WO2008002323A3 - Production of cerium containing metal oxide grains - Google Patents

Production of cerium containing metal oxide grains Download PDF

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Publication number
WO2008002323A3
WO2008002323A3 PCT/US2006/048143 US2006048143W WO2008002323A3 WO 2008002323 A3 WO2008002323 A3 WO 2008002323A3 US 2006048143 W US2006048143 W US 2006048143W WO 2008002323 A3 WO2008002323 A3 WO 2008002323A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal oxide
cerium
oxide particles
production
containing metal
Prior art date
Application number
PCT/US2006/048143
Other languages
French (fr)
Other versions
WO2008002323A2 (en
Inventor
David Wallace Sandford
Thomas Nelson Blanton
Original Assignee
Eastman Kodak Co
David Wallace Sandford
Thomas Nelson Blanton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co, David Wallace Sandford, Thomas Nelson Blanton filed Critical Eastman Kodak Co
Publication of WO2008002323A2 publication Critical patent/WO2008002323A2/en
Publication of WO2008002323A3 publication Critical patent/WO2008002323A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/235—Cerium oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/241—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion containing two or more rare earth metals, e.g. NdPrO3 or LaNdPrO3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Composite Materials (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Physics & Mathematics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

An aqueous precipitation process for the preparation of metal oxide particles, comprising adding a cerium +3 nitrate salt solution and a base together under turbulent mixing conditions in a precipitation reactor, where cerium +3 ions are oxidized to cerium +4 and precipitated metal oxide particles are directly obtained without need for a calcination step, wherein the improvement comprises adding acetic acid to the precipitation in an amount of from 1 to 40 molar percent, relative to the molar amount of cerium, and obtaining stable, substantially non-agglomerated nanometer size dispersed metal oxide particles.
PCT/US2006/048143 2005-12-23 2006-12-18 Production of cerium containing metal oxide grains WO2008002323A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31810205A 2005-12-23 2005-12-23
US11/318,102 2005-12-23

Publications (2)

Publication Number Publication Date
WO2008002323A2 WO2008002323A2 (en) 2008-01-03
WO2008002323A3 true WO2008002323A3 (en) 2008-04-17

Family

ID=38846140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/048143 WO2008002323A2 (en) 2005-12-23 2006-12-18 Production of cerium containing metal oxide grains

Country Status (1)

Country Link
WO (1) WO2008002323A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10435639B2 (en) 2006-09-05 2019-10-08 Cerion, Llc Fuel additive containing lattice engineered cerium dioxide nanoparticles
US8883865B2 (en) 2006-09-05 2014-11-11 Cerion Technology, Inc. Cerium-containing nanoparticles
EP2066767B1 (en) 2006-09-05 2015-10-21 Cerion LLC Cerium dioxide nanoparticle-containing fuel additive
US8679344B2 (en) 2008-12-17 2014-03-25 Cerion Technology, Inc. Process for solvent shifting a nanoparticle dispersion
US9308265B2 (en) 2012-04-17 2016-04-12 Cerion Llc Nanoparticles of cerium and amino acids
US9446070B2 (en) 2012-06-13 2016-09-20 Cerion, Llc Nanoceria with citric acid additive
MX2014015251A (en) 2012-06-13 2015-04-13 Cerion Entpr Llc Nanoceria for the treatment of oxidative stress.
US9623110B2 (en) 2013-08-09 2017-04-18 Cerion, Llc Nanoparticles of a metal and a nucleobase
WO2015058037A1 (en) * 2013-10-17 2015-04-23 Cerion, Llc Malic acid stabilized nanoceria particles
CN109133140A (en) * 2018-08-27 2019-01-04 江西师范大学 A method of preparing cerium oxide nanoparticles
CN114653356B (en) * 2022-02-07 2023-10-24 江汉大学 Preparation method of lanthanum-doped cerium oxide catalyst material and formaldehyde-removing compound
CN115448354B (en) * 2022-09-16 2023-10-31 包头稀土研究院 Cerium oxide particles and method for preparing same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859432A (en) * 1986-12-19 1989-08-22 Rhone-Poulenc Chimie Novel ceric oxide particulates and process of making
US5308548A (en) * 1985-06-20 1994-05-03 Rhone-Poulenc Specialities Chimiques Preparing a dispersible, sol-forming cerium (IV) composition
US6133194A (en) * 1997-04-21 2000-10-17 Rhodia Rare Earths Inc. Cerium oxides, zirconium oxides, Ce/Zr mixed oxides and Ce/Zr solid solutions having improved thermal stability and oxygen storage capacity
US20030215378A1 (en) * 2002-05-15 2003-11-20 Xiao-Dong Zhou Method for preparation of nanometer cerium-based oxide particles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308548A (en) * 1985-06-20 1994-05-03 Rhone-Poulenc Specialities Chimiques Preparing a dispersible, sol-forming cerium (IV) composition
US4859432A (en) * 1986-12-19 1989-08-22 Rhone-Poulenc Chimie Novel ceric oxide particulates and process of making
US6133194A (en) * 1997-04-21 2000-10-17 Rhodia Rare Earths Inc. Cerium oxides, zirconium oxides, Ce/Zr mixed oxides and Ce/Zr solid solutions having improved thermal stability and oxygen storage capacity
US20030215378A1 (en) * 2002-05-15 2003-11-20 Xiao-Dong Zhou Method for preparation of nanometer cerium-based oxide particles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. INOUE ET. AL.: "Transparent colloidal solution of 2 nm ceria particles", CHEMICAL COMMUNICATION, 1999, RSC Publishing, pages 957 - 958, XP002468390 *

Also Published As

Publication number Publication date
WO2008002323A2 (en) 2008-01-03

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