WO2009071863A3 - Nanometric powder - Google Patents

Nanometric powder Download PDF

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Publication number
WO2009071863A3
WO2009071863A3 PCT/FR2008/052163 FR2008052163W WO2009071863A3 WO 2009071863 A3 WO2009071863 A3 WO 2009071863A3 FR 2008052163 W FR2008052163 W FR 2008052163W WO 2009071863 A3 WO2009071863 A3 WO 2009071863A3
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WO
WIPO (PCT)
Prior art keywords
mother liquor
powder
oxide
preparation
less
Prior art date
Application number
PCT/FR2008/052163
Other languages
French (fr)
Other versions
WO2009071863A2 (en
Inventor
Nabil Nahas
Frédéric WISS
Pavel Afanasiev
Original Assignee
Saint-Gobain Centre De Recherches Et D'etudes Europeen
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
Priority claimed from FR0759486A external-priority patent/FR2924360A1/en
Application filed by Saint-Gobain Centre De Recherches Et D'etudes Europeen filed Critical Saint-Gobain Centre De Recherches Et D'etudes Europeen
Publication of WO2009071863A2 publication Critical patent/WO2009071863A2/en
Publication of WO2009071863A3 publication Critical patent/WO2009071863A3/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • B01J35/40—
    • B01J35/50—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/06—Washing
    • 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
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G27/00—Compounds of hafnium
    • C01G27/02—Oxides
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62802—Powder coating materials
    • C04B35/62805—Oxide ceramics
    • C04B35/62813—Alumina or aluminates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/10—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J33/00—Protection of catalysts, e.g. by coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/12—Oxidising
    • B01J37/14—Oxidising with gases containing free oxygen
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
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    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
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    • C01P2004/13—Nanotubes
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    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C01P2004/22—Particle morphology extending in two dimensions, e.g. plate-like with a polygonal circumferential shape
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    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
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    • C04B2235/76—Crystal structural characteristics, e.g. symmetry

Abstract

The invention relates to a method for the synthesis of a powder comprising primary particles having a maximum size of less than 250 nm, said method comprising the following consecutive steps: A) preparation of a mother liquor containing: an oxide having a monoclinic structure selected from HfO2, ZrO2, Eu2O3, Sm2Os or a precursor of said oxide having a monoclinic structure, and a modifying agent soluble in an aqueous medium selected from the group of oxoanions, anions of the elements of column 17 of the periodic table, hydroxide OH if the pH of the mother liquor is a base, and the mixtures thereof, the mother liquor having a pH of less than 4 or higher than 10, and B) preparation of said powder, including a hydrothermal treatment operation based on the mother liquor.
PCT/FR2008/052163 2007-11-30 2008-11-28 Nanometric powder WO2009071863A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
FR0759485 2007-11-30
FR0759485 2007-11-30
FR0759486A FR2924360A1 (en) 2007-11-30 2007-11-30 Preparing powder useful e.g. to catalyze chemical reaction e.g. hydrogenation reactions and as mineral filler and abrasive article, comprises selecting and determining crystal plane, and hydrothermal synthesis of primary particles
FR0759486 2007-11-30
FR0850801 2008-02-08
FR0850796 2008-02-08
FR0850796 2008-02-08
FR0850801 2008-02-08

Publications (2)

Publication Number Publication Date
WO2009071863A2 WO2009071863A2 (en) 2009-06-11
WO2009071863A3 true WO2009071863A3 (en) 2010-03-04

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PCT/FR2008/052163 WO2009071863A2 (en) 2007-11-30 2008-11-28 Nanometric powder

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Publication number Priority date Publication date Assignee Title
WO2011004912A1 (en) * 2009-07-09 2011-01-13 トヨタ自動車株式会社 Exhaust gas purifying catalyst and method for producing same
CN107847913A (en) 2015-07-22 2018-03-27 巴斯夫公司 The high geometrical surface catalyst prepared is produced for vinyl acetate monomer

Citations (5)

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Publication number Priority date Publication date Assignee Title
US2984628A (en) * 1956-11-29 1961-05-16 Du Pont Concentrated zirconia and hafnia aquasols and their preparation
DE10035330A1 (en) * 2000-07-20 2002-02-07 Daimler Chrysler Ag Catalyst used for decomposing nitrogen oxide waste gas from vehicles and power stations comprises absorber body with channels and electrolyte
WO2004065002A1 (en) * 2003-01-21 2004-08-05 Shell Internationale Research Maatschappij B.V. Zirconia extrudates
US20040244675A1 (en) * 2001-08-09 2004-12-09 Mikio Kishimoto Non-magnetic particles having a plate shape and method for production thereof, abrasive material, polishing article and abrasive fluid comprising such particles
EP1842591A1 (en) * 2006-03-24 2007-10-10 Ngk Insulators, Ltd. A catalytic converter and a method for producing the catalytic converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984628A (en) * 1956-11-29 1961-05-16 Du Pont Concentrated zirconia and hafnia aquasols and their preparation
DE10035330A1 (en) * 2000-07-20 2002-02-07 Daimler Chrysler Ag Catalyst used for decomposing nitrogen oxide waste gas from vehicles and power stations comprises absorber body with channels and electrolyte
US20040244675A1 (en) * 2001-08-09 2004-12-09 Mikio Kishimoto Non-magnetic particles having a plate shape and method for production thereof, abrasive material, polishing article and abrasive fluid comprising such particles
WO2004065002A1 (en) * 2003-01-21 2004-08-05 Shell Internationale Research Maatschappij B.V. Zirconia extrudates
EP1842591A1 (en) * 2006-03-24 2007-10-10 Ngk Insulators, Ltd. A catalytic converter and a method for producing the catalytic converter

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
BLANC P ET AL: "Hafnia Colloidal Solution from Hydrothermal Synthesis and Membrane Preparation", JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, ELSEVIER SCIENCE PUBLISHERS, BARKING, ESSEX, GB, vol. 17, no. 2, 1 January 1997 (1997-01-01), pages 397 - 401, XP004014807, ISSN: 0955-2219 *
KOLEN'KO YU V ET AL: "Synthesis of ZrO2 and TiO2 nanocrystalline powders by hydrothermal process", MATERIALS SCIENCE & ENGINEERING C, BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS ELSEVIER NETHERLANDS, vol. C23, no. 6-8, 15 December 2003 (2003-12-15), pages 1033 - 1038, XP002487111, ISSN: 0928-4931 *
NOH H-J ET AL: "Synthesis and crystallization of anisotropic shaped ZrO2 nanocrystalline powders by hydrothermal process", MATERIALS LETTERS, NORTH HOLLAND PUBLISHING COMPANY. AMSTERDAM, NL, vol. 57, no. 16-17, 1 May 2003 (2003-05-01), pages 2425 - 2431, XP004418449, ISSN: 0167-577X *
TAHIR ET AL: "Facile synthesis and characterization of monocrystalline cubic ZrO2 nanoparticles", SOLID STATE SCIENCES, ELSEVIER, PARIS, FR, vol. 9, no. 12, 7 August 2007 (2007-08-07), pages 1105 - 1109, XP022379405, ISSN: 1293-2558 *
YUE YINGHONG ET AL: "Nanosized titania and zirconia as catalysts for hydrolysis of carbon disulfide", APPL. CATAL. B ENVIRON.; APPLIED CATALYSIS B: ENVIRONMENTAL NOV 28 2003, vol. 46, no. 3, 28 November 2003 (2003-11-28), pages 561 - 572, XP002487112 *

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WO2009071863A2 (en) 2009-06-11

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