发明名称 |
PROCESS FOR PREPARING FINE METAL OXIDE PARTICLES |
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. |
申请公布号 |
EP1539639(A4) |
申请公布日期 |
2009.09.23 |
申请号 |
EP20030764228 |
申请日期 |
2003.07.08 |
申请人 |
HANWHA CHEMICAL CORPORATION |
发明人 |
MYEONG, WAN-JAE;BAIK, JIN-SOO;PARK, SE-WOONG;CHUNG, CHANG-MO;SONG, KYU-HO |
分类号 |
C01G49/00;B01J3/00;B01J19/00;B82B3/00;C01B13/34;C01B13/36;C01F17/00;C01G1/02;C01G9/02;C01G51/00;C01G51/04 |
主分类号 |
C01G49/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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