发明名称 |
Method for producing pure water |
摘要 |
A method for producing pure water is provided which reduces non-ionic silica in pure or ultrapure water. With the method, non-ionic silica which is contained in water is brought into contact with ozone having a concentration of at least 1 ppm for at least 20 minutes to react therewith and, simultaneously with or after this reaction process, irradiated with ultraviolet rays to undergo ionization and passed through an anion exchange column. The processed water passed through this ion exchange resin column contains practically no non-ionic silica.
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申请公布号 |
US5554295(A) |
申请公布日期 |
1996.09.10 |
申请号 |
US19950439124 |
申请日期 |
1995.05.11 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
BAN, COZY;YANAGI, MOTONORI;FUKUMOTO, TAKAAKI;MANABE, TOSHIKI;YANOME, HIROSHI;KAWADA, KAZUHIKO |
分类号 |
C02F1/20;C02F1/32;C02F1/42;C02F1/78;C02F9/00;(IPC1-7):C02F9/00 |
主分类号 |
C02F1/20 |
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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