METHOD FOR RECOVERING LITHIUM BIS(FLUOROSULFONYL)IMIDE

    公开(公告)号:US20240092639A1

    公开(公告)日:2024-03-21

    申请号:US18525902

    申请日:2023-12-01

    IPC分类号: C01B21/086

    CPC分类号: C01B21/086 H01M10/0525

    摘要: A method for recovering lithium bis(fluorosulfonyl)imide is provided in the present application. The method of the present application may comprise: mixing a slag from lithium bis(fluorosulfonyl)imide production process with a solvent of carbonate ester, to obtain a mixed material; subjecting the mixed material to solid-liquid separation, to obtain a discharged liquid and a solid slag; monitoring the chromaticity of the discharged liquid and comparing the chromaticity of the discharged liquid with a chromaticity reference; recycling the discharged liquid to the mixed material, if the chromaticity of the discharged liquid is higher than the chromaticity reference; and recycling the discharged liquid to lithium bis(fluorosulfonyl)imide production process, if the chromaticity of the discharged liquid is lower than or equal to the chromaticity reference.

    Method for preparing imide salts containing a fluorosulphonyl group

    公开(公告)号:US09725318B2

    公开(公告)日:2017-08-08

    申请号:US14370696

    申请日:2013-11-19

    申请人: ARKEMA FRANCE

    摘要: A fluorination process for obtaining fluorinated compounds including at least one fluorosulfonyl group. More particularly, a process for preparing a fluorinated compound of formula (II), including at least one step of reacting a compound of formula (I) with anhydrous hydrofluoric acid in at least one organic solvent, in which R1 is equal to R2 except in the specific case where R1═Cl, then R2═F, and when R1 is equal to R2, R1 and R2 represent an electron-withdrawing group which has a Hammett parameter σp of greater than 0, such as F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C3HF6, C4F9, C4H2F7, C4H4F5, C5F11, C3F5OCF3, C2F4OCF3, C2H2F2OCF3, CF2OCF3, C6F13, C7F15, C8F17 or C9F19, and M represents a hydrogen atom, an alkali metal, an alkaline-earth metal or a quaternary ammonium cation.

    METHOD FOR PRODUCING A FLUORINE- AND SULPHUR-BEARING COMPOUND AND SALTS THEREOF IN AN AQUEOUS MEDIUM
    27.
    发明申请
    METHOD FOR PRODUCING A FLUORINE- AND SULPHUR-BEARING COMPOUND AND SALTS THEREOF IN AN AQUEOUS MEDIUM 审中-公开
    生产氟和硫轴承化合物的方法及其在水性介质中的盐

    公开(公告)号:US20160304347A1

    公开(公告)日:2016-10-20

    申请号:US15101138

    申请日:2014-12-03

    申请人: RHODIA OPERATIONS

    摘要: The invention relates to a method for producing a fluorine- and sulphur-bearing compound of formula F—SO—R (I) or F—SO2—R (II), comprising the reaction, in the presence of water, of at least one salt providing a fluoride anion and at least one halgoenosulfoxide compound of formula X—SO—R′ (I0) from a halogenosulfonyl compound of formula X—SO2—R′ (II0), in which X is a halogen atom other than fluorine and R and R′ are each a group linked by a covalent bond to the sulphur atom, said bond linking the sulphur atom with a nitrogen atom. The invention also relates to a method for producing salts of a fluorine- and sulphur-bearing compound of formula F—SO—R (I) or F—SO2—R (II) which are advantageously used as electrolyte salts, as precursors of antistatic agents or as surfactant precursors.

    摘要翻译: 本发明涉及式F-SO-R(I)或F-SO 2 -R(II)的含氟和含硫化合物的制备方法,包括在水存在下至少一种 从式X-SO 2 -R'(II0)的卤代磺酰基化合物中提供氟化物阴离子和至少一种式X-SO-R'(I0)的卤代烷基亚砜化合物,其中X是除氟以外的卤素原子,R 和R'各自是通过与硫原子共价键连接的基团,所述键将硫原子与氮原子连接。 本发明还涉及有利地用作电解质盐的式F-SO-R(I)或F-SO 2 -R(II)的含氟和含硫化合物的盐作为抗静电前体的方法 试剂或表面活性剂前体。

    Method for producing lithium or sodium bis(fluorosulfonyl)imide
    28.
    发明授权
    Method for producing lithium or sodium bis(fluorosulfonyl)imide 有权
    二(氟磺酰基)酰亚胺锂或钠的方法

    公开(公告)号:US09440852B2

    公开(公告)日:2016-09-13

    申请号:US14115909

    申请日:2012-04-06

    申请人: Grégory Schmidt

    发明人: Grégory Schmidt

    摘要: The invention relates to a process for the preparation of a bis(sulphonato)imide salt of formula: (III) (SO3−)—N−—(SO3)3C+  (III) where C+ represents a monovalent cation, comprising the reaction of amidosulphuric acid of formula: (OH)—SO2—NH2  (I) with a halosulphonic acid of formula: (OH)—SO2—X  (II) where X represents a halogen atom, and comprising a reaction with a base which is a salt formed with the cation C+. The invention also relates to a process for the preparation of bis(fluorosulphonyl)imide acid of formula: F—(SO2)—NH—(SO2)—F  (V) and to a process for the preparation of lithium bis(fluorosulphonyl)imide salt of formula: F—(SO2)—N−—(SO2)—F Li+.  (VII)

    摘要翻译: 本发明涉及一种制备式(III)(SO 3 - ) - N - (SO 3)3 C +(III)的双(磺酸根)酰亚胺盐的方法,其中C +表示一价阳离子,其包括酰胺硫 式(OH)-SO 2 -NH 2(I)的酸与式(OH)-SO 2 -X(II)的卤代磺酸反应,其中X表示卤素原子,并且与形成的盐的碱反应 与阳离子C +。 本发明还涉及一种制备式(F)(SO 2)-NH-(SO 2)-F(V)的双(氟磺酰基)酰亚胺酸的方法和制备双(氟磺酰基)酰亚胺锂的方法 式:F-(SO 2)-N - (SO 2)-F Li +的盐。 (七)

    Alkali metal salt of fluorosulfonyl imide, and production method therefor
    29.
    发明授权
    Alkali metal salt of fluorosulfonyl imide, and production method therefor 有权
    氟磺酰亚胺的碱金属盐及其制备方法

    公开(公告)号:US09079780B2

    公开(公告)日:2015-07-14

    申请号:US13700364

    申请日:2011-05-27

    摘要: The present invention provides an alkali metal salt of fluorosulfonyl imide having favorable heat resistance and a reduced content of specific impurities and a water content, and provides a method for producing an alkali metal salt of fluorosulfonyl imide, which is capable of easily removing a solvent from a reaction solution. An alkali metal salt of fluorosulfonyl imide of the present invention is represented by the following general formula (I) and has a mass loss rate of 2% or less when the alkali metal salt of fluorosulfonyl imide is kept at 100° C. for 8 hours under an air current. A method for producing an alkali metal salt of fluorosulfonyl imide of the present invention comprises a step of concentrating a solution of the alkali metal salt of fluorosulfonyl imide by bubbling a gas into a reaction solution containing the alkali metal salt of fluorosulfonyl imide, and/or concentrating a solution of the alkali metal salt of fluorosulfonyl imide by thin layer distillation.

    摘要翻译: 本发明提供了具有良好的耐热性,降低的特定杂质含量和含水量的氟磺酰亚胺的碱金属盐,提供了能够容易地除去溶剂的氟磺酰亚胺的碱金属盐的方法 反应溶液。 本发明的氟代磺酰亚胺的碱金属盐由以下通式(I)表示,当氟磺酰亚胺的碱金属盐在100℃保持8小时时质量损失率为2%以下 在气流下。 制备本发明的氟磺酰亚胺碱金属盐的方法包括通过将气体鼓入含氟氟磺酰亚胺的碱金属盐的反应溶液中浓缩氟磺酰亚胺的碱金属盐的溶液和/或 通过薄层蒸馏浓缩氟磺酰亚胺的碱金属盐的溶液。