금속산화물 초미립자의 제조방법
    4.
    发明授权
    금속산화물 초미립자의 제조방법 有权
    금속산화물초미립자의제조방법

    公开(公告)号:KR100460102B1

    公开(公告)日:2004-12-03

    申请号:KR1020020041376

    申请日:2002-07-15

    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: 本发明公开了一种制备金属氧化物细粒的方法,包括以下步骤:使包含i)水,ii)至少一种水溶性金属硝酸盐和iii)氨或铵盐的反应混合物在250-700℃, 在180-550巴下在反应区内反应0.01秒至10分钟以合成金属氧化物颗粒,金属硝酸盐在反应物混合物中的含量为0.01-20重量% 并从所得反应产物中分离并回收金属氧化物颗粒。 根据本发明,合成纳米尺寸的金属氧化物颗粒,同时产生的有害副产物在同一反应器中被有效分解。