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    • 4. 发明申请
    • CUPROUS OXIDE POWDER AND METHOD FOR PRODUCING SAME
    • 氧化铝粉及其制造方法
    • US20140199204A1
    • 2014-07-17
    • US14240069
    • 2012-09-13
    • Yuki KaneshiroShinichi SuenagaAkihiro Asano
    • Yuki KaneshiroShinichi SuenagaAkihiro Asano
    • C01G3/02B22F9/20C22C9/00
    • B22F9/20B22F9/24C01G3/02C01P2002/50C01P2004/03C01P2004/51C01P2004/62C22C9/00C22C29/12
    • There are provided a cuprous oxide powder having a smaller particle diameter than that of conventional cuprous oxide powders, and a method for producing the cuprous oxide powder by a chemical reducing process. In a method for producing a cuprous oxide powder by adding a reducing agent, such as a reducing sugar, to a solution containing copper hydroxide, which is formed by adding one of an alkali solution and a copper ion containing solution to the other thereof, to deposit cuprous oxide particles by reduction, 0.00001 to 0.04 moles (10 to 40000 ppm) of ferrous ions with respect to the amount of copper ions in the copper ion containing solution are added to the copper ion containing solution before forming copper hydroxide, to produce a cuprous oxide powder which has a mean primary particle diameter of not greater than 0.5 micrometers when it is measured by a scanning electron microscope (SEM), the cuprous oxide powder having a 50% particle diameter (D50 diameter) of not greater than 0.8 micrometers when it is calculated by a laser diffraction type particle size distribution measurement, the cuprous oxide powder containing 0.30 ppm or more of iron.
    • 提供了比常规氧化亚铜粉末小的粒径的氧化亚铜粉末,以及通过化学还原方法制造氧化亚铜粉末的方法。 在通过将还原糖等还原剂添加到通过将碱溶液和含有铜离子的溶液中的一种添加到另一方而形成的含有氢氧化铜的溶液的方法中, 在形成氢氧化铜之前,将含有铜离子的溶液中的铜离子的量,通过还原,将0.00001〜0.04摩尔(10〜40000ppm)的亚铁离子沉积在含铜离子的溶液中, 当通过扫描电子显微镜(SEM)测量时,平均一次粒径不大于0.5微米的氧化亚铜粉末,氧化亚铜粉末的直径为50%(D50直径)不大于0.8微米,当 通过激光衍射型粒度分布测定法计算出含有0.30ppm以上铁的氧化亚铜粉末。
    • 6. 发明授权
    • Cuprous oxide powder and method for producing same
    • 氧化亚铜粉及其制造方法
    • US09211587B2
    • 2015-12-15
    • US14240069
    • 2012-09-13
    • Yuki KaneshiroShinichi SuenagaAkihiro Asano
    • Yuki KaneshiroShinichi SuenagaAkihiro Asano
    • B22F9/00B22F9/20C01G3/02C22C9/00B22F9/24C22C29/12
    • B22F9/20B22F9/24C01G3/02C01P2002/50C01P2004/03C01P2004/51C01P2004/62C22C9/00C22C29/12
    • There are provided a cuprous oxide powder having a smaller particle diameter than that of conventional cuprous oxide powders, and a method for producing the cuprous oxide powder by a chemical reducing process. In a method for producing a cuprous oxide powder by adding a reducing agent, such as a reducing sugar, to a solution containing copper hydroxide, which is formed by adding one of an alkali solution and a copper ion containing solution to the other thereof, to deposit cuprous oxide particles by reduction, 0.00001 to 0.04 moles (10 to 40000 ppm) of ferrous ions with respect to the amount of copper ions in the copper ion containing solution are added to the copper ion containing solution before forming copper hydroxide, to produce a cuprous oxide powder which has a mean primary particle diameter of not greater than 0.5 micrometers when it is measured by a scanning electron microscope (SEM), the cuprous oxide powder having a 50% particle diameter (D50 diameter) of not greater than 0.8 micrometers when it is calculated by a laser diffraction particle size analysis, the cuprous oxide powder containing 30 ppm or more of iron.
    • 提供了比常规氧化亚铜粉末小的粒径的氧化亚铜粉末,以及通过化学还原方法制造氧化亚铜粉末的方法。 在通过将还原糖等还原剂添加到通过将碱溶液和含有铜离子的溶液中的一种添加到另一方而形成的含有氢氧化铜的溶液的方法中, 在形成氢氧化铜之前,将含有铜离子的溶液中的铜离子的量,通过还原,将0.00001〜0.04摩尔(10〜40000ppm)的亚铁离子沉积在含铜离子的溶液中, 当通过扫描电子显微镜(SEM)测量时,平均一次粒径不大于0.5微米的氧化亚铜粉末,氧化亚铜粉末的直径为50%(D50直径)不大于0.8微米,当 通过激光衍射粒度分析计算出氧化亚铁粉末含有30ppm以上的铁。