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    • 87. 发明专利
    • Method for producing metal oxide powder, method for producing anatase-type titanium oxide powder, and method for producing sulfur-containing anatase-type titanium oxide powder
    • 用于制造金属氧化物粉末的方法,用于生产氧化钛粉末的方法,以及用于生产含硫的纳米氧化钛粉末的方法
    • JP2008273815A
    • 2008-11-13
    • JP2008057564
    • 2008-03-07
    • Toho Titanium Co Ltd東邦チタニウム株式会社
    • TAKI DAISUKETANI SEIICHIRO
    • C01G23/053C01B13/36C01G23/08
    • PROBLEM TO BE SOLVED: To provide a method for producing a metal oxide powder which is fine and hardly aggregates, that is to say, which is fine and has excellent dispersibility.
      SOLUTION: The method for producing the metal oxide powder includes: a metal salt neutralization reaction process for obtaining a metal salt neutralization reaction slurry containing a neutralized product of a metal salt and an ammonium salt by bringing an aqueous ammonia solution into contact with an aqueous solution of the metal salt to neutralize the metal salt; a first drying process for obtaining a neutralized product of the metal salt containing the ammonium salt by drying the metal salt neutralization reaction slurry after allowing the ammonium salt to exist in the metal salt neutralization reaction slurry so that the molar ratio of the ammonium salt to metal element becomes within a range of 0.8-4.4; and an ammonium salt removing process for obtaining the metal oxide powder by washing the neutralized product of the metal salt containing the ammonium salt.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:提供精细且难以凝集的金属氧化物粉末的制造方法,即细小且分散性优异的金属氧化物粉末的制造方法。 解决方案:金属氧化物粉末的制造方法包括:通过使氨水溶液与氨水溶液接触而获得含有金属盐和铵盐的中和物的金属盐中和反应浆料的金属盐中和反应方法 金属盐的水溶液中和金属盐; 第一干燥方法,用于通过在使金属盐中和反应浆料中存在铵盐之后干燥金属盐中和反应浆料来获得含有铵盐的金属盐的中和物,使得铵盐与金属的摩尔比 元素在0.8-4.4的范围内; 以及通过洗涤含有铵盐的金属盐的中和物得到金属氧化物粉末的铵盐去除方法。 版权所有(C)2009,JPO&INPIT