WO2013180174A1 - シュウ酸を配位子とする金属錯体精製物及び該金属錯体の非水溶媒精製溶液の製造方法 - Google Patents
シュウ酸を配位子とする金属錯体精製物及び該金属錯体の非水溶媒精製溶液の製造方法 Download PDFInfo
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- WO2013180174A1 WO2013180174A1 PCT/JP2013/064903 JP2013064903W WO2013180174A1 WO 2013180174 A1 WO2013180174 A1 WO 2013180174A1 JP 2013064903 W JP2013064903 W JP 2013064903W WO 2013180174 A1 WO2013180174 A1 WO 2013180174A1
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- WIPO (PCT)
- Prior art keywords
- oxalic acid
- metal complex
- ligand
- solution
- oxalato
- Prior art date
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- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 title claims abstract description 342
- 235000006408 oxalic acid Nutrition 0.000 title claims abstract description 114
- 150000004696 coordination complex Chemical class 0.000 title claims abstract description 45
- 239000003446 ligand Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000003125 aqueous solvent Substances 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 65
- -1 thionyl halide Chemical class 0.000 claims abstract description 56
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 24
- 239000000243 solution Substances 0.000 claims description 111
- 239000002904 solvent Substances 0.000 claims description 53
- 238000000746 purification Methods 0.000 claims description 30
- 229910052744 lithium Inorganic materials 0.000 claims description 27
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 26
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 24
- 229910019142 PO4 Inorganic materials 0.000 claims description 20
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 19
- 239000010452 phosphate Substances 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 16
- 238000002425 crystallisation Methods 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 14
- 230000008025 crystallization Effects 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 10
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 239000007983 Tris buffer Substances 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 3
- HFRXJVQOXRXOPP-UHFFFAOYSA-N thionyl bromide Chemical compound BrS(Br)=O HFRXJVQOXRXOPP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007773 negative electrode material Substances 0.000 claims description 2
- 229910001414 potassium ion Inorganic materials 0.000 claims description 2
- 239000012264 purified product Substances 0.000 claims description 2
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 54
- 239000002253 acid Substances 0.000 description 22
- 238000004448 titration Methods 0.000 description 22
- 235000021317 phosphate Nutrition 0.000 description 17
- 239000007787 solid Substances 0.000 description 17
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 15
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 229910052736 halogen Inorganic materials 0.000 description 11
- 150000002367 halogens Chemical class 0.000 description 11
- 239000005049 silicon tetrachloride Substances 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 238000005481 NMR spectroscopy Methods 0.000 description 10
- 208000012839 conversion disease Diseases 0.000 description 10
- 239000011521 glass Substances 0.000 description 10
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 10
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 10
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 9
- 229910052801 chlorine Inorganic materials 0.000 description 9
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 8
- 239000008151 electrolyte solution Substances 0.000 description 7
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 7
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- 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 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002685 polymerization catalyst Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910000039 hydrogen halide Inorganic materials 0.000 description 2
- 239000012433 hydrogen halide Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 2
- HZNVUJQVZSTENZ-UHFFFAOYSA-N 2,3-dichloro-5,6-dicyano-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O HZNVUJQVZSTENZ-UHFFFAOYSA-N 0.000 description 1
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- ICRGCTYTLVGZOU-UHFFFAOYSA-N ctk4c2791 Chemical compound FS(Cl)=O ICRGCTYTLVGZOU-UHFFFAOYSA-N 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- DWYMPOCYEZONEA-UHFFFAOYSA-L fluoridophosphate Chemical compound [O-]P([O-])(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-L 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000004693 imidazolium salts Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- 125000005497 tetraalkylphosphonium group Chemical group 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
- C07F9/6574—Esters of oxyacids of phosphorus
- C07F9/65742—Esters of oxyacids of phosphorus non-condensed with carbocyclic rings or heterocyclic rings or ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
- C07B63/02—Purification; Separation; Stabilisation; Use of additives by treatment giving rise to a chemical modification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/02—Boron compounds
- C07F5/022—Boron compounds without C-boron linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
- C07F9/6574—Esters of oxyacids of phosphorus
- C07F9/65744—Esters of oxyacids of phosphorus condensed with carbocyclic or heterocyclic rings or ring systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Definitions
- the present invention relates to a non-aqueous electrolyte battery electrolyte, a polymerization catalyst such as polyolefin, a purified metal complex having oxalic acid as a ligand used as a catalyst for organic synthesis, and a non-aqueous solvent purified solution of the metal complex It is related with the manufacturing method.
- oxalic acid as a ligand such as lithium difluoro (oxalato) borate, lithium bis (oxalato) borate, and difluorobis (oxalato) phosphate are non-aqueous electrolysis such as lithium ion batteries and lithium ion capacitors. It is a substance useful as an electrolyte for liquid batteries, a polymerization catalyst such as polyolefin, and a catalyst for organic synthesis.
- Patent Document 1 discloses tetrafluoroborate or hexafluoro A method is known in which a fluorophosphate and oxalic acid are reacted in an organic solvent in the presence of a reaction aid such as silicon tetrachloride.
- Patent Document 2 describes a method of reacting phosphorus pentachloride and oxalic acid in an organic solvent as a method for producing tris (oxalato) phosphoric acid. Furthermore, a method of obtaining a tris (oxalato) phosphate metal salt by reacting with a hydride and an organometallic compound is also described.
- a crystallization method is used for purification of these complex salts, but in the case of a crystallization method using a non-aqueous solvent, oxalic acid remaining as a raw material often precipitates together.
- the concentration of free acid present in the non-aqueous solvent solution is converted to hydrofluoric acid from the viewpoint of preventing corrosion of the electrodes.
- a product having a quality of about 200 ppm by mass or less is required, and repurification is required when such a high-purity compound is required.
- An object of the present invention is to provide a method for industrially producing a purified metal complex using oxalic acid as a ligand and a nonaqueous solvent purified solution of the metal complex at low cost.
- the present inventors decomposed oxalic acid present in the solution by reaction with thionyl halide, and degassed the decomposition product and unreacted thionyl halide.
- a production method capable of industrially purifying a complex having oxalic acid as a ligand at low cost was found, and the present invention was achieved.
- the present invention provides a method for decomposing and removing impurities from a non-aqueous solvent solution of a metal complex containing oxalic acid as an impurity and containing oxalic acid as a ligand,
- a method for producing an aqueous solvent purification solution comprising: Oxalic acid present in the solution as an impurity is reacted and decomposed with thionyl halide in a nonaqueous solvent to degas and remove the reaction decomposition product and unreacted thionyl halide.
- the present invention relates to a method for producing a non-aqueous solvent purification solution of a metal complex used as a ligand.
- the thionyl halide is preferably thionyl fluoride (SOF 2 ), thionyl fluoride chloride (SOFCl), thionyl chloride (SOCl 2 ), thionyl bromide (SOBr 2 ), thionyl chloride (SOCl 2 ), odor More preferred is thionyl chloride (SOBr 2 ).
- the metal complexes having oxalic acid as a ligand are difluoro (oxalato) borate, bis (oxalato) borate, difluorobis (oxalato) phosphate, tetrafluoro (oxalato) phosphate, tris (oxalato). ) It is preferably at least one selected from the group consisting of phosphates and mixtures thereof.
- the counter cation of the metal complex having oxalic acid as a ligand is not particularly limited, and examples thereof include metal cations such as lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, barium, silver, copper, and iron. And onium cations such as tetraalkylammonium, tetraalkylphosphonium, imidazolium derivatives, and the like.
- metal cations such as lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, barium, silver, copper, and iron.
- onium cations such as tetraalkylammonium, tetraalkylphosphonium, imidazolium derivatives, and the like.
- lithium ions, sodium ions, potassium ions, and tetraalkylammonium ions are preferred.
- the temperature during the reaction decomposition with thionyl halide is preferably in the range of 10 ° C to 100 ° C.
- the temperature for degassing and removing the reaction decomposition product and unreacted thionyl halide is preferably in the range of 0 ° C. to 150 ° C.
- the amount of thionyl halide added is preferably reacted in the range of 10 mol or less of thionyl halide to 1 mol of oxalic acid. Furthermore, it is preferable to react oxalic acid and thionyl halide in a molar ratio range of 1: 0.1 to 1:10. In particular, oxalic acid and thionyl halide are preferably reacted in a molar ratio of 1: 1 to 1:10. It is preferable to make it react in the range of ratio.
- crystallization purification may be further performed after deaeration and removal in the above production method.
- the present invention also relates to a non-aqueous solvent purification solution of a metal complex having oxalic acid as a ligand, obtained using the above production method.
- the present invention also relates to a purified metal complex obtained by using the above production method and having oxalic acid as a ligand.
- the present invention also provides a non-aqueous electrolyte comprising at least a positive electrode, a negative electrode made of lithium or a negative electrode material capable of occluding and releasing lithium, and a non-aqueous electrolyte battery electrolyte comprising a non-aqueous solvent and a solute.
- a purified product of a metal complex having oxalic acid as a ligand and / or a non-aqueous solvent purification solution of a metal complex having oxalic acid as a ligand obtained by using the above production method
- the present invention relates to a non-aqueous electrolyte battery.
- a purified metal complex having a ligand of oxalic acid which is useful as an electrolyte for non-aqueous electrolyte batteries, a polymerization catalyst such as polyolefin, and a catalyst for organic synthesis, and a non-aqueous solvent purified solution of the metal complex It can be manufactured inexpensively and industrially.
- oxalic acid present in a nonaqueous solvent solution of a metal complex having oxalic acid as a ligand is reacted with a thionyl halide in a nonaqueous solvent. It is characterized by decomposing and degassing and removing the reaction decomposition product and unreacted thionyl halide.
- the reaction between thionyl halide and oxalic acid is represented by the following formula. SOX 2 + (COOH) 2 ⁇ 2HX + SO 2 + CO + CO 2 (In the formula, X means a halogen atom)
- the amount of oxalic acid to be removed varies depending on the use.
- the use is an electrolyte for a non-aqueous electrolyte battery or an additive for a non-aqueous electrolyte battery, from the viewpoint of preventing corrosion of electrodes, etc. It is necessary to reduce the free acid concentration of the liquid to about 200 ppm by mass or less in terms of hydrofluoric acid.
- the above-mentioned thionyl halide is not particularly limited and may be a commercially available one, but since it is used as a purification agent, one having a purity of 95% by mass or more is preferable.
- the non-aqueous solvent may be any solvent that does not react with thionyl halide, and carbonates such as dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, propylene carbonate, ethylene carbonate, diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane.
- carbonates such as dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, propylene carbonate, ethylene carbonate, diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane.
- ethers such as ethers, aliphatic hydrocarbons such as n-hexane, cyclohexane and n-heptane, aromatic hydrocarbons such as benzene, toluene and xylene, halogenation such as methylene chloride, chloroform and 1,2-dichloroethane Hydrocarbons, nitriles such as acetonitrile, propionitrile, or mixtures of these materials can be used.
- aliphatic hydrocarbons such as n-hexane, cyclohexane and n-heptane
- aromatic hydrocarbons such as benzene, toluene and xylene
- halogenation such as methylene chloride, chloroform and 1,2-dichloroethane Hydrocarbons
- nitriles such as acetonitrile, propionitrile, or mixtures of these materials
- the temperature conditions for the reaction decomposition with thionyl halide are not particularly limited, but may be in the range of 10 ° C. to 150 ° C., preferably 20 ° C. to 120 ° C., and particularly preferably 30 ° C. to 100 ° C. is more preferable. If the temperature is lower than 10 ° C, the reaction decomposition rate tends to be slow. If the temperature exceeds 150 ° C, the thionyl halide is not introduced and is easily volatilized out of the system. As a result, oxalic acid is targeted. There is a risk that it will not be possible to remove by mass decomposition. Moreover, if it exceeds 150 degreeC, there exists a possibility that decomposition
- the method for adding thionyl halide is not particularly limited, and may be carried out under arbitrary conditions according to the situation.
- gas at room temperature such as thionyl fluoride
- a method of directly introducing from a cylinder, thionyl chloride In the case of a liquid at room temperature, such as a method of pumping using an inert gas, a method of introducing using a metering pump, and the like.
- the amount of thionyl halide added is not particularly limited, and may be added according to the target decomposition amount of oxalic acid. Since oxalic acid and thionyl halide react quantitatively at 1: 1 (molar ratio), if you want to remove oxalic acid from the system substantially, equimolar amount of thionyl halide to oxalic acid What is necessary is just to add. However, it is not preferable to add a large excess of thionyl halide because a non-volatile halogen compound may be generated by side reaction or it may be disadvantageous in terms of cost.
- the amount of thionyl halide in the range of 10 mol or less of thionyl halide to 1 mol of oxalic acid is 200 mass ppm in terms of hydrofluoric acid from the viewpoint of preventing corrosion of electrodes and the like. Or less, more preferably about 100 ppm by mass or less in terms of hydrofluoric acid, and the halogen concentration present in the electrolyte solution is required to have a quality of several tens of ppm by mass or less.
- the concentration may exceed the allowable value, it is preferable to control the amount of thionyl halide added so that the concentration falls within the range of both allowable values.
- the amount of thionyl halide added is small, it is difficult to sufficiently decompose oxalic acid, so it is preferable to add 0.1 mol or more of thionyl halide to 1 mol of oxalic acid.
- the addition time of thionyl halide is not particularly limited and may be any time, but the reaction decomposition product is carbon monoxide, carbon dioxide, hydrogen halide, sulfur dioxide, etc., and gas at normal temperature and pressure. Therefore, when a large amount of oxalic acid is present, it is desirable to add a small amount at a time.
- the reaction decomposition time is not particularly limited, and may be in the range of 0.1 to 48 hours. If the reaction decomposition temperature is 30 ° C. to 100 ° C., the reaction decomposition tends to be completed in several hours. is there.
- reaction decomposition Since thionyl halide is hydrolyzed by moisture, it is preferable to carry out reaction decomposition in an atmosphere not containing moisture.
- the reaction decomposition is preferably performed in an inert gas atmosphere such as nitrogen.
- Substances produced by reactive decomposition carbon monoxide, carbon dioxide, hydrogen halide, sulfur dioxide, etc.
- remaining thionyl halide must be depressurized in the reactor, or an inert gas should be circulated to the reactor. Can be degassed and removed.
- the temperature of the solution at the time of deaeration and removal is not particularly limited, and can be any temperature. However, in order to efficiently deaerate and remove the reaction decomposition products and the remaining thionyl halide, the temperature is 0 ° C. to 150 ° C. What is necessary is just to carry out in the range of ° C.
- the temperature is lower than 0 ° C., the viscosity of the solution increases, and the removal rate of the reaction decomposition product and the remaining thionyl halide becomes slow. If the temperature exceeds 150 ° C., the target complex or solvent may be decomposed.
- oxalic acid that is an impurity can be removed from the system by reactive decomposition with thionyl halide and deaeration and removal. If the method (for example, crystallization purification) is performed, the purity of the target product can be further improved.
- Example 1 In a 1 L glass three-necked flask, 450 g of ethyl methyl carbonate, 70.0 g (0.746 mol) of lithium tetrafluoroborate, and 70.2 g (0.780 mol) of oxalic acid were charged and stirred as solvents. Next, 62.1 g (0.365 mol) of silicon tetrachloride was introduced over 1 hour. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 55 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the obtained ethyl methyl carbonate purification solution of lithium difluoro (oxalato) borate has a low free acid concentration, and can be prepared and used as it is in an electrolyte solution of any concentration, and there is no loss such as crystallization purification. Absent.
- Example 2 A 3 L glass three-necked flask was charged with 1700 g of dimethyl carbonate (DMC), 260 g (2.77 mol) of lithium tetrafluoroborate, and 254 g (2.82 mol) of oxalic acid as a solvent and stirred. Next, 235 g (1.38 mol) of silicon tetrachloride was introduced over 2 hours. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 200 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- DMC dimethyl carbonate
- 260 g (2.77 mol) of lithium tetrafluoroborate lithium tetrafluoroborate
- 254 g (2.82 mol) of oxalic acid 254 g (2.82 mol)
- oxalic acid 254 g (2.82 mol
- oxalic acid 254 g (2
- Example 3 A 300 mL glass three-necked flask was charged with 80 g of ethyl methyl carbonate, 20.0 g (0.132 mol) of lithium hexafluorophosphate, and 12.1 g (0.134 mol) of oxalic acid as a solvent and stirred. Next, 10.9 g (0.064 mol) of silicon tetrachloride was introduced over 1 hour. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 15 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the resulting ethyl methyl carbonate purification solution of lithium tetrafluoro (oxalato) phosphate has a low free acid concentration and can be prepared and used as it is in an electrolyte solution of any concentration, and there is no loss like crystallization purification. Not at all.
- Example 4 A 3 L glass three-necked flask was charged with 1200 g of acetonitrile, 93.0 g (0.551 mol) of sodium hexafluorophosphate, and 50.5 g (0.561 mol) of oxalic acid as a solvent and stirred. Next, 46.6 g (0.276 mol) of silicon tetrachloride was introduced over 1 hour. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 230 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the resulting acetonitrile purified solution of sodium tetrafluoro (oxalato) phosphate has a low free acid concentration and can be prepared and used as it is in an electrolyte solution of any concentration, and there is no loss like crystallization purification. .
- Example 5 A 300 mL glass three-necked flask was charged with 130 g of acetonitrile, 9.20 g (50.0 mmol) of potassium hexafluorophosphate, and 4.60 g (51.1 mol) of oxalic acid, and stirred. Next, 4.25 g (25.0 mmol) of silicon tetrachloride was introduced over 1 hour. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 20 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the resulting acetonitrile purified solution of potassium tetrafluoro (oxalato) phosphate has a low free acid concentration and can be prepared and used as an electrolyte solution of any concentration as it is, and there is no loss like crystallization purification. .
- Example 6 A 3 L glass three-necked flask was charged with 1500 g of ⁇ -butyrolactone, 45.0 g (0.480 mol) of lithium tetrafluoroborate, and 95.0 g (1.06 mol) of oxalic acid as a solvent and stirred. Next, 90.3 g (0.53 mol) of silicon tetrachloride was introduced over 2 hours. After completion of the introduction, stirring was continued for 3 hours, and then the reactor was depressurized, 200 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed. NMR measurement of this reaction solution confirmed that lithium bis (oxalato) borate was produced at a reaction conversion rate of 98%.
- ⁇ -butyrolactone and 10.1 g (52.1 mmol) of the solid lithium bis (oxalato) borate obtained above were added to a 300 mL three-necked flask and stirred to obtain a solution.
- the amount of oxalic acid present in the solution was 30 mg (0.33 mmol) (the amount corresponds to 1320 ppm by mass in terms of hydrofluoric acid).
- a nonaqueous solvent solution of a metal complex having oxalic acid as a ligand and having impurities (oxalic acid) in the solution in advance was prepared.
- Example 7 A 300 mL glass three-necked flask was charged with 80 g of ethyl methyl carbonate, 20.0 g (0.132 mol) of lithium hexafluorophosphate, and 24.3 g (0.270 mol) of oxalic acid as a solvent and stirred. Next, 22.4 g (0.132 mol) of silicon tetrachloride was introduced over 2 hours. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 15 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the obtained ethyl methyl carbonate purified solution of lithium difluorobis (oxalato) phosphate has a low free acid concentration, and can be prepared and used as an electrolyte solution of any concentration as it is, and there is a loss like crystallization purification. Not at all.
- Example 8 A 300 mL glass three-necked flask was charged with 110 g of diethyl carbonate, 20.0 g (0.132 mol) of lithium hexafluorophosphate, and 24.3 g (0.270 mol) of oxalic acid, and stirred. Next, 22.4 g (0.132 mol) of silicon tetrachloride was introduced over 2 hours. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 15 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
- the obtained diethyl carbonate purification solution of lithium difluorobis (oxalato) phosphate has a low free acid concentration, and can be prepared and used in an electrolyte solution of any concentration as it is, and there is no loss such as crystallization purification. Absent.
- Example 9 A 1 L glass three-necked flask was charged with 550 g of diethyl ether, 70.0 g (0.746 mol) of lithium tetrafluoroborate, and 67.1 g (0.746 mol) of oxalic acid as a solvent and stirred. Next, 63.4 g (0.373 mol) of silicon tetrachloride was introduced over 1 hour. After completion of the introduction, stirring was continued for 1 hour, and then the reactor was depressurized, 50 g of the solvent was distilled off, and dissolved hydrogen chloride and silicon tetrafluoride were removed.
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Abstract
Description
不純物として前記溶液中に存在するシュウ酸を、非水溶媒下、ハロゲン化チオニルと反応分解させ、反応分解生成物および未反応のハロゲン化チオニルを脱気除去することを特徴とする、シュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法に関する。
SOX2+(COOH)2 → 2HX+SO2+CO+CO2
(式中で、Xはハロゲン原子を意味する)
1Lガラス三口フラスコに、溶媒としてエチルメチルカーボネートを450g、テトラフルオロホウ酸リチウムを70.0g(0.746mol)、シュウ酸を70.2g(0.780mol)仕込み、攪拌した。次に四塩化ケイ素62.1g(0.365mol)を1時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を55g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でジフルオロ(オキサラト)ホウ酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、3.3g(37mmol)(該量は、フッ酸換算で2900質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
3Lガラス三口フラスコに、溶媒としてジメチルカーボネート(DMC)を1700g、テトラフルオロホウ酸リチウムを260g(2.77mol)、シュウ酸を254g(2.82mol)仕込み、攪拌した。次に四塩化ケイ素235g(1.38mol)を2時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を200g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でジフルオロ(オキサラト)ホウ酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、13.6g(151mmol)(該量は、フッ酸換算で3180質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
300mLガラス三口フラスコに、溶媒としてエチルメチルカーボネートを80g、ヘキサフルオロリン酸リチウムを20.0g(0.132mol)、シュウ酸を12.1g(0.134mol)仕込み、攪拌した。次に四塩化ケイ素10.9g(0.064mol)を1時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を15g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でテトラフルオロ(オキサラト)リン酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、0.41g(4.6mmol)(該量は、フッ酸換算で2190質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
3Lガラス三口フラスコに、溶媒としてアセトニトリルを1200g、ヘキサフルオロリン酸ナトリウムを93.0g(0.551mol)、シュウ酸を50.5g(0.561mol)仕込み、攪拌した。次に四塩化ケイ素46.6g(0.276mol)を1時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を230g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でテトラフルオロ(オキサラト)リン酸ナトリウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、1.9g(21mmol)(該量は、フッ酸換算で770質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
300mLガラス三口フラスコに、溶媒としてアセトニトリルを130g、ヘキサフルオロリン酸カリウムを9.20g(50.0mmol)、シュウ酸を4.60g(51.1mol)仕込み、攪拌した。次に四塩化ケイ素4.25g(25.0mmol)を1時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を20g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でテトラフルオロ(オキサラト)リン酸カリウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、0.14g(1.5mmol)(該量は、フッ酸換算で500質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
3Lガラス三口フラスコに、溶媒としてγ―ブチロラクトンを1500g、テトラフルオロホウ酸リチウムを45.0g(0.480mol)、シュウ酸を95.0g(1.06mol)仕込み、攪拌した。次に四塩化ケイ素90.3g(0.53mol)を2時間かけて導入した。導入終了後、3時間攪拌を継続したのち、反応器を減圧にし、溶媒を200g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でビス(オキサラト)ホウ酸リチウムが生成していることを確認した。得られた反応溶液から溶媒を全て減圧留去し、白色固体を得た。これをジメチルカーボネート500gで洗浄して固体を濾別し、その固体を減圧乾燥して、純度99%の固体のビス(オキサラト)ホウ酸リチウムを88.4g(0.456mol)得た。滴定により該固体中に存在するシュウ酸量を測定したところ、0.26g(2.9mmol)(該量は、フッ酸換算で1320質量ppmに相当する)であった。次いで、300mL三口フラスコに、γ―ブチロラクトンを150g、上記で得られた固体のビス(オキサラト)ホウ酸リチウムを 10.1g(52.1mmol)を加え攪拌して溶液とした。なお、該溶液中に存在するシュウ酸量は30mg(0.33mmol)(該量は、フッ酸換算で1320質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
300mLガラス三口フラスコに、溶媒としてエチルメチルカーボネートを80g、ヘキサフルオロリン酸リチウムを20.0g(0.132mol)、シュウ酸を24.3g(0.270mol)仕込み、攪拌した。次に四塩化ケイ素22.4g(0.132mol)を2時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を15g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率96%でジフルオロビス(オキサラト)リン酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、0.90g(10mmol)(該量は、フッ酸換算で4000質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
300mLガラス三口フラスコに、溶媒としてジエチルカーボネートを110g、ヘキサフルオロリン酸リチウムを20.0g(0.132mol)、シュウ酸を24.3g(0.270mol)仕込み、攪拌した。次に四塩化ケイ素22.4g(0.132mol)を2時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を15g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率94%でジフルオロビス(オキサラト)リン酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、1.24g(13.8mmol)(該量はフッ酸換算で4300質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
1Lガラス三口フラスコに、溶媒としてジエチルエーテルを550g、テトラフルオロホウ酸リチウムを70.0g(0.746mol)、シュウ酸を67.1g(0.746mol)仕込み、攪拌した。次に四塩化ケイ素63.4g(0.373mol)を1時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を50g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率99%でジフルオロ(オキサラト)ホウ酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、0.37g(4.1mmol)(該量は、フッ酸換算で270質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
3Lガラス三口フラスコに、溶媒としてジメチルカーボネート(DMC)を1700g、テトラフルオロホウ酸リチウムを260g(2.77mol)、シュウ酸を254g(2.82mol)仕込み、攪拌した。次に四塩化ケイ素235g(1.38mol)を2時間かけて導入した。導入終了後、1時間攪拌を継続したのち、反応器を減圧にし、溶媒を210g留去し、溶存する塩化水素、四フッ化ケイ素を除去した。この反応溶液のNMR測定により、反応変換率98%でジフルオロ(オキサラト)ホウ酸リチウムが生成していることを確認した。滴定により反応溶液に存在するシュウ酸量を測定したところ、9.3g(103mmol)(該量は、フッ酸換算で2170質量ppmに相当する)であった。上記のようにして、予め溶液中に不純物(シュウ酸)が存在する、シュウ酸を配位子とする金属錯体の非水溶媒溶液を準備した。
実施例6で得られた、塩化チオニル処理前の固体のビス(オキサラト)ホウ酸リチウム(表1中で「予め準備した不純物(シュウ酸)を含む固体」と表記する)10.1g(52.1mmol)を、テトラヒドロフランとジエチルエーテルの1:1混合液で晶析精製し、得られた固体を減圧乾燥して、純度99%の固体のビス(オキサラト)ホウ酸リチウムを6.9g(35.6mmol)得た。滴定により該固体中に存在するシュウ酸(=遊離酸)量を測定したところ、3.7mg(0.041mmol)(該量は、フッ酸換算で240質量ppmに相当する)であった。このように晶析精製だけでは、遊離酸濃度を充分に低下させることが困難である。また濾液へのロスがあるため、収率が低下する。
Claims (12)
- シュウ酸を不純物として含有する、シュウ酸を配位子とする金属錯体の非水溶媒溶液から、該不純物を分解除去して、シュウ酸を配位子とする金属錯体の非水溶媒精製溶液を製造する方法であって、
不純物として前記溶液中に存在するシュウ酸を、非水溶媒下、ハロゲン化チオニルと反応分解させ、反応分解生成物および未反応のハロゲン化チオニルを脱気除去することを特徴とする、シュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。 - 前記ハロゲン化チオニルが、塩化チオニルおよび臭化チオニルからなる群から選ばれる少なくとも1つであることを特徴とする、請求項1に記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- 前記シュウ酸を配位子とする金属錯体が、ジフルオロ(オキサラト)ホウ酸塩、ビス(オキサラト)ホウ酸塩、ジフルオロビス(オキサラト)リン酸塩、テトラフルオロ(オキサラト)リン酸塩、トリス(オキサラト)リン酸塩および、その混合物からなる群から選ばれる少なくとも1つであることを特徴とする、請求項1または請求項2に記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- 前記シュウ酸を配位子とする金属錯体の対カチオンが、リチウムイオン、ナトリウムイオン、カリウムイオン、テトラアルキルアンモニウムイオンからなる群から選ばれた少なくとも一つの対カチオンであることを特徴とする、請求項1乃至請求項3のいずれかに記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- 前記のハロゲン化チオニルとの反応分解の際の温度が10℃~100℃の範囲であることを特徴とする、請求項1乃至請求項4のいずれかに記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- 前記の反応分解生成物および未反応のハロゲン化チオニルを脱気除去する際の温度が0℃~150℃の範囲であることを特徴とする、請求項1乃至請求項5のいずれかに記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- シュウ酸とハロゲン化チオニルを1:0.1~1:10のモル比の範囲で反応させることを特徴とする、請求項1乃至請求項6のいずれかに記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- シュウ酸とハロゲン化チオニルを1:1~1:10のモル比の範囲で反応させることを特徴とする、請求項1乃至請求項7のいずれかに記載のシュウ酸を配位子とする金属錯体の非水溶媒精製溶液の製造方法。
- 請求項1乃至請求項8のいずれかに記載の製造方法において、脱気除去の後に、さらに晶析精製を行うことを特徴とする、シュウ酸を配位子とする金属錯体精製物の製造方法。
- 請求項1乃至請求項8のいずれかに記載の製造方法を用いて得られた、シュウ酸を配位子とする金属錯体の非水溶媒精製溶液。
- 請求項9に記載の製造方法を用いて得られた、シュウ酸を配位子とする金属錯体精製物。
- 少なくとも正極と、リチウムまたはリチウムの吸蔵放出の可能な負極材料からなる負極と、非水溶媒と溶質とからなる非水電解液電池用電解液とを備えた非水電解液電池において、請求項1乃至請求項9のいずれかに記載の製造方法を用いて得られた、シュウ酸を配位子とする金属錯体精製物、及び/または、シュウ酸を配位子とする金属錯体の非水溶媒精製溶液を含むことを特徴とする、非水電解液電池。
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KR101958880B1 (ko) * | 2015-01-23 | 2019-03-15 | 샌트랄 글래스 컴퍼니 리미티드 | 비수전해액 전지용 전해액 및 비수전해액 전지 |
JP2016136498A (ja) * | 2015-01-23 | 2016-07-28 | セントラル硝子株式会社 | 非水系電解液及びそれを用いた非水系電解液電池 |
JP2016139605A (ja) * | 2015-01-23 | 2016-08-04 | セントラル硝子株式会社 | 非水電解液電池用電解液及び非水電解液電池 |
KR101958865B1 (ko) * | 2015-01-23 | 2019-03-15 | 샌트랄 글래스 컴퍼니 리미티드 | 비수계 전해액 및 그것을 이용한 비수계 전해액 전지 |
US10454139B2 (en) | 2015-01-23 | 2019-10-22 | Central Glass Co., Ltd. | Electrolytic solution for nonaqueous electrolytic solution secondary batteries and nonaqueous electrolytic solution secondary battery |
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KR20180038038A (ko) * | 2015-08-12 | 2018-04-13 | 샌트랄 글래스 컴퍼니 리미티드 | 비수계 전해액 및 그것을 이용한 비수계 전해액 전지 |
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WO2017026181A1 (ja) * | 2015-08-12 | 2017-02-16 | セントラル硝子株式会社 | 非水系電解液及びそれを用いた非水系電解液電池 |
US11114693B2 (en) | 2015-08-12 | 2021-09-07 | Central Glass Company, Ltd. | Electrolytic solution for nonaqueous electrolytic solution secondary batteries and nonaqueous electrolytic solution secondary battery |
US20230050288A1 (en) * | 2019-12-09 | 2023-02-16 | Panasonic Intellectual Property Management Co., Ltd. | Liquid component for electrolytic capacitor and electrolytic capacitor |
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Also Published As
Publication number | Publication date |
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JP6064724B2 (ja) | 2017-01-25 |
JP2014005269A (ja) | 2014-01-16 |
EP2857406B1 (en) | 2017-08-23 |
US20150147643A1 (en) | 2015-05-28 |
EP2857406A4 (en) | 2015-12-16 |
EP2857406A1 (en) | 2015-04-08 |
KR20150020627A (ko) | 2015-02-26 |
CN104334564A (zh) | 2015-02-04 |
TWI472531B (zh) | 2015-02-11 |
TW201406769A (zh) | 2014-02-16 |
CN104334564B (zh) | 2016-06-08 |
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