发明授权
- 专利标题： Low temperature process for producing nano-sized titanium dioxide particles
- 专利标题（中）： 用于生产纳米二氧化钛颗粒的低温工艺
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申请号： US12310615申请日： 2007-09-11
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公开(公告)号： US08557217B2公开(公告)日： 2013-10-15
- 发明人: Insoo Kim , Woo Jin Lee , Young Jin Kim , Charles E. Smith, Jr.
- 申请人： Insoo Kim , Woo Jin Lee , Young Jin Kim , Charles E. Smith, Jr.
- 申请人地址： US AR Conway
- 专利权人： Tokusen, U.S.A., Inc.
- 当前专利权人： Tokusen, U.S.A., Inc.
- 当前专利权人地址： US AR Conway
- 代理机构： Richard Blakely Glasgow
- 国际申请： PCT/US2007/019674 WO 20070911
- 国际公布： WO2008/036176 WO 20080327
- 主分类号： C01G23/053
- IPC分类号： C01G23/053 ; C01B15/01
摘要：
A process for synthesizing nano-sized rutile, anatase, or a mixture of rutile and anatase TiO2 powder. The process includes the steps of: 1) forming a Ti-peroxo complex by mixing H2O2 with a Ti compound, and 2) heating the Ti-peroxo complex at a temperature of above 50° C. A primary particle size of TiO2 particles, synthesized by the method, is below 50 nm, and an agglomerated particle size thereof after a washing/dry process is below about 10 μm. The major characteristics of the present invention are that it is a low temperature process, a highly concentrated synthesis, and high production yield of above 90%.