CN109941981B - 一种制备高纯偏磷酸锂的方法 - Google Patents
一种制备高纯偏磷酸锂的方法 Download PDFInfo
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- CN109941981B CN109941981B CN201910199379.6A CN201910199379A CN109941981B CN 109941981 B CN109941981 B CN 109941981B CN 201910199379 A CN201910199379 A CN 201910199379A CN 109941981 B CN109941981 B CN 109941981B
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- lithium
- lithium metaphosphate
- metaphosphate
- purity
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- MRVHOJHOBHYHQL-UHFFFAOYSA-M lithium metaphosphate Chemical compound [Li+].[O-]P(=O)=O MRVHOJHOBHYHQL-UHFFFAOYSA-M 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000002156 mixing Methods 0.000 claims abstract description 37
- 238000001354 calcination Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 58
- SNKMVYBWZDHJHE-UHFFFAOYSA-M lithium;dihydrogen phosphate Chemical compound [Li+].OP(O)([O-])=O SNKMVYBWZDHJHE-UHFFFAOYSA-M 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 32
- 238000000227 grinding Methods 0.000 claims description 27
- 238000005406 washing Methods 0.000 claims description 24
- 235000019441 ethanol Nutrition 0.000 claims description 18
- 238000003837 high-temperature calcination Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 2
- MVGWWCXDTHXKTR-UHFFFAOYSA-J tetralithium;phosphonato phosphate Chemical compound [Li+].[Li+].[Li+].[Li+].[O-]P([O-])(=O)OP([O-])([O-])=O MVGWWCXDTHXKTR-UHFFFAOYSA-J 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQRPHMAXFVUBJX-UHFFFAOYSA-M lithium;hydrogen carbonate Chemical compound [Li+].OC([O-])=O HQRPHMAXFVUBJX-UHFFFAOYSA-M 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
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CN201910199379.6A CN109941981B (zh) | 2019-03-15 | 2019-03-15 | 一种制备高纯偏磷酸锂的方法 |
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CN201910199379.6A CN109941981B (zh) | 2019-03-15 | 2019-03-15 | 一种制备高纯偏磷酸锂的方法 |
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CN109941981A CN109941981A (zh) | 2019-06-28 |
CN109941981B true CN109941981B (zh) | 2020-10-27 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110931799B (zh) * | 2020-02-05 | 2020-06-26 | 桑顿新能源科技有限公司 | 含偏磷酸盐锂离子电池正极材料的制备方法 |
CN111362244A (zh) * | 2020-04-10 | 2020-07-03 | 上海太洋科技有限公司 | 一种光学级偏磷酸钡的制备方法 |
CN114852984B (zh) * | 2022-05-30 | 2023-04-14 | 上海太洋科技有限公司 | 一种光学级偏磷酸锂的制备方法 |
CN115548325B (zh) * | 2022-11-29 | 2023-03-14 | 瑞浦兰钧能源股份有限公司 | 一种硅负极材料及其制备方法和应用 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003082736A1 (en) * | 2002-03-28 | 2003-10-09 | Council Of Scientific And Industrial Research | Process for the preparation of lithium metaphosphate |
CN100355647C (zh) * | 2004-12-31 | 2007-12-19 | 山西超新金属材料有限公司 | 偏磷酸锂的生产工艺 |
JP5440460B2 (ja) * | 2010-09-10 | 2014-03-12 | 株式会社村田製作所 | 二次電池用電極活物質の製造方法、二次電池用電極活物質、二次電池、および、二次電池用電極活物質の前駆体 |
CN102910610A (zh) * | 2012-11-14 | 2013-02-06 | 云南莱德福科技有限公司 | 高粘度聚偏磷酸钾的制备方法 |
CN102897740B (zh) * | 2012-11-14 | 2015-01-14 | 云南莱德福科技有限公司 | 聚偏磷酸钾的生产方法及生产设备 |
CN103441269B (zh) * | 2013-08-05 | 2016-08-17 | 北大先行科技产业有限公司 | 一种焦磷酸锂/碳包覆磷酸铁锂复合材料及其制备方法 |
KR101616893B1 (ko) * | 2014-06-30 | 2016-05-02 | 재단법인 포항산업과학연구원 | 메타인산리튬의 제조 방법 |
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Address after: 338000 Longteng Road, Xinyu Economic Development Zone, Jiangxi Province Patentee after: Jiangxi Ganfeng Lithium Industry Group Co.,Ltd. Address before: 338000 Longteng Road, Xinyu Economic Development Zone, Jiangxi Province Patentee before: JIANGXI GANFENG LITHIUM Co.,Ltd. |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Method for Preparing High Purity Lithium Metaphosphate Effective date of registration: 20230927 Granted publication date: 20201027 Pledgee: Industrial and Commercial Bank of China Limited Xinyu branch Pledgor: Jiangxi Ganfeng Lithium Industry Group Co.,Ltd. Registration number: Y2023980059425 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201027 Pledgee: Industrial and Commercial Bank of China Limited Xinyu branch Pledgor: Jiangxi Ganfeng Lithium Industry Group Co.,Ltd. Registration number: Y2023980059425 |