发明公开
- 专利标题： ION EXCHANGE MEMBRANE FOR ALKALI CHLORIDE ELECTROLYSIS, AND ALKALI CHLORIDE ELECTROLYSIS APPARATUS
- 专利标题（中）： 氯化碱电解用离子交换膜和氯化碱电解装置
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申请号： EP16758976.1申请日： 2016-03-02
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公开(公告)号： EP3266903A1公开(公告)日： 2018-01-10
- 发明人: KANEKO, Takayuki , KUSANO, Hiromitsu , YAMAKI, Yasushi , NISHIO, Takuo
- 申请人： Asahi Glass Company, Limited
- 申请人地址： 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 专利权人： Asahi Glass Company, Limited
- 当前专利权人： Asahi Glass Company, Limited
- 当前专利权人地址： 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 代理机构： Müller-Boré & Partner Patentanwälte PartG mbB
- 优先权： JP2015041301 20150303
- 国际公布： WO2016140283 20160909
- 主分类号： C25B13/02
- IPC分类号： C25B13/02 ; C01B7/03 ; C01D1/04 ; C25B9/00 ; 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.
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.
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