WO2008136139A1 - Process for production of spherical metal oxide powder - Google Patents

Process for production of spherical metal oxide powder Download PDF

Info

Publication number
WO2008136139A1
WO2008136139A1 PCT/JP2007/065937 JP2007065937W WO2008136139A1 WO 2008136139 A1 WO2008136139 A1 WO 2008136139A1 JP 2007065937 W JP2007065937 W JP 2007065937W WO 2008136139 A1 WO2008136139 A1 WO 2008136139A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
metal oxide
production
spherical
powders
Prior art date
Application number
PCT/JP2007/065937
Other languages
French (fr)
Japanese (ja)
Inventor
Toshiaki Ishimaru
Wataru Suehiro
Hideaki Hirai
Original Assignee
Denki Kagaku Kogyo Kabushiki Kaisha
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 Denki Kagaku Kogyo Kabushiki Kaisha filed Critical Denki Kagaku Kogyo Kabushiki Kaisha
Publication of WO2008136139A1 publication Critical patent/WO2008136139A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/26—Magnetic separation acting directly on the substance being separated with free falling material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/32—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • 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
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Glanulating (AREA)
  • Silicon Compounds (AREA)

Abstract

A process for the production of spherical metal oxide powder which comprises the step of injecting one or more raw material powders selected from the group consisting of metal powders, metal oxide powders and metal hydroxide powders into flame to form a spherical powder and recovering the spherical powder with a collector, characterized by comprising the step of passing a powder to be treated which contains at least either of the raw material powder and the recovered spherical powder through a foreign matter removal unit to reduce the quantity of foreign matter contained in the powder to be treated to 450 pieces/50g or below.
PCT/JP2007/065937 2007-04-26 2007-08-16 Process for production of spherical metal oxide powder WO2008136139A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-116739 2007-04-26
JP2007116739A JP2010159168A (en) 2007-04-26 2007-04-26 Method for producing spherical metal oxide powder

Publications (1)

Publication Number Publication Date
WO2008136139A1 true WO2008136139A1 (en) 2008-11-13

Family

ID=39943261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/065937 WO2008136139A1 (en) 2007-04-26 2007-08-16 Process for production of spherical metal oxide powder

Country Status (2)

Country Link
JP (1) JP2010159168A (en)
WO (1) WO2008136139A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015086120A (en) * 2013-10-31 2015-05-07 株式会社トクヤマ Spherical silica fine powder and production method thereof
JP2019182694A (en) * 2018-04-05 2019-10-24 三菱ケミカル株式会社 Synthetic silica glass powder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5787591B2 (en) * 2011-04-20 2015-09-30 原子燃料工業株式会社 Foreign matter removing apparatus, foreign matter removing method, uranium oxide pellet and fuel assembly manufacturing method
KR20230150346A (en) 2021-03-31 2023-10-30 덴카 주식회사 Metal oxide powder and method for producing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1147633A (en) * 1997-08-07 1999-02-23 Toshiba Chem Corp Metal removing device
JP2000317342A (en) * 1999-04-28 2000-11-21 Nippon Magnetics Kk Magnetic matter removing apparatus
JP2002179409A (en) * 2000-12-12 2002-06-26 Denki Kagaku Kogyo Kk Method of manufacturing fine spherical inorganic powder
JP2005187302A (en) * 2003-12-26 2005-07-14 Mitsubishi Rayon Co Ltd High purity non-magnetic metal oxide powder and its producing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1147633A (en) * 1997-08-07 1999-02-23 Toshiba Chem Corp Metal removing device
JP2000317342A (en) * 1999-04-28 2000-11-21 Nippon Magnetics Kk Magnetic matter removing apparatus
JP2002179409A (en) * 2000-12-12 2002-06-26 Denki Kagaku Kogyo Kk Method of manufacturing fine spherical inorganic powder
JP2005187302A (en) * 2003-12-26 2005-07-14 Mitsubishi Rayon Co Ltd High purity non-magnetic metal oxide powder and its producing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015086120A (en) * 2013-10-31 2015-05-07 株式会社トクヤマ Spherical silica fine powder and production method thereof
JP2019182694A (en) * 2018-04-05 2019-10-24 三菱ケミカル株式会社 Synthetic silica glass powder

Also Published As

Publication number Publication date
JP2010159168A (en) 2010-07-22

Similar Documents

Publication Publication Date Title
EP2218683A4 (en) Carbon microparticle produced from raw material lignin, and process for production thereof
WO2008126319A1 (en) Process for production of porous silicon carbide sintered compacts
EP1905735A4 (en) Hydrogen-generating material and process for producing hydrogen-generating material
EP2037518A4 (en) Carbon particle having deposited fine particles, process for producing the same, and electrode for fuel cell
MY150080A (en) Guava leaf extract powder and method for production thereof
EP2471750A4 (en) Surface-modified biomass, preparation method thereof, and method for recovering valuable metals using the same
UA105540C2 (en) Powder made of polyoxymethylene for use in laser sintering process, method of its production and molded articles made of such powder
EP1892322A4 (en) Copper/niobium composite piping material produced by copper electroforming, process for producing the same and superconducting acceleration cavity produced from the composite piping material
WO2006059112A3 (en) Improvements in or relating to biodegradable composites
WO2007103083A3 (en) Extraction of lithium from lithium bearing minerals by caustic leaching
WO2008136139A1 (en) Process for production of spherical metal oxide powder
WO2014076530A3 (en) Hard particles for incorporation in sintered alloy and wear-resistant iron-based sintered alloy and production method thereof
WO2011052940A3 (en) Process for preparing clopidogrel hydrogensulfate form i
PL2041045T3 (en) Coating in the form of compressed discrete particles, such as pellets
WO2009135239A8 (en) Leather material
EP2509453A4 (en) Nutritional composition and methods of making and using same
CN102041498A (en) Metal antique bronze color colorant
Schaffer ZincOx Resources eyes plant for EF dust recovery in Turkey
Bonte et al. New coal injection plant for dioxin reduction at the Sidmar sinter plants.
Ma et al. High-performance gelled material from water quenching slag for backfilling.
Ameling et al. Increasing requirements of raw materials and high concentration grade: Prices for ores and coal rise like an explosion
PL380723A1 (en) The manner of production of nanometric powders of indium and tin powders (nanoITO) and nanometric powders produced according to this method
Pan et al. Advanced technology of clean steel production at home andabroad.
Ramana et al. Upwelling and sinking in the Arabian sea along Dakshina Kannada coast
Zhou Purification of InCl 3 solution with high sb content by ethyl ether extraction.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07792570

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 07792570

Country of ref document: EP

Kind code of ref document: A1