Process for preparing fine metal oxide particles
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    发明申请
    Process for preparing fine metal oxide particles 有权
    金属氧化物微粒的制备方法

    公开(公告)号:US20060182677A1

    公开(公告)日:2006-08-17

    申请号:US10521642

    申请日:2003-07-08

    IPC分类号: C01F17/00

    摘要: Disclosed is a process for preparing fine metal oxide particles, comprising the following steps of reacting a reactant mixture comprising i) water, ii) at least one water-soluble metal nitrate and iii) ammonia or ammonium salt at 250-700° C. under 180-550 bar for 0.01 sec to 10 min in a reaction zone to synthesize the metal oxide particles, the metal nitrate being contained at an amount of 0.01-20 wt % in the reactant mixture; and separating and recovering the metal oxide particles from the resulting reaction products. According to the present invention, nano-sized metal oxide particles are synthesized, while the harmful by-products generated concurrently therewith are effectively decomposed in the same reactor.

    摘要翻译: 公开了一种制备金属氧化物微粒的方法,包括以下步骤:使反应物混合物反应,所述反应物混合物包含i)水,ii)至少一种水溶性金属硝酸盐和iii)氨或铵盐,在250-700℃下 180-550巴在反应区中0.01秒至10分钟以合成金属氧化物颗粒,在反应混合物中含有0.01-20重量%的金属硝酸盐; 并从所得反应产物中分离和回收金属氧化物颗粒。 根据本发明,合成纳米尺寸金属氧化物颗粒,同时产生的有害副产物在同一反应器中有效分解。