CN116159667A - Method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing dispersion medium - Google Patents
Method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing dispersion medium Download PDFInfo
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- CN116159667A CN116159667A CN202211566713.5A CN202211566713A CN116159667A CN 116159667 A CN116159667 A CN 116159667A CN 202211566713 A CN202211566713 A CN 202211566713A CN 116159667 A CN116159667 A CN 116159667A
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- slurry
- nickel cobalt
- cobalt manganese
- manganese hydroxide
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- 239000002002 slurry Substances 0.000 title claims abstract description 98
- SEVNKUSLDMZOTL-UHFFFAOYSA-H cobalt(2+);manganese(2+);nickel(2+);hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mn+2].[Co+2].[Ni+2] SEVNKUSLDMZOTL-UHFFFAOYSA-H 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002612 dispersion medium Substances 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 92
- 229910052742 iron Inorganic materials 0.000 claims abstract description 46
- 238000003860 storage Methods 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000002609 medium Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims 4
- 239000000463 material Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000696 magnetic material Substances 0.000 abstract description 6
- 230000005347 demagnetization Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing a dispersion medium, which comprises the following steps: s1, temporarily storing nickel cobalt manganese hydroxide slurry needing to be demagnetized in a slurry storage tank; s2, adding the dispersion medium in the medium storage tank into the slurry storage tank; s3, stirring nickel cobalt manganese hydroxide slurry added with a dispersion medium; s4, conveying the nickel cobalt manganese hydroxide slurry to a fluid iron remover group; s5, removing iron from the nickel cobalt manganese hydroxide slurry by using a fluid iron remover group; s6, conveying the nickel cobalt manganese hydroxide slurry after iron removal back to a slurry storage tank; s7, repeating the steps of S4-S6 until the content of the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry reaches the standard; s8: and conveying the qualified nickel cobalt manganese hydroxide slurry to a post-process through a post-process pipeline. The scheme can quickly and effectively reduce the level of magnetic foreign matters in the slurry according to actual needs, can ensure that normal qualified materials are not influenced by high-magnetic materials, and simultaneously reduces the reworking cost of the high-magnetic materials on a production line.
Description
Technical Field
The invention belongs to the technical field of removing magnetic foreign matters in nickel cobalt manganese hydroxide slurry, and particularly relates to a method for reducing the magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing a dispersion medium.
Background
Along with the increasingly strict requirements of capacity expansion of precursor materials and control of metal foreign matter indexes, the requirements of downstream battery manufacturers on magnetic foreign matters of the precursor materials are improved, the magnetic foreign matters of the precursor materials are not stable enough in the whole front-end process, the yield dependence on raw materials is higher, the cost of the raw materials is unfavorable to be effectively controlled in view of the market conditions of shortage of the raw materials, in addition, nickel cobalt manganese hydroxide slurry with higher magnetic foreign matters is obtained in the process of processing centrifuge washing water and mother liquor recovery, and when the nickel cobalt manganese hydroxide slurry is pumped back to the centrifuge for washing, the washed filter cake material also contains higher magnetic foreign matters, the magnetic removing effect of an electromagnetic iron remover of the rear-end process is limited, only a lower mixing amount is put into a production line, and the risk of increasing the magnetic foreign matters of a system and exceeding the standard of the magnetic foreign matters of products still exists.
A production line is specially designed for processing high-magnetism foreign matter materials by partial precursor manufacturers, but the method has higher cost, higher equipment operation cost and foreign matter introduction risk, the processing mode can only perform secondary demagnetization on dry materials, wet materials manufactured on the production line of the front-stage working procedure can not be processed, can only be carried to the rear-stage working procedure for blending or secondary demagnetization, the recovery and utilization rate of intermediate materials are lower,
meanwhile, the general demagnetizing mode of the wet section is to additionally install one or more groups of pipeline iron removers, the nickel cobalt manganese hydroxide slurry is utilized to remove the slurry through the pipeline iron removers in the production line transportation process, the mode can only remove the slurry passing through the pipeline once, if the slurry flows fast in the pipeline, the slurry is sticky, the magnetic foreign matters adsorbed on the magnetic rod of the pipeline iron removers can be taken away, the pipeline iron removers cannot achieve a good effect, the slurry enters the next working procedure, the magnetic foreign matters in the rear working procedure accumulate, long-term high-magnetic materials are difficult to clean in the equipment, and the cleaning and demagnetizing cost is increased in the production line transferring process.
In recent years, many precursor manufacturers apply a circulating demagnetization or a slurry concentration dilution mode to improve the demagnetization effect, wherein the slurry concentration dilution mode not only greatly increases the washing dehydration cost, but also can not effectively reduce the problem that magnetic foreign matters caused by nickel cobalt manganese hydroxide particle agglomeration are difficult to be adsorbed by a pipeline iron remover, the circulating demagnetization mode can effectively reduce the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry and needs long-time operation, the slurry demagnetization effect with higher magnetic foreign matters is limited, and meanwhile, a circulating system is required to be closed to increase the treatment time when the pipeline iron remover is cleaned, so that the development requirements of enterprise promotion, cost reduction and quality improvement are not met.
At present, the power battery faucet enterprises change the content requirement of the magnetic foreign matters in the positive electrode material and the precursor thereof into the quantity requirement of the metal particles, and the management and control requirement of the magnetic metal foreign matters is further improved, so that the management and control of the magnetic foreign matters is still long in a heavy path.
In view of the above problems, a method for reducing the magnetic foreign matter of the nickel cobalt manganese hydroxide slurry by introducing a dispersion medium has been proposed.
Disclosure of Invention
In order to solve the problems, the invention provides a method for reducing the magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing a dispersion medium, which aims at solving the problem that the traditional method has limited demagnetizing effect on slurry with higher magnetic foreign matters.
The embodiment of the invention is realized by the following technical scheme:
a method for reducing magnetic foreign matter in nickel cobalt manganese hydroxide slurry by introducing a dispersion medium, comprising the following steps:
s1, temporarily storing nickel cobalt manganese hydroxide slurry needing to be demagnetized in a slurry storage tank;
s2, adding the dispersion medium in the medium storage tank into the slurry storage tank;
s3, stirring nickel cobalt manganese hydroxide slurry added with a dispersion medium;
s4, conveying the nickel cobalt manganese hydroxide slurry to a fluid iron remover group;
s5, removing iron from the nickel cobalt manganese hydroxide slurry by using a fluid iron remover group;
s6, conveying the nickel cobalt manganese hydroxide slurry after iron removal back to a slurry storage tank;
s7, repeating the steps of S4-S6 until the content of the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry reaches the standard;
s8: and conveying the qualified nickel cobalt manganese hydroxide slurry to a post-process through a post-process pipeline.
Further, a stirring device and a slurry pump are arranged in the slurry storage tank, so that the dispersion medium and the nickel cobalt manganese hydroxide slurry are fully mixed.
Further, the medium storage tank is communicated with the slurry storage tank, and a metering medium pump is arranged in the medium storage tank and is convenient for controlling the adding amount of the single dispersion medium.
Further, one end of the fluid de-ironing separator is communicated with the slurry storage tank through a feed pipe, and the other end of the fluid de-ironing separator is communicated with the slurry storage tank through a return pipe, so that a slurry circulating pipeline is formed, the slurry is subjected to multiple demagnetization, and the demagnetization effect is ensured.
Furthermore, the fluid iron remover group at least comprises two fluid iron removers, and the fluid iron removers are connected in parallel, so that the magnetic removal effect can be enhanced.
Further, the blocking valves are arranged on the feeding pipe and the return pipe, and the blocking valves are closed to clean the fluid iron remover.
Further, the post-process pipeline is provided with a stop valve.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
compared with the prior art, the method can quickly and effectively reduce the magnetic foreign matter level in the slurry according to actual needs, and compared with the prior art that the high-magnetic material is mixed and doped with the low-magnetic foreign matter material, on one hand, the method can ensure that the normal qualified material is not influenced by the high-magnetic material, and simultaneously reduce the reworking cost of the high-magnetic material on a production line, on the other hand, the method can be popularized to a re-dissolving system, reduce the pressure of raw material supply, ensure that the slurry after the demagnetization enters a post-process equivalent to the qualified slurry magnetic foreign matter level, and can enter the production line according to the normal material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "configured," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, the present embodiment provides a method for reducing magnetic foreign matters in a nickel cobalt manganese hydroxide slurry by introducing a dispersion medium.
In this example, removal of magnetic foreign matter in the nickel cobalt manganese hydroxide slurry was achieved as follows:
s1: confirming that the pipelines such as the pipeline iron remover, the feeding pipe, the blocking valve, the slurry storage tank and the return pipe are unobstructed;
s2: checking whether the stirring device in the slurry storage tank works normally or not, wherein the consumption of the dispersing medium is enough;
s3: closing a valve on a post-process pipeline, inputting nickel cobalt manganese hydroxide slurry into a slurry storage tank, and starting a stirring device;
s4: starting a dispersion medium metering and conveying pump, and adding alcohol into a slurry storage tank according to a certain proportion;
s5: adding alcohol into the nickel cobalt manganese hydroxide slurry and stirring for 30 minutes;
s6: starting a slurry conveying pump, and conveying the slurry to a fluid iron remover through a feed pipe to remove magnetic foreign matters;
s7: the demagnetized slurry flows back to the slurry storage tank through a return pipe;
s8: S6-S7 are repeated, and the content of the magnetic foreign matters in the slurry is detected every two hours. Until the content of the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry reaches the standard;
s9: and (3) opening a valve on a pipeline of the subsequent process, and conveying the nickel cobalt manganese hydroxide slurry reaching the standard to the next process.
In this embodiment, a stirring device and a slurry pump are installed in the slurry storage tank, the stirring device is used for fully mixing the dispersion medium and the nickel cobalt manganese hydroxide slurry, and the slurry pump is used for driving the slurry to circularly flow in the pipeline. The dispersion medium storage tank is communicated with the slurry storage tank and is used for storing dispersion medium, and a medium metering pump is arranged in the dispersion medium storage tank and can not only convey the dispersion medium into the slurry storage tank, but also control the single addition amount of the dispersion medium. One end of the fluid iron remover group is communicated with the slurry storage tank through a feed pipe, and the other end of the fluid iron remover group is communicated with the slurry storage tank through a return pipe to form a circulating pipeline of nickel cobalt manganese hydroxide slurry, so that the nickel cobalt manganese hydroxide slurry circularly flows, iron is removed for a plurality of times, and the iron removal effect is ensured. The fluid iron remover can be selected according to actual needs, in the embodiment, the selected fluid iron remover is a pipeline iron remover, the fluid iron remover group is at least provided with two pipeline iron removers, and the pipeline iron removers are connected in parallel, so that magnetic particles attached to a group of pipeline iron remover magnetic rods can be cleaned under the condition that circulation demagnetization is not stopped, and the iron remover can always keep higher iron removal efficiency. And blocking valves are arranged on the feeding pipe and the return pipe, and when the pipeline iron remover needs to be cleaned, the pipeline iron remover can be cleaned only by closing the blocking valves on the feeding pipe and the return pipe to enable the pipeline iron remover to be independent.
In this embodiment, the dispersion medium selected is alcohol, and the concentration and the amount of alcohol are determined according to the actual requirements of production. Since alcohol is volatile, a step of treating exhaust gas should be added to the above steps to treat the volatile alcohol.
In the embodiment, after each cycle of demagnetization for 2 hours, the slurry storage tank is sampled to detect the content of magnetic foreign matters in the nickel cobalt manganese hydroxide slurry, and a proper amount of dispersing agent is added according to the actual demagnetization effect. And after the detection reaches the standard, opening a stop valve on a pipeline of the subsequent process, and conveying the qualified nickel cobalt manganese hydroxide slurry to the next process.
In this embodiment, each valve and pump are connected with the controller, so that automatic control can be realized, and manual operation in the production process is reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The method for reducing the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry by introducing the dispersion medium is characterized by comprising the following steps of:
s1, temporarily storing nickel cobalt manganese hydroxide slurry needing to be demagnetized in a slurry storage tank;
s2, adding the dispersion medium in the medium storage tank into the slurry storage tank;
s3, stirring nickel cobalt manganese hydroxide slurry added with a dispersion medium;
s4, conveying the nickel cobalt manganese hydroxide slurry to a fluid iron remover group;
s5, removing iron from the nickel cobalt manganese hydroxide slurry by using a fluid iron remover group;
s6, conveying the nickel cobalt manganese hydroxide slurry after iron removal back to a slurry storage tank;
s7, repeating the steps of S4-S6 until the content of the magnetic foreign matters in the nickel cobalt manganese hydroxide slurry reaches the standard;
s8: and conveying the qualified nickel cobalt manganese hydroxide slurry to a post-process through a post-process pipeline.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
and a stirring device and a slurry pump are arranged in the slurry storage tank.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the medium storage tank is communicated with the slurry storage tank, and a metering medium pump is arranged in the medium storage tank.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
one end of the fluid iron remover set is communicated with the slurry storage tank through a feed pipe, and the other end of the fluid iron remover set is communicated with the slurry storage tank through a return pipe.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
the fluid iron remover group at least comprises two fluid iron removers, and the fluid iron removers are connected in parallel.
6. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
and blocking valves are arranged on the feeding pipe and the return pipe.
7. The method of claim 1, wherein the step of determining the position of the substrate comprises,
and the post-process pipeline is provided with a stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211566713.5A CN116159667A (en) | 2022-12-07 | 2022-12-07 | Method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing dispersion medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211566713.5A CN116159667A (en) | 2022-12-07 | 2022-12-07 | Method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing dispersion medium |
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| CN116159667A true CN116159667A (en) | 2023-05-26 |
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| CN202211566713.5A Pending CN116159667A (en) | 2022-12-07 | 2022-12-07 | Method for reducing magnetic foreign matters in nickel cobalt manganese hydroxide slurry by introducing dispersion medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173267A1 (en) * | 2002-03-12 | 2003-09-18 | Watters Larry A. | Common correct media sump and wing tank design |
| CN102294301A (en) * | 2011-06-03 | 2011-12-28 | 北京交通大学 | Particle size continuous gas-liquid interface jigging separation device of magnetic particles |
| CN106391302A (en) * | 2016-11-10 | 2017-02-15 | 江苏省冶金设计院有限公司 | High-intensity magnetic disperse magnetic separation device and method for low-intensity magnetic separation tailings containing magnetic mica |
| CN107350075A (en) * | 2017-09-08 | 2017-11-17 | 泰安盛源粉体有限公司 | A kind of device and method for efficiently removing metal iron tramp in aluminum oxide |
| JP2019189664A (en) * | 2018-04-18 | 2019-10-31 | 日本製紙株式会社 | Production method and production apparatus of cellulose nanofibers |
| CN110944752A (en) * | 2017-08-03 | 2020-03-31 | 巴斯夫欧洲公司 | Separation of mixtures using magnetic carrier particles |
| CN111298962A (en) * | 2020-02-11 | 2020-06-19 | 广东工业大学 | Method for improving magnetism of low-grade hematite |
| CN215586773U (en) * | 2021-09-24 | 2022-01-21 | 山东瑞福锂业有限公司 | Novel circulation that reduces lithium carbonate magnetic substance removes magnetism device |
-
2022
- 2022-12-07 CN CN202211566713.5A patent/CN116159667A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173267A1 (en) * | 2002-03-12 | 2003-09-18 | Watters Larry A. | Common correct media sump and wing tank design |
| CN102294301A (en) * | 2011-06-03 | 2011-12-28 | 北京交通大学 | Particle size continuous gas-liquid interface jigging separation device of magnetic particles |
| CN106391302A (en) * | 2016-11-10 | 2017-02-15 | 江苏省冶金设计院有限公司 | High-intensity magnetic disperse magnetic separation device and method for low-intensity magnetic separation tailings containing magnetic mica |
| CN110944752A (en) * | 2017-08-03 | 2020-03-31 | 巴斯夫欧洲公司 | Separation of mixtures using magnetic carrier particles |
| CN107350075A (en) * | 2017-09-08 | 2017-11-17 | 泰安盛源粉体有限公司 | A kind of device and method for efficiently removing metal iron tramp in aluminum oxide |
| JP2019189664A (en) * | 2018-04-18 | 2019-10-31 | 日本製紙株式会社 | Production method and production apparatus of cellulose nanofibers |
| CN111298962A (en) * | 2020-02-11 | 2020-06-19 | 广东工业大学 | Method for improving magnetism of low-grade hematite |
| CN215586773U (en) * | 2021-09-24 | 2022-01-21 | 山东瑞福锂业有限公司 | Novel circulation that reduces lithium carbonate magnetic substance removes magnetism device |
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