| 发明名称 | Method for producing inorganic oxide particles | ||
| 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; anddrying the particles, whereinthe 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. | ||
| 申请公布号 | US9079777(B2) | 申请公布日期 | 2015.07.14 |
| 申请号 | US201414533560 | 申请日期 | 2014.11.05 |
| 申请人 | TOKUYAMA CORPORATION | 发明人 | Maehara Takayuki;Komatsubara Tadaharu;Yamano Yuya;Ishizu Kenichi;Sato Makoto;Taira Hiroaki;Kato Hiroshi |
| 分类号 | C07F7/02;C01B33/146;C01B13/36;C01B33/18;C01B33/148;C01G23/04;C01G25/02;C07F7/08;C07F7/10 | 主分类号 | C07F7/02 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. 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 by using of a mixture of water and an alcohol as a solvent; 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. | ||
| 地址 | Shunan-shi JP | ||