发明名称 |
CATION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING POTASSIUM HYDROXIDE AQUEOUS SOLUTION |
摘要 |
To provide a cation exchange membrane which is less susceptible to swelling or elongation during electrolysis of a potassium chloride aqueous solution even without permitting water absorption or swelling immediately prior to mounting it in an electrolyzer, and a method whereby it possible to stably produce a potassium hydroxide aqueous solution without necessity to conduct an operation for water absorption or swelling immediately prior to mounting the membrane in the electrolyzer. A cation exchange membrane comprising a polymer having cation exchange groups, wherein in cations (100 mol %) contained in the cation exchange membrane, the total of potassium ions and sodium ions is at least 99 mol %, and in the total (100 mol %) of potassium ions and sodium ions contained in the cation exchange membrane, the potassium ions are 80-98 mol % and the sodium ions are 20-2 mol %, |
申请公布号 |
US2017029585(A1) |
申请公布日期 |
2017.02.02 |
申请号 |
US201615291121 |
申请日期 |
2016.10.12 |
申请人 |
Asahi Glass Company, Limited |
发明人 |
KUSANO Hiromitsu;KANEKO Takayuki;YAMAKI Yasushi;ENDO Takayuki |
分类号 |
C08J5/22;C25B13/08;B01J39/20;C25B1/16;C01D1/04;B01J39/04 |
主分类号 |
C08J5/22 |
代理机构 |
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代理人 |
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主权项 |
1. A cation exchange membrane comprising a polymer having cation exchange groups, characterized in that in cations (100 mol %) contained in the cation exchange membrane, the total of potassium ions and sodium ions is at least 99 mol %, and in the total (100 mol %) of potassium ions and sodium ions contained in the cation exchange membrane, potassium ions are from 80 to 98 mol %, and sodium ions are from 20 to 2 mol %. |
地址 |
Chiyoda-ku JP |