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1.发明公开ION-EXCHANGE MEMBRANE FOR ALKALI CHLORIDE ELECTROLYSIS, MANUFACTURING METHOD, AND ALKALI CHLORIDE ELECTROLYSIS DEVICE 审中-公开碱金属氯化物电解用离子交换膜，制造方法，碱性氯化物电解装置
公开(公告)号：EP3219830A1
公开(公告)日：2017-09-20
申请号：EP15858150.4
申请日：2015-11-10
摘要： To provide an ion exchange membrane for alkali chloride electrolysis which has high membrane strength and low membrane resistance, thereby capable of reducing the electrolysis voltage during alkali chloride electrolysis. In this ion exchange membrane (1) for alkali chloride electrolysis, a reinforcing material 20 formed by weaving reinforcing yarns 22 and sacrificial yarns 24 is disposed in a layer (S) 14, and layer (S) 14 has elution portions 28 formed by elution of at least portions of the sacrificial yarns 24. In a cross section perpendicular to reinforcing yarns of the warp, the average distance (d1) from the center of a reinforcing yarn 22 to the center of the adjacent reinforcing yarn 22, the total area (P) obtained by adding the cross-sectional area of an elution portion 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution portion 28, the number (n) of elution portions between adjacent reinforcing yarns 22, and the ion exchange capacity of a layer (Sa) located on the most anode side in the layer (S) 14 during alkali chloride electrolysis, are controlled to be within specific ranges, respectively.
摘要翻译： 本发明提供一种氯化碱电解用离子交换膜，其膜强度高，膜电阻低，能够降低碱金属氯化物电解时的电解电压。 在用于碱金属氯化物电解的该离子交换膜（1）中，通过编织加强纱线22和牺牲纱线24形成的增强材料20设置在层（S）14中，并且层（S）14具有通过洗脱形成的洗脱部分28 至少部分牺牲纱线24.在垂直于经纱加强纱线的横截面上，从加强纱线22的中心到相邻加强纱线22的中心的平均距离（d1），总面积（ P），其通过将洗脱部分28的横截面积和残留在洗提部分28中的牺牲纱线24的横截面积，相邻补强纱线22之间的洗提部分的数量（n）和离子 在碱金属氯化物电解过程中层（S）14中位于最阳极侧的层（Sa）的交换容量分别被控制在特定范围内。
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2.发明公开ION EXCHANGE MEMBRANE FOR ALKALI CHLORIDE ELECTROLYSIS AND ALKALI CHLORIDE ELECTROLYSIS DEVICE 有权离子交换膜用于碱性氯化物电解和碱性氯化物电解装置
公开(公告)号：EP3216896A1
公开(公告)日：2017-09-13
申请号：EP15857172.9
申请日：2015-11-06
摘要： To provide an ion exchange membrane for alkali chloride electrolysis for which membrane strength is increased while membrane resistance is reduced to reduce electrolysis voltage during alkali chloride electrolysis and which prevents peeling between layers (S) and a layer (C). The ion exchange membrane for alkali chloride electrolysis comprises a layer (C) which comprises a fluorinated polymer having carboxylic acid functional groups, at least two layers (S) which comprise a fluorinated polymer having sulfonic acid functional groups, and a reinforcing material, wherein the layers (S) include a layer (Sa) and a layer (Sb), the layer (Sa) is a layer which is adjacent to the layer (C), the layer (Sb) is a layer which is not adjacent to the layer (C), the reinforcing material is disposed in the layer (Sb) substantially in parallel to the layer (Sb) in a state not in contact with the layer (Sa), and the ion exchange capacity of the layer (Sa) is lower than the ion exchange capacity of the layer (Sb).
摘要翻译： 本发明提供一种氯化碱电解用离子交换膜，其膜电阻升高，同时降低膜电阻，降低碱金属氯化物电解时的电解电压，防止层（S）与层（C）之间的剥离。 用于碱金属氯化物电解的离子交换膜包括包含具有羧酸官能团的氟化聚合物的层（C），包含具有磺酸官能团的氟化聚合物的至少两个层（S）和增强材料，其中 层（S）包括层（Sa）和层（Sb），层（Sa）是与层（C）相邻的层，层（Sb）是与层不相邻的层 （C）中，增强材料以不与层（Sa）接触的状态与层（Sb）大致平行地配置在层（Sb）中，层（Sa）的离子交换容量较低 比层（Sb）的离子交换容量大。
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公开(公告)号：EP3348675A1
公开(公告)日：2018-07-18
申请号：EP16844453.7
申请日：2016-09-08
CPC分类号： C08J5/2293 , C08J5/22 , C08J5/2225 , C08J2300/102 , C08J2300/105 , C25B1/34 , C25B1/46 , C25B9/00 , C25B13/08
摘要： To provide a method whereby it is possible to efficiently produce an ion exchange membrane for alkali chloride electrolysis, which has high current efficiency and high alkali resistance at the time of electrolyzing an alkali chloride. This is a method for producing an ion exchange membrane 1 for alkali chloride electrolysis, having a layer (C) 12 containing a fluorinated polymer (A) having carboxylic acid type functional groups, by immersing an ion exchange membrane precursor film having a precursor layer (C') containing a fluorinated polymer (A') having groups convertible to carboxylic acid type functional groups, in an aqueous alkaline solution comprising an alkali metal hydroxide, a water-soluble organic solvent and water, and subjecting the groups convertible to carboxylic acid type functional groups to hydrolysis treatment to convert them to carboxylic acid type functional groups, wherein the concentration of the water-soluble organic solvent is from1 to 60 mass% in the alkaline aqueous solution (100 mass%); the proportion of structural units having carboxylic acid type functional groups in the fluorinated polymer (A) is from 14.00 to 14.50 mol%; and the resistivity in the layer (C) 12 is from 3.0×10 3 to 25.0×10 3 Ω·cm.
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公开(公告)号：EP3348673A1
公开(公告)日：2018-07-18
申请号：EP16844451.1
申请日：2016-09-08
CPC分类号： C25B1/46 , C08F214/26 , C08J5/22 , C08J5/2225 , C08J5/225 , C08J2327/24 , C25B9/00 , C25B9/18 , C25B13/08
摘要： To provide a production method whereby an ion exchange membrane for alkali chloride electrolysis can be obtained which has high current efficiency, little variation in current efficiency and high alkaline resistance. This is a method for producing an ion exchange membrane 1 having a layer (C) 12 containing a fluorinated polymer (A) having carboxylic acid type functional groups, by immersing an ion exchange membrane precursor film having a precursor layer (C') containing a fluorinated polymer (A') having groups convertible to carboxylic acid type functional groups, in an aqueous alkaline solution comprising an alkali metal hydroxide, a water-soluble organic solvent and water, and converting the groups convertible to carboxylic acid type functional groups to carboxylic acid functional groups, wherein the concentration of the water-soluble organic solvent is from 1 to 60 mass% in the aqueous alkaline solution (100 mass%); the temperature of the aqueous alkaline solution is at least 40°C and less than 80°C; and the proportion of structural units having carboxylic acid type functional groups in the fluorinated polymer (A) is from 13.0 to 14.50 mol% in all structural units (100 mol%) in the fluorinated polymer (A).
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5.发明公开METHOD OF MANUFACTURING ION EXCHANGE MEMBRANE FOR ELECTROLYSIS, AND ION EXCHANGE MEMBRANE FOR ELECTROLYSIS 审中-公开制备用于电解的离子交换膜的方法以及用于电解的离子交换膜
公开(公告)号：EP3284848A1
公开(公告)日：2018-02-21
申请号：EP16780011.9
申请日：2016-04-11
CPC分类号： B01J39/05 , B01J39/04 , B01J39/20 , B01J47/12 , C08J5/22 , C08J5/2281 , C08J2327/18 , C08J2329/10 , C08J2367/02 , C25B1/46 , C25B9/08 , C25B13/02 , C25B13/08 , D02G3/04 , D02G3/36
摘要： To provide a process for producing an ion exchange membrane for electrolysis which has a low membrane resistance and which is capable of reducing the electrolysis voltage during the electrolysis, even if the membrane strength is increased, an ion exchange membrane for electrolysis, a precursor membrane of an ion exchange membrane for electrolysis, and an electrolysis apparatus.
In a fluorinated polymer having groups convertible to ion exchange groups, a reinforcing fabric 20A formed by weaving covered yarns 21 each comprising a reinforcing fabric 22 and a sacrificial material covering at least a portion of the outer peripheral surface of the reinforcing yarn 22, to produce a precursor membrane of an ion exchange membrane, and from the precursor membrane, at least a portion of the sacrificial material in the reinforcing fabric is eluted to form a reinforcing material and at the same time, the groups convertible to ion exchange groups are converted to ion exchange groups, to produce an ion exchange membrane for electrolysis.摘要翻译： 本发明提供一种电解用离子交换膜的制造方法，其膜电阻低，并且能够降低电解时的电解电压，即使提高膜强度，也可以使用电解用离子交换膜， 电解用离子交换膜，电解装置。 在具有能够转换为离子交换基团的基团的氟化聚合物中，通过编织覆盖纱线21形成的增强织物20A，每个增强织物20A包括增强织物22和覆盖增强纱线22的外周表面的至少一部分的牺牲材料，以生产 离子交换膜的前体膜和来自前体膜的增强织物中的牺牲材料的至少一部分被洗脱以形成增强材料，同时可转化为离子交换基团的基团被转化成 离子交换基团，以产生用于电解的离子交换膜。
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6.发明公开ION EXCHANGE MEMBRANE FOR ALKALI CHLORIDE ELECTROLYSIS, AND ALKALI CHLORIDE ELECTROLYSIS APPARATUS 审中-公开氯化碱电解用离子交换膜和氯化碱电解装置
公开(公告)号：EP3266903A1
公开(公告)日：2018-01-10
申请号：EP16758976.1
申请日：2016-03-02
CPC分类号： C08J5/2281 , B01J39/20 , B01J47/12 , C01B7/03 , C08J5/2237 , C08J2427/18 , C25B1/46 , C25B9/00 , C25B13/02 , C25B13/08
摘要： To provide an ion exchange membrane for alkali chloride electrolysis which has a low membrane resistance and which is capable of reducing the electrolysis voltage during the alkali chloride electrolysis, while increasing the membrane strength.
An ion exchange membrane 1 for alkali chloride electrolysis wherein a reinforcing material 20 obtained by weaving with reinforcing yarns 22 and sacrificial yarns 24 is embedded in a fluoropolymer having ion exchange groups, the ion exchange membrane 1 comprises elution holes (28) formed by eluting at least a portion of a material of the sacrificial yarns 24, and in a cross section perpendicular to the length direction of the yarns, the total area (S) obtained by adding the cross-sectional area of an elution hole 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution hole 28 is from 500 to 1,200 µm 2 , and the number (n) of elution holes 28 between adjacent reinforcing yarns 22 is at least 10.摘要翻译： 本发明提供一种碱金属氯化物电解用离子交换膜，其膜电阻低，并且能够降低碱金属氯化物电解时的电解电压，同时提高膜强度。 用于碱金属氯化物电解的离子交换膜1，其中通过用增强纱线22和牺牲纱线24编织而获得的增强材料20被嵌入具有离子交换基团的含氟聚合物中，离子交换膜1包括通过洗脱而形成的洗脱孔（28） 牺牲纱24的材料的至少一部分以及与纱线的长度方向垂直的截面中的，通过将洗脱孔28的截面积和截面积相加得到的总面积（S） 残留在洗脱孔28中的牺牲纱24的面积为500〜1200μm2，相邻的增强纱22间的洗脱孔28的数量（n）为10以上。
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公开(公告)号：EP3348674A1
公开(公告)日：2018-07-18
申请号：EP16844452.9
申请日：2016-09-08
CPC分类号： C25B1/46 , C08F214/26 , C08J5/22 , C08J5/2225 , C08J5/225 , C08J2327/24 , C25B9/00 , C25B9/18 , C25B13/08
摘要： To provide a method capable of efficiently producing an ion exchange membrane for alkali chloride electrolysis which has high current efficiency, little variation in current efficiency and high alkaline resistance. This is a method for producing an ion exchange membrane 1 having a layer (C) 12 containing a fluorinated polymer (A) having carboxylic acid type functional groups, by immersing an ion exchange membrane precursor film having a precursor layer (C') containing a fluorinated polymer (A') having groups convertible to carboxylic acid type functional groups, in an aqueous alkaline solution comprising an alkali metal hydroxide, a water-soluble organic solvent and water, wherein the proportion of structural units having carboxylic acid type functional groups in the fluorinated polymer (A) is from 13.0 to 14.50 mol%; in the layer (C) 12, the value of resistivity is from 4.0×10 3 to 25.0×10 3 Ω·cm, and the variation in resistivity is at most 4.0×10 3 Ω·cm, and the concentration of the water-soluble organic solvent is from 1 to 60 mass% in the alkaline aqueous solution.
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8.发明公开
公开(公告)号：EP3184671A1
公开(公告)日：2017-06-28
申请号：EP15834315.2
申请日：2015-08-20
摘要： To provide an ion exchange membrane for alkali chloride electrolysis, which has low membrane resistance and which reduces the electrolysis voltage during alkali chloride electrolysis, even if the spacing between reinforcing yarns is made narrow to increase the membrane strength. This ion exchange membrane 1 for alkali chloride electrolysis comprises a fluoropolymer containing ion exchange groups; a reinforcing material embedded in the fluoropolymer and formed of reinforcing yarns and optionally contained sacrificial yarns; and elution holes of the sacrificial yarns present between the reinforcing yarns, wherein in a cross section perpendicular to the length direction of the reinforcing yarns forming the reinforcing material, the average distance (d1) from the center of a reinforcing yarn 22 to the center of the adjacent reinforcing yarn 22 is from 750 to 1,000 µm, the total area (S) obtained by adding the cross-sectional area of an elution hole 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution hole 28 is from 500 to 5,000 µm 2 per elution hole, and the number n of elution holes 28 between adjacent reinforcing yarns 22 is from 4 to 6.
摘要翻译： 为了提供碱金属氯化物电解用的离子交换膜，即使增强线之间的间隔变窄以增加膜强度，其具有低的膜电阻并降低碱金属氯化物电解期间的电解电压。 该碱金属氯化物电解用离子交换膜1包含含有离子交换基团的含氟聚合物， 嵌入含氟聚合物中并由增强纱线和任选含有牺牲纱线形成的增强材料; 和存在于增强纱线之间的牺牲纱线的洗脱孔，其中在与形成增强材料的增强纱线的长度方向垂直的横截面中，从增强纱线22的中心到中心的平均距离（d1） 相邻的增强纱线22为750〜1000μm，将洗脱孔28的截面积与留在洗脱孔28内的牺牲纱线24的截面积相加得到的总面积（S）为 每个洗脱孔500-5,000μm2，并且相邻增强纱线22之间的洗脱孔28的数量n为4至6。
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