CN108285156A - A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue - Google Patents
A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue Download PDFInfo
- Publication number
- CN108285156A CN108285156A CN201711187244.5A CN201711187244A CN108285156A CN 108285156 A CN108285156 A CN 108285156A CN 201711187244 A CN201711187244 A CN 201711187244A CN 108285156 A CN108285156 A CN 108285156A
- Authority
- CN
- China
- Prior art keywords
- lithium
- phosphoric acid
- waste residue
- carbonate
- hydroxide
- 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.)
- Granted
Links
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
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/02—Oxides; Hydroxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid；Belong to lithium ion battery material and resource circulation utilization technical field field.The present invention proposes extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid, emphasis is to carry out acidleach processing to phosphoric acid lithium waste residue, and loss of the phosphate radical without causing lithium is selectively removed from the pickle liquor of phosphoric acid lithium waste residue by a kind of dephosphorization agent, deep purifying finally is carried out to the solution after dephosphorization and removes after the impurity such as heavy metal therein sinker again, pure Lithium Carbonate or lithium hydroxide are obtained, is utilized to achieve the purpose that phosphoric acid lithium waste residue efficiently rises in value.
Description
Technical field
The present invention relates to pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid；Belong to lithium from
Sub- battery material and resource circulation utilization technical field.
Technical background
Lithium ion battery due to have it is higher than energy, have extended cycle life, the advantages such as memory-less effect and be widely used in moving
Dynamic telecommunications market, and also become one of the preferred power battery of current pure electric automobile.Along with lithium ion battery industry
Rapid development, the demand sustainable growth to associated batteries material.When preparing the electrode material used in lithium ion battery, nothing
By the LiCoO for being early stage2Or the LiMn that the later stage gradually develops2O4、LiFePO4Or ternary material etc. must all make without exception
Use high-purity lithium salts as raw material, mainly lithium carbonate or lithium hydroxide.Because being influenced by reactivity etc., lithium phosphate is seldom direct
For producing anode material for lithium-ion batteries.It is also needed when in addition preparing the negative materials such as lithium-ion battery electrolytes and metatitanic acid lithium
Want high-purity lithium salts as raw material.In order to meet the booming needs of lithium ion battery industry, surrounded both at home and abroad from spodumene, lithium
Mica and the technology of salt lake bittern extraction lithium carbonate or lithium hydroxide have carried out a large amount of research work and have carried out industrial metaplasia
Production.In these production processes when being handled before the waste water generated after to sinker discharges, it is usually added into soluble phosphate
To remove heavy metal, alkaline-earth metal and lithium in water removal, the waste residue of a large amount of phosphoric acid lithiums is formed.In addition, in order to reach resources circulation
The purpose utilized is also extraordinarily paid attention to for the technology for recycling valuable metal from waste and old lithium ion battery both at home and abroad at present,
But a large amount of research and production technology work are unfolded mainly around the metals such as Co, Ni therein are recycled, for high efficiente callback lithium
The rare report of technical research.Especially when disassembling and cleaning to old and useless battery, a large amount of waste electrolyte enter ejected wash water and
It hydrolyzes, generates the waste residue containing a large amount of transition metal phosphates, lithium phosphate, binder, conductive agent etc., still lack effective
Increment recovery processing technology.
Invention content
The invention aims to propose the side of extraction pure Lithium Carbonate or lithium hydroxide in a kind of lithium waste residue from phosphoric acid
Method, emphasis are that phosphate radical is selectively removed from the pickle liquor of phosphoric acid lithium waste residue without causing lithium by a kind of dephosphorization agent
Loss, and deep purifying is carried out to the solution after dephosphorization and removes after the impurity such as heavy metal therein sinker again, obtain high-purity carbonic acid
Lithium or lithium hydroxide utilize to achieve the purpose that phosphoric acid lithium waste residue efficiently rises in value.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, including following step
Suddenly：
Step 1
It is filtered after being leached with acid solution after lithium phosphate waste residue is ground, obtains pickle liquor；
Step 2
One gained pickle liquor of heating stepses, and Dephosphorising agent R is added thereto, being sufficiently stirred makes phosphate radical precipitate and lithium ion
It remaines in solution, waits for solution cooled and filtered, obtain filtrate and filter residue；At least one cation contained by the Dephosphorising agent R
With phosphate radical and/or one hydrogen radical of phosphoric acid and/or the formed compound M of dihydrogen phosphate；The anion of the Dephosphorising agent R and lithium from
Son forms compound Q；In pickle liquor, at identical temperature, the ratio of the solubility of compound Q and the solubility of compound M
Value is more than 2；
Step 3
Cleanser is added into filtrate obtained by step 2, removes in filtrate after remaining foreign ion, filtering is purified
Liquid；The foreign ion include phosphate radical, one hydrogen radical of phosphoric acid, dihydrogen phosphate, heavy metal ion, alkaline-earth metal ions, Na from
It is one or more in son, K ions；
Step 4
Soluble carbonate salt or alkali are added into scavenging solution, is concentrated by evaporation, filters and obtain lithium carbonate or hydrogen-oxygen after washing
Change lithium.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, in step 1, acid
Property solution be the aqueous solution selected from least one of formic acid, benzoic acid, acetic acid, sulfuric acid, hydrochloric acid, nitric acid.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, in step 1, acid
A concentration of 1~8mol/L of property solution, preferably, a concentration of 2.5~7mol/L.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, in step 1, institute
It is 3~8 with the liquid-solid ratio of acid solution and lithium phosphate slag:1, preferably, liquid-solid ratio is 3~6:1；Extraction time is 0.5~3
Hour.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, identical temperature with
And under same solution environment, the solubility of compound Q and the ratio of the solubility of compound M are more than 5；The same solution environment
Including pickle liquor after cooling.When same solution environment is pickle liquor, since solution is acid system, the hydrogen ion in solution
It will not react with the anion of the Dephosphorising agent R and generate precipitation or water and consume, i.e., will not promote lithium ion and phosphate radical
Lithium phosphate precipitation is generated again and is caused damages.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention in step 2, add
The temperature range of hot acid immersion liquid is 40~90 DEG C, preferably, the heating temperature range is 60~80 DEG C.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention in step 2, take off
Phosphorus agent R is 0.5~5 hour, preferably 1-3 hours with the time range that pickle liquor is stirred to react.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention in step 2, take off
After phosphorus agent reaction before acquired solution filtering, solution is cooled to -5~25 DEG C, preferably 0~20 DEG C.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention in step 3, are led to
The mode for crossing precipitation removes the impurity such as remaining heavy metal ion, and the valuable metal in filtering gained filter cake also can otherwise processed
Recycling.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, in step 3, only
Agent is at least one of dissolvable sulfide, hydroxide, acetate, oxalates, carbonate；It is two or more when selecting
When cleanser, the cleanser of mixing can be once added in the feed postition of cleanser, be filtered after complete reaction, can also add
Enter a kind of cleanser and be just filtered after adding another cleanser after complete reaction, or a kind of cleanser is added and waits for
The reaction was complete and after being filtered to solution, then is refiltered after another cleanser is added into filtrate.To various cleansers
For dosage depending on impurity content in leachate after dephosphorization, preferable amount is by phosphate radical, one hydrogen radical of phosphoric acid, phosphoric acid in leachate
Two hydrogen radicals and heavy metal ion and alkaline-earth metal ions impurity content calculate the 100~150% of theoretical dosage, in order to avoid net
It is more preferably the 105~115% of theoretical amount that change machine, which causes the loss of lithium in leachate, dosage, is not limited herein.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention in step 4, add
It when entering soluble carbonate salt and preparing lithium carbonate, is filtered immediately from after in evaporative crystallization sinker, is not required to cool down until solution, it is right
It is washed with hot water when gained lithium carbonate is washed；When addition water soluble alkali prepares lithium hydroxide, needed after evaporative crystallization
It to carry out just being filtered upon cooling the solution, be washed with normal-temperature water when being washed to gained lithium hydroxide.To hot water
Temperature be not limited herein.
Extraction pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid of the present invention, using party's legal system
The purity of standby lithium carbonate and monohydrate lithium hydroxide is more than 99%, and phosphorus content is less than 10ppm.
Principle and advantage
The present invention has been attempted for the first time by phosphorus (including phosphate radical, one hydrogen radical of phosphoric acid, the biphosphate in phosphoric acid lithium waste residue
Root), heavy metal, lithium by the processing mode of different step successively separation, realize maximum to phosphoric acid lithium waste residue
Effective economic utilization.The present invention directly carries out leaching process using acid solution to phosphorus-containing waste slag, and passes through dephosphorization agent selectivity
Ground removes loss of the phosphate radical without causing lithium from gained leachate, and carries out deep purifying to the solution after dephosphorization and remove it
In the impurity such as heavy metal after sinker again, pure Lithium Carbonate or lithium hydroxide are obtained, to realize the efficient of phosphoric acid lithium waste residue
Increment utilizes.
Compared with existing preparation process, technical thought of the invention and technological principle have outstanding feature and technology excellent
Gesture is in particular in：
(1) method that pure Lithium Carbonate or lithium hydroxide are extracted in the lithium waste residue proposed by the present invention from phosphoric acid is a kind of complete
Wet process technology is not required to carry out roasting or the processing such as autoclaving to slag, and low energy consumption and will not cause exhaust gas discharge etc. for production process
Problem；
(2) dephosphorization of the present invention in the case where carrying out selecting acid condition first to the leachate of phosphoric acid lithium waste residue, both can be real
Existing phosphate radical and lithium efficiently separate, and will not cause the loss of lithium, to which the effect utilization ratio of phosphoric acid lithium waste residue can be improved；
(3) the method present invention of the invention when carrying out dephosphorization to the leachate of phosphoric acid lithium waste residue obtained by weight in phosphorus bearing slag
Metal ion content is low, heavy metal-polluted can stain soil without causing for producing phosphate fertilizer etc. after subsequent processing.For
The high filter residue of content of beary metal is used directly for smelting or be used as catalyst.
(4) present invention converts the lithium phosphate in phosphoric acid lithium waste residue to the widely used lithium carbonate of lithium ion battery industry
Or lithium hydroxide bulk raw material, it can reach the purpose that the increment of lithium phosphate waste residue utilizes.
Specific embodiment
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection domain.
Except there is a special instruction, the various reagents used in the present invention, raw material be can be commercially commodity or
Person can pass through product made from well known method.
Cation in the embodiment of the present invention contained by Dephosphorising agent R used and phosphate radical and/or one hydrogen radical of phosphoric acid and/or phosphoric acid
Two hydrogen radicals form compound M；
Described in the solubility ratio under room temperature or low temperature for the compound that the anion of the Dephosphorising agent R is formed with lithium ion
Big twice of the solubility or more of M；Retouched dephosphorization medicament is one or more of resolvability magnesium calcium sylvite, preferably carnallite with
Lime chloride presses 1：The mixture of 1 molar ratio,
The specific implementation mode of the present invention is as follows：
Embodiment one
It weighs 100g lithium phosphates waste residue and is mixed to form with a concentration of 8mol/L hydrochloric acid solutions after being fully ground dispersion
Liquid-solid ratio is 3:1 slurry, and it is stirred leaching process at normal temperatures, pickle liquor is obtained by filtration after leaching 30 minutes.By institute
Pickle liquor be heated to 40 DEG C after Dephosphorising agent R is added and continues stirring at this temperature makes it within 1 hour fully the reaction was complete, it is cooling
Filtering is to remove phosphate radical therein after to room temperature.It is added 10mL 2M's while stirring in gained filtrate after to removal phosphate radical
Continue stirring 30 minutes after KOH solution, adds 5mL 1M potassium oxalates, liquid is purified after filtering.Scavenging solution is heated to 80
DEG C and while stirring be added 2.8M sodium carbonate liquor 400mL, continue stirring filter immediately after sixty minutes, 90 DEG C of hot water is used in combination
3 washings are carried out to gained lithium carbonate, lithium carbonate sample is obtained after 180 DEG C of drying.The content of lithium carbonate is in sample
99.17%, phosphorus content 6.8ppm.
Embodiment two
Operating process is as in the first embodiment, only use vinegar acid instead of HCl, a concentration of 4.5mol/L of acetum, leachate is solid
Than being 5:1, extraction temperature be 55 DEG C, be added Dephosphorising agent after the reaction time be 30 minutes and be cooled to upon reaction completion 5 DEG C into
80 grams of NaOH of purified solution addition are prepared monohydrate lithium hydroxide by row filtering, and gained lithium hydroxide is carried out 3 times with normal-temperature water
Washing obtains monohydrate lithium hydroxide sample after 120 DEG C of drying.The content of monohydrate lithium hydroxide is 99.03% in sample, phosphorus content
1.9ppm。
Embodiment three
Operating process is as in the first embodiment, only use sulphur acid instead of HCl, and acid solutions 1mol/L, leaching liquid-solid ratio is
8:1, the reaction temperature being added after Dephosphorising agent is 80 DEG C, and the reaction time is 5 hours and is cooled to -5 DEG C of progress upon reaction completion
Filtering.The content of lithium carbonate is 99.09% in gained sample, phosphorus content 6.6ppm.
Example IV
Operating process is as in the first embodiment, only use first acid instead of HCl, and acid solutions 4mol/L, leaching liquid-solid ratio is
4:1, the reaction temperature being added after Dephosphorising agent is 45 DEG C, and the reaction time is 2 hours and is cooled to -5 DEG C of progress upon reaction completion
Filtering.The content of lithium carbonate is 99.21% in gained sample, phosphorus content 5.1ppm.
Embodiment five
Operating process is as in the first embodiment, only use sulphur acid instead of HCl, and acid solutions 3mol/L, leaching liquid-solid ratio is
4:1, the reaction temperature being added after Dephosphorising agent is 60 DEG C, and the reaction time is 2 hours and is cooled to 0 DEG C upon reaction completion and carried out
Filter.The content of lithium carbonate is 99.41% in gained sample, phosphorus content 1.1ppm.
Embodiment six
As in the first embodiment, only using vinegar acid instead of HCl, a concentration of 5mol/L of acetum leaches liquid-solid ratio for operating process
It is 5.5:1, extraction temperature be 45 DEG C, be added Dephosphorising agent after the reaction time be 30 minutes and be cooled to upon reaction completion 5 DEG C into
Row filtering.The content of lithium carbonate is 99.35% in gained sample, phosphorus content 1.6ppm.
Claims (10)
1. extracting pure Lithium Carbonate or the method for lithium hydroxide in a kind of lithium waste residue from phosphoric acid, it is characterised in that including following step
Suddenly：
Step 1
It is filtered after being leached with acid solution after lithium phosphate waste residue is ground, obtains pickle liquor；
Step 2
One gained pickle liquor of heating stepses, and Dephosphorising agent R is added thereto, being sufficiently stirred makes phosphate radical precipitate and lithium ion retains
In solution, waits for solution cooled and filtered, obtain filtrate and filter residue；At least one cation contained by the Dephosphorising agent R and phosphorus
Acid group and/or one hydrogen radical of phosphoric acid and/or the formed compound M of dihydrogen phosphate；The anion of the Dephosphorising agent R and lithium ion shape
At compound Q；In pickle liquor, at identical temperature, the ratio of the solubility and the solubility of compound M of compound Q is big
In 2；
Step 3
Cleanser is added into filtrate obtained by step 2, removes in filtrate after remaining foreign ion, filtering is purified liquid；
The foreign ion includes phosphate radical, one hydrogen radical of phosphoric acid, dihydrogen phosphate, heavy metal ion, alkaline-earth metal ions, Na ions, K
It is one or more in ion；
Step 4
Soluble carbonate salt or alkali are added into scavenging solution, is concentrated by evaporation, filters and obtain lithium carbonate or lithium hydroxide after washing.
2. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：Acid solution is selected from least one of formic acid, benzoic acid, acetic acid, sulfuric acid, hydrochloric acid, nitric acid in step 1
Aqueous solution.
3. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：A concentration of 1~8mol/L of acid solution in step 1.
4. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：The liquid-solid ratio of acid solution used and lithium phosphate slag is 3~8:1.
5. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：At identical temperature and same solution environment, the ratio of the solubility of compound Q and the solubility of compound M
Value is more than 5；The same solution environment includes pickle liquor after cooling.
6. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：The temperature range of hot acid-leaching liquid is 40~90 DEG C in step 2.
7. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：Dephosphorising agent R and the time range that pickle liquor is stirred to react are 0.5~5 hour in step 2.
8. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：Solution is cooled to -5~25 DEG C before filtering.
9. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：In step 3 cleanser be dissolvable sulfide, hydroxide, acetate, oxalates, in carbonate at least
It is a kind of.
10. pure Lithium Carbonate or the method for lithium hydroxide are extracted in a kind of lithium waste residue from phosphoric acid according to claim 1,
It is characterized in that：The purity of prepared lithium carbonate or monohydrate lithium hydroxide is more than 99wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187244.5A CN108285156B (en) | 2017-11-24 | 2017-11-24 | A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187244.5A CN108285156B (en) | 2017-11-24 | 2017-11-24 | A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108285156A true CN108285156A (en) | 2018-07-17 |
| CN108285156B CN108285156B (en) | 2019-10-25 |
Family
ID=62831594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711187244.5A Active CN108285156B (en) | 2017-11-24 | 2017-11-24 | A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108285156B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231242A (en) * | 2018-11-09 | 2019-01-18 | 江苏容汇通用锂业股份有限公司 | A kind of method that lithium phosphate disposing mother liquor prepares battery-stage monohydrate lithium hydroxide |
| CN109264748A (en) * | 2018-09-29 | 2019-01-25 | 广东邦普循环科技有限公司 | A method of lithium carbonate is prepared with crude lithium phosphate |
| CN110759364A (en) * | 2019-11-13 | 2020-02-07 | 江西金辉锂业有限公司 | Method for preparing high-purity lithium carbonate by using crude lithium phosphate |
| CN111139078A (en) * | 2020-01-10 | 2020-05-12 | 河海大学 | Improved expansive soil and preparation method, construction method and application thereof |
| CN111153419A (en) * | 2018-11-07 | 2020-05-15 | 全雄 | Method for extracting lithium |
| CN111470520A (en) * | 2020-05-20 | 2020-07-31 | 蜂巢能源科技有限公司 | Method for treating waste lithium battery material |
| CN111697282A (en) * | 2020-06-18 | 2020-09-22 | 中国科学院宁波材料技术与工程研究所 | Method for extracting lithium from dilute solution recovered from waste battery positive electrode material |
| CN112624161A (en) * | 2020-12-31 | 2021-04-09 | 江西南氏锂电新材料有限公司 | Method for preparing lithium carbonate by extracting lithium from mechanically activated lepidolite |
| US11821056B2 (en) | 2020-01-29 | 2023-11-21 | Uong CHON | Lithium extraction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110200508A1 (en) * | 2010-02-17 | 2011-08-18 | Simbol Mining Corp. | Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds |
| CN104220371A (en) * | 2012-04-05 | 2014-12-17 | Posco公司 | Method for manufacturing lithium hydroxide and method using the lithium hydroxide for manufacturing lithium carbonate |
| CN104884648A (en) * | 2012-12-21 | 2015-09-02 | 浦项产业科学研究院 | Method for extracting lithium from solution containing lithium |
-
2017
- 2017-11-24 CN CN201711187244.5A patent/CN108285156B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110200508A1 (en) * | 2010-02-17 | 2011-08-18 | Simbol Mining Corp. | Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds |
| CN104220371A (en) * | 2012-04-05 | 2014-12-17 | Posco公司 | Method for manufacturing lithium hydroxide and method using the lithium hydroxide for manufacturing lithium carbonate |
| CN104884648A (en) * | 2012-12-21 | 2015-09-02 | 浦项产业科学研究院 | Method for extracting lithium from solution containing lithium |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109264748A (en) * | 2018-09-29 | 2019-01-25 | 广东邦普循环科技有限公司 | A method of lithium carbonate is prepared with crude lithium phosphate |
| CN109264748B (en) * | 2018-09-29 | 2021-04-20 | 广东邦普循环科技有限公司 | Method for preparing lithium carbonate from crude lithium phosphate |
| CN111153419B (en) * | 2018-11-07 | 2022-08-09 | 全雄 | Method for extracting lithium |
| CN111153419A (en) * | 2018-11-07 | 2020-05-15 | 全雄 | Method for extracting lithium |
| CN109231242A (en) * | 2018-11-09 | 2019-01-18 | 江苏容汇通用锂业股份有限公司 | A kind of method that lithium phosphate disposing mother liquor prepares battery-stage monohydrate lithium hydroxide |
| CN110759364A (en) * | 2019-11-13 | 2020-02-07 | 江西金辉锂业有限公司 | Method for preparing high-purity lithium carbonate by using crude lithium phosphate |
| CN111139078A (en) * | 2020-01-10 | 2020-05-12 | 河海大学 | Improved expansive soil and preparation method, construction method and application thereof |
| US11821056B2 (en) | 2020-01-29 | 2023-11-21 | Uong CHON | Lithium extraction method |
| CN111470520A (en) * | 2020-05-20 | 2020-07-31 | 蜂巢能源科技有限公司 | Method for treating waste lithium battery material |
| CN111470520B (en) * | 2020-05-20 | 2023-08-18 | 蜂巢能源科技有限公司 | Method for treating waste lithium battery material |
| CN111697282A (en) * | 2020-06-18 | 2020-09-22 | 中国科学院宁波材料技术与工程研究所 | Method for extracting lithium from dilute solution recovered from waste battery positive electrode material |
| CN111697282B (en) * | 2020-06-18 | 2021-11-02 | 中国科学院宁波材料技术与工程研究所 | Method for extracting lithium from dilute solution recovered from waste battery positive electrode material |
| CN112624161B (en) * | 2020-12-31 | 2022-11-01 | 江西南氏锂电新材料有限公司 | Method for preparing lithium carbonate by extracting lithium from mechanically activated lepidolite |
| CN112624161A (en) * | 2020-12-31 | 2021-04-09 | 江西南氏锂电新材料有限公司 | Method for preparing lithium carbonate by extracting lithium from mechanically activated lepidolite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108285156B (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108285156B (en) | A method of extracting pure Lithium Carbonate or lithium hydroxide from phosphoric acid lithium waste residue | |
| CN109088115B (en) | Method for preparing ternary cathode material by recycling waste lithium ion battery cathode material | |
| CN111392750B (en) | Method for removing impurities and recovering lithium from waste lithium ion batteries | |
| WO2013118300A1 (en) | Method for recovering lithium | |
| CN110343864B (en) | Method for recovering lithium and cobalt in waste electrode material by microwave roasting assistance | |
| JP5488376B2 (en) | Lithium recovery method | |
| CN108075202A (en) | A kind of comprehensive recovering process of lithium iron phosphate positive material | |
| CN106340692B (en) | A method of lithium in cleaning recycling positive electrode | |
| CN109097581A (en) | The recovery method of valuable metal in waste and old nickel cobalt manganese lithium ion battery | |
| CN110835683B (en) | Method for selectively extracting lithium from waste lithium ion battery material | |
| WO2013114621A1 (en) | Lithium recovery method | |
| JP2012121780A (en) | Method for manufacturing lithium oxide | |
| CN111180819B (en) | Preparation method of battery-grade Ni-Co-Mn mixed solution and battery-grade Mn solution | |
| JP2012106874A (en) | Method for purifying lithium hydroxide | |
| CN113793994B (en) | Method for recycling waste lithium iron phosphate batteries | |
| CN109004307A (en) | The recyclable device of valuable metal in waste and old nickel cobalt manganese lithium ion battery | |
| CN108396158A (en) | A kind of processing method of the complex salt crystal object of electrolytic manganese process | |
| JP2012041621A (en) | Method for recovering lithium | |
| CN108281726B (en) | Method for extracting lithium hydroxide from lithium phosphate-containing waste residues | |
| CN114506834A (en) | Treatment method of waste lithium iron phosphate powder and carbon-coated lithium iron phosphate | |
| CN111924816A (en) | Method for recovering electrolyte of waste lithium ion battery | |
| CN116553502A (en) | Method for effectively recycling anode material of waste lithium iron phosphate battery | |
| CN102628105B (en) | Method for comprehensively recycling and using baric waste slag in refined aluminum production process | |
| CN116706302A (en) | Lithium battery recycling method | |
| CN115821033A (en) | Eutectic solvent and method for recycling lithium battery positive electrode material |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: Room 311, 3rd floor, Huashi village office building, Tongguan circular economy industrial park, Wangcheng economic and Technological Development Zone, Changsha, Hunan 410000 Patentee after: Hunan Yongshan Lithium Industry Co.,Ltd. Address before: Yuelu District City, Hunan province 410083 Changsha Lushan Road No. 932 Patentee before: CENTRAL SOUTH University |