CN106916955A - A kind of method of valuable metal in selective recovery lithium ion cell anode waste - Google Patents

A kind of method of valuable metal in selective recovery lithium ion cell anode waste Download PDF

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CN106916955A
CN106916955A CN201710207790.4A CN201710207790A CN106916955A CN 106916955 A CN106916955 A CN 106916955A CN 201710207790 A CN201710207790 A CN 201710207790A CN 106916955 A CN106916955 A CN 106916955A
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lithium ion
cobalt
lithium
anode waste
electrodeposition
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吴理觉
文定强
李文津
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Qingyuan New Materials Research Institute Co Ltd
Guangdong Jiana Energy Technology Co Ltd
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Qingyuan New Materials Research Institute Co Ltd
Guangdong Jiana Energy Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006Wet processes
    • C22B7/007Wet processes by acid leaching
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00Obtaining nickel or cobalt
    • C22B23/04Obtaining nickel or cobalt by wet processes
    • C22B23/0407Leaching processes
    • C22B23/0415Leaching processes with acids or salt solutions except ammonium salts solutions
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10Obtaining alkali metals
    • C22B26/12Obtaining lithium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B47/00Obtaining manganese
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/06Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • C25C1/08Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/06Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • C25C1/10Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of chromium or manganese
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/54Reclaiming serviceable parts of waste accumulators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/84Recycling of batteries or fuel cells

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
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Abstract

The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, comprise the following steps:Comprise the following steps:(1)Pretreatment,(2)Reduction acidleach,(3)Eddy flow electrodeposition nickel cobalt mixed powder,(4)Eddy flow electrodeposition manganese,(5)Lithium carbonate is precipitated.There is process is simple in selective recovery lithium ion cell anode waste of the invention, the characteristics of processing cost is low and selectively high to valuable metal recovery.

Description

A kind of method of valuable metal in selective recovery lithium ion cell anode waste
Technical field
The present invention relates to novel energy resource material technology field, in particularly a kind of selective recovery lithium ion cell anode waste The method of valuable metal.
Background technology
With extensive use of the lithium ion battery on power vehicle and energy storage material, the yield and demand of lithium ion battery Amount will constantly increase severely, and from 2005 to 2015, the global annual production of lithium ion battery increased 1200%.And lithium from Sub- battery is just constantly used in frontier, and its demand can still be increased considerably for 10 years in future.South Korea in 2017, Japan and The lithium ion battery yield of China will account for more than the 90% of global yield.At present, China has become the maximum of lithium ion battery One of production, consumption and exported country.
Due to electronic product update speed it is more and more faster, in addition lithium ion battery life-span typically only 1~3 Year, therefore, the waste material produced in the coming years will produce substantial amounts of waste lithium ion and its manufacture cell process. And containing valuable metals such as nickel, cobalt, manganese, lithium, copper and aluminium in these discarded objects, wherein nickel cobalt manganese is considered as strategy metal, Occupied an important position in following sustainable material and technology.The supply and demand of the metal needed for current these lithium ion batteries production Contradiction is increasingly protruded in China.Therefore, if valuable metal that can be in selective recovery waste and old lithium ion battery, not only It can be avoided to environment and the risk of human health, and the metal for substituting can be provided for each metal industry, reduced to state The interdependency of outer metals resources, promotes sustainable development and the industrial upgrading of lithium ion battery industry.
Conventional anode material for lithium-ion batteries mainly has cobalt acid lithium, lithium nickelate, LiMn2O4, nickel cobalt manganese three in the market First positive electrode and LiFePO4 etc..For the recovery of such as Ni, Co, the Mn of valuable metal in positive electrode, study both at home and abroad. The method being widely used at present be by anode waste active material be added in sulfuric acid, nitric acid, hydrochloric acid and using hydrogen peroxide as Reducing agent, leaches to the valuable metal in anode waste first;Then the separation of valuable metal is carried out by extraction, or again Various valuable metals are made to reach the effect being separately recovered by adding various precipitating reagents.So will necessarily result in the increasing of cost recovery Plus extend with process cycle.
As the A of Chinese invention patent CN 106169624 disclose a kind of lithium ion battery ternary material recovery method, wherein Propose anode pole piece through peracid is molten, regulation pH, sintering obtains MnO after oxidizerx/ C composite, add ammonium oxalate after Sintering obtains NiO/Co3O4Mixing material, it is eventually adding NaCO3 and obtains lithium carbonate.This method is divided again by separating valuable metals Do not reclaim, not only need a large amount of supplementary product onsumptions, and reaction time is more long.
The wet recycle recovery lithium ion cell anode waste being related at present can be separately recovered and utilize valuable metal, again Lithium salts and other metal ions are obtained, but it is not strong to be primarily due to be separately recovered the selectivity of valuable metal, it is therefore desirable to it is cumbersome Removal of impurities operation just can guarantee that the purity of product, and this can cause auxiliary material consumption big, and long processing period, processing cost are higher etc. Shortcoming limits the value of large-batch industrial.And because the specific aim of recovery method is too strong, reclaims product and be only used for weight It is new to use in the field of synthesizing lithium ion battery, cause current recovery method restricted too big.
The content of the invention
Main purpose of the invention there are provided valuable gold in a kind of selective recovery lithium ion cell anode waste The method of category, with process is simple, processing cost is low and selectively high to valuable metal recovery the characteristics of.
The present invention can be achieved through the following technical solutions:
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, institute Lithium ion battery is stated for nickle cobalt lithium manganate battery, cobalt acid lithium battery, lithium manganate battery, lithium nickelate battery and/or iron manganese phosphate for lithium One or more mixing of battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:3-6 additions 0.5-5mol/L's is sour molten Liquid, reducing agent is added according to 1-4 times of cobalt nickel manganese total mole number, and lower stirring reaction 2-4 hours at 30-90 °C, speed of agitator is 100-500r/min, then carries out separation of solid and liquid, obtains the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 2.0-5.0, using eddy flow electricity Product technology therefrom carries out electrodeposition, and current density is 300-600A/m2, electrolytic deposition process is not heated, when the concentration of nickel and cobalt is below After 0.5g/L, stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid;
(4)Eddy flow electrodeposition manganese, only works as step(1)In lithium ion battery for lithium manganate battery, nickle cobalt lithium manganate battery or comprising This step operation is carried out when lithium manganate battery, nickle cobalt lithium manganate battery, in step(3)In first deposition liquid in keep electric current it is close Degree, after the concentration of manganese is less than 0.5g/L, stops electrodeposition, carries out separation of solid and liquid, collects electrodeposition manganese and the second filtrate;
(5)Lithium carbonate is precipitated, by step(3)First deposition liquid or step(4)In the second filtrate using precipitating reagent adjust pH Value, obtains lithium carbonate.
Further, step(1)Middle particle diameter≤100 micron by broken anode waste.
Further, step(2)Described in acid solution be one or more in sulfuric acid, hydrochloric acid, and/or nitric acid Mixed solution.
Further, the reducing agent is the one kind in hydrogen peroxide, oxalic acid, sodium pyrosulfite, sulfur dioxide or hydrazine hydrate Or two or more mixtures.
Further, step(3)Described in nickel cobalt mixed powder be nickel powder and cobalt powder mixture, eddy flow electrodeposition nickel cobalt end Point is below 0.1g/L for the concentration of cobalt ions and nickel ion.
Further, step(4)Described in eddy flow electrodeposition manganese terminal for manganese ion concentration be less than 0.1g/L.
Further, step(5)In, the precipitating reagent is ammonium hydrogen carbonate and/or sodium carbonate, the endpoint pH of precipitation process It is 9-12.
The method of valuable metal has following beneficial technology in selective recovery lithium ion cell anode waste of the present invention Effect:
The mode of Whote-wet method is employed in the present invention, there is provided a kind of circulation and stress lithium ion cell anode waste of high selectivity Method, eddy flow electrodeposition is prepared for nickel cobalt powder, electrolytic manganese, lithium carbonate product, reduce removal of impurities during recycling and The processing cost of high energy consumption, improves the quality of product, and is separately recovered the demand that valuable metal more meets market.And positive pole Waste material can come from useless pole piece and leftover pieces in the positive electrode, or cell fabrication processes of scrap lithium ion battery or The waste material and leftover pieces produced during production tertiary cathode material, effectively reduce its manufacturing cost.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and to this Invention product is described in further detail.
Embodiment 1
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, pass through Particle diameter≤100 micron of broken anode waste are crossed, the lithium ion battery is nickle cobalt lithium manganate battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:6 add 2.75mol/L with sulfuric acid group Into acid solution, the reducing agent being made up of hydrogen peroxide is added according to 1 times of cobalt nickel manganese total mole number, in 90 °C of lower stirring reactions 3 Hour, speed of agitator is 100r/min, then carries out separation of solid and liquid, obtains the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 5.0, using eddy flow electrodeposition skill Art therefrom carries out electrodeposition, and current density is 450A/m2, electrolytic deposition process is not heated, after the concentration of nickel and cobalt is below 0.5g/L, Stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid.In this step, institute It is nickel powder and the mixture of cobalt powder to state nickel cobalt mixed powder, and eddy flow electrodeposition nickel cobalt terminal is low for the concentration of cobalt ions and nickel ion In 0.1g/L;The terminal of the eddy flow electrodeposition manganese is less than 0.1g/L for the concentration of manganese ion.
(4)Eddy flow electrodeposition manganese, in step(3)In first deposition liquid in keep current density, when the concentration of manganese is less than After 0.1g/L, stop electrodeposition, carry out separation of solid and liquid, collect electrodeposition manganese and the second filtrate;
(5)Lithium carbonate is precipitated, will be rapid(4)In the second filtrate using precipitating reagent adjust pH value, obtain lithium carbonate.In this step In, the precipitating reagent is ammonium hydrogen carbonate, and the endpoint pH of precipitation process is 9.
Embodiment 2
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, pass through Particle diameter≤100 micron of broken anode waste are crossed, the lithium ion battery is nickle cobalt lithium manganate battery, cobalt acid lithium battery and manganese Acid lithium battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:4.5 add 0.5mol/L with hydrochloric acid group Into acid solution, add oxalic acid as reducing agent according to 4 times of cobalt nickel manganese total mole number, in 35 °C of lower stirring reactions 2 hours, stir Mix rotating speed is 500r/min, then carries out separation of solid and liquid, obtains the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 3.5, using eddy flow electrodeposition skill Art therefrom carries out electrodeposition, and current density is 300A/m2, electrolytic deposition process is not heated, after the concentration of nickel and cobalt is below 0.1g/L, Stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid.In this step, institute It is nickel powder and the mixture of cobalt powder to state nickel cobalt mixed powder.
(4)Eddy flow electrodeposition manganese, in step(3)In first deposition liquid in keep current density, when the concentration of manganese is less than After 0.1g/L, stop electrodeposition, carry out separation of solid and liquid, collect electrodeposition manganese and the second filtrate;
(5)Lithium carbonate is precipitated, by step(4)In the second filtrate using precipitating reagent adjust pH value, obtain lithium carbonate.In this step In, the precipitating reagent is sodium carbonate, and the endpoint pH of precipitation process is 12.
Embodiment 3
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, pass through Particle diameter≤100 micron of broken anode waste are crossed, the lithium ion battery is cobalt acid lithium battery and lithium nickelate battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:What 3 addition 5mol/L were constituted with nitric acid Acid solution, the reducing agent constituted with sodium pyrosulfite is added according to 2.5 times of cobalt nickel manganese total mole number, in 90 °C of lower stirring reactions 3 hours, speed of agitator was 100r/min, then carried out separation of solid and liquid, obtained the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 5.0, using eddy flow electrodeposition skill Art therefrom carries out electrodeposition, and current density is 450A/m2, electrolytic deposition process is not heated, after the concentration of nickel and cobalt is below 0.5g/L, Stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid.In this step, institute It is nickel powder and the mixture of cobalt powder to state nickel cobalt mixed powder, and eddy flow electrodeposition nickel cobalt terminal is low for the concentration of cobalt ions and nickel ion In 0.1g/L.
(4)Lithium carbonate is precipitated, by step(3)First deposition liquid using precipitating reagent adjust pH value, obtain lithium carbonate.Herein In step, the precipitating reagent is ammonium hydrogen carbonate and sodium carbonate, and the endpoint pH of precipitation process is 11.
Embodiment 4
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, pass through Particle diameter≤100 micron of broken anode waste are crossed, the lithium ion battery is cobalt acid lithium battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:5 add 4mol/L with sulfuric acid, hydrochloric acid and The acid solution of nitric acid composition, adds with hydrogen peroxide, oxalic acid, sodium pyrosulfite and hydrazine hydrate according to 3 times of cobalt nickel manganese total mole number The reducing agent of composition, in 70 °C of lower stirring reactions 2.4 hours, speed of agitator was 200r/min, then carries out separation of solid and liquid, is obtained First filtrate and filter residue;
(3)Eddy flow electrodeposition cobalt powder, rate-determining steps(2)In the first filtrate pH value be 3.0, therefrom entered using eddy flow electrodeposition technology Row electrodeposition, current density is 400A/m2, electrolytic deposition process is not heated, and after the concentration of nickel and cobalt is below 0.5g/L, stops electricity Product, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtains the first deposition liquid.In this step, the cobalt powder Expect to be cobalt powder, eddy flow electrodeposition cobalt powder terminal is less than 0.1g/L for the concentration of cobalt ions.
(4)Lithium carbonate is precipitated, by step(3)First deposition liquid using precipitating reagent adjust pH value, obtain lithium carbonate.Herein In step, the precipitating reagent is ammonium hydrogen carbonate and sodium carbonate, and the endpoint pH of precipitation process is 9.
Embodiment 5
The invention discloses a kind of method of valuable metal in selective recovery lithium ion cell anode waste, including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, pass through Particle diameter≤100 micron of broken anode waste are crossed, the lithium ion battery is cobalt acid lithium battery, lithium manganate battery and manganese phosphate Lithium iron battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:4 add 3mol/L with sulfuric acid, hydrochloric acid and The acid solution of nitric acid composition, adds with hydrogen peroxide, oxalic acid, sodium pyrosulfite, sulfur dioxide according to 2 times of cobalt nickel manganese total mole number The reducing agent constituted with hydrazine hydrate, in 40 °C of lower stirring reactions 3 hours, speed of agitator was 200r/min, then carries out solid-liquid point From obtaining the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 3.0, using eddy flow electrodeposition skill Art therefrom carries out electrodeposition, and current density is 550A/m2, electrolytic deposition process is not heated, after the concentration of nickel and cobalt is below 0.1g/L, Stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid.In this step, institute It is nickel powder and the mixture of cobalt powder to state nickel cobalt mixed powder.
(4)Eddy flow electrodeposition manganese, in step(3)In first deposition liquid in keep current density, when the concentration of manganese is less than After 0.5g/L, stop electrodeposition, carry out separation of solid and liquid, collect electrodeposition manganese and the second filtrate;
(5)Lithium carbonate is precipitated, by step(4)The second filtrate using precipitating reagent adjust pH value, obtain lithium carbonate.In this step In, the precipitating reagent is ammonium hydrogen carbonate and sodium carbonate, and the endpoint pH of precipitation process is 11.
In the present invention, the selective current potential of different valuable metals is as shown in the table, and valuable metal recovery has been effectively ensured Selectivity is higher, with preferable Selective Separation, recycle prospect.
Metal Co2+/Co Ni2+/Ni Mn2+/Mn Cu2+/Cu Fe3+/Fe2+ Al3+/Al Li+/Li
/V -0.277 -0.257 -1.17 0.35 0.77 -1.67 -3.04
The above, only presently preferred embodiments of the present invention not makees any formal limitation to the present invention;It is all The those of ordinary skill of the industry can shown in by specification and the above and swimmingly implement the present invention;But, it is all to be familiar with Professional and technical personnel without departing from the scope of the present invention, makes using disclosed above technology contents A little variation, modification and evolution equivalent variations, be Equivalent embodiments of the invention;Meanwhile, it is all according to reality of the invention Variation, modification and evolution of any equivalent variations that matter technology is made to above example etc., still fall within technology of the invention Within the protection domain of scheme.

Claims (7)

1. in a kind of selective recovery lithium ion cell anode waste valuable metal method, it is characterised in that including following step Suddenly:
(1)Pretreatment:Disassemble waste and old lithium ion battery to take out positive plate and crush, obtain lithium ion cell anode waste, institute Lithium ion battery is stated for nickle cobalt lithium manganate battery, cobalt acid lithium battery, lithium manganate battery, lithium nickelate battery and/or iron manganese phosphate for lithium One or more mixing of battery;
(2)Reduction acidleach:In step(1)In the anode waste that obtains according to solid-to-liquid ratio 1:3-6 additions 0.5-5mol/L's is sour molten Liquid, reducing agent is added according to 1-4 times of cobalt nickel manganese total mole number, and lower stirring reaction 2-4 hours at 30-90 °C, speed of agitator is 100-500r/min, then carries out separation of solid and liquid, obtains the first filtrate and filter residue;
(3)Eddy flow electrodeposition nickel cobalt mixed powder, rate-determining steps(2)In the first filtrate pH value be 2.0-5.0, using eddy flow electricity Product technology therefrom carries out electrodeposition, and current density is 300-600A/m2, electrolytic deposition process is not heated, when the concentration of nickel and cobalt is below After 0.5g/L, stop electrodeposition, the collection of electrodeposition nickel cobalt mixed powder is carried out using magnetic means, obtain the first deposition liquid;
(4)Eddy flow electrodeposition manganese, only works as step(1)In lithium ion battery for lithium manganate battery, nickle cobalt lithium manganate battery or comprising This step operation is carried out when lithium manganate battery, nickle cobalt lithium manganate battery, in step(3)In first deposition liquid in keep electric current it is close Degree, after the concentration of manganese is less than 0.5g/L, stops electrodeposition, carries out separation of solid and liquid, collects electrodeposition manganese and the second filtrate;
(5)Lithium carbonate is precipitated, by step(3)First deposition liquid or step(4)In the second filtrate using precipitating reagent adjust pH Value, obtains lithium carbonate.
2. in selective recovery lithium ion cell anode waste according to claim 1 valuable metal method, its feature It is:Step(1)Middle particle diameter≤100 micron by broken anode waste.
3. in selective recovery lithium ion cell anode waste according to claim 1 and 2 valuable metal method, it is special Levy and be:Step(2)Described in acid solution for one or more the mixing in sulfuric acid, hydrochloric acid, and/or nitric acid it is molten Liquid.
4. in selective recovery lithium ion cell anode waste according to claim 3 valuable metal method, its feature It is:The reducing agent be hydrogen peroxide, oxalic acid, sodium pyrosulfite, sulfur dioxide or hydrazine hydrate in one or more Mixture.
5. in selective recovery lithium ion cell anode waste according to claim 4 valuable metal method, its feature It is:Step(3)Described in nickel cobalt mixed powder be nickel powder and cobalt powder mixture, further, eddy flow electrodeposition nickel cobalt terminal For the concentration of cobalt ions and nickel ion is below 0.1g/L.
6. in selective recovery lithium ion cell anode waste according to claim 4 valuable metal method, its feature It is:Step(4)Described in eddy flow electrodeposition manganese terminal for manganese ion concentration be less than 0.1g/L.
7. in the selective recovery lithium ion cell anode waste according to claim 5 or 6 valuable metal method, it is special Levy and be:Step(5)In, the precipitating reagent is ammonium hydrogen carbonate and/or sodium carbonate, and the endpoint pH of precipitation process is 9-12.
CN201710207790.4A 2017-03-31 2017-03-31 A kind of method of valuable metal in selective recovery lithium ion cell anode waste Pending CN106916955A (en)

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Cited By (12)

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CN108384955A (en) * 2018-03-20 2018-08-10 中国科学院过程工程研究所 A method of from selectively carrying lithium in waste material containing lithium battery
CN108470951A (en) * 2018-03-09 2018-08-31 中南大学 The recovery method of valuable metal in a kind of waste and old nickel-cobalt-manganese ternary lithium ion battery
CN109439904A (en) * 2018-09-20 2019-03-08 广东佳纳能源科技有限公司 A method of the leaching valuable metal from waste lithium cell positive electrode
CN109585962A (en) * 2018-11-30 2019-04-05 成都尤尼瑞克科技有限公司 A kind of method of the waste and old positive electrode of resource utilization lithium battery
CN110257631A (en) * 2019-06-14 2019-09-20 广西师范大学 A kind of method of lithium and other metals in separating waste, worn lithium ion cell positive
CN110629034A (en) * 2019-09-16 2019-12-31 厦门钨业股份有限公司 Method for recovering cobalt and nickel from tungsten waste recovery slag
CN111118297A (en) * 2019-06-11 2020-05-08 中国科学院过程工程研究所 Method and device for selectively extracting lithium
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CN114132909A (en) * 2021-12-07 2022-03-04 自贡同发荣新材料有限公司 Method for recycling pure metal salt from retired manganese iron phosphate lithium battery waste
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CN108470951A (en) * 2018-03-09 2018-08-31 中南大学 The recovery method of valuable metal in a kind of waste and old nickel-cobalt-manganese ternary lithium ion battery
CN108384955A (en) * 2018-03-20 2018-08-10 中国科学院过程工程研究所 A method of from selectively carrying lithium in waste material containing lithium battery
CN109439904A (en) * 2018-09-20 2019-03-08 广东佳纳能源科技有限公司 A method of the leaching valuable metal from waste lithium cell positive electrode
CN109585962A (en) * 2018-11-30 2019-04-05 成都尤尼瑞克科技有限公司 A kind of method of the waste and old positive electrode of resource utilization lithium battery
CN111118297A (en) * 2019-06-11 2020-05-08 中国科学院过程工程研究所 Method and device for selectively extracting lithium
CN110257631A (en) * 2019-06-14 2019-09-20 广西师范大学 A kind of method of lithium and other metals in separating waste, worn lithium ion cell positive
CN110629034A (en) * 2019-09-16 2019-12-31 厦门钨业股份有限公司 Method for recovering cobalt and nickel from tungsten waste recovery slag
CN111519031A (en) * 2020-04-29 2020-08-11 江苏北矿金属循环利用科技有限公司 Method for recycling nickel, cobalt, manganese and lithium from waste power lithium ion battery black powder
CN112054261A (en) * 2020-07-28 2020-12-08 昆明理工大学 Method for recovering waste lithium battery positive electrode through mechanical activation assisted spray pyrolysis
CN112054261B (en) * 2020-07-28 2021-10-08 昆明理工大学 Method for recovering waste lithium battery positive electrode through mechanical activation assisted spray pyrolysis
CN112251776A (en) * 2020-10-22 2021-01-22 中钢集团南京新材料研究院有限公司 Method for recovering metal from waste lithium battery positive electrode material
CN114132909A (en) * 2021-12-07 2022-03-04 自贡同发荣新材料有限公司 Method for recycling pure metal salt from retired manganese iron phosphate lithium battery waste
CN115386727A (en) * 2022-07-21 2022-11-25 珠海格力绿色再生资源有限公司 Valuable metal recovery method for lithium battery

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Application publication date: 20170704