CN115974106B - Sodium hexafluorophosphate and recrystallization method thereof - Google Patents
Sodium hexafluorophosphate and recrystallization method thereof Download PDFInfo
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- CN115974106B CN115974106B CN202211618825.0A CN202211618825A CN115974106B CN 115974106 B CN115974106 B CN 115974106B CN 202211618825 A CN202211618825 A CN 202211618825A CN 115974106 B CN115974106 B CN 115974106B
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- solvent
- sodium hexafluorophosphate
- sodium
- powder
- saturated solution
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- -1 Sodium hexafluorophosphate Chemical compound 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001953 recrystallisation Methods 0.000 title claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 76
- 239000000843 powder Substances 0.000 claims abstract description 35
- 239000012047 saturated solution Substances 0.000 claims abstract description 30
- 239000002244 precipitate Substances 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 9
- 230000007935 neutral effect Effects 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 57
- 239000000243 solution Substances 0.000 claims description 24
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 20
- 239000012265 solid product Substances 0.000 claims description 16
- 230000032683 aging Effects 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical group COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012452 mother liquor Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims 1
- 239000012670 alkaline solution Substances 0.000 abstract description 7
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- YWOITFUKFOYODT-UHFFFAOYSA-N methanol;sodium Chemical compound [Na].OC YWOITFUKFOYODT-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
Abstract
Description
Claims (6)
Priority Applications (1)
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CN202211618825.0A CN115974106B (en) | 2022-12-15 | 2022-12-15 | Sodium hexafluorophosphate and recrystallization method thereof |
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CN202211618825.0A CN115974106B (en) | 2022-12-15 | 2022-12-15 | Sodium hexafluorophosphate and recrystallization method thereof |
Publications (2)
Publication Number | Publication Date |
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CN115974106A CN115974106A (en) | 2023-04-18 |
CN115974106B true CN115974106B (en) | 2024-03-22 |
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CN202211618825.0A Active CN115974106B (en) | 2022-12-15 | 2022-12-15 | Sodium hexafluorophosphate and recrystallization method thereof |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090076677A (en) * | 2008-01-09 | 2009-07-13 | 주식회사 엘지화학 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same |
CN102496713A (en) * | 2011-12-19 | 2012-06-13 | 中国海洋石油总公司 | Method for reducing free acid content in lithium hexafluorophosphate |
CN103539168A (en) * | 2013-11-13 | 2014-01-29 | 黄铭 | Lithium hexafluorophosphate purifying method |
WO2016093399A1 (en) * | 2014-12-11 | 2016-06-16 | Chun Bo Ltd | Lithium sulfonyl imide salt containing fluorine and purification method for the same |
CN107758701A (en) * | 2017-09-29 | 2018-03-06 | 江西省东沿药业有限公司 | A kind of preparation method of Potassium Hexafluorophosphate |
CN108217622A (en) * | 2017-12-21 | 2018-06-29 | 珠海市赛纬电子材料股份有限公司 | A kind of preparation method of sodium hexafluoro phosphate |
CN108569710A (en) * | 2017-12-26 | 2018-09-25 | 衢州北斗星化学新材料有限公司 | A kind of purification process preparing high purity lithium hexafluorophosphate |
KR20200114966A (en) * | 2019-03-28 | 2020-10-07 | 주식회사 천보 | Method for producing bis (fluorosulfonyl) imide lithium salt (LiFSI) with reduced fluorine anion content |
CN112158816A (en) * | 2020-09-24 | 2021-01-01 | 湖南博信新能源科技有限公司 | Method for simultaneously preparing high-purity difluorophosphoric acid and high-purity lithium difluorophosphate |
CN115353087A (en) * | 2022-08-22 | 2022-11-18 | 衢州市九洲化工有限公司 | Production method of lithium difluorophosphate (LiDFP) |
-
2022
- 2022-12-15 CN CN202211618825.0A patent/CN115974106B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090076677A (en) * | 2008-01-09 | 2009-07-13 | 주식회사 엘지화학 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same |
CN102496713A (en) * | 2011-12-19 | 2012-06-13 | 中国海洋石油总公司 | Method for reducing free acid content in lithium hexafluorophosphate |
CN103539168A (en) * | 2013-11-13 | 2014-01-29 | 黄铭 | Lithium hexafluorophosphate purifying method |
WO2016093399A1 (en) * | 2014-12-11 | 2016-06-16 | Chun Bo Ltd | Lithium sulfonyl imide salt containing fluorine and purification method for the same |
CN107758701A (en) * | 2017-09-29 | 2018-03-06 | 江西省东沿药业有限公司 | A kind of preparation method of Potassium Hexafluorophosphate |
CN108217622A (en) * | 2017-12-21 | 2018-06-29 | 珠海市赛纬电子材料股份有限公司 | A kind of preparation method of sodium hexafluoro phosphate |
CN108569710A (en) * | 2017-12-26 | 2018-09-25 | 衢州北斗星化学新材料有限公司 | A kind of purification process preparing high purity lithium hexafluorophosphate |
KR20200114966A (en) * | 2019-03-28 | 2020-10-07 | 주식회사 천보 | Method for producing bis (fluorosulfonyl) imide lithium salt (LiFSI) with reduced fluorine anion content |
CN112158816A (en) * | 2020-09-24 | 2021-01-01 | 湖南博信新能源科技有限公司 | Method for simultaneously preparing high-purity difluorophosphoric acid and high-purity lithium difluorophosphate |
CN115353087A (en) * | 2022-08-22 | 2022-11-18 | 衢州市九洲化工有限公司 | Production method of lithium difluorophosphate (LiDFP) |
Non-Patent Citations (1)
Title |
---|
用有机溶剂提纯六氟磷酸锂粗品;陈俊彩;张志业;王辛龙;杨林;傅玉信;;化学研究与应用(12);全文 * |
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CN115974106A (en) | 2023-04-18 |
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Inventor after: Xiao Wenqian Inventor after: Xie Guangming Inventor after: Yang Ruifu Inventor after: Wen Sicheng Inventor after: Zhan Xiuling Inventor after: Teng Liyun Inventor after: Fu Yanqiong Inventor after: Liu Bin Inventor before: Xiao Wenqian Inventor before: Zhan Xiuling Inventor before: Fu Yanqiong Inventor before: Liu Bin |
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