Method and apparatus for producing metal oxide particles
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United States of America Patent
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May 31, 2016
Grant Date -
Dec 27, 2012
app pub date -
Mar 7, 2011
filing date -
Mar 8, 2010
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Abstract
There is provided a method and an apparatus for producing metal oxide particles, which produce metal oxide particles having a high photocatalytic activity with high yield. The method for producing metal oxide particles of the invention is characterized by including combining, in a reaction tube, a preheated metal chloride-containing gas with a preheated first gas which does not contain the metal chloride at a first junction to obtain a first combined gas, and combining the first combined gas with a preheated second gas which does not contain the metal chloride, at a second junction which is further downstream of the first junction, to obtain a second combined gas, wherein at least one of the metal chloride-containing gas and the first gas contains oxygen, and wherein the preheated metal chloride-containing gas is further heated in a region between the first junction and the second junction (referred to as first reaction zone), by combining the first gas with the metal chloride-containing gas at the first junction while setting the preheat temperature of the first gas at a temperature equal to or higher than the preheat temperature of the metal chloride-containing gas, and the first combined gas is further heated in a region downstream of the second junction by combining the second gas with the first combined gas at the second junction while setting the preheat temperature of the second gas at a temperature equal to or higher than the temperature of the first combined gas.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
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- 2 Other
Patent Owner(s)
- NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY;SHOWA DENKO K.K.
International Classification(s)
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kuroda, Yasushi | Toyama, JP | 31 | 211 |
Ohtani, Bunsho | Sapporo, JP | 10 | 41 |
Sugishita, Noriyuki | Toyama, JP | 4 | 3 |
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