会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 40. 发明授权
    • Process for producing metal oxide particle and exhaust gas purifying catalyst
    • 制备金属氧化物颗粒和废气净化催化剂的方法
    • US07989387B2
    • 2011-08-02
    • US10593629
    • 2005-04-27
    • Masahide Miura
    • Masahide Miura
    • B01J23/10
    • B01J37/03B01D53/945B01D2255/102B01D2255/206B01D2255/20715B01J21/063B01J21/066B01J23/10B01J23/63B01J35/0006B01J35/0013Y02T10/22
    • The present invention provides an exhaust gas purifying catalyst and a process for producing a metal oxide particle comprising multiple species of metal oxides and capable of satisfactorily exerting the properties of respective metal oxides. A process of the present invention comprises providing a sol containing at least a population of first colloid particles and a population of second colloid particles differing in the isoelectric point with each other; adjusting the pH of the sol to be closer to the isoelectric point of the population of first colloid particles than to the isoelectric point of the population of second colloid particles, thereby aggregating the population of first colloid particles; adjusting the pH of the sol, thereby aggregating the population of second colloid particles onto the population of first colloid particles aggregated; and drying and firing the obtained aggregate.
    • 本发明提供了一种废气净化催化剂及其制备包含多种金属氧化物的金属氧化物颗粒的方法,能够令人满意地发挥各种金属氧化物的性能。 本发明的方法包括提供至少含有第一胶体颗粒群和等电点不同的第二胶体粒子群的溶胶; 调节溶胶的pH值比第二胶体颗粒群体的等电点更接近第一胶体颗粒群的等电点,从而聚集第一胶体颗粒群; 调节溶胶的pH值,从而将第二胶体颗粒群聚集在聚集的第一胶体颗粒群上; 并干燥并焙烧得到的骨料。