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    • 1. 发明授权
    • Electrolytic cell for hydrogen peroxide production and process for producing hydrogen peroxide
    • 用于过氧化氢生产的电解槽和生产过氧化氢的方法
    • US06767447B2
    • 2004-07-27
    • US10123114
    • 2002-04-17
    • Masaharu UnoShuhei WakitaMasao SekimotoTsuneto FurutaYoshinori Nishiki
    • Masaharu UnoShuhei WakitaMasao SekimotoTsuneto FurutaYoshinori Nishiki
    • C25B130
    • C25B1/30
    • An electrolytic cell and method of electrolysis for producing hydrogen peroxide at a moderate current density while preventing metal deposition on the cathode surface. A feed water from which multivalent metal ions have been removed and in which a salt of a univalent metal, e.g., sodium sulfate, has been dissolved in a given concentration is prepared with an apparatus for removing multivalent metal ions and dissolving a salt in low concentration. The feed water is supplied to an electrolytic cell. Even when electrolysis is continued, almost no deposition of a hydroxide or carbonate occurs on the cathode because multivalent metal ions are not present in the electrolytic solution. Due to the dissolved salt, a sufficient current density is secured to prevent an excessive load from being imposed on the electrodes, etc. Thus, stable production of hydrogen peroxide is possible over a long period of time.
    • 一种电解槽和电解方法,用于在中等电流密度下生产过氧化氢,同时防止阴极表面上的金属沉积。 用一种除去多价金属离子并溶解盐浓度低的装置制备已经除去多价金属离子并且其中以一定浓度的硫酸钠等单价盐溶解的给水的给水 。 给水供给电解池。 即使继续进行电解,因为在电解液中不存在多价金属离子,所以在阴极上几乎不发生氢氧化物或碳酸盐的沉积。 由于溶解的盐,确保足够的电流密度以防止对电极等施加过大的负荷。因此,可以长期稳定地生产过氧化氢。
    • 2. 发明授权
    • Electrochemical sterilizing and bacteriostatic method
    • 电化学灭菌和抑菌法
    • US07309441B2
    • 2007-12-18
    • US10895317
    • 2004-07-21
    • Philippe RychenLaurent PupunatTsuneto FurutaMasao SekimotoHozumi TanakaYoshinori NishikiShuhei Wakita
    • Philippe RychenLaurent PupunatTsuneto FurutaMasao SekimotoHozumi TanakaYoshinori NishikiShuhei Wakita
    • B01D17/06
    • C02F1/4674C02F2001/46138C02F2305/023
    • A method is disclosed, which is capable of subjecting microorganisms to sterilizing or bacteriostatic treatment with good efficiency as compared with the conventional sterilizing or bacteriostatic method using a noble metal electrode. Microorganism-containing water to be treated is electrochemically treated using an anode having conductive diamond to bring the microorganism into contact with the anode, thereby undergoing sterilization. Since the conductive diamond has a high oxidation potential as compared with other electrode substances, direct oxidation reaction due to contact between a microorganism in water to be treated, such as Legionella bacteria, and the anode surface occurs strongly as compared with other electrodes, thereby enabling effective sterilization. The conductive diamond has a high ability to generate ozone and has an excellent formation efficiency with respect to the generation of hydrogen peroxide and radicals. Accordingly, an indirect sterilizing effect can also be expected.
    • 与使用贵金属电极的常规灭菌或抑菌方法相比,公开了能够以高效率对微生物进行灭菌或抑菌处理的方法。 使用具有导电金刚石的阳极对待处理的含微生物水进行电化学处理,使微生物与阳极接触,从而进行灭菌。 由于与其他电极物质相比,导电金刚石具有高的氧化电位,因此与其他电极相比,由于诸如军团菌等待处理的水中的微生物与微生物之间的接触引起的直接氧化反应强烈地发生,从而使得 有效灭菌。 导电金刚石具有高的产生臭氧的能力,并且在产生过氧化氢和自由基方面具有优异的形成效率。 因此,也可以预期间接杀菌作用。