CN107834084A - A kind of method of copper ion in removal V electrolyte - Google Patents
A kind of method of copper ion in removal V electrolyte Download PDFInfo
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- CN107834084A CN107834084A CN201711022536.3A CN201711022536A CN107834084A CN 107834084 A CN107834084 A CN 107834084A CN 201711022536 A CN201711022536 A CN 201711022536A CN 107834084 A CN107834084 A CN 107834084A
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- electrolyte
- copper ion
- sulfide
- copper
- ion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/008—Disposal or recycling of fuel cells
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to battery material field, and in particular to a kind of method for removing copper ion in V electrolyte.The technical problems to be solved by the invention are to provide a kind of method for removing the copper ion in V electrolyte, comprise the following steps：Decoppering agent is added in the V electrolyte of cupric, fully after reaction, filtering, obtains pure V electrolyte；The decoppering agent is at least one of hydrogen sulfide or sulfide.The inventive method can effectively remove the copper in V electrolyte, so as to obtain the stable V electrolyte of character.
Description
Technical field
The invention belongs to battery material field, and in particular to a kind of method for removing copper ion in V electrolyte.
Background technology
In recent years, regenerative resource was widely developed, but by regenerative resource is unstable, intermittent spy
Property limitation, regenerative resource is difficult to effectively utilize.In order to more effectively utilize regenerative resource, people are to large-scale energy storage
The demand of device is more and more stronger.Vanadium cell is because its power output and capacity are separate, and big with power and capacity, circulation makes
With long lifespan, the advantages that energy efficiency is high, and depth charge-discharge performance is good, and security performance is high, it is considered to be most application prospect it
One extensive energy-storage battery, has been to be concerned by more and more people.
Carrier of the V electrolyte as vanadium cell energy storage, is one of critical material of vanadium cell.Run in vanadium cell
During, because V electrolyte is likely to be exposed the component of cupric so that copper corrodes in acid medium, and copper ion is big
Amount is incorporated in electrolyte.In battery During Process of Long-term Operation, copper ion can influence the stable operation of vanadium cell.
At present, remove copper ion in electrolyte of vanadium redox battery and copper ion is mainly reduced to by cuprous ion using reducing agent, then
Precipitating reagent is added, forms cuprous sediment.This method needs copper ion being reduced to cuprous ion, adds technological process,
Process is difficult to control.
The content of the invention
The present invention provides a kind of method for removing copper ion in V electrolyte.This method comprises the following steps：It is electrolysed in vanadium
Decoppering agent is added in liquid, fully after reaction, filtering, obtains pure V electrolyte；The decoppering agent is hydrogen sulfide or sulfide
At least one of.
Wherein, in above-mentioned removal V electrolyte in the method for copper ion, the vanadium concentration of the V electrolyte for 0.5~
5.0mol/L。
Preferably, in above-mentioned removal V electrolyte in the method for copper ion, the sulfide is vulcanized sodium, ammonium sulfide or sulphur
Change at least one of potassium.
Preferably, in above-mentioned removal V electrolyte in the method for copper ion, the reaction temperature is 50~100 DEG C.
Preferably, in above-mentioned removal V electrolyte in the method for copper ion, the reaction time is 0.5~24h.More preferably
For 1~5h.
Preferably, in above-mentioned removal V electrolyte in the method for copper ion, pending amount of copper is with adding in the V electrolyte
The mol ratio of the decoppering agent entered is 1 ︰ 1~5.
The inventive method is raw material using cupric waste electrolyte, suitable decoppering agent is selected, using the precipitation method, technological process
Simply, operation is easy, can effectively reduce the content of copper ion in solution, copper removal rate reaches more than 80%.The inventive method consumes
Low, the energy-conserving and environment-protective of energy, the V electrolyte character after processing are stable.
Embodiment
Embodiment 1
To the V electrolyte that known vanadium ion concentration is 2.5mol/L cuprics, it is 1.5g/L to determine its content of copper ion.Take
1000ml V electrolytes, add decoppering agent vulcanized sodium 2.0g, and reaction temperature is 80 DEG C, after the completion of reaction, filtering precipitate.It is logical
It is 80mg/L to cross content of copper ion in ICP measure filtrates, and copper removal rate is 94.67%.
Embodiment 2
To the V electrolyte that known vanadium ion concentration is 3.0mol/L cuprics, it is 1.0g/L to determine its content of copper ion.Take
1000ml V electrolytes, add decoppering agent potassium sulfide 2.5g, and reaction temperature is 70 DEG C, after the completion of reaction, filtering precipitate.It is logical
It is 60mg/L to cross content of copper ion in ICP measure filtrates, and copper removal rate is 94.0%.
Embodiment 3
To the V electrolyte that known vanadium ion concentration is 1.5mol/L cuprics, it is 0.8g/L to determine its content of copper ion.Take
1000ml V electrolytes, add decoppering agent ammonium sulfide 1.0g, and reaction temperature is 90 DEG C, after the completion of reaction, filtering precipitate.It is logical
It is 50mg/L to cross content of copper ion in ICP measure filtrates, and copper removal rate is 93.75%.
Embodiment 4
To the V electrolyte that known vanadium ion concentration is 1.0mol/L cuprics, it is 0.5g/L to determine its content of copper ion.Take
1000ml V electrolytes, add decoppering agent hydrogen sulfide 1.0g, and reaction temperature is 85 DEG C, after the completion of reaction, filtering precipitate.It is logical
It is 60mg/L to cross content of copper ion in ICP measure filtrates, and copper removal rate is 88.0%.
Claims (7)
1. remove the method for copper ion in V electrolyte, it is characterised in that：Comprise the following steps：Copper removal is added in V electrolyte
After agent, fully reaction, filtering, pure V electrolyte is obtained；The decoppering agent is at least one of hydrogen sulfide or sulfide.
2. the method according to claim 1 for removing copper ion in V electrolyte, it is characterised in that：The V electrolyte
Vanadium concentration is 0.5~5.0mol/L.
3. the method according to claim 1 or 2 for removing copper ion in V electrolyte, it is characterised in that：The sulfide
For at least one of vulcanized sodium, ammonium sulfide or potassium sulfide.
4. the method for removing copper ion in V electrolyte according to any one of claims 1 to 3, it is characterised in that：It is described
Reaction temperature is 50~100 DEG C.
5. the method for removing copper ion in V electrolyte according to any one of claims 1 to 3, it is characterised in that：It is described
Reaction time is 0.5~24h.
6. the method according to claim 5 for removing copper ion in V electrolyte, it is characterised in that：The reaction time is
1~5h.
7. the method for removing copper ion in V electrolyte according to any one of claim 1~6, it is characterised in that：It is described
The mol ratio of decoppering agent of the pending amount of copper with adding is 1 ︰ 1~5 in V electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022536.3A CN107834084A (en) | 2017-10-26 | 2017-10-26 | A kind of method of copper ion in removal V electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022536.3A CN107834084A (en) | 2017-10-26 | 2017-10-26 | A kind of method of copper ion in removal V electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834084A true CN107834084A (en) | 2018-03-23 |
Family
ID=61649766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711022536.3A Pending CN107834084A (en) | 2017-10-26 | 2017-10-26 | A kind of method of copper ion in removal V electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107834084A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022528A (en) * | 2012-12-04 | 2013-04-03 | 中国科学院金属研究所 | Method for cleanly removing copper ions in copper-bearing vanadium solution |
-
2017
- 2017-10-26 CN CN201711022536.3A patent/CN107834084A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022528A (en) * | 2012-12-04 | 2013-04-03 | 中国科学院金属研究所 | Method for cleanly removing copper ions in copper-bearing vanadium solution |
Non-Patent Citations (1)
| Title |
|---|
| 杨明贺等: ""生产回水除杂质（铜）实验研究"", 《科技资讯》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |
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| RJ01 | Rejection of invention patent application after publication |