Method for purifying difluorophosphate

    公开(公告)号:US10112835B2

    公开(公告)日:2018-10-30

    申请号:US14419181

    申请日:2014-06-06

    Abstract: Provided is a method for purifying a difluorophosphate, in which a difluorophosphate is purified to a high purity. The method includes a method for purifying a difluorophosphate, comprising bringing hydrogen fluoride into contact with a difluorophosphate containing an impurity and subsequently heating and drying the difluorophosphate, or bringing the hydrogen fluoride into contact with the difluorophosphate containing the impurity while heating and drying the difluorophosphate containing the impurity, thereby removing the impurity.

    Method for producing difluorophosphate

    公开(公告)号:US09624107B2

    公开(公告)日:2017-04-18

    申请号:US14418720

    申请日:2014-06-06

    CPC classification number: C01B25/455 H01G11/62 H01M10/052 H01M10/0568

    Abstract: Provided is a method for producing a difluorophosphate, which can easily and industrially advantageously produce a high-purity difluorophosphate. The method includes a step of producing a difluorophosphate in the fluorophosphoric acid solution by reacting hydrofluoric acid anhydride containing no solvent with an oxoacid and/or the like of phosphorous to produce a fluorophosphoric acid solution; a step of adding a hexafluorophosphate to the fluorophosphoric acid solution in the absence of respective halides, carbonates, borates, phosphates, hydroxides, and oxides of an alkali metal and the like; and a step of heating and drying the fluorophosphoric acid solution containing the difluorophosphate to distill away a fluorophosphoric acid, or a step of depositing the difluorophosphate in the fluorophosphoric acid solution by crystallization, subsequently separating the difluorophosphate by solid-liquid separation, and distilling away a fluorophosphoric acid contained in the difluorophosphate after the solid-liquid separation.

    Fine-processing agent and fine-processing method
    85.
    发明授权
    Fine-processing agent and fine-processing method 有权
    精加工剂和精细加工方法

    公开(公告)号:US08974685B2

    公开(公告)日:2015-03-10

    申请号:US13320171

    申请日:2009-05-21

    CPC classification number: H01L21/31111 C09K13/08

    Abstract: Provided is a fine-processing agent which, when fine-processing a laminated film stacked at least with a silicon dioxide film and a silicon nitride film, can selectively fine-process the silicon dioxide film. Also provided is a fine-processing method utilizing the fine-processing agent. The fine-processing agent is characterized by including: (a) 0.01-15.0 weight % hydrogen fluoride and/or 0.1-40.0 weight % ammonium fluoride, (b) water, and (c) 0.001-10.00 weight % water-soluble polymer selected from among a group consisting of acrylic acid, ammonium acrylate, acrylic acid ester, acrylamide, styrenesulfonic acid, ammonium styrenesulfonate, and styrenesulfonic acid ester.

    Abstract translation: 本发明提供一种精细加工剂,其能够对至少层叠有二氧化硅膜和氮化硅膜的叠层膜进行精细加工,能够选择性地精细加工二氧化硅膜。 还提供了利用精细加工剂的精细加工方法。 该精细加工剂的特征在于:(a)0.01-15.0重量%氟化氢和/或0.1-40.0重量%氟化铵,(b)水和(c)0.001-10.00重量%水溶性聚合物 由丙烯酸,丙烯酸铵,丙烯酸酯,丙烯酰胺,苯乙烯磺酸,苯乙烯磺酸铵和苯乙烯磺酸酯组成的组中。

    Method for producing hollow structural body
    86.
    发明授权
    Method for producing hollow structural body 有权
    中空结构体的制造方法

    公开(公告)号:US08668851B2

    公开(公告)日:2014-03-11

    申请号:US13739967

    申请日:2013-01-11

    Abstract: It is intended to provide a method of producing a hollow construct, which may be in various shapes such as a fiber or a film as well as in various sizes and has chemical resistance, made of a fluorinated hydrocarbon polymer, a fluorinated carbon polymer or a polymer carrying a nitrogen-containing group, a silicon-containing group, an oxygen-containing group, a phosphorus-containing group or a sulfur-containing group having been introduced into the above-described polymer; and a hollow construct obtained by this method.

    Abstract translation: 本发明提供一种中空构造体的制造方法,该中空构造体可以是各种形状,例如纤维或膜,以及各种尺寸,并且具有耐化学性,由氟化烃聚合物,氟化碳聚合物或 携带含氮基团的聚合物,含有导入到上述聚合物中的含氮基团,含氧基团,含磷基团或含硫基团; 和通过该方法获得的中空构造。

    METHOD FOR PRODUCING HOLLOW STRUCTURAL BODY
    87.
    发明申请
    METHOD FOR PRODUCING HOLLOW STRUCTURAL BODY 有权
    生产中空结构体的方法

    公开(公告)号:US20130187305A1

    公开(公告)日:2013-07-25

    申请号:US13739967

    申请日:2013-01-11

    Abstract: It is intended to provide a method of producing a hollow construct, which may be in various shapes such as a fiber or a film as well as in various sizes and has chemical resistance, made of a fluorinated hydrocarbon polymer, a fluorinated carbon polymer or a polymer carrying a nitrogen-containing group, a silicon-containing group, an oxygen-containing group, a phosphorus-containing group or a sulfur-containing group having been introduced into the above-described polymer; and a hollow construct obtained by this method.

    Abstract translation: 本发明提供一种中空构造体的制造方法,该中空构造体可以是各种形状,例如纤维或膜,以及各种尺寸,并且具有耐化学性,由氟化烃聚合物,氟化碳聚合物或 携带含氮基团的聚合物,含有导入到上述聚合物中的含氮基团,含氧基团,含磷基团或含硫基团; 和通过该方法获得的中空构造。

    METHOD FOR PRODUCING TETRAFLUOROBORATE
    89.
    发明申请
    METHOD FOR PRODUCING TETRAFLUOROBORATE 有权
    生产四氢叶酸的方法

    公开(公告)号:US20120082608A1

    公开(公告)日:2012-04-05

    申请号:US13377795

    申请日:2009-06-19

    Abstract: An object of the invention is to provide a tetrafluoroborate producing method that allows high-yield, high-efficiency production of a tetrafluoroborate by a continuous process, a tetrafluoroborate-containing electrolyte, and an electrical storage device including such an electrolyte. The invention provides a method for producing a tetrafluoroborate, which includes: a first step including dissolving boron trifluoride gas in an organic solvent; a second step including adding, to the organic solvent, a fluoride (MFn, wherein M represents a metal or NH4, and 1≦n≦3) in an amount stoichiometrically equivalent to or less than the amount of the boron trifluoride so that a tetrafluoroborate solution is produced; and a third step including circulating the tetrafluoroborate solution through the first step so that the boron trifluoride gas is dissolved in the tetrafluoroborate solution instead of the organic solvent.

    Abstract translation: 本发明的目的是提供一种四氟硼酸盐的制造方法,其能够通过连续工艺,含有四氟硼酸盐的电解质和包含这种电解质的蓄电装置高产率,高效率地生产四氟硼酸盐。 本发明提供一种四氟硼酸盐的制造方法,其特征在于,包括:将三氟化硼气体溶解在有机溶剂中的第一工序; 第二步,包括以化学计量等于或少于三氟化硼的量向有机溶剂中加入氟化物(MFn,其中M表示金属或NH4,以及1& NlE; n& NlE; 3),使得四氟硼酸盐 生产溶液; 以及第三步骤,包括使第一步骤中的四氟硼酸溶液循环,使得三氟化硼气体溶解在四氟硼酸盐溶液中而不是有机溶剂。

    PROCESS FOR THE PREPARATION OF FLUORINE COMPOUND
    90.
    发明申请
    PROCESS FOR THE PREPARATION OF FLUORINE COMPOUND 审中-公开
    制备氟化合物的方法

    公开(公告)号:US20110311426A1

    公开(公告)日:2011-12-22

    申请号:US13148930

    申请日:2010-02-04

    Abstract: An object of the invention is to provide a process for preparing a fluorine compound, which can easily give the objective fluorine compound using an oxygen-containing compound as a raw material without forming water as impurities as a by-product. The process for preparing a fluorine compound according to the invention includes reacting an oxygen-containing compound, which is at least one kind selected from the group consisting of oxides, hydroxides, hydrates, carbonic acid compounds, hydrogencarbonic acid compounds, boric acid compounds, sulfuric acid compounds, sulfurous acid compounds, phosphorous acid compounds and phosphoric acid compounds of at least any one kind selected from the group consisting of metal elements, H, B, C, N, Si, P, S, As, Se, Te and halogens, at least with carbonyl fluoride to form at least a fluorine compound and carbon dioxide without forming water as a by-product.

    Abstract translation: 本发明的目的是提供一种制备氟化合物的方法,其可以使用含氧化合物作为原料容易地得到目标氟化合物,而不会形成作为副产物的杂质的水。 根据本发明的制备氟化合物的方法包括使含氧化合物是选自氧化物,氢氧化物,水合物,碳酸化合物,碳酸化合物,硼酸化合物,硫酸中的至少一种的含氧化合物 H,B,C,N,Si,P,S,As,Se,Te和卤素中的至少一种选自酸性化合物,亚硫酸化合物,亚磷酸化合物和磷酸化合物 至少与碳酰氟形成至少一种氟化合物和二氧化碳,而不会形成水作为副产物。

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