发明名称 |
ELEKTROLYS AV VATTENLOSNING AV NATRIUMKLORID |
摘要 |
An electrolysis of an aqueous solution of sodium chloride is carried out by employing a fluorinated cation exchange membrane having an ion-exchange capacity of 0.8 to 2.0 meq/g dry polymer and having carboxylic acid groups as functional groups and maintaining a concentration of an aqueous solution of sodium hydroxide in a cathode compartment in a range of 20 to 45 wt. % and maintaining a calcium concentration in the aqueous solution of sodium chloride to lower than 0.08 mg/liter. The purification of the aqueous solution of sodium chloride to reduce the calcium concentration is carried out in a system comprising the first and second chelate ion-exchange towers which are connected through a detector for detecting impurities in the aqueous solution. |
申请公布号 |
SE7805137(A) |
申请公布日期 |
1978.11.05 |
申请号 |
SE19780005137 |
申请日期 |
1978.05.03 |
申请人 |
* ASAHI GLASS CO LTD |
发明人 |
Y * ODA;M * SUHARA;S * GOTO;T * HUKUSHIMA;K * MIURA;T * HAMANO |
分类号 |
C01D3/14;C08J5/22;C25B1/46;(IPC1-7):C25B1/16 |
主分类号 |
C01D3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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