WO1989008723A1 - Recovery of lithium from a lithium bearing silicate ore - Google Patents
Recovery of lithium from a lithium bearing silicate ore Download PDFInfo
- Publication number
- WO1989008723A1 WO1989008723A1 PCT/GB1989/000235 GB8900235W WO8908723A1 WO 1989008723 A1 WO1989008723 A1 WO 1989008723A1 GB 8900235 W GB8900235 W GB 8900235W WO 8908723 A1 WO8908723 A1 WO 8908723A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium
- alkali metal
- process according
- chloride
- recovery
- Prior art date
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 19
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012141 concentrate Substances 0.000 claims abstract description 6
- 229910001413 alkali metal ion Inorganic materials 0.000 claims abstract description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 21
- 239000001103 potassium chloride Substances 0.000 claims description 11
- 235000011164 potassium chloride Nutrition 0.000 claims description 11
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical group [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052642 spodumene Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 17
- 239000007787 solid Substances 0.000 description 11
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
Classifications
-
- 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
-
- 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 the recovery of lithium containing ores and more particularly to the recovery of lithium from lithium bearing silicate ores.
- the product from the reactor is a solid containing potassium spodumene and there is too much residual potassium chloride present for the solid to be fed directly to electrolysis cells for recovery of metallic lithium.
- the salts are leached from the reactor solid and the lithium subsequently precipitated as lithium carbonate by the addition of sodium carbonate and then presumably the lithium carbonate is reacted with hydrochloric acid to form lithium chloride.
- This entails the consumption of sodium carbonate and hydrochloric acid and the discarding of the resultant waste solution.
- the present invention involves less reactant consumption and may enable recycling of the salt to the reactor after the extraction of the lithium.
- a process for the recovery of lithium from a lithium bearing silicate ore comprising the steps of (a) mixing a concentrate of the lithium bearing silicate ore with an alkali metal chloride at a mole ratio of 1 to 7 of lithium ion to alkali metal ion, (b) heating the mixture at a temperature of 900 to 1300*C, and (c) grinding the residue with water-free ethanol to thereby selectively remove the lithium ion.
- the lithium ion (in the form of lithium chloride) may then be separated from the ethanol by, say, evaporation and the ethanol recycled to the grinding stage.
- the solids coated with ethanol may then be further dried e.g. in a fluidised bed at 100'C and the ethanol also recycled. High purity lithium may then be obtained by a conventional molten salt electrolytic process.
- the lithium bearing silicate ore is preferably spodumene of formula Li2 ⁇ .AI2O3.4Si ⁇ 2-
- the alkali metal chloride may be either a single salt such as potassium chloride or a mixture of alkali metal chlorides. In the case where the alkali metal is potassium chloride, it is preferred that the ratio of concentrate to potassium chloride has a mole ratio of about 1:2.5 (Li + :K + ).
- the temperature of the process is preferably 950*C to 1200*C at atmospheric pressure and elevated pressures may also be used.
- the reaction time of step (b) may vary from about 10 minutes to 3 hours.
- the lithium bearing silicate ore (spodumene) is ground to a suitable particle size in a ball mill 1 and mixed with an alkali metal chloride in a solids mixer 2.
- the mixture is passed to a rotary kiln 3 and subjected to heat treatment at about llOO'C.
- a typical time period for the heat treatment is from 15 to 60 minutes.
- the alkali metal chloride is usually potassium or sodium chloride but may also be a mixture of chlorides.
- the solid reacted mixture was then passed to a rotary cooler 4 at about 50*C and thence ground in a ball mill 5.
- the ground solid reacted mixture was then passed to an ethanol leach system for treatment with water free ethanol.
- the system comprises three stirred baths 6 arranged in series, the slurry passing through the baths successively.
- the product from the final bath consists of two streams, a solution stream of lithium salt (chloride) dissolved in ethanol and a solids stream (wet with ethanol).
- the solution stream of lithium chloride in ethanol is passed to a spray drying system 7 in which the ethanol is evaporated off and recovered for subsequent re-use in the process.
- the resultant lithium chloride solids are then passed to an electrolysis cell 8 to produce the lithium metal.
- the ethanol wet solids stream is dried (the evaporated ethanol being subsequently re-used) and subjected to a water leach process in the stirred vessel 9 to recover dry potassium chloride for subsequent re-use in the process from the waste silicate solids using filter 10, crystalliser 11 and dryer 12.
- the drawing shows a schematic flowsheet for the recovery of lithium metal from a spodumene concentrate.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Process for the recovery of lithium from a lithium bearing silicate ore in which a concentrate of the lithium bearing silicate ore is mixed with an alkali metal chloride at a mole ratio of 1 to 7 of lithium ion to alkali metal ion. The mixture is heated at a temperature of 900 to 1300°C and the residue is ground with water free ethanol to thereby selectively remove the lithium ion.
Description
RECOVERY OF LITHIUM FROM A LITHIUM BEARING SILICATE ORE
The present invention relates to the recovery of lithium containing ores and more particularly to the recovery of lithium from lithium bearing silicate ores.
A number of processes have been proposed for the recovery of lithium from ores. For example, treatment of the ore with a strong acid to dissolve the lithium. However, recovery of the lithium values in a pure state is rendered difficult by the co-dissolution of other metals in the ore such as aluminium or iron which acts as contaminants. It is known (US 2893828) to recover lithium from lithium bearing silicates such as spodumene by mixing with an alkali metal halide such as potassium chloride and a refractory material such as silica and heating at a temperature between about 980*C and 1100'C until substantially all of the lithium has been converted to lithium chloride. The lithium chloride is then extracted from the residue by water leaching.
In the process of US 2893838 the product from the reactor is a solid containing potassium spodumene and there is too much residual potassium chloride present for the solid to be fed directly to electrolysis cells for recovery of metallic lithium. In US 2893828 the salts are leached from the reactor solid and the lithium subsequently precipitated as lithium carbonate by the addition of sodium carbonate and then presumably the lithium carbonate is reacted with hydrochloric acid to form lithium chloride. This entails the consumption of sodium carbonate and hydrochloric acid
and the discarding of the resultant waste solution. The present invention involves less reactant consumption and may enable recycling of the salt to the reactor after the extraction of the lithium. Thus according to the present invention there is provided a process for the recovery of lithium from a lithium bearing silicate ore comprising the steps of (a) mixing a concentrate of the lithium bearing silicate ore with an alkali metal chloride at a mole ratio of 1 to 7 of lithium ion to alkali metal ion, (b) heating the mixture at a temperature of 900 to 1300*C, and (c) grinding the residue with water-free ethanol to thereby selectively remove the lithium ion.
The lithium ion (in the form of lithium chloride) may then be separated from the ethanol by, say, evaporation and the ethanol recycled to the grinding stage. The solids coated with ethanol may then be further dried e.g. in a fluidised bed at 100'C and the ethanol also recycled. High purity lithium may then be obtained by a conventional molten salt electrolytic process.
The lithium bearing silicate ore is preferably spodumene of formula Li2θ.AI2O3.4Siθ2- The alkali metal chloride may be either a single salt such as potassium chloride or a mixture of alkali metal chlorides. In the case where the alkali metal is potassium chloride, it is preferred that the ratio of concentrate to potassium chloride has a mole ratio of about 1:2.5 (Li+:K+). The temperature of the process is preferably 950*C to 1200*C at atmospheric pressure and elevated pressures may also be used. The reaction time of step (b) may vary from about 10 minutes to 3 hours.
In an embodiment of the present process, by use of potassium chloride only in the reactor ion exchange step, on cooling the potassium chloride and lithium chloride form a simple eutectic whereas the presence of sodium chloride allows the formation of a sodium chloride/lithium chloride compound. It is therefore much more straightforward to leach lithium chloride from a discrete phase, as in a eutectic, than from a compound. The invention will now be described by way of example only and
with reference to the accompanying drawing.
The lithium bearing silicate ore (spodumene) is ground to a suitable particle size in a ball mill 1 and mixed with an alkali metal chloride in a solids mixer 2. The mixture is passed to a rotary kiln 3 and subjected to heat treatment at about llOO'C. A typical time period for the heat treatment is from 15 to 60 minutes. The alkali metal chloride is usually potassium or sodium chloride but may also be a mixture of chlorides. The solid reacted mixture was then passed to a rotary cooler 4 at about 50*C and thence ground in a ball mill 5.
The ground solid reacted mixture was then passed to an ethanol leach system for treatment with water free ethanol. The system comprises three stirred baths 6 arranged in series, the slurry passing through the baths successively. The product from the final bath consists of two streams, a solution stream of lithium salt (chloride) dissolved in ethanol and a solids stream (wet with ethanol).
The solution stream of lithium chloride in ethanol is passed to a spray drying system 7 in which the ethanol is evaporated off and recovered for subsequent re-use in the process. The resultant lithium chloride solids are then passed to an electrolysis cell 8 to produce the lithium metal.
The ethanol wet solids stream is dried (the evaporated ethanol being subsequently re-used) and subjected to a water leach process in the stirred vessel 9 to recover dry potassium chloride for subsequent re-use in the process from the waste silicate solids using filter 10, crystalliser 11 and dryer 12.
The drawing shows a schematic flowsheet for the recovery of lithium metal from a spodumene concentrate.
Claims
1. A process for the recovery of lithium from a lithium bearing silicate ore comprising the steps of (a) mixing a concentrate of the lithium bearing silicate ore with an alkali metal chloride at a mole ratio of 1 to 7 of lithium ion to alkali metal ion, (b) heating the mixture at a temperature of 900 to 1300*C, and (c) grinding the residue with water-free ethanol to thereby selectively remove the lithium ion.
2. A process according to claim 1 in which the lithium bearing silicate ore is spodumene.
3. A process according to claim 1 or claim 2 in which the alkali metal chloride is in the form of a single or a mixture of alkali metal chloride.
4. A process according to any of claims 1 to 3 in which the alkali metal chloride is potassium chloride and the ratio of concentrate to potassium chloride has a mole ratio of about 1:2.5 (Li+:K+).
5. A process according to any of the preceding claims in which the temperature is from 950*C to 1200*C.
6. A process according to any of the preceding claims in which the reaction time of step (b) is from 10 minutes to 3 hours.
7. A process according to any of the preceding claims in which high purity lithium is obtained from the lithium ion by a molten salt electrolyic process.
8. Lithium whenever produced by a process according to any of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8806334A GB8806334D0 (en) | 1988-03-17 | 1988-03-17 | Recovery process |
| GB8806334 | 1988-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1989008723A1 true WO1989008723A1 (en) | 1989-09-21 |
Family
ID=10633596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB1989/000235 WO1989008723A1 (en) | 1988-03-17 | 1989-03-09 | Recovery of lithium from a lithium bearing silicate ore |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU3355389A (en) |
| GB (1) | GB8806334D0 (en) |
| WO (1) | WO1989008723A1 (en) |
| ZW (1) | ZW3689A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892394B (en) * | 2009-12-18 | 2013-07-24 | 中南大学 | Method and device for extracting lithium from lithium mica |
| RU2531019C1 (en) * | 2013-09-16 | 2014-10-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Mix material for extraction of lithium from lithium concentrates mix |
| RU2547052C1 (en) * | 2013-12-09 | 2015-04-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Method of lithium concentrate processing |
| RU2546952C1 (en) * | 2013-12-03 | 2015-04-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имеми первого Президента России Б.Н. Ельцина" | Method of working of lithium concentrates mixture |
| RU2547366C2 (en) * | 2013-02-25 | 2015-04-10 | Акционерное общество "Ульбинский металлургический завод" | Method of processing beryllium fluorite-containing concentrates |
| RU2624749C2 (en) * | 2015-12-01 | 2017-07-06 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of obtaining beryllium oxide and beryllium metal |
| RU2646296C1 (en) * | 2017-05-02 | 2018-03-02 | Федеральное государственное автономное образовательное учреждение высшего образования Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Lepidolithic concentrate processing method |
| RU2663021C1 (en) * | 2017-07-17 | 2018-08-01 | Акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method of lithuania extraction from sphodumene |
| WO2020257074A1 (en) * | 2019-06-21 | 2020-12-24 | Xerion Advanced Battery Corp. | Methods for extracting lithium from spodumene |
| KR20210080058A (en) * | 2019-12-20 | 2021-06-30 | 주식회사 포스코 | Method of extracting lithium from lithium-containing ore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB269878A (en) * | 1926-04-22 | 1927-09-08 | Metallbank & Metallurg Ges Ag | Process of treating lithium-containing silicates by means of neutral alkali salts |
| US2893828A (en) * | 1954-08-09 | 1959-07-07 | Int Minerals & Chem Corp | Lithium values recovery process |
| US3268290A (en) * | 1963-11-04 | 1966-08-23 | Dow Chemical Co | Recovery of lithium chloride from mixtures of other salts and metals |
| EP0250342A1 (en) * | 1986-06-18 | 1987-12-23 | Pechiney | Process for recovering aluminium and lithium from metallic scrap |
| JPS63140096A (en) * | 1986-12-02 | 1988-06-11 | Sumitomo Light Metal Ind Ltd | Production of high-purity metal lithium |
-
1988
- 1988-03-17 GB GB8806334A patent/GB8806334D0/en active Pending
-
1989
- 1989-03-09 AU AU33553/89A patent/AU3355389A/en not_active Abandoned
- 1989-03-09 WO PCT/GB1989/000235 patent/WO1989008723A1/en unknown
- 1989-03-15 ZW ZW3689A patent/ZW3689A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB269878A (en) * | 1926-04-22 | 1927-09-08 | Metallbank & Metallurg Ges Ag | Process of treating lithium-containing silicates by means of neutral alkali salts |
| US2893828A (en) * | 1954-08-09 | 1959-07-07 | Int Minerals & Chem Corp | Lithium values recovery process |
| US3268290A (en) * | 1963-11-04 | 1966-08-23 | Dow Chemical Co | Recovery of lithium chloride from mixtures of other salts and metals |
| EP0250342A1 (en) * | 1986-06-18 | 1987-12-23 | Pechiney | Process for recovering aluminium and lithium from metallic scrap |
| JPS63140096A (en) * | 1986-12-02 | 1988-06-11 | Sumitomo Light Metal Ind Ltd | Production of high-purity metal lithium |
Non-Patent Citations (1)
| Title |
|---|
| Patent Abstracts of Japan, vol. 12, no. 398 (C-538)(3245), 21 October 1988, & JP-A-63140096 (SUMITOMO LIGHT METAL IND. LTD) 11 Juni 1988 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892394B (en) * | 2009-12-18 | 2013-07-24 | 中南大学 | Method and device for extracting lithium from lithium mica |
| RU2547366C2 (en) * | 2013-02-25 | 2015-04-10 | Акционерное общество "Ульбинский металлургический завод" | Method of processing beryllium fluorite-containing concentrates |
| RU2531019C1 (en) * | 2013-09-16 | 2014-10-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Mix material for extraction of lithium from lithium concentrates mix |
| RU2546952C1 (en) * | 2013-12-03 | 2015-04-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имеми первого Президента России Б.Н. Ельцина" | Method of working of lithium concentrates mixture |
| RU2547052C1 (en) * | 2013-12-09 | 2015-04-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Method of lithium concentrate processing |
| RU2624749C2 (en) * | 2015-12-01 | 2017-07-06 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of obtaining beryllium oxide and beryllium metal |
| RU2646296C1 (en) * | 2017-05-02 | 2018-03-02 | Федеральное государственное автономное образовательное учреждение высшего образования Уральский федеральный университет имени первого Президента России Б.Н. Ельцина | Lepidolithic concentrate processing method |
| RU2663021C1 (en) * | 2017-07-17 | 2018-08-01 | Акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method of lithuania extraction from sphodumene |
| WO2020257074A1 (en) * | 2019-06-21 | 2020-12-24 | Xerion Advanced Battery Corp. | Methods for extracting lithium from spodumene |
| EP3987069A4 (en) * | 2019-06-21 | 2023-07-12 | Xerion Advanced Battery Corp. | Methods for extracting lithium from spodumene |
| KR20210080058A (en) * | 2019-12-20 | 2021-06-30 | 주식회사 포스코 | Method of extracting lithium from lithium-containing ore |
| KR102400897B1 (en) * | 2019-12-20 | 2022-05-20 | 주식회사 포스코 | Method of extracting lithium from lithium-containing ore |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8806334D0 (en) | 1988-04-13 |
| ZW3689A1 (en) | 1989-08-23 |
| AU3355389A (en) | 1989-10-05 |
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