WO2020054917A1 - 리튬 화합물 제조방법 - Google Patents
리튬 화합물 제조방법 Download PDFInfo
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- WO2020054917A1 WO2020054917A1 PCT/KR2018/016509 KR2018016509W WO2020054917A1 WO 2020054917 A1 WO2020054917 A1 WO 2020054917A1 KR 2018016509 W KR2018016509 W KR 2018016509W WO 2020054917 A1 WO2020054917 A1 WO 2020054917A1
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- Prior art keywords
- lithium
- compound
- obtaining
- hydroxide
- leachate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D15/361—Ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/422—Electrodialysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/06—Sulfates; Sulfites
-
- 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
- C22B1/02—Roasting processes
-
- 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
- C22B26/12—Obtaining lithium
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
Definitions
- the present invention relates to a method for producing a lithium compound. More specifically, the present invention relates to a method for producing a lithium compound capable of obtaining lithium compounds such as lithium phosphate and lithium sulfate at high concentrations from a lithum-containing ore.
- a lithium-containing material is roasted in the presence of an acid such as sulfuric acid to obtain acid-burned, iridium-containing material, and lithium by converting the acid-fired lithium-containing material into lithium carbonate or lithium hydroxide. I gave it.
- the manufacturing method provides a lithium compound manufacturing method capable of directly producing lithium phosphate without going through a manufacturing process of lithium carbonate or lithium hydroxide from a lithium-containing ore.
- a method of manufacturing a lithium compound according to an embodiment of the present invention comprises the steps of heat-treating a lithium-containing ore; Preparing the product by roasting the heat-treated ore with sulfuric acid; Preparing a leachate by mixing the product with leachate; Purifying the leach solution; And a phosphorus supplying material to the purified leachate and 2020/054917 1 »(: 1 ⁇ 1 ⁇ 2018/016509
- the heat treatment temperature may be 1000 to 12501 :.
- the equivalent ratio of lithium and sulfuric acid in the heat-treated ore may be 1: 1 to 1: 1.4.
- the roasting temperature may be 150 to 250 MPa.
- the weight ratio of the product and the leachate may be 1: 1 to 1: 3.
- Purifying the leachate may include: separating a primary impurity containing an hour, ⁇ or a combination thereof by adjusting the leachate to 5 to 8; And removing secondary impurities including 3 ⁇ 43 ⁇ 4, 03, or a combination thereof by adjusting the leachate from which the primary impurities are separated to 10 or more.
- a lithium hydroxide solution in which 20 to 4 native lithium is dissolved may be introduced to control.
- sodium carbonate may be added to the leachate from which the primary impurities are separated, followed by stirring, followed by sodium hydroxide.
- the equivalent ratio of the secondary impurities and the sodium carbonate may be 1: 3 to 1: 5.
- the leachate separated from the secondary impurities is passed through an ion exchange resin to remain Removing; may further include.
- the basic substance may be adjusted to 9 to 12 of the purified leach solution.
- the phosphorus supplying material includes at least one of phosphoric acid, sodium phosphate and lithium phosphate, and the basic material is sodium hydroxide, calcium hydroxide, potassium hydroxide, barium hydroxide, magnesium hydroxide and calcium oxide. It may contain one or more. 2020/054917 1 »(: 1 ⁇ 1 ⁇ 2018/016509
- the filtrate remaining after giving the solid lithium phosphate may be used as the needle water.
- the step of obtaining the solid phase lithium sulfate may include mixing the lithium phosphate with a phosphoric acid solution having a concentration of 30 to 50% by weight; Preparing a mixture by adding sulfuric acid to lithium phosphate mixed with the phosphoric acid solution; And filtering the mixture to separate the solid lithium sulfate and the filtrate.
- the phosphate solution may use the filtrate.
- the total concentration of phosphorus (rice and sulfur ( ⁇ ) in the filtrate may be 3 ⁇ 4 0 1 MPa or more.
- a desalting solution in which lithium of 1.5 to 2.0 ⁇ ⁇ is dissolved together with the aqueous solution of lithium hydroxide can be obtained.
- the desalting solution may be used as the solvent.
- an additive crystallization filtrate may be used for purification of the leachate.
- the crystallization filtrate may be added together to control the lithium sulfate aqueous solution to 10 or more.
- the method for manufacturing a lithium compound according to an embodiment of the present invention can directly manufacture lithium phosphate without going through a manufacturing process of lithium carbonate or lithium hydroxide from a lithium-containing ore, thereby reducing the number of processes and improving productivity. .
- lithium phosphate may be mixed with sulfuric acid to produce solid lithium sulphate, and lithium hydroxide may be produced using a bipolar electrodialysis machine.
- FIG. 1 is a process chart showing a method for producing lithium phosphate from a lithum-containing ore according to an embodiment of the present invention.
- Figure 2 is a process diagram showing a method for producing lithium hydroxide from lithium-containing ore according to an embodiment of the present invention.
- Figure 3 shows a mineral phase of lithium phosphate in powder form recovered from a lithium-containing ore.
- FIG. 4 is a view showing a bipolar electrodialysis machine used in a method for producing a lithium compound according to an embodiment of the present invention.
- first, second and third are used to describe various parts, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, the first portion, component, region, layer or section described below may be referred to as the second portion, component, region, layer or section within the scope of the present invention.
- the method for manufacturing a lithium compound according to an embodiment of the present invention comprises the steps of heat-treating a lithium-containing ore, preparing a product by roasting the heat-treated ore with sulfuric acid, mixing a product with needle water, and preparing a needle fluid, leachate It comprises the step of purifying and the step of obtaining a solid phase of lithium phosphate by adding a phosphorus supplying substance and a basic substance to the purified leachate.
- the step of reacting lithium phosphate in the solid phase with sulfuric acid to obtain lithium sulfate in the solid phase may be included.
- the method further includes dissolving solid lithium sulfate in a solvent to obtain a lithium sulfate aqueous solution and introducing a lithium sulfate aqueous solution into a bipolar electrodialysis machine to obtain an aqueous lithium hydroxide solution.
- the ore-containing ore can be heat-treated at a heat treatment temperature of 1000 to 125 s.
- heat treatment Potumin light can be converted to
- the spodumene light may contain 2.5 to 3.5% by weight of lithium. 2020/054917 1 »(: 1 ⁇ 1 ⁇ 2018/016509
- the heat-treated ore is roasted with sulfuric acid.
- the equivalent ratio of lithium and sulfuric acid in the heat-treated ore may be 1: 1 to 1 to 1.4.
- the concentration of sulfuric acid may be 95% or more.
- the roasting temperature may be 150 to 250.
- the product is mixed with leachate to prepare a leachate.
- Distilled water as leachate, large! ) ⁇ vater Bipolar Electrolyzed demineralized water and the remaining filtrate after extraction of lithium phosphate.
- the weight ratio of the product and the leachate may be 1: 1 to 1: 3.
- the primary impurity containing poetry or a combination thereof is adjusted by adjusting the leachate to 5 to 8, and the leachate from which the primary impurities are separated is adjusted to 10 or more to 3 ⁇ 4 ⁇ , Ca, ⁇ or a step of removing the secondary impurities including a combination thereof and the secondary impurity is separated by passing the leachate separated through the ion exchange resin And removing.
- Si and Si show amphoteric ionization in strong acid and strong alkali, so to remove Si and Si, adjust 6 to 7, and 20 to 40 ⁇ ⁇ lithium is dissolved to control
- An aqueous lithium hydroxide solution can be added.
- an aqueous solution containing at least one of sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, barium hydroxide, calcium oxide and calcium carbonate can be added as a basic substance.
- step of separating the secondary impurities In order to remove, it is adjusted to 10 or more, and one or more of sodium carbonate and sodium hydroxide can be introduced for control.
- the first impurity may be stirred by adding sodium carbonate to the separated leach solution and then stirring by adding sodium hydroxide.
- the reaction formula of sodium carbonate and secondary impurity »6 2+ can be as follows. 2020/054917 1 » (: 1 ⁇ 1 ⁇ 2018/016509
- reaction formula of sequential sodium carbonate and secondary impurities »6 2+ may be as follows.
- Secondary impurities and the equivalent ratio of sodium carbonate may be 1: 3 to 1: 5. Next, it remains by passing the leachate through the ion exchange resin. Can be removed.
- the input amount of the phosphorus supplying material may be 0.5 to 1.5 equivalents based on the lithium in the leach solution. If the above range is satisfied, it can be very advantageous in terms of a high recovery rate of lithium phosphate and a low concentration of residual phosphoric acid after recovery of lithium phosphate because excess phosphoric acid is not injected.
- the basic substance may be adjusted to 9 to 12 of the purified leachate. Carbonate and the like present in the leachate can be precipitated at 9 or more. Since the leachate may be lowered to 9 or less due to the input of phosphorus-supplying material, basic substances may be added together. Through this, the leachate can be adjusted to 9 to 12.
- the phosphorus supplying material may include at least one of phosphoric acid, sodium phosphate and lithium phosphate.
- the basic material may include one or more of sodium hydroxide, calcium hydroxide, potassium hydroxide, barium hydroxide, magnesium hydroxide and calcium oxide.
- reaction formula When phosphoric acid is added as a phosphorus supplying material and sodium hydroxide is added as a basic material, the reaction formula may be as follows.
- the remaining filtrate may contain 3 ⁇ 4 of 0.5 to 1. 3 ⁇ 4 ⁇ .
- the extracted lithium phosphate can be dried to obtain a powder form.
- the mineral phase according to this can be seen in FIG. 3.
- the step of obtaining solid lithium sulfate comprises mixing lithium phosphate with a phosphoric acid solution having a concentration of 30 to 50% by weight; adding sulfuric acid to the phosphate mixed with the phosphoric acid solution to prepare a mixture and filtering the mixture It may include the step of separating the solid lithium sulfate and filtrate.
- solid phosphate may be mixed with a phosphoric acid solution having a concentration of 30 to 50% by weight to form a slurry.
- sulfuric acid is added to the slurryed lithium phosphate and phosphoric acid solution to mix the mixture.
- the mixture is prepared through the direct reaction of solid lithium phosphate and sulfuric acid, and reactions such as the following reaction may occur.
- the mixture contains a phosphoric acid solution in which sulfate ions are present, and solid lithium sulfate may be precipitated in the phosphoric acid solution.
- the mixture can be separated into solid-liquid with solid lithium sulphate and filtrate.
- the filtrate may be a high concentration phosphoric acid solution having a value of 180 to 191 ⁇ 2 mm.
- the total concentration of phosphorus (US and sulfur ratio) of the filtrate may be 3 ⁇ 4101 / 1 > or more.
- the filtrate can be used as a phosphoric acid solution in the step of mixing lithium phosphate with a phosphoric acid solution.
- the aqueous solution of lithium sulfate may be introduced into a bipolar electrodialysis machine to obtain a desalting solution in which 1.5 to 2.0 ⁇ ⁇ of lithium is dissolved together with the aqueous solution of lithium hydroxide. Further, an aqueous sulfuric acid solution can also be obtained.
- the desalting solution can be used as a solvent in the step of obtaining a lithium sulfate aqueous solution by dissolving lithium sulfate in a solid phase in a solvent.
- an aqueous solution of sulfuric acid is also used. 2020/054917 1 »(: 1 ⁇ 1 ⁇ 2018/016509
- the bipolar electrodialysis machine used in the process of converting aqueous solution of lithium hydroxide is a positive electrode cell containing a positive electrode, a first bipolar membrane, an anion selective dialysis membrane, a cation selective dialysis membrane, a second bipolar membrane, a cathode cell including a negative electrode
- a positive electrode cell containing a positive electrode, a first bipolar membrane, an anion selective dialysis membrane, a cation selective dialysis membrane, a second bipolar membrane, a cathode cell including a negative electrode
- the method may further include a step of crystallizing by drying the aqueous lithium hydroxide solution and obtaining a crystallization filtrate in which the crystallized lithium hydroxide and 33 to 33 ⁇ 4 ⁇ lyum are dissolved. Drying and crystallization of an aqueous solution of lithium hydroxide can yield lithium hydroxide in powder form. On the other hand, it is possible to obtain a crystallization filtrate in which 33 to 37 ⁇ m of lithium is dissolved.
- the crystallization filtrate can be used for purification of the leachate in the step of purifying the leachate.
- the crystallization filtrate may be added together to control the aqueous solution of lithium sulfate to 10 or more.
- Spodumene lithium-containing ore was heat treated at 11001.
- the composition before and after the heat treatment is shown in Table 1 below.
- the lithium-containing ore shows a lithium content of 2.96% by weight, and it can be seen that the composition after heat treatment is large.
- the product and distilled water were used at a weight ratio of 1: 2 and stirred at room temperature for 1 hour to leach the lithium, and the composition of the leach solution is shown in Table 3 below.
- the impurities such as, bee, etc. must be removed from the leachate because they precipitate as lithium phosphate and act as impurities during lithium recovery or bipolar electrodialysis or cause process problems.
- Si and Si show amphoteric ionization in strong acid and strong alkali, so adjust to 5 to 8 to remove first.
- ⁇ , Ca and ⁇ are removed by adjusting the leachate from which the dead and dead are removed to 10 or more.
- a basic substance is used as the acid regulator for removing poetry and saturation, and one of sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, barium hydroxide, calcium oxide, and calcium carbonate is used to adjust the salivary fluid.
- the leach solution was adjusted to 6.5 with an aqueous solution (® aqueous solution) and stirred at room temperature for 2 hours to be purified first.
- Table 4 below shows the composition of the leachate before purification and the leachate after the first purification. 280 was adjusted while slowly adding calcium oxide of 2.9 to the leachate. It can be seen from 5 to 8 that poems and were effectively removed. 2020/054917 1 »(: 1 ⁇ 1 ⁇ 2018/016509
- a crystallization filtrate obtainable in the step of drying and crystallizing a lithium hydroxide aqueous solution may be used and it is a lithium hydroxide aqueous solution in which approximately 31 ⁇ 2 ⁇ of lithium is dissolved.
- the crystallization filtrate of the post-process of 200 per leachate was injected at 9.2 level to adjust the level to 6 to complete the first purification.
- Table 5 below shows the composition of the leachate before purification, the leachate after the first purification, and the crystallization filtrate.
- ⁇ 2 (: 0 3 and ⁇ was used. Specifically, poetry and ⁇ were removed. After adding 4 equivalents of 2 ⁇ 3 of concentration and stirring at room temperature for 30 minutes, an example was added to adjust to 11.6, followed by stirring for 2 hours to purify secondarily.
- Table 6 shows the composition of the leachate after the first purification and the leachate after the second purification. It can be seen that 3 ⁇ 41, 6, and 6 were removed from 10 or more by addition of phosphoric acid and E.
- the dry phosphate component was immediately determined through ICP (Inductively Coupled Plasma) to calculate the amount of sulfuric acid equivalent to 1 equivalent, and the purity of sulfuric acid used was 95%.
- lithium phosphate In order to slurry lithium phosphate, a phosphoric acid solution having a concentration of 30 to 50% by weight was used, and the phosphoric acid solution was prepared by mixing 85% phosphoric acid solution (large purified gold) with ultrapure water. Lithium phosphate and a phosphoric acid solution were mixed in a reaction vessel to form a slurry, and sulfuric acid was added while stirring at 200 rpm. At this time, the input rate of sulfuric acid was about 10 g / min.
- the pressure was about 50. 10?
- the components through analysis were analyzed and the results were shown in Table 10 below.
- the recovered filtrate showed a high concentration of 189.86 ⁇ ⁇ phosphoric acid and contained lyum of 7. 16 ⁇ ⁇ .
- the desalination solution means a desalination solution generated together with an aqueous lithium hydroxide solution in a process of converting to lithium hydroxide using a bipolar electrodialysis machine.
- the solid lithium sulfate was tested for the preparation of an aqueous solution of lithium sulfate using a desalting solution.
- the components of the _ desalting solution used in the solvent are shown in Table 11 below, and the components of the prepared aqueous lithium sulfate solution (1 person solution) are shown in Table 12 below.
- the desalting solution contained 1.62 ⁇ ⁇ of iridium, 4.36 ⁇ ⁇ of sulfur ( ⁇ , 0.314 dragon's phosphorus), and a small amount of sodium phosphate was detected. It was confirmed that the lithium sulfate aqueous solution prepared using the desalting solution contained 33.84 ⁇ ⁇ level of lithium.
- lithium sulfate is dissolved by dissolving the solid lithium sulfate using a desalting solution.
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/275,363 US12473201B2 (en) | 2018-09-11 | 2018-12-21 | Method for producing lithium compound |
| AU2018440774A AU2018440774B2 (en) | 2018-09-11 | 2018-12-21 | Method for producing lithium compound |
| CN201880099360.8A CN113015693A (zh) | 2018-09-11 | 2018-12-21 | 锂化合物的制备方法 |
| AU2022291544A AU2022291544B2 (en) | 2018-09-11 | 2022-12-22 | Method for producing lithium compound |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180108307A KR102177039B1 (ko) | 2018-09-11 | 2018-09-11 | 리튬 화합물 제조방법 |
| KR10-2018-0108307 | 2018-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020054917A1 true WO2020054917A1 (ko) | 2020-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2018/016509 Ceased WO2020054917A1 (ko) | 2018-09-11 | 2018-12-21 | 리튬 화합물 제조방법 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12473201B2 (ko) |
| KR (1) | KR102177039B1 (ko) |
| CN (1) | CN113015693A (ko) |
| AU (2) | AU2018440774B2 (ko) |
| WO (1) | WO2020054917A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117023736A (zh) * | 2023-07-19 | 2023-11-10 | 广东芳源新材料集团股份有限公司 | 一种含锂溶液除杂的方法及其应用和系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4438749A3 (en) | 2016-11-14 | 2025-01-08 | Lilac Solutions, Inc. | Lithium extraction with coated ion exchange particles |
| US10439200B2 (en) | 2017-08-02 | 2019-10-08 | Lilac Solutions, Inc. | Ion exchange system for lithium extraction |
| AR112663A1 (es) | 2017-08-02 | 2019-11-27 | Lilac Solutions Inc | Extracción de litio con perlas porosas de intercambio iónico |
| KR20200116526A (ko) | 2018-02-28 | 2020-10-12 | 리락 솔루션즈, 인크. | 리튬 추출을 위한 입자 트랩을 가진 이온 교환 반응기 |
| CA3178825A1 (en) | 2020-06-09 | 2021-12-16 | David Henry SNYDACKER | Lithium extraction in the presence of scalants |
| KR20220026292A (ko) * | 2020-08-25 | 2022-03-04 | 재단법인 포항산업과학연구원 | 리튬을 함유하는 원료에서 수산화리튬을 제조하는 방법 |
| KR102603249B1 (ko) * | 2020-12-21 | 2023-11-15 | 주식회사 포스코 | 리튬 화합물 제조방법 |
| KR102290506B1 (ko) * | 2021-02-22 | 2021-08-18 | 한국지질자원연구원 | 폐 양극재 반응도가니로부터 리튬의 회수방법 |
| KR20240014047A (ko) | 2021-04-23 | 2024-01-31 | 리락 솔루션즈, 인크. | 리튬 추출을 위한 이온 교환 장치 |
| EP4499260A4 (en) | 2022-03-28 | 2026-04-01 | Lilac Solutions Inc | DEVICES FOR THE EFFICIENT USE OF SORBANTS IN LITHIUM EXTRACTION |
| AR128953A1 (es) | 2022-04-01 | 2024-06-26 | Lilac Solutions Inc | Extracción de litio con aditivos químicos |
| WO2024165621A1 (en) * | 2023-02-08 | 2024-08-15 | Northvolt Revolt Ab | A method for recovery of lithium |
| CN116621137B (zh) * | 2023-05-30 | 2025-08-12 | 曲靖市德方纳米科技有限公司 | 电池级磷酸锂及其制备方法、正极材料、电解液和电池 |
| KR20250091896A (ko) * | 2023-12-14 | 2025-06-23 | 포스코홀딩스 주식회사 | 폐내화갑 박리물의 제조 방법, 폐내화갑 박리물 및 이를 이용한 리튬의 회수 방법 |
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| AU2022291544A1 (en) | 2023-02-02 |
| US20220194796A1 (en) | 2022-06-23 |
| KR102177039B1 (ko) | 2020-11-10 |
| AU2018440774B2 (en) | 2022-09-29 |
| US12473201B2 (en) | 2025-11-18 |
| CN113015693A (zh) | 2021-06-22 |
| AU2018440774A1 (en) | 2021-05-20 |
| KR20200029809A (ko) | 2020-03-19 |
| AU2022291544B2 (en) | 2025-02-06 |
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