materials is 77.9%.
The specific implementation mode of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula can also be made without departing from the purpose of the present invention within the knowledge of a person skilled in the art
Go out various change.
Claims (5)
1. a kind of method recycling thick indium from useless ITO powder using melten salt electriochemistry method, it is characterised in that specifically include following step
Suddenly：
5wt% poly-vinyl alcohol solutions are added into useless ITO powder and then are uniformly mixed for step 1, are pressed into 10 ~ 15mm's of diameter
Disc-shaped material；
Step 2, by the disc-shaped material drying at room temperature of step 1 for 24 hours after, in air atmosphere 800 ~ 1200 DEG C sintering 4h burnt
Tie material；
Step 3, under complete argon gas atmosphere, by electrolyte be heated to 450 DEG C fusing, at 450 DEG C keep the temperature under, molten electrolyte layer
Liquid metal cathode is placed at top, and the sintered material that step 2 obtains is put into molten electrolyte layer, and sintered material is outstanding at this time
It floats between molten electrolyte and liquid metal cathode, graphite anode is inserted on molten electrolyte, be 3V, electric current in decomposition voltage
Density is 0.8 ~ 1.0A/cm2Under the conditions of be electrolysed 4h, indium stannum alloy is obtained inside liquid metal cathode.
2. the method according to claim 1 for being recycled thick indium from useless ITO powder using melten salt electriochemistry method, feature are existed
In：Useless ITO powder and poly-vinyl alcohol solution mass ratio are 8 ~ 9 in the step 1：0.8~1.2.
3. the method according to claim 1 for being recycled thick indium from useless ITO powder using melten salt electriochemistry method, feature are existed
In：Electrolyte is molar ratio 58.2 in the step 3：41.8 lithium chloride and potassium chloride mixed electrolyte.
4. the method according to claim 1 for being recycled thick indium from useless ITO powder using melten salt electriochemistry method, feature are existed
In：Liquid metal cathode is liquid metal indium or tin in the step 3.
5. the method according to claim 1 for being recycled thick indium from useless ITO powder using melten salt electriochemistry method, feature are existed
In：Add the sintered material of a piece of step 2 during the step 3 into molten electrolyte every 15min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810528444.0A CN108754544A (en) | 2018-05-29 | 2018-05-29 | A method of using melten salt electriochemistry method thick indium is recycled from useless ITO powder |
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| CN201810528444.0A CN108754544A (en) | 2018-05-29 | 2018-05-29 | A method of using melten salt electriochemistry method thick indium is recycled from useless ITO powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349948A (en) * | 2020-02-27 | 2020-06-30 | 郑州大学 | Electrochemical method for recovering indium-gallium-zinc alloy from indium-gallium-zinc oxide |
| CN112281190A (en) * | 2020-10-12 | 2021-01-29 | 郑州大学 | Electrochemical method for preparing molybdenum metal by utilizing molybdenum disulfide |
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| CN200952043Y (en) * | 2006-09-27 | 2007-09-26 | 任永红 | Liquid cathode electrolytic tank for electrolytic production rare earth metal and alloy thereof |
| CN103590072A (en) * | 2013-10-17 | 2014-02-19 | 清远先导材料有限公司 | Preparation method of high-purity indium |
| JP2015148008A (en) * | 2014-02-08 | 2015-08-20 | 栄次 金谷 | Recovery system of high purity metal from conductive oxide |
| CN106978612A (en) * | 2017-03-16 | 2017-07-25 | 广东省稀有金属研究所 | A kind of metallurgical method of metallic compound |
| CN107475752A (en) * | 2017-08-31 | 2017-12-15 | 中南大学 | Clean metallurgy method and device for low-temperature molten salt electrolysis of tin dross |
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2018
- 2018-05-29 CN CN201810528444.0A patent/CN108754544A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952043Y (en) * | 2006-09-27 | 2007-09-26 | 任永红 | Liquid cathode electrolytic tank for electrolytic production rare earth metal and alloy thereof |
| CN103590072A (en) * | 2013-10-17 | 2014-02-19 | 清远先导材料有限公司 | Preparation method of high-purity indium |
| JP2015148008A (en) * | 2014-02-08 | 2015-08-20 | 栄次 金谷 | Recovery system of high purity metal from conductive oxide |
| CN106978612A (en) * | 2017-03-16 | 2017-07-25 | 广东省稀有金属研究所 | A kind of metallurgical method of metallic compound |
| CN107475752A (en) * | 2017-08-31 | 2017-12-15 | 中南大学 | Clean metallurgy method and device for low-temperature molten salt electrolysis of tin dross |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349948A (en) * | 2020-02-27 | 2020-06-30 | 郑州大学 | Electrochemical method for recovering indium-gallium-zinc alloy from indium-gallium-zinc oxide |
| CN112281190A (en) * | 2020-10-12 | 2021-01-29 | 郑州大学 | Electrochemical method for preparing molybdenum metal by utilizing molybdenum disulfide |
| CN112281190B (en) * | 2020-10-12 | 2021-11-05 | 郑州大学 | Electrochemical method for preparing molybdenum metal by utilizing molybdenum disulfide |
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