CN111644145A - Preparation method of magnetic lithium adsorbent - Google Patents
Preparation method of magnetic lithium adsorbent Download PDFInfo
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- CN111644145A CN111644145A CN202010510656.3A CN202010510656A CN111644145A CN 111644145 A CN111644145 A CN 111644145A CN 202010510656 A CN202010510656 A CN 202010510656A CN 111644145 A CN111644145 A CN 111644145A
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- magnetic
- adsorbent
- lithium
- magnetic material
- aluminum
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 44
- 239000003463 adsorbent Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000696 magnetic material Substances 0.000 claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 238000005119 centrifugation Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 2
- OCFSGVNHPVWWKD-UHFFFAOYSA-N butylaluminum Chemical compound [Al].[CH2]CCC OCFSGVNHPVWWKD-UHFFFAOYSA-N 0.000 claims description 2
- 229940090961 chromium dioxide Drugs 0.000 claims description 2
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 claims description 2
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 claims description 2
- 239000006247 magnetic powder Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 10
- 230000005389 magnetism Effects 0.000 abstract description 8
- 238000001035 drying Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000013543 active substance Substances 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000012267 brine Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0248—Compounds of B, Al, Ga, In, Tl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a preparation method of a magnetic adsorbent, which comprises the steps of firstly adding organic aluminum and lithium chloride into a reaction kettle according to the molar ratio of aluminum to lithium of 1:2, then adding water, wherein the solid-liquid ratio is 20-50%, starting stirring, and reacting for 1-2 h; adding a nano-scale magnetic material, and ultrasonically stirring for 0.5-1 h; removing part of water by adopting a magnetic adsorption or centrifugation method to ensure that the solid content is 80-90% and storing, wherein the solid matter is a magnetic adsorbent; step A, B, C is performed under nitrogen. The reaction is protected by nitrogen in the whole process, so that the magnetic material is prevented from being oxidized to weaken the magnetism; the reaction does not need the procedures of filtering, washing, drying and the like, and the adsorbent is stored in a liquid state, so that the active substances are more favorably stored; no by-product is generated in the reaction, and impurity removal is not needed; the aluminum-based adsorbent is attached to the surface of the magnetic material, namely the surface of the magnetic material is connected with the main adsorbent body in a molecular bond form, so that the high-capacity adsorption of the adsorbent can be kept, and the magnetic material is protected from being oxidized by the outside air so as to lose magnetism.
Description
Technical Field
The invention relates to a preparation method of a magnetic lithium adsorbent, belonging to the technical field of preparation of magnetic adsorbent materials.
Background
In recent years, with the rapid development of electric bicycles, electric automobiles and IT industries, lithium batteries and lithium power batteries have become indispensable products, and thus the global demand for lithium resources is increasing. After the solid lithium resources in China and the world are exploited for over a century, the solid lithium resources in the future are in a depletion state in advance, and the demands of people cannot be met.
Salt lake brine, seawater and the like contain rich liquid lithium resources, and are main resources of the future lithium making industry. How to extract lithium from these liquid ores is an important issue for the new century. At present, scholars at home and abroad have made many studies on liquid lithium resources, wherein adsorption lithium extraction is regarded as the most promising lithium extraction means. However, most of the prepared powdery lithium adsorbent exists only in lithium extraction in a laboratory, and the filtering problem determines that the powdery lithium adsorbent cannot be applied to industrial production.
In recent years, a great deal of research has been conducted on lithium adsorbents, which are new materials, as they have a certain memory function for lithium ions due to the intercalation of lithium ions, and have stable adsorption capacity and elution rate. Since the powdery lithium adsorbent is easily lost, it is necessary to use a granulation process or to prepare a molecular sieve. The common preparation process is to adopt an organic solvent as a binder to carry out granulation molding. If the Russian technique is adopted in the lithium industry of the salt lake Lanceae at present, LiCl.2Al (OH) is put into powder3.XH2O, methylene chloride and CPVC, and some methods, like this method, granulate other types of adsorbents such as spinel-type manganese-based adsorbents, and such methods have disadvantages in that the adsorption capacity of the adsorbent is affected by a decrease in the effective components of the adsorbent due to the addition of organic substances, and the life of the adsorbent is affected by a gradual loss of the granular adsorbent due to a long-term soaking in brine.
Researchers study magnetic lithium adsorbents, mainly reacting active ingredients of the lithium adsorbents with magnetic materials, and performing solid-liquid separation by adopting magnetic separation. The method does not need granulation of other organic substances and has good solid-liquid separation effect. The inventors of the present application have also made relevant studies, but found that the magnetic lithium adsorbent gradually decreases in magnetism with time, and that the solid-liquid separation effect is not good. In order to improve the separation effect and ensure that the magnetism is not lost, the application provides a preparation method of a magnetic lithium adsorbent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a magnetic lithium adsorbent.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of a magnetic lithium adsorbent comprises the following steps:
A. firstly, adding organic aluminum and lithium chloride into a reaction kettle according to the molar ratio of aluminum to lithium of 1:2-2.5, then adding water, wherein the solid-to-liquid ratio is 20% -50%, starting stirring, and reacting for 1-2 h;
B. adding a nano-scale magnetic material, and ultrasonically stirring for 0.5-1 h;
C. removing part of water by adopting a magnetic adsorption or centrifugation method to ensure that the solid content is 80-90% and storing, wherein the solid matter is a magnetic adsorbent;
step A, B, C is performed under nitrogen.
In the method, the nitrogen protection is carried out in the whole process to prevent the magnetic material from contacting with the air and weaken the magnetism.
Preferably, the organic aluminum in the step A adopts hydrolyzable organic aluminum, including aluminum isopropoxide and butyl aluminum.
Preferably, the magnetic material in step B is any one or a combination of iron-based, nickel-based or cobalt-based magnetic materials, and the molar ratio of the magnetic material to lithium is 1-3: 1.
In the step C of the method, the solid substances are directly removed by part of water without filtering, washing and drying, and are stored in a wet state.
The invention has the beneficial effects that: under the protection of nitrogen, adding organic aluminum and lithium salt into water according to a certain proportion to generate an aluminum-based adsorbent, then adding a nanoscale magnetic material, and carrying out ultrasonic stirring to obtain the magnetic adsorbent. The invention is characterized in that: 1, protecting nitrogen in the whole reaction process to prevent the magnetic material from being oxidized to weaken the magnetism; 2. the reaction does not need the procedures of filtering, washing, drying and the like, and the adsorbent is stored in a liquid state, so that the active substances are more favorably stored; 3. no by-product is generated in the reaction, and impurity removal is not needed; 4. the reaction is mainly characterized in that the aluminum-based adsorbent is attached to the surface of the magnetic material, namely the surface of the magnetic material is connected with the main body of the adsorbent in a molecular bond mode, so that the high-capacity adsorption of the adsorbent can be maintained, and the magnetic material is protected from being oxidized by the outside air so as to lose magnetism.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
Example 1
Firstly, adding a mixture of organic aluminum and lithium chloride (the molar ratio of aluminum to lithium is 1: 2) into a 1L reaction kettle, adding deionized water to enable the solid-to-liquid ratio in the system to be 20%, quickly stirring for 1h, then adding an iron magnetic material (specifically adopting nano ferroferric oxide in the example) with the molar ratio of lithium to be 1:1, starting ultrasonic stirring for 0.5h, then filtering out excessive water by adopting a magnetic adsorption method to enable the solid content to be 80%, and storing for later use.
Example 2
Firstly, adding a mixture of organic aluminum and lithium chloride (the molar ratio of aluminum to lithium is 1: 2) into a 1L reaction kettle, adding deionized water to enable the solid-to-liquid ratio in the system to be 20%, stirring for 1h, then adding an iron magnetic material (specifically, nano ferroferric oxide is adopted in the example) with the molar ratio of lithium to be 2:1, starting ultrasonic stirring for 1h, then filtering out excessive water by adopting a magnetic adsorption method to enable the solid content to be 90%, and storing for later use.
Example 3
Firstly, adding a mixture of organic aluminum and lithium chloride (the molar ratio of aluminum to lithium is 1: 2.5) into a 1L reaction kettle, adding deionized water to enable the solid-to-liquid ratio in the system to be 20%, quickly stirring for 1h, then adding an iron magnetic material (specifically adopting nano ferroferric oxide) with the molar ratio of lithium to be 3:1, starting ultrasonic stirring for 2h, then filtering out excessive water by adopting a magnetic adsorption method to enable the solid content to be 80%, and storing for later use.
Example 4
Firstly, adding a mixture of organic aluminum and lithium chloride (the molar ratio of aluminum to lithium is 1: 2) into a 1L reaction kettle, adding deionized water to enable the solid-to-liquid ratio in the system to be 20%, quickly stirring for 1h, then adding a cobalt magnetic material (specifically, chromium dioxide coated cobalt magnetic powder is adopted in the example) with the molar ratio of lithium to be 3:1, starting ultrasonic stirring for 2h, then filtering excessive water by adopting a magnetic adsorption method to enable the solid content to be 80%, and storing for later use.
Example 5
Firstly, adding a mixture of organic aluminum and lithium chloride (the molar ratio of aluminum to lithium is 1: 2) into a 1L reaction kettle, adding deionized water to enable the solid-to-liquid ratio in the system to be 20%, quickly stirring for 1h, then adding a nickel magnetic material with the molar ratio of lithium to be 3:1, starting ultrasonic stirring for 2h, then filtering out excessive water by adopting a magnetic adsorption method to enable the solid content to be 80%, and storing for later use.
Example 6
The samples in the above examples were subjected to a brine desorption adsorption experiment. Firstly, deionized water is added into a sample for desorption, and the desorption condition is room temperature ultrasonic oscillation for 0.5 h. Filtering to remove water, adding 500ml of brine for adsorption experiment, performing static adsorption for 2h, separating brine from solid by magnetic adsorption method, adding 500ml of deionized water, performing ultrasonic oscillation for 0.5h, and analyzing lithium ion content by atomic absorption spectrum. The adsorption capacity of the adsorbent No. 1 is calculated to be 9.6mg/g, the adsorption capacity of the adsorbent No. 2 is calculated to be 8.3mg/g, the adsorption capacity of the adsorbent No. 3 is calculated to be 8.5mg/g, the adsorption capacity of the adsorbent No. 4 is calculated to be 7.6mg/g, the adsorption capacity of the adsorbent No. 5 is calculated to be 8.0mg/g, the experiment is repeated for 10 times, the magnetism of the adsorbent is not weakened, and the adsorption capacities are respectively as follows: 9.4mg/g, 8.2mg/g, 8.3mg/g, 7.5mg/g, 7.9 mg/g.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (4)
1. A preparation method of a magnetic lithium adsorbent is characterized by comprising the following steps:
A. firstly, adding organic aluminum and lithium chloride into a reaction kettle according to the molar ratio of aluminum to lithium of 1 (2-2.5), then adding water, wherein the solid-liquid ratio is 20% -50%, starting stirring, and reacting for 1-2 h;
B. adding a nano-scale magnetic material, and ultrasonically stirring for 0.5-1 h;
C. removing part of water by adopting a magnetic adsorption or centrifugation method to ensure that the solid content is 80-90% and storing, wherein the solid matter is a magnetic adsorbent;
step A, B, C is performed under nitrogen.
2. The method of claim 1, wherein the organoaluminum in step a is a hydrolyzable organoaluminum, such as aluminum isopropoxide and butyl aluminum.
3. The method for preparing the magnetic lithium adsorbent according to claim 1, wherein the magnetic material in the step B is any one or a combination of iron-based, nickel-based or cobalt-based magnetic materials, and the molar ratio of the magnetic material to lithium is 1-3: 1.
4. The method for preparing the magnetic lithium adsorbent according to claim 3, wherein the iron-based magnetic material is nano ferroferric oxide, and the cobalt-based magnetic material is: the cobalt magnetic powder is coated with chromium dioxide.
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| CN202010510656.3A CN111644145A (en) | 2020-06-08 | 2020-06-08 | Preparation method of magnetic lithium adsorbent |
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| CN202010510656.3A CN111644145A (en) | 2020-06-08 | 2020-06-08 | Preparation method of magnetic lithium adsorbent |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829538A (en) * | 2010-05-19 | 2010-09-15 | 浙江海虹控股集团有限公司 | Preparation method of high-performance lithium adsorbent |
| CN102464358A (en) * | 2010-11-05 | 2012-05-23 | 中国科学院生态环境研究中心 | Ultrasonic auxiliary hydrothermal synthesizing water-soluble square ferrite magnetic nano-material method |
| CN109012567A (en) * | 2017-11-10 | 2018-12-18 | 江苏旌凯中科超导高技术有限公司 | Magnetic aluminium base lithium adsorbent and preparation method thereof |
| CN109078602A (en) * | 2018-09-07 | 2018-12-25 | 中国科学院青海盐湖研究所 | Magnetic micropore lithium adsorbent and the preparation method and application thereof |
| CN110639467A (en) * | 2019-10-18 | 2020-01-03 | 华东理工大学 | Preparation method of magnetic aluminum salt lithium adsorbent |
| CN110694578A (en) * | 2019-09-23 | 2020-01-17 | 五邑大学 | Co-C-N composite material and preparation method and application thereof |
-
2020
- 2020-06-08 CN CN202010510656.3A patent/CN111644145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829538A (en) * | 2010-05-19 | 2010-09-15 | 浙江海虹控股集团有限公司 | Preparation method of high-performance lithium adsorbent |
| CN102464358A (en) * | 2010-11-05 | 2012-05-23 | 中国科学院生态环境研究中心 | Ultrasonic auxiliary hydrothermal synthesizing water-soluble square ferrite magnetic nano-material method |
| CN109012567A (en) * | 2017-11-10 | 2018-12-18 | 江苏旌凯中科超导高技术有限公司 | Magnetic aluminium base lithium adsorbent and preparation method thereof |
| CN109078602A (en) * | 2018-09-07 | 2018-12-25 | 中国科学院青海盐湖研究所 | Magnetic micropore lithium adsorbent and the preparation method and application thereof |
| CN110694578A (en) * | 2019-09-23 | 2020-01-17 | 五邑大学 | Co-C-N composite material and preparation method and application thereof |
| CN110639467A (en) * | 2019-10-18 | 2020-01-03 | 华东理工大学 | Preparation method of magnetic aluminum salt lithium adsorbent |
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Application publication date: 20200911 |