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Title:
二酸化セリウムナノ粒子を製造する方法
Document Type and Number:
Japanese Patent JP2010502559
Kind Code:
A
Abstract:
A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

Inventors:
Di Francesco Albert Gary
Halestone Richard K.
Langner Andreas
Reed Kennis J.
Application Number:
JP2009527516A
Publication Date:
January 28, 2010
Filing Date:
September 04, 2007
Export Citation:
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Assignee:
CERION TECHNOLOGY, INC.
International Classes:
C01F17/00; B01F23/00; C09K23/00
Domestic Patent References:
JPS591439A1984-01-06
JPS5945925A1984-03-15
JPH08509002A1996-09-24
JPH11501609A1999-02-09
JP2001524918A2001-12-04
JP2003520748A2003-07-08
JP2004507343A2004-03-11
JP2005508442A2005-03-31
JP2006040556A2006-02-09
JP2006506524A2006-02-23
JP2007051057A2007-03-01
JP2005139029A2005-06-02
JPH05155616A1993-06-22
JP2001507739A2001-06-12
JP2007512412A2007-05-17
JP2005139029A2005-06-02
JPH05155616A1993-06-22
JPS591439A1984-01-06
JPS5945925A1984-03-15
JPH08509002A1996-09-24
JPH11501609A1999-02-09
JP2001524918A2001-12-04
JP2003520748A2003-07-08
JP2004507343A2004-03-11
JP2005508442A2005-03-31
JP2006040556A2006-02-09
JP2006506524A2006-02-23
JP2007051057A2007-03-01
JP2001507739A2001-06-12
JP2007512412A2007-05-17
Foreign References:
US1592713A1926-07-13
US20030215378A12003-11-20
US20050152832A12005-07-14
GB360171B
WO2002090260A12002-11-14
US1592713A1926-07-13
US20030215378A12003-11-20
US20050152832A12005-07-14
GB360171B
WO2002090260A12002-11-14
Attorney, Agent or Firm:
Kenichi Morita
Kenjiro Yamaguchi