CN110564978A - operation process for recovering nickel and cobalt in ternary battery material by wet method - Google Patents
operation process for recovering nickel and cobalt in ternary battery material by wet method Download PDFInfo
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- CN110564978A CN110564978A CN201910976148.1A CN201910976148A CN110564978A CN 110564978 A CN110564978 A CN 110564978A CN 201910976148 A CN201910976148 A CN 201910976148A CN 110564978 A CN110564978 A CN 110564978A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/06—Carbonates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/06—Carbonates
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/0423—Halogenated acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working 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
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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
Abstract
the invention discloses an operation process for recovering nickel and cobalt in a ternary battery material by a wet method, which belongs to the technical field of ternary battery material recovery, and comprises the following steps: step one, discharge treatment: the waste ternary battery before disassembly is subjected to discharge treatment by an electrolyte solution soaking method so as to eliminate potential safety hazards of residual electricity; step two, dealuminizing pretreatment; step three, acid leaching with inorganic acid; step four, removing impurities from copper, aluminum and iron; step five, extracting and recovering cobalt and nickel; step six, obtaining a cobalt-nickel product; and the third step and the fourth step are carried out in a strengthening reaction device, so that the working procedure time of the operation can be shortened by fifty percent, the recovery rate of nickel and cobalt in the ternary battery material is greatly improved, the influence of impurities on the recovery of nickel and cobalt can be greatly reduced, the recovery rate of cobalt and nickel metal is improved, the recovery capacity of enterprises can be enhanced, the waste of resources is greatly reduced, and the environmental protection and sustainable development are facilitated.
Description
Technical Field
the invention relates to the technical field of ternary battery material recovery, in particular to an operation process for recovering nickel and cobalt in a ternary battery material by a wet method.
Background
The power battery is pulled by the growth of a new energy automobile to grow at a high speed, the first power battery retirement tide is expected to come, and the recycling market scale of various lithium batteries reaches 156 hundred million in 2020. The ternary material battery suitable for passenger vehicles has wider market space for recycling, and the lithium ion power battery commonly used at present can be divided into two types according to a positive electrode material system, wherein one type is a ternary material battery, and the other type is a lithium iron phosphate battery. The ternary battery material contains valuable metals such as nickel and cobalt and the like, and the content of the valuable metals is higher than that of natural ores.
Nickel and cobalt are important strategic metal elements with huge consumption and extremely short resources in China, particularly cobalt, the reserve of the cobalt which is proved and can be economically exploited in China is only 4 ten thousand tons, and more than 90 percent of cobalt is imported from other countries such as Congo (gold) in Africa. In 2016, 2.7 ten thousand tons of nickel (accounting for 3 percent of the total nickel dosage in China) and 3.67 ten thousand tons of cobalt (accounting for 79.8 percent of the total cobalt dosage in China) are used in the battery industry in China. In the morning, the key technical problem of recycling the lithium ion power battery, namely the new energy automobile, is discussed in science commission of Beijing city. Since 11 thousands of electric vehicles are already available in Beijing by 2016, the recycling of new energy vehicle power batteries is imminent according to the 3-5 year life of the lithium ion power batteries. In addition, the oil refining industry produces tens of thousands of tons of waste nickel cobalt catalysts each year. Obviously, the development of the clean recovery and high-value utilization of waste nickel cobalt resources has very important significance.
in the prior art, a scheme of extracting nickel and cobalt by hydrometallurgy is generally adopted to recover battery materials, the scheme has high metal recovery rate and great economic benefit, but in actual operation, the time wasted by process operation is long, the rate of recovering cobalt and nickel is greatly influenced, the yield is not favorably improved, meanwhile, the recovery rate of cobalt and nickel is influenced due to harsh back extraction conditions of aluminum in the battery materials, and the recovery efficiency cannot be improved due to single impurity removal.
Disclosure of Invention
1. technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an operation process for recovering nickel and cobalt in a ternary battery material by a wet method, which can shorten the operation process time by fifty percent, greatly improve the recovery rate of nickel and cobalt in the ternary battery material, greatly reduce the influence of impurities on the recovery of nickel and cobalt, and improve the recovery rate of cobalt and nickel metal, thereby enhancing the recovery capacity of enterprises, greatly reducing the waste of resources, and being beneficial to the environmental protection and sustainable development.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An operation process for recovering nickel and cobalt in a ternary battery material by a wet method comprises the following steps:
step one, discharge treatment: the waste ternary battery before disassembly is subjected to discharge treatment by an electrolyte solution soaking method so as to eliminate potential safety hazards of residual electricity;
Step two, dealuminizing pretreatment: removing aluminum from the positive electrode material of the ternary battery by using a roasting degumming and mechanical screening method to obtain a pre-dealumination material;
Step three, acid leaching with inorganic acid: putting the pre-dealuminized material into a strengthened reaction device, and carrying out acid leaching on the pre-dealuminized material by using inorganic acid leaching solution to obtain a solution with slag;
Step four, removing impurities from copper, aluminum and iron: filtering the solution with the slag by using a filtering method to remove copper, aluminum and iron impurities to obtain a target solution;
Step five, extracting and recovering cobalt and nickel: respectively extracting a cobalt element compound and a nickel element compound in the target solution by a water back extraction method;
and step six, obtaining a cobalt-nickel product, namely further processing the cobalt element compound and the nickel element compound according to the use requirement to obtain the required cobalt-nickel product.
this scheme can realize shortening fifty percent with the process time of operation, promotes the recovery rate of nickel cobalt among the ternary battery material by a wide margin to can reduce impurity influence to nickel cobalt recovery by a wide margin, promote the rate of recovery of cobalt nickel metal, thereby can strengthen the recovery ability of enterprise, reduce the waste of resource by a wide margin, be favorable to the protection and the sustainable development of environment.
further, in the third step, the inorganic acid leaching solution is a high-chlorine leaching solution, and the pH value of the high-chlorine leaching solution is 0.3-0.5, so that most of nickel and cobalt elements can be dissolved.
Furthermore, the strengthening reaction device comprises a reaction container, a motor is arranged at the upper end of the reaction container, a plurality of uniformly distributed support frames are connected between the motor and the reaction container, a rotor rod is connected onto the motor, and a stirring rod is fixedly connected to the lower end of the rotor rod and drives the rotor rod and the stirring rod to rotate through the motor, so that the process of acid leaching of inorganic acid can be stirred, and the acid leaching efficiency can be accelerated.
Further, rotor pole and puddler are hollow structure, and the inside of rotor pole and the inside intercommunication of puddler each other, rotor pole and external intercommunication.
further, the lower extreme of puddler is opened and is dug the air vent that has a plurality of evenly distributed, the upper end of rotor pole is connected with the carbon dioxide air supply, lets in carbon dioxide through the carbon dioxide air supply in to the rotor pole, and the bubbling of carbon dioxide gas can produce the bubble and break in the immersion fluid, not only has the effect of stirring, and partial carbon dioxide dissolves formation carbonic acid in aqueous moreover, has the effect that reduces the pH value.
furthermore, the lower end of the reaction container is connected with a filtering device, the reaction container is communicated with the filtering device, the four-way filtering device is used for completing the steps, the integrated operation is realized, and the process is convenient to simplify.
further, the high-chlorine immersion liquid comprises a hydrogen chloride solution and an ammonium chloride solution, so that ammonium carbonate precipitation in the step five is facilitated.
Further, in the fifth step, the cobalt element compound is cobalt carbonate, and the nickel element compound is nickel carbonate.
Furthermore, polytetrafluoroethylene coatings are coated on the surfaces of the reaction vessel, the rotor rod and the stirring rod, and are stable in property, resistant to high temperature and acid corrosion, easy to clean and capable of greatly reducing the cleaning difficulty.
Furthermore, in the third step, the acid leaching time is 0.5 to 1 hour, so that the acid leaching effect can be ensured.
3. advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) This scheme is through introducing the intensive reaction unit, can realize shortening fifty percent with the process time of operation, promotes the recovery rate of nickel cobalt among the ternary battery material by a wide margin to through twice edulcoration, can reduce the influence that impurity retrieved nickel cobalt by a wide margin, promote the rate of recovery of cobalt nickel metal, thereby can strengthen the recovery ability of enterprise, reduce the waste of resource by a wide margin, be favorable to the protection and the sustainable development of environment.
(2) the strengthening reaction device comprises a reaction container, a motor is arranged at the upper end of the reaction container, a plurality of uniformly distributed support frames are connected between the motor and the reaction container, a rotor rod is connected onto the motor, a stirring rod is fixedly connected to the lower end of the rotor rod, the rotor rod and the stirring rod are driven to rotate through the motor, the process of acid leaching of inorganic acid can be stirred, and the efficiency of acid leaching can be accelerated.
(3) rotor pole and puddler are hollow structure, and the inside of rotor pole communicates each other with the inside of puddler, rotor pole and external intercommunication, the lower extreme of puddler is opened the chisel and is had a plurality of evenly distributed's air vent, the upper end of rotor pole is connected with the carbon dioxide air supply, let in carbon dioxide in to the rotor pole through the carbon dioxide air supply, carbon dioxide gas's drum goes into, can produce the bubble in the immersion fluid and break, not only have the effect of stirring, and partial carbon dioxide dissolves formation carbonic acid in aqueous, the effect that reduces the pH value has.
(4) The surfaces of the reaction container, the rotor rod and the stirring rod are all coated with polytetrafluoroethylene coatings, and the polytetrafluoroethylene coatings are stable in property, resistant to high temperature and acid corrosion, easy to clean and capable of greatly reducing the cleaning difficulty.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural diagram of an enhanced reaction apparatus according to the present invention;
FIG. 3 is a half sectional view of the apparatus for intensifying reaction in accordance with the present invention.
The reference numbers in the figures illustrate:
1 reaction vessel, 2 filter devices, 3 support frames, 4 motors, 5 rotor rods, 6 stirring rods and 7 vent holes.
Detailed Description
the drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
Referring to fig. 1, an operation process for recovering nickel and cobalt from a ternary battery material by a wet method includes the following steps:
Step one, discharge treatment: the waste ternary battery before disassembly is subjected to discharge treatment by an electrolyte solution soaking method so as to eliminate potential safety hazards of residual electricity;
Step two, dealuminizing pretreatment: removing aluminum from the positive electrode material of the ternary battery by using a roasting degumming and mechanical screening method to obtain a pre-dealumination material;
Step three, acid leaching with inorganic acid: putting the pre-dealuminized material into a strengthening reaction device, starting the strengthening reaction device, carrying out acid leaching for 0.5 hour, and carrying out acid leaching on the pre-dealuminized material by using an inorganic acid leaching solution to obtain a solution with slag, wherein the inorganic acid leaching solution is a high-chlorine leaching solution, the pH value of the high-chlorine leaching solution is 0.3, so that most of nickel and cobalt elements can be dissolved, and the high-chlorine leaching solution comprises a hydrogen chloride solution and an ammonium chloride solution, and is convenient for ammonium carbonate precipitation in the fifth step;
Step four, removing impurities from copper, aluminum and iron: filtering the solution with the slag by using a filtering method to remove copper, aluminum and iron impurities to obtain a target solution;
step five, extracting and recovering cobalt and nickel: respectively extracting a cobalt element compound and a nickel element compound in the target solution by a water back extraction method, wherein the cobalt element compound is cobalt carbonate, and the nickel element compound is nickel carbonate;
and step six, obtaining a cobalt-nickel product, namely further processing the cobalt element compound and the nickel element compound according to the use requirement to obtain the required cobalt-nickel product.
Referring to fig. 2-3, the intensified reaction apparatus includes a reaction container 1, a motor 4 is disposed at an upper end of the reaction container 1, a plurality of uniformly distributed support frames 3 are connected between the motor 4 and the reaction container 1, a rotor rod 5 is connected to the motor 4, a stirring rod 6 is fixedly connected to a lower end of the rotor rod 5, the motor 4 drives the rotor rod 5 and the stirring rod 6 to rotate, so that the process of acid leaching of inorganic acid can be stirred, and the efficiency of acid leaching can be increased.
The rotor rod 5 and the stirring rod 6 are both of a hollow structure, the interior of the rotor rod 5 is communicated with the interior of the stirring rod 6, the rotor rod 5 is communicated with the outside, the lower end of the stirring rod 6 is provided with a plurality of uniformly distributed vent holes 7, the upper end of the rotor rod 5 is connected with a carbon dioxide gas source, carbon dioxide is introduced into the rotor rod 5 through a carbon dioxide gas source, bubbles can be generated in the immersion liquid and broken through the bubbling of the carbon dioxide gas, the stirring effect is achieved, and part of the carbon dioxide is dissolved in the water to generate carbonic acid, which has the effect of reducing the PH value, an air valve can be added between the rotor rods 5 of the carbon dioxide gas source, so as to be convenient for controlling the introduction amount and the introduction speed of the carbon dioxide gas, meanwhile, the rotating speed of the rotor rod 5 can be controlled through the controller, the rotor rod 5 can be controlled to rotate at a constant speed, the speed is sixty revolutions per minute, and the rotating speed can be adjusted according to actual conditions.
the lower extreme of reaction vessel 1 is connected with filter equipment 2, and reaction vessel 1 communicates with filter equipment 2, and step cross filter equipment 2 accomplishes, and the integrated operation is convenient for simplify the process, and reaction vessel 1, rotor pole 5 and puddler 6's surface all is scribbled the polytetrafluoroethylene coating, and polytetrafluoroethylene coating nature is stable, high temperature resistant and sour corruption, and easy cleanness simultaneously can reduce the degree of difficulty of clearance by a wide margin.
this scheme is through introducing the intensive reaction unit, can realize shortening forty percent with the process time of operation, promotes the recovery rate of nickel cobalt to 92% in the ternary battery material by a wide margin to through twice edulcoration, can reduce the influence that impurity retrieved nickel cobalt by a wide margin, promote the rate of recovery of cobalt nickel metal, thereby can strengthen the recovery ability of enterprise, reduce the waste of resource by a wide margin, be favorable to the protection and the sustainable development of environment.
example 2:
Referring to fig. 1, an operation process for recovering nickel and cobalt from a ternary battery material by a wet method includes the following steps:
Step one, discharge treatment: the waste ternary battery before disassembly is subjected to discharge treatment by an electrolyte solution soaking method so as to eliminate potential safety hazards of residual electricity;
Step two, dealuminizing pretreatment: removing aluminum from the positive electrode material of the ternary battery by using a roasting degumming and mechanical screening method to obtain a pre-dealumination material;
Step three, acid leaching with inorganic acid: putting the pre-dealuminized material into a strengthening reaction device, starting the strengthening reaction device, carrying out acid leaching on the pre-dealuminized material for 1 hour by using an inorganic acid leaching solution to obtain a solution with slag, wherein the inorganic acid leaching solution is a high-chlorine leaching solution, the pH value of the high-chlorine leaching solution is 0.5, most of nickel and cobalt elements can be dissolved, and the high-chlorine leaching solution comprises a hydrogen chloride solution and an ammonium chloride solution, so that ammonium carbonate precipitation can be conveniently carried out in the fifth step;
step four, removing impurities from copper, aluminum and iron: filtering the solution with the slag by using a filtering method to remove copper, aluminum and iron impurities to obtain a target solution;
Step five, extracting and recovering cobalt and nickel: respectively extracting a cobalt element compound and a nickel element compound in the target solution by a water back extraction method, wherein the cobalt element compound is cobalt carbonate, and the nickel element compound is nickel carbonate;
And step six, obtaining a cobalt-nickel product, namely further processing the cobalt element compound and the nickel element compound according to the use requirement to obtain the required cobalt-nickel product.
Referring to fig. 2-3, the intensified reaction apparatus includes a reaction container 1, a motor 4 is disposed at an upper end of the reaction container 1, a plurality of uniformly distributed support frames 3 are connected between the motor 4 and the reaction container 1, a rotor rod 5 is connected to the motor 4, a stirring rod 6 is fixedly connected to a lower end of the rotor rod 5, the motor 4 drives the rotor rod 5 and the stirring rod 6 to rotate, so that the process of acid leaching of inorganic acid can be stirred, and the efficiency of acid leaching can be increased.
The rotor rod 5 and the stirring rod 6 are both of a hollow structure, the interior of the rotor rod 5 is communicated with the interior of the stirring rod 6, the rotor rod 5 is communicated with the outside, the lower end of the stirring rod 6 is provided with a plurality of uniformly distributed vent holes 7, the upper end of the rotor rod 5 is connected with a carbon dioxide gas source, carbon dioxide is introduced into the rotor rod 5 through a carbon dioxide gas source, bubbles can be generated in the immersion liquid and broken through the bubbling of the carbon dioxide gas, the stirring effect is achieved, and part of the carbon dioxide is dissolved in the water to generate carbonic acid, which has the effect of reducing the PH value, an air valve can be added between the rotor rods 5 of the carbon dioxide gas source, so as to be convenient for controlling the introduction amount and the introduction speed of the carbon dioxide gas, meanwhile, the rotating speed of the rotor rod 5 can be controlled through the controller, the rotor rod 5 can be controlled to rotate at a constant speed, the speed is sixty revolutions per minute, and the rotating speed can be adjusted according to actual conditions.
The lower extreme of reaction vessel 1 is connected with filter equipment 2, and reaction vessel 1 communicates with filter equipment 2, and step cross filter equipment 2 accomplishes, and the integrated operation is convenient for simplify the process, and reaction vessel 1, rotor pole 5 and puddler 6's surface all is scribbled the polytetrafluoroethylene coating, and polytetrafluoroethylene coating nature is stable, high temperature resistant and sour corruption, and easy cleanness simultaneously can reduce the degree of difficulty of clearance by a wide margin.
This scheme is through introducing the intensive reaction unit, can realize shortening fifty percent with the process time of operation, promotes the recovery rate of nickel cobalt among the ternary battery material by a wide margin and promotes to 95% to through twice edulcoration, can reduce the influence that impurity retrieved nickel cobalt by a wide margin, promote the rate of recovery of cobalt nickel metal, thereby can strengthen the recovery ability of enterprise, reduce the waste of resource by a wide margin, be favorable to the protection and the sustainable development of environment.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. An operation process for recovering nickel and cobalt in a ternary battery material by a wet method is characterized by comprising the following steps: the method comprises the following steps:
step one, discharge treatment: the waste ternary battery before disassembly is subjected to discharge treatment by an electrolyte solution soaking method so as to eliminate potential safety hazards of residual electricity;
Step two, dealuminizing pretreatment: removing aluminum from the positive electrode material of the ternary battery by using a roasting degumming and mechanical screening method to obtain a pre-dealumination material;
step three, acid leaching with inorganic acid: putting the pre-dealuminized material into a strengthened reaction device, and carrying out acid leaching on the pre-dealuminized material by using inorganic acid leaching solution to obtain a solution with slag;
Step four, removing impurities from copper, aluminum and iron: filtering the solution with the slag by using a filtering method to remove copper, aluminum and iron impurities to obtain a target solution;
step five, extracting and recovering cobalt and nickel: respectively extracting a cobalt element compound and a nickel element compound in the target solution by a water back extraction method;
And step six, obtaining a cobalt-nickel product, namely further processing the cobalt element compound and the nickel element compound according to the use requirement to obtain the required cobalt-nickel product.
2. the operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 1, is characterized in that: in the third step, the inorganic acid leaching solution is high-chlorine leaching solution, and the pH value of the high-chlorine leaching solution is 0.3-0.5.
3. The operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 1, is characterized in that: the intensified reaction device comprises a reaction container (1), wherein an electric motor (4) is arranged at the upper end of the reaction container (1), a plurality of uniformly distributed support frames (3) are connected between the electric motor (4) and the reaction container (1), a rotor rod (5) is connected onto the electric motor (4), and a stirring rod (6) is fixedly connected to the lower end of the rotor rod (5).
4. The operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 1 or 3, wherein the operation process comprises the following steps: rotor pole (5) and puddler (6) are hollow structure, and the inside of rotor pole (5) and the inside intercommunication of puddler (6), rotor pole (5) and external intercommunication.
5. the operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 4, is characterized in that: the lower end of the stirring rod (6) is provided with a plurality of uniformly distributed vent holes (7), and the upper end of the rotor rod (5) is connected with a carbon dioxide gas source.
6. The operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 3, wherein the operation process comprises the following steps: the lower end of the reaction container (1) is connected with a filtering device (2), the reaction container (1) is communicated with the filtering device (2), and the step four is completed through the filtering device (2).
7. the operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 2, is characterized in that: the high-chlorine immersion liquid comprises a hydrogen chloride solution and an ammonium chloride solution.
8. the operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 1, is characterized in that: in the fifth step, the cobalt element compound is cobalt carbonate, and the nickel element compound is nickel carbonate.
9. The operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 3, wherein the operation process comprises the following steps: the surfaces of the reaction vessel (1), the rotor rod (5) and the stirring rod (6) are all coated with polytetrafluoroethylene coatings.
10. the operation process for recovering nickel and cobalt in the ternary battery material by the wet method according to claim 1, is characterized in that: in the third step, the acid leaching time is 0.5 to 1 hour.
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| CN105063349A (en) * | 2015-08-17 | 2015-11-18 | 长沙矿冶研究院有限责任公司 | Method of leaching copper, cobalt and nickel from smelting alloy |
| CN105907989A (en) * | 2016-07-08 | 2016-08-31 | 长沙理工大学 | Method for recycling cobalt and lithium from waste lithium ion battery material |
| CN107464963A (en) * | 2017-07-27 | 2017-12-12 | 合肥国轩高科动力能源有限公司 | A kind of method that valuable material is efficiently separated from waste lithium cell |
| CN109321746A (en) * | 2018-12-03 | 2019-02-12 | 北京矿冶科技集团有限公司 | A method of nickel is extracted by copper nickel Whote-wet method |
| CN109775766A (en) * | 2018-12-29 | 2019-05-21 | 启东市北新无机化工有限公司 | The fastly recovering of nickel cobalt element in a kind of ternary battery material |
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Application publication date: 20191213 |