发明授权
- 专利标题: Method for producing inorganic oxide particles
- 专利标题(中): 无机氧化物粒子的制造方法
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申请号: US14533560申请日: 2014-11-05
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公开(公告)号: US09079777B2公开(公告)日: 2015-07-14
- 发明人: Takayuki Maehara , Tadaharu Komatsubara , Yuya Yamano , Kenichi Ishizu , Makoto Sato , Hiroaki Taira , Hiroshi Kato
- 申请人: TOKUYAMA CORPORATION
- 申请人地址: JP Shunan-shi
- 专利权人: TOKUYAMA CORPORATION
- 当前专利权人: TOKUYAMA CORPORATION
- 当前专利权人地址: JP Shunan-shi
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2010-035111 20100219; JP2010-122277 20100528; JP2010-149306 20100630
- 主分类号: C07F7/02
- IPC分类号: C07F7/02 ; C01B33/146 ; C01B13/36 ; C01B33/18 ; C01B33/148 ; C01G23/04 ; C01G25/02 ; C07F7/08 ; C07F7/10
摘要:
The present invention relates to a method for producing inorganic oxide particles, comprising at least the following steps of: coagulating a dispersion obtained by carrying out the hydrolysis reaction and the polycondensation reaction of a metal alkoxide in the presence of a basic catalyst; filtering the dispersion to obtain particles; and drying the particles, wherein the step of coagulating the dispersion is carried out by adding a coagulant comprising at least one compound selected from the group consisting of carbon dioxide, ammonium carbonate, ammonium hydrogen carbonate and ammonium carbamate to the dispersion. The inorganic oxide particles obtained by the method of the present invention have high purity and are excellent in flowability.
公开/授权文献
- US20150056119A1 METHOD FOR PRODUCING INORGANIC OXIDE PARTICLES 公开/授权日:2015-02-26
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