CN218101414U - Nickel, cobalt, manganese leach recovery system - Google Patents
Nickel, cobalt, manganese leach recovery system Download PDFInfo
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- CN218101414U CN218101414U CN202221773619.2U CN202221773619U CN218101414U CN 218101414 U CN218101414 U CN 218101414U CN 202221773619 U CN202221773619 U CN 202221773619U CN 218101414 U CN218101414 U CN 218101414U
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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
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- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The utility model discloses a nickel, cobalt and manganese leaching and recovering system, which comprises a pretreatment unit, a lithium separation unit, a nickel separation unit, a cobalt separation unit and a manganese separation unit; the pretreatment unit comprises a rotary kiln, the lithium separation unit comprises a first leaching device and a first filter pressing device which are connected, the nickel separation unit comprises a second leaching device and a second filter pressing device which are connected, the cobalt separation unit comprises a third leaching device and a third filter pressing device which are connected, and the manganese separation unit comprises a first precipitation device and a fourth filter pressing device which are connected; the rotary kiln is connected with the first leaching device, and a slag outlet of the first filter pressing device is connected with the second leaching device; the slag outlet of the second filter pressing device is connected with the third leaching device; and the liquid outlet of the third filter pressing device is connected with the first precipitation device. The utility model discloses can realize nickel, cobalt, manganese element's deep separation in the lithium cell, but serialization production, the separation is high-efficient, easy operation.
Description
Technical Field
The utility model relates to a lithium cell recovery plant technical field specifically is a nickel, cobalt, manganese leach recovery system.
Background
The ternary nickel-cobalt-manganese cathode material is an important lithium ion battery material, has the important advantages of high energy density, good stability, high safety and the like, and can cause environmental pollution and resource waste if the ternary nickel-cobalt-manganese cathode material is not properly disposed after the lithium ion battery is retired. The nickel-cobalt-manganese ternary lithium battery contains a large amount of valuable metals such as lithium, cobalt, manganese and the like, and compared with the mined ore, the valuable metals are high in content and few in impurities, so that the nickel-cobalt-manganese ternary lithium battery has a high recovery value.
The existing wet recovery of waste batteries mainly separates and enriches valuable metal components in the waste lithium ion batteries by means of a hydrometallurgical method to obtain products such as metal soluble salt or precipitate, and has the advantages of low investment, flexible production, high metal recovery rate and the like. Chinese patent publication No. CN209200111U discloses a resource recovery system for a lithium battery cathode material, which includes a first anticorrosion reaction tank, a first filter press, an MVR evaporator, a first crystallizer, a first centrifuge, a second crystallizer, and a second centrifuge that are sequentially communicated, the first anticorrosion reaction tank is communicated with the first filter press, a filtrate outlet of the first filter press is provided with two passages, one passage is sequentially communicated with the MVR evaporator, the first crystallizer, and the first centrifuge, and the other passage is sequentially communicated with the second crystallizer and the second centrifuge. The first crystal obtained by the technical scheme is a lithium carbonate crystal which can be used as a raw material for producing lithium carbonate or lithium hydroxide, and the second crystal is a mixture of nickel, cobalt and manganese. However, the system cannot further separate and recover the nickel-cobalt-manganese compound, so the application is very limited. The utility model discloses aim at developing a nickel, cobalt, manganese leach recovery system to nickel, cobalt, manganese in to old and useless battery are retrieved respectively, with better satisfying the actual production needs.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide a nickel, cobalt and manganese leaching and recovering system to solve the defects in the background technology.
The utility model discloses the technical problem who solves adopts following technical scheme to realize:
a nickel, cobalt and manganese leaching and recovering system,
comprises a pretreatment unit, a lithium separation unit, a nickel separation unit, a cobalt separation unit and a manganese separation unit;
the pretreatment unit comprises a rotary kiln, the lithium separation unit comprises a first leaching device and a first filter pressing device which are connected, the nickel separation unit comprises a second leaching device and a second filter pressing device which are connected, the cobalt separation unit comprises a third leaching device and a third filter pressing device which are connected, and the manganese separation unit comprises a first precipitation device and a fourth filter pressing device which are connected;
the rotary kiln is connected with the first leaching device, and a slag outlet of the first filter pressing device is connected with the second leaching device; the slag outlet of the second filter pressing device is connected with the third leaching device; and the liquid outlet of the third filter pressing device is connected with the first precipitation device.
In the utility model, the rotary kiln is connected with an inert gas conveying pipe.
In the utility model, the first leaching device is a first leaching tank which is connected with a lithium leaching agent conveying pipe; the second leaching device is a second leaching tank, and the second leaching tank is connected with a nickel leaching agent conveying pipe; the third leaching device is a third leaching tank which is connected with a manganese leaching agent conveying pipe.
The utility model discloses in, fourth filter pressing device's liquid outlet through the pH adjusting tank with the third leaches the jar and connects.
The utility model discloses in, first leaching jar, second leaching jar and third leaching jar all are provided with the stirring rake in the jar.
The utility model discloses in, first evaporation plant is connected to first filter pressing device's liquid outlet. And a liquid outlet of the first filter pressing device obtains a lithium compound, and the lithium compound is further processed by the first evaporation device to obtain lithium carbonate.
The utility model discloses in, second evaporation plant is connected to second filter pressing device's liquid outlet, and first decomposition furnace is connected to second evaporation plant. And a liquid outlet of the second filter pressing device obtains a nickel compound, and the nickel compound is treated by the second evaporation device and the first decomposing furnace to obtain nickel oxide.
The utility model discloses in, the slag notch of third filter pressing device is connected the second decomposition stove. And obtaining a cobalt compound from a slag outlet of the third filter pressing device, and obtaining cobaltosic oxide from the cobalt compound under the treatment of the second decomposing furnace.
The utility model discloses in, fourth filter pressing device's slag notch is connected the third decomposition stove. And obtaining a manganese compound from a slag outlet of the fourth filter pressing device, and obtaining trimanganese tetroxide from the manganese compound under the treatment of the third decomposing furnace.
Has the beneficial effects that: nickel, cobalt, manganese leach recovery system, its positive negative pole powder that uses old and useless ternary lithium cell is the raw materials, can leach and realize nickel, cobalt, manganese element's deep separation in the lithium cell step by step, but serialization production, degree of automation is high, separation high efficiency and easy operation, operation process need not strong acid and extractant and participates in, friendly to the environment, be fit for industrial production, has fine actual popularization and using value.
Drawings
Fig. 1 is a schematic diagram of a preferred embodiment of the present invention.
Wherein: 1. a pre-processing unit; 11. a rotary kiln; 111. a feed hopper; 2. a lithium separation unit; 21. a first leaching tank; 211. a lithium leaching agent delivery pipe; 212. a stirring paddle; 22. a first filter pressing device; 23. a first evaporation device; 3 a nickel separation unit; 31. a second leaching tank; 311. a nickel leaching agent conveying pipe; 32. a second filter pressing device; 33. a second evaporation device; 34. a first decomposition furnace; 4. a cobalt separation unit; 41. a third leaching tank; 411. a manganese leaching agent conveying pipe; 42. a third filter pressing device; 43. a second decomposition furnace; 5. a manganese separation unit; 51. a first precipitation device; 52. a fourth filter pressing device; 53. a third decomposing furnace; 54. and (5) a pH adjusting tank.
Detailed Description
In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figure below.
Referring to fig. 1, a nickel, cobalt and manganese leaching and recovering system comprises a pretreatment unit 1, a lithium separation unit 2, a nickel separation unit 3, a cobalt separation unit 4 and a manganese separation unit 5.
The pretreatment unit 1 comprises a rotary kiln 11, a feed hopper 111 is arranged on the rotary kiln 11, and the rotary kiln 11 is connected with an inert gas conveying pipe. Anode and cathode powder of the waste ternary lithium battery enters the rotary kiln 11 from the feed hopper 111 for calcination, and the inert gas conveying pipe is used for conveying inert gas such as nitrogen into the rotary kiln 11, so that the whole calcination process is carried out under the protection of the inert gas.
Lithium separation unit 2 is including the first device and the first filter pressing device 22 of leaching of connection, and first leaching device is first leaching tank 21, is provided with stirring rake 212 in the first leaching tank 21, first leaching tank 21 pass through the conveyer pipe with the discharge gate of rotary kiln 11 is connected, and first leaching tank 21 is connected and is leached lithium agent conveyer pipe 211, and lithium agent conveyer pipe 211 is used for providing the lithium agent of leaching to first leaching tank 21, and lithium agent of leaching comprises sodium chloride solution and potassium chloride solution. The calcined powder of the rotary kiln 11 enters a first leaching tank 21 and is leached for the first time under the action of a lithium leaching agent. The first leaching tank 21 is connected with a first filter pressing device 22, and a liquid outlet of the first filter pressing device 22 is connected with a first evaporation device 23. The liquid outlet of the first filter pressing device 22 obtains lithium compound, and the lithium compound is further processed by the first evaporation device 23 to obtain lithium carbonate. The first evaporation device 23 is preferably an MVR evaporation device.
Filter residues obtained after treatment by the first filter pressing device 22 enter a nickel separation unit 3, the nickel separation unit 3 comprises a second leaching device and a second filter pressing device 32 which are connected, the second leaching device is a second leaching tank 31, a stirring paddle 212 is also arranged in the second leaching tank 31, the second leaching tank 31 is connected with a nickel leaching agent conveying pipe 311, the nickel leaching agent conveying pipe 311 is used for providing a nickel leaching agent for the second leaching tank 31, and the nickel leaching agent comprises a citrate solution; the filter residue obtained after the treatment of the first filter pressing device 22 is further leached in a second leaching tank 31 by a nickel leaching agent and then enters a second filter pressing device 32; the liquid outlet of the second filter-pressing device 32 is connected with a second evaporation device 33, and the second evaporation device 33 is connected with a first decomposing furnace 34. The outlet of the second filter pressing device 32 obtains a nickel compound, and the nickel compound is treated by a second evaporation device 33 and a first decomposing furnace 34 to obtain nickel oxide, wherein the second evaporation device 33 is preferably an MVR evaporation device.
The filter residue that obtains after the second filter pressing device 32 handles gets into cobalt separator unit 4, cobalt separator unit 4 is including the third leaching device and the third filter pressing device 42 of connecting, and the third leaches the device and leaches jar 41 for the third, is provided with stirring rake 212 in the third leaches jar 41 equally, and the third leaches jar 41 and connects manganese leaching agent conveyer pipe 411, and manganese leaching agent conveyer pipe 411 is used for providing the manganese leaching agent to third leaches jar 41, and manganese leaching agent preferred is the mixed solution of constituteing by citric acid, acetylcholine chloride and dimethyl sulfoxide. The filter residue obtained after the treatment by the second filter pressing device 32 is further leached by the manganese leaching agent in the third leaching tank 41 and then enters the third filter pressing device 42; the slag outlet of the third filter-pressing device 42 is connected with the second decomposing furnace 43. The slag outlet of the third filter pressing device 42 obtains a cobalt compound, and the cobalt compound is treated by the second decomposing furnace 53 to obtain cobaltosic oxide.
The liquid outlet of the third filter pressing device 42 is connected with the first precipitation device 51, the first precipitation device 51 is connected with a manganese precipitator conveying pipe, and the manganese precipitator conveying pipe is used for providing a manganese precipitator, preferably sodium hydroxide solution, for the first precipitation device 51. The first precipitation device 51 is connected with a fourth filter pressing device 52, the slag outlet of the fourth filter pressing device 52 is connected with a third decomposing furnace 53, the slag outlet of the fourth filter pressing device 52 obtains a manganese compound, and the manganese compound is treated by the third decomposing furnace 53 to obtain trimanganese tetroxide. The liquid outlet of the fourth filter pressing device 52 is connected with the third leaching tank 41 through a pH adjusting tank 54, so that the liquid obtained from the liquid outlet of the fourth filter pressing device 52 can flow back to the third leaching tank 41 after pH adjustment and be recycled as manganese precipitator.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A nickel, cobalt and manganese leaching and recovering system, which is characterized in that,
comprises a pretreatment unit, a lithium separation unit, a nickel separation unit, a cobalt separation unit and a manganese separation unit;
the pretreatment unit comprises a rotary kiln, the lithium separation unit comprises a first leaching device and a first filter pressing device which are connected, the nickel separation unit comprises a second leaching device and a second filter pressing device which are connected, the cobalt separation unit comprises a third leaching device and a third filter pressing device which are connected, and the manganese separation unit comprises a first precipitation device and a fourth filter pressing device which are connected;
the rotary kiln is connected with the first leaching device, and a slag outlet of the first filter pressing device is connected with the second leaching device; the slag outlet of the second filter pressing device is connected with the third leaching device; and the liquid outlet of the third filter pressing device is connected with the first precipitation device.
2. The nickel, cobalt and manganese leaching recovery system according to claim 1, wherein the rotary kiln is connected to an inert gas delivery pipe.
3. The nickel, cobalt and manganese leaching and recovering system according to claim 1, wherein the first leaching device is a first leaching tank, and the first leaching tank is connected with a lithium leaching agent conveying pipe; the second leaching device is a second leaching tank, and the second leaching tank is connected with a nickel leaching agent conveying pipe; the third leaching device is a third leaching tank which is connected with a manganese leaching agent conveying pipe.
4. The nickel, cobalt and manganese leaching and recovering system according to claim 3, wherein a liquid outlet of the fourth filter pressing device is connected with the third leaching tank through a pH adjusting tank.
5. The nickel, cobalt and manganese leaching and recycling system according to claim 3, wherein the first leaching tank, the second leaching tank and the third leaching tank are all provided with stirring paddles.
6. The nickel, cobalt and manganese leaching and recovering system according to claim 1, wherein a liquid outlet of the first filter-pressing device is connected with a first evaporation device.
7. The nickel, cobalt and manganese leaching and recovering system according to claim 1, wherein a liquid outlet of the second filter pressing device is connected with a second evaporation device, and the second evaporation device is connected with the first decomposing furnace.
8. The nickel, cobalt and manganese leaching recovery system according to claim 1, wherein the slag outlet of the third filter pressing device is connected to the second decomposition furnace.
9. The nickel, cobalt and manganese leaching recovery system according to claim 1, wherein the slag outlet of the fourth filter pressing device is connected to a third decomposing furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221773619.2U CN218101414U (en) | 2022-07-11 | 2022-07-11 | Nickel, cobalt, manganese leach recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221773619.2U CN218101414U (en) | 2022-07-11 | 2022-07-11 | Nickel, cobalt, manganese leach recovery system |
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| Publication Number | Publication Date |
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| CN218101414U true CN218101414U (en) | 2022-12-20 |
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| CN202221773619.2U Active CN218101414U (en) | 2022-07-11 | 2022-07-11 | Nickel, cobalt, manganese leach recovery system |
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- 2022-07-11 CN CN202221773619.2U patent/CN218101414U/en active Active
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