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公开(公告)号:US08202370B2
公开(公告)日:2012-06-19
申请号:US11924052
申请日:2007-10-25
申请人: Shigeru Sakurai , Masaharu Emoto
发明人: Shigeru Sakurai , Masaharu Emoto
CPC分类号: C11D3/046 , B08B3/00 , C11D11/0023 , C11D11/0041 , F22B37/486 , F23J3/02 , F28G9/00
摘要: To provide a method for removing an acidic deposit containing a sulfur compound, whereby the terminal point of the cleaning state can be ascertained simply and efficiently without necessity to visually directly observe the cleaning state or to observe the behavior of the pH value of the cleaning fluid. A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with a prescribed amount of an aqueous cleaning fluid, characterized in that the concentration of sulfate ion (SO42−) in the aqueous cleaning fluid is measured, and the contact with the aqueous cleaning fluid is terminated after the increase per hour of the measured value becomes 15 not more than 10%.
摘要翻译: 为了提供一种除去含有硫化合物的酸性沉积物的方法,由此可以简单有效地确定清洁状态的终点,而不必直观地观察清洁状态或观察清洗液的pH值的行为 。 一种除去含有硫化合物的酸性沉积物的方法,其包括使酸性沉积物与规定量的水性清洗液接触,其特征在于,测量所述水性清洗液中的硫酸根离子(SO42-)的浓度, 在每小时测量值增加到不超过10%之后,与含水清洗液接触终止。
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公开(公告)号:US20080053483A1
公开(公告)日:2008-03-06
申请号:US11924052
申请日:2007-10-25
申请人: Shigeru Sakurai , Masaharu Emoto
发明人: Shigeru Sakurai , Masaharu Emoto
IPC分类号: B08B7/04
CPC分类号: C11D3/046 , B08B3/00 , C11D11/0023 , C11D11/0041 , F22B37/486 , F23J3/02 , F28G9/00
摘要: To provide a method for removing an acidic deposit containing a sulfur compound, whereby the terminal point of the cleaning state can be ascertained simply and efficiently without necessity to visually directly observe the cleaning state or to observe the behavior of the pH value of the cleaning fluid. A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with a prescribed amount of an aqueous cleaning fluid, characterized in that the concentration of sulfate ion (SO42−) in the aqueous cleaning fluid is measured, and the contact with the aqueous cleaning fluid is terminated after the increase per hour of the measured value becomes not more than 10%.
摘要翻译: 为了提供一种除去含有硫化合物的酸性沉积物的方法,由此可以简单有效地确定清洁状态的终点,而不必直观地观察清洁状态或观察清洗液的pH值的行为 。 一种除去含有硫化合物的酸性沉积物的方法,包括使酸性沉积物与规定量的含水清洗液接触,其特征在于硫酸根离子(SO 2 SO 3) - SUP>),并且在测量值每小时增加不超过10%之后,与含水清洁流体的接触终止。
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公开(公告)号:US06524397B2
公开(公告)日:2003-02-25
申请号:US09825829
申请日:2001-04-05
申请人: Shigeru Sakurai , Masaharu Emoto , Hachiro Hirano , Makoto Yoshida , Hiroaki Noda , Michihiro Kawano
发明人: Shigeru Sakurai , Masaharu Emoto , Hachiro Hirano , Makoto Yoshida , Hiroaki Noda , Michihiro Kawano
IPC分类号: B08B304
摘要: A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal hydrogencarbonate to remove it.
摘要翻译: 一种除去含有硫化合物的酸性沉积物的方法,其包括使酸性沉积物与碱金属碳酸盐和/或碱金属碳酸氢盐的水溶液接触以除去它。
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