发明名称 |
CONTINUOUS PREPARATION METHOD OF NANO-SIZED ZIRCONIA HYDRATE SOL USING MICROWAVE, WHICH CAN OBTAIN A SOL WHERE SPHERICAL ZIRCONIA HYDRATE PARTICLES HAVING AN AVERAGE DIAMETER OF ABOUT 1-250 NM ARE DISPERSED |
摘要 |
PURPOSE: A method for preparing continuously a nano-sized zirconia hydrate sol is provided, to obtain a sol where a spherical zirconia hydrate particle having an average diameter of about 1-250 nm is dispersed. CONSTITUTION: The method comprises the steps of continuously supplying a 0.001-0.2 M zirconium salt aqueous solution(3a) into the reaction pipe(2) of a reactor(1) comprising at least one reaction pipe, and applying microwave inside the reactor to allow the zirconium salt aqueous solution to be heated itself in flowing state to obtain a zirconia hydrate sol(6). Preferably the cross-section of the reaction pipe is circle or concentric circle, and the zirconium salt aqueous solution is heated at a temperature of 70-100 deg.C inside the reactor by using an additional heating means other than microwave.
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申请公布号 |
KR20040078770(A) |
申请公布日期 |
2004.09.13 |
申请号 |
KR20030013620 |
申请日期 |
2003.03.05 |
申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
KIM, HUI YEONG;LIM, HYEONG SEOP;PARK, YONG GI;YOON, GYEONG GU |
分类号 |
C01G25/00;C01G25/02;C10G25/00;C10G25/02;(IPC1-7):C01G25/00 |
主分类号 |
C01G25/00 |
代理机构 |
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