CN113415815B - Method for efficiently producing high-purity lithium carbonate - Google Patents
Method for efficiently producing high-purity lithium carbonate Download PDFInfo
- Publication number
- CN113415815B CN113415815B CN202110915690.3A CN202110915690A CN113415815B CN 113415815 B CN113415815 B CN 113415815B CN 202110915690 A CN202110915690 A CN 202110915690A CN 113415815 B CN113415815 B CN 113415815B
- Authority
- CN
- China
- Prior art keywords
- gas
- solution
- lithium
- chloride
- box body
- 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.)
- Active
Links
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 title claims abstract description 38
- 229910052808 lithium carbonate Inorganic materials 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 38
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 238000003795 desorption Methods 0.000 claims abstract description 22
- 238000005342 ion exchange Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 8
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 38
- 239000007921 spray Substances 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 28
- 238000011084 recovery Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000005096 rolling process Methods 0.000 claims description 24
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- 229910001510 metal chloride Inorganic materials 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 12
- 229910052629 lepidolite Inorganic materials 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 7
- 229910001947 lithium oxide Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- HEHRHMRHPUNLIR-UHFFFAOYSA-N aluminum;hydroxy-[hydroxy(oxo)silyl]oxy-oxosilane;lithium Chemical compound [Li].[Al].O[Si](=O)O[Si](O)=O.O[Si](=O)O[Si](O)=O HEHRHMRHPUNLIR-UHFFFAOYSA-N 0.000 claims description 3
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052670 petalite Inorganic materials 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 229910052642 spodumene Inorganic materials 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 235000011147 magnesium chloride Nutrition 0.000 claims description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 2
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims 6
- 238000005119 centrifugation Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 4
- 235000019738 Limestone Nutrition 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 3
- 239000006028 limestone Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000007781 pre-processing Methods 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 49
- 239000000047 product Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 241001233242 Lontra Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 150000002642 lithium compounds Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ZLMJMSJWJFRBEC-OUBTZVSYSA-N potassium-40 Chemical compound [40K] ZLMJMSJWJFRBEC-OUBTZVSYSA-N 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110915690.3A CN113415815B (en) | 2021-08-10 | 2021-08-10 | Method for efficiently producing high-purity lithium carbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110915690.3A CN113415815B (en) | 2021-08-10 | 2021-08-10 | Method for efficiently producing high-purity lithium carbonate |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113415815A CN113415815A (en) | 2021-09-21 |
CN113415815B true CN113415815B (en) | 2022-08-02 |
Family
ID=77718967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110915690.3A Active CN113415815B (en) | 2021-08-10 | 2021-08-10 | Method for efficiently producing high-purity lithium carbonate |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113415815B (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201613106U (en) * | 2010-02-24 | 2010-10-27 | 新疆旭日环保股份有限公司 | Stuffing spray-washing sewage deodorizing device |
CN104587786A (en) * | 2015-01-20 | 2015-05-06 | 成都冠禹科技有限公司 | Waste gas purifier for chemical and medicine industries |
CN106422649A (en) * | 2016-12-06 | 2017-02-22 | 南京大学环境规划设计研究院有限公司 | Integrated laboratory mixed waste gas purification device and purification method |
CN206334477U (en) * | 2016-12-09 | 2017-07-18 | 昆山强安电子科技有限公司 | A kind of small-sized turriform combined type waste gas treatment equipment |
CN107213754A (en) * | 2017-06-09 | 2017-09-29 | 湖南行者环保科技有限公司 | Fully-closed and fully-automatic gas spraying and recycling device |
CN108455635A (en) * | 2018-04-09 | 2018-08-28 | 湖南行者环保科技有限公司 | A method of from a step separation and Extraction lithium in raw material containing lithium and preparing lithium carbonate |
CN108479315A (en) * | 2018-05-23 | 2018-09-04 | 晋江市意翔环保科技有限公司 | A kind of spray column with high-efficient purification function |
CN212119483U (en) * | 2020-02-07 | 2020-12-11 | 四川企易标信息科技有限公司 | A spray set for waste gas treatment |
-
2021
- 2021-08-10 CN CN202110915690.3A patent/CN113415815B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201613106U (en) * | 2010-02-24 | 2010-10-27 | 新疆旭日环保股份有限公司 | Stuffing spray-washing sewage deodorizing device |
CN104587786A (en) * | 2015-01-20 | 2015-05-06 | 成都冠禹科技有限公司 | Waste gas purifier for chemical and medicine industries |
CN106422649A (en) * | 2016-12-06 | 2017-02-22 | 南京大学环境规划设计研究院有限公司 | Integrated laboratory mixed waste gas purification device and purification method |
CN206334477U (en) * | 2016-12-09 | 2017-07-18 | 昆山强安电子科技有限公司 | A kind of small-sized turriform combined type waste gas treatment equipment |
CN107213754A (en) * | 2017-06-09 | 2017-09-29 | 湖南行者环保科技有限公司 | Fully-closed and fully-automatic gas spraying and recycling device |
CN108455635A (en) * | 2018-04-09 | 2018-08-28 | 湖南行者环保科技有限公司 | A method of from a step separation and Extraction lithium in raw material containing lithium and preparing lithium carbonate |
CN108479315A (en) * | 2018-05-23 | 2018-09-04 | 晋江市意翔环保科技有限公司 | A kind of spray column with high-efficient purification function |
CN212119483U (en) * | 2020-02-07 | 2020-12-11 | 四川企易标信息科技有限公司 | A spray set for waste gas treatment |
Also Published As
Publication number | Publication date |
---|---|
CN113415815A (en) | 2021-09-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103086405B (en) | Clean production method of battery level lithium carbonate | |
CN102531002B (en) | Method for purifying lithium carbonate | |
US11773467B2 (en) | Method and system for processing rare earth concentrate ore | |
CN102408120B (en) | Method for preparing high-purity ultrafine lithium-carbonate micro powder | |
CN109252168A (en) | A kind of devices and methods therefor of efficient activated acid etching solution | |
CN103194768B (en) | High ferro high-phosphorus manganese is utilized to prepare the method for electrolytic metal Mn | |
CN113328161B (en) | Method for preparing monocrystal-like ternary cathode material by regenerating waste lithium ion battery cathode material | |
CN108359813B (en) | A kind of energy-saving and environment-friendly salt lake bittern proposes lithium technique | |
CN110040782A (en) | A kind of manganese dioxide, and its preparation method and application | |
CN101891256B (en) | Production technique of high-purity potassium permanganate and manganese dioxide, and carbon dioxide reaction tower | |
CN102556983B (en) | Method for extracting selenium from nickel-molybdenum ore smelting smoke dust | |
CN112871126A (en) | Preparation method of lithium ion sieve particles with high adsorption capacity | |
CN113415815B (en) | Method for efficiently producing high-purity lithium carbonate | |
CN102628105B (en) | Method for comprehensively recycling and using baric waste slag in refined aluminum production process | |
CN102851521A (en) | Method for extracting vanadium through oxidation conversion of vanadium-containing ores | |
CN110194501A (en) | From the continuous process and continuous device for recycling iodide in waste water containing iodine | |
CN110106356B (en) | Method for separating lithium from salt lake brine by using powder type titanium ion exchanger | |
CN102336429B (en) | Defluorination method for zinc sulphate solution | |
CN209412325U (en) | A kind of device of efficient activated acid etching solution | |
CN117509646B (en) | Preparation method and device of silicon-based nano-micron material | |
CN109592706B (en) | Method for effectively removing magnesium ions in electrolytic zinc sulfate solution | |
CN107630147B (en) | Method for removing chloride ions in electrolytic manganese solution | |
CN118253390B (en) | Surface-modified electrolytic manganese dioxide and preparation method and device thereof | |
CN110171846A (en) | A method of preparation lead oxide powder being roasted by ullrasonic spraying using scrap lead cream | |
CN109133116A (en) | Lithium chloride preparation method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220506 Address after: 572700 No. 1, Hainan (Changjiang) clean energy high tech Industrial Park, Haiwei Town, Changjiang Li Autonomous County, Sansha City, Hainan Province Applicant after: Hainan Walker New Material Technology Co.,Ltd. Address before: 410000 R & D plant, phase 2.1, Xinma power innovation park, No. 899, Xianyue Ring Road, Tianyuan District, Zhuzhou City, Hunan Province Applicant before: HUNAN TRAILBLAZER ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
|
TA01 | Transfer of patent application right | ||
CB02 | Change of applicant information |
Address after: 572700 No. 1, Hainan (Changjiang) clean energy high tech Industrial Park, Haiwei Town, Changjiang Li Autonomous County, Hainan Province Applicant after: Hainan Walker New Material Technology Co.,Ltd. Address before: 572700 No. 1, Hainan (Changjiang) clean energy high tech Industrial Park, Haiwei Town, Changjiang Li Autonomous County, Sansha City, Hainan Province Applicant before: Hainan Walker New Material Technology Co.,Ltd. |
|
CB02 | Change of applicant information | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An efficient method for producing high-purity lithium carbonate Effective date of registration: 20231227 Granted publication date: 20220802 Pledgee: Bank of China Hainan Branch Pledgor: Hainan Walker New Material Technology Co.,Ltd. Registration number: Y2023980075206 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |