Method and apparatus for producing metal oxide particles

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United States of America Patent

PATENT NO 8679449
APP PUB NO 20100098620A1
SERIAL NO

12645058

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Abstract

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Provided is a method for producing decahedral titanium oxide particles, wherein the decahedral titanium oxide particles are produced by allowing a reaction gas containing titanium tetrachloride to flow into a reaction pipe having a partial double-pipe structure in which a hollow internal cylinder is inserted into an upstream portion of a hollow external cylinder, the method comprising: performing a preheating on the reaction gas containing titanium tetrachloride and a barrier gas not containing metal chlorides in a region on the upstream side of a downstream end of the hollow internal cylinder, while allowing the reaction gas to flow into the hollow internal cylinder and the barrier gas to flow between the hollow internal cylinder and the hollow external cylinder; and performing a main heating on the reaction gas in a downstream region apart from the downstream end of the hollow internal cylinder to thermally decompose the titanium tetrachloride.

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Patent Owner(s)

  • NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY;SHOWA DENKO K.K.

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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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