RU2006107861A - METHOD FOR PRODUCING HIGH PURE LITHIUM FLUORIDE - Google Patents
METHOD FOR PRODUCING HIGH PURE LITHIUM FLUORIDE Download PDFInfo
- Publication number
- RU2006107861A RU2006107861A RU2006107861/15A RU2006107861A RU2006107861A RU 2006107861 A RU2006107861 A RU 2006107861A RU 2006107861/15 A RU2006107861/15 A RU 2006107861/15A RU 2006107861 A RU2006107861 A RU 2006107861A RU 2006107861 A RU2006107861 A RU 2006107861A
- Authority
- RU
- Russia
- Prior art keywords
- lithium
- solution
- technical
- fluoride
- carbonate
- Prior art date
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Способ получения высокочистого фторида лития из технических солей лития, включающий перевод технических солей лития в раствор гидрокарбоната лития путем обработки водных растворов технических солей лития углекислым газом, сорбционную очистку их на катионообменной смоле, получение очищенного карбоната лития, промывку его, приготовление водной пульпы очищенного карбоната лития, повторный процесс бикарбонизации водной пульпы карбоната лития углекислым газом и получение из него раствора гидрокарбоната лития, последующее фторирование, промывку и сушку полученного фторида лития, отличающийся тем, что в качестве технических солей лития используют технический карбонат лития или гидроксид лития, фторирование проводят медленным добавлением с постоянным перемешиванием раствора гидрокарбоната лития в реактор, заполненный раствором фтороводорода с 10-30% избытком от стехиометрии, промывку фторида лития проводят дистиллированной водой без COили 1% раствором фтороводорода, а сушку его осуществляют в две стадии в вакуумной печи, при этом температура сушки 1-ой стадии составляет не выше 100°С, а температура сушки 2-ой стадии - не выше 150°С.A method for producing high-purity lithium fluoride from technical lithium salts, including the conversion of technical lithium salts to a solution of lithium hydrogen carbonate by treating aqueous solutions of technical lithium salts with carbon dioxide, sorption cleaning them on a cation exchange resin, obtaining purified lithium carbonate, washing it, preparing an aqueous pulp of purified lithium carbonate the repeated process of bicarbonization of an aqueous pulp of lithium carbonate with carbon dioxide and obtaining a solution of lithium hydrogen carbonate from it, followed by fluorination, washing and drying the obtained lithium fluoride, characterized in that technical lithium carbonates or lithium hydroxide are used as technical lithium salts, fluorination is carried out by slow addition with constant stirring of a solution of lithium hydrogen carbonate in a reactor filled with a solution of hydrogen fluoride with 10-30% excess from stoichiometry, washing lithium fluoride is carried out with distilled water without CO or 1% hydrogen fluoride solution, and it is dried in two stages in a vacuum oven, while the drying temperature of the first stage is ie above 100 ° C, and the drying temperature 2nd step - not higher than 150 ° C.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2006107861/15A RU2330811C2 (en) | 2006-03-13 | 2006-03-13 | Method of obtaining high-purity lithium fluoride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2006107861/15A RU2330811C2 (en) | 2006-03-13 | 2006-03-13 | Method of obtaining high-purity lithium fluoride |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2006107861A true RU2006107861A (en) | 2007-09-20 |
RU2330811C2 RU2330811C2 (en) | 2008-08-10 |
Family
ID=39746550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2006107861/15A RU2330811C2 (en) | 2006-03-13 | 2006-03-13 | Method of obtaining high-purity lithium fluoride |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2330811C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645437A (en) * | 2016-01-08 | 2016-06-08 | 中国科学院上海应用物理研究所 | Lithium fluoride recovery device and recovery method |
CN111994924A (en) * | 2020-09-09 | 2020-11-27 | 江西云锂材料股份有限公司 | Novel method for producing high-purity lithium fluoride by taking industrial-grade lithium carbonate as raw material |
CN117160314A (en) * | 2023-08-01 | 2023-12-05 | 多氟多阳福新材料有限公司 | High-purity lithium fluoride purification system of battery level |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104364198B (en) | 2012-05-25 | 2016-07-06 | 朗盛德国有限责任公司 | The preparation of high-purity lithium fluoride |
CN103553086B (en) * | 2013-11-18 | 2015-07-29 | 上海晶纯生化科技股份有限公司 | A kind of method preparing high purity lithium fluoride |
CN105197966B (en) * | 2015-10-29 | 2017-05-31 | 湖北省宏源药业科技股份有限公司 | A kind of purification process of super-active lithium fluoride |
RU2627427C1 (en) * | 2016-11-18 | 2017-08-08 | Акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method for inactivation of impurity in lithium fluoride sorbent |
-
2006
- 2006-03-13 RU RU2006107861/15A patent/RU2330811C2/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645437A (en) * | 2016-01-08 | 2016-06-08 | 中国科学院上海应用物理研究所 | Lithium fluoride recovery device and recovery method |
CN105645437B (en) * | 2016-01-08 | 2017-04-05 | 中国科学院上海应用物理研究所 | A kind of retracting device and its recovery method of lithium fluoride |
CN111994924A (en) * | 2020-09-09 | 2020-11-27 | 江西云锂材料股份有限公司 | Novel method for producing high-purity lithium fluoride by taking industrial-grade lithium carbonate as raw material |
CN117160314A (en) * | 2023-08-01 | 2023-12-05 | 多氟多阳福新材料有限公司 | High-purity lithium fluoride purification system of battery level |
Also Published As
Publication number | Publication date |
---|---|
RU2330811C2 (en) | 2008-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108927198B (en) | Modified carbon nitride photocatalyst, preparation method thereof and method for synthesizing xylonic acid by photocatalytic oxidation of xylose | |
RU2006107861A (en) | METHOD FOR PRODUCING HIGH PURE LITHIUM FLUORIDE | |
RU2009131715A (en) | METHODS FOR PRODUCING ETHYLENE OXIDE AND ETHYLENE GLYCOL | |
RU2014129465A (en) | ELECTRODE MATERIAL, METHOD FOR MANUFACTURING ELECTRODE MATERIAL AND ACCUMULATOR | |
WO2012047832A3 (en) | Process for the production of alcohols from biomass | |
CN104176968B (en) | The production method of the high dense water reducer of a kind of naphthalene system | |
RU2012121870A (en) | CATION EXCHANGE MEMBRANE, ELECTROLYZER WITH ITS USE AND METHOD FOR PRODUCING A CATION EXCHANGE MEMBRANE | |
CN110698452A (en) | Preparation method of chlorinated ethylene carbonate by using novel initiator | |
RU2013128473A (en) | METHOD FOR PRODUCING ETHYLENE GLYCOL | |
CN109250884A (en) | A kind of biogas slurry high-efficient deamination technique of digested sludge joint pyrohydrolysis | |
CN105386132A (en) | Method for improving performance of ramine fibers in oxidation degumming mode through slow-release type weak base source | |
RU2015143667A (en) | ELECTROCHEMICAL METHOD AND SYSTEM FOR Glucose Production | |
CN104386666B (en) | Method for preparing carbon quantum dots through alcohol decomposition | |
CN103255484A (en) | Refined and degummed cotton stalk bark fiber and preparation method thereof | |
CN109336789A (en) | A kind of preparation method of 3- hydroxy-propanesulfonic acid | |
CN103332751B (en) | Ferrous sulfate method of comprehensive utilization | |
US20230167569A1 (en) | Co3o4 nanosheet loaded stainless steel mesh, preparation method and application thereof | |
CN105566279A (en) | Preparation method of vinyl ethylene carbonate | |
CN104057525A (en) | Bamboo fiber processing method | |
CN108314023A (en) | A method of preparing graphene using special graphite powder | |
CN100542962C (en) | Produce the method for aluminum fluoride | |
CN106861365B (en) | Treatment method of thionyl chloride tail gas | |
RU2006116701A (en) | METHOD FOR PRODUCING HIGH PURE LITHIUM CARBONATE | |
CN101376519A (en) | Method for preparing barium fluoride | |
RU2009141444A (en) | METHOD FOR PRODUCING HYDROCARBON SORBENT FOR WATER DEFORMATION |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20070925 |
|
FZ9A | Application not withdrawn (correction of the notice of withdrawal) |
Effective date: 20071122 |