KR102711082B1 - 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법 - Google Patents
배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법 Download PDFInfo
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- KR102711082B1 KR102711082B1 KR1020210125166A KR20210125166A KR102711082B1 KR 102711082 B1 KR102711082 B1 KR 102711082B1 KR 1020210125166 A KR1020210125166 A KR 1020210125166A KR 20210125166 A KR20210125166 A KR 20210125166A KR 102711082 B1 KR102711082 B1 KR 102711082B1
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- lithium carbonate
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- 238000000034 method Methods 0.000 title claims abstract description 41
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 title claims abstract description 33
- 229910052808 lithium carbonate Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 64
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000001556 precipitation Methods 0.000 claims abstract description 40
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000012452 mother liquor Substances 0.000 claims abstract description 27
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 15
- 239000011734 sodium Substances 0.000 claims abstract description 15
- 239000011737 fluorine Substances 0.000 claims abstract description 13
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 13
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000008020 evaporation Effects 0.000 claims abstract description 11
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 35
- 239000011574 phosphorus Substances 0.000 claims description 35
- 229910052698 phosphorus Inorganic materials 0.000 claims description 35
- 229910001385 heavy metal Inorganic materials 0.000 claims description 23
- 239000000243 solution Substances 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000002386 leaching Methods 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 239000012670 alkaline solution Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 125000005586 carbonic acid group Chemical group 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 3
- STJUJXONQFLCOP-UHFFFAOYSA-L lithium;sodium;carbonate Chemical compound [Li+].[Na+].[O-]C([O-])=O STJUJXONQFLCOP-UHFFFAOYSA-L 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000000605 extraction Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- 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
- 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
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/02—Preparation of sulfates from alkali metal salts and sulfuric acid or bisulfates; Preparation of bisulfates
-
- 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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Secondary Cells (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
Claims (10)
- 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법에 있어서,
이하의 단계,
1) 배터리재료 추잔액에 지르코늄 기반 불소제거제를 첨가해 불소를 제거하여 불소 함유량이 3mg/L보다 적은 불소제거 후의 액체를 얻는, 불소제거단계;
2) 불소제거 후의 액체에 대해 인 제거제를 통해 인 제거를 진행하고, 얻은 찌꺼기는 교반, 세척, 압출과 여과를 거친 후 폐기하는, 인 제거 단계;
3) 인을 제거한 후의 액체에 액체 보조재를 첨가하여 중금속을 침강하고, 중금속을 침전시킨 후, 압출 여과와 분리를 통해 중금속 침강 모액과 중금속 침강 찌꺼기를 얻는, 중금속을 침강 하는 단계;
4) 중금속 침강 모액에 산성 용액을 첨가하여 pH를 산성까지 조절하고, 잔존 탄산기를 제거한 후에 알칼리성 용액을 첨가하여 pH를 중성까지 조절하는, 산성-알칼리성 조절 단계;
5) 산성-알칼리성 조절 후의 배터리재료 추잔액을 이중효과 순환 증발을 통해 황산나트륨을 석출해 내는 동시에, 리튬 농도를 향상시키는, 증발 농축 단계;
6) 단계 5)에서 얻은 농축 모액에 탄산염을 첨가하고 리튬 침강을 진행하고, 여과와 분리를 거친 후에 조제 탄산 리튬 제품을 얻는 리튬 침강 단계;를 포함하고,
상기 배터리재료 추잔액에서, Li 함유량은 0.5~5g/L이고, 나트륨 함유량은 30~80g/L이고, 중금속 함유량은 0.5~2g/L이고, 불소 함유량은 50~150mg/L이고, 인 함유량은 30~60mg/L인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항에 있어서,
단계 1)에서, 상기 지르코늄 기반 불소제거제는 흡착 상한에 도달한 후, 재생 순환을 진행해 이용하는 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항에 있어서,
단계 1)에서, 상기 지르코늄 기반 불소제거제의 주요 함량은 ZrO2+TIO2≥33wt%인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항 또는 제2항에 있어서,
단계 2)에서, 중금속 침강 찌꺼기는 침출 공법을 통해 유가금속을 회수하는 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 삭제
- 제1항 또는 제2항에 있어서,
단계 2)에서, 상기 인 제거제는 황산철, 수산화 칼슘과 황산알루미늄 중 하나 또는 다수 개의 혼합물이고, 질량 농도를 10%~30%로 배합한 후에 사용하고, 인 제거제 용액의 첨가 질량은 배터리재료 추잔액 질량의 0.01%~0.02%이고, 인 제거 pH는 3~10이고, 온도는 상온이고, 반응시간은 10~90min인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항 또는 제2항에 있어서,
단계 3)에서, 상기 액체 보조재는 탄산기를 함유하는 리튬 침강 모액이고, 리튬 침강 모액과 인 제거 후 액체의 첨가 비율은 1/5~1:1이고, 반응 온도는 50℃~70℃이고, 반응시간은 50~120min이고, 반응 pH는 8.5~13인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항 또는 제2항에 있어서,
단계 4)에서, 이용하는 산성 용액은 95wt%~98wt%의 황산 용액이고, 이용하는 알칼리성 용액은 30wt%~32wt%의 액체 수산화 나트륨이고, 산성 조절 pH 는 3~6이고, 알칼리성 조절 pH는 6~9인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항 또는 제2항에 있어서,
단계 5)에서, 증발 농축비는 3~10배이고, 증발 모액의 리튬 농도는 10~20g/L인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법. - 제1항 또는 제2항에 있어서,
단계 6)에서, 선택된 탄산염은 탄산나트륨이고, 질량 농도는25%~32%이고, 리튬을 침강하는 과정에서 이용하는 멀티드롭 분산 방식은 농축 모액을 첨가하고, 리튬 침강 온도는 80℃보다 높고, 리튬 침강 시간은 0.5~3h이고, 순수 알칼리 첨가량은 이론량의 1.05~1.15배인 것을 특징으로 하는 배터리재료 추잔액에서 조제 탄산 리튬을 회수해 제조하는 방법.
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CN202110814246.2 | 2021-07-19 | ||
CN202110814246.2A CN113582206A (zh) | 2021-07-19 | 2021-07-19 | 一种从电池料萃余液中回收制备粗制碳酸锂的方法 |
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