ATE519710T1 - METHOD FOR PRODUCING CUBIC BORON NITRIDE - Google Patents

METHOD FOR PRODUCING CUBIC BORON NITRIDE

Info

Publication number
ATE519710T1
ATE519710T1 AT03712663T AT03712663T ATE519710T1 AT E519710 T1 ATE519710 T1 AT E519710T1 AT 03712663 T AT03712663 T AT 03712663T AT 03712663 T AT03712663 T AT 03712663T AT E519710 T1 ATE519710 T1 AT E519710T1
Authority
AT
Austria
Prior art keywords
oil
boron nitride
cbn
synthetic lump
synthetic
Prior art date
Application number
AT03712663T
Other languages
German (de)
Inventor
Hirohiko Ohtsubo
Original Assignee
Showa Denko Kk
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 Showa Denko Kk filed Critical Showa Denko Kk
Priority claimed from PCT/JP2003/002364 external-priority patent/WO2003072495A1/en
Application granted granted Critical
Publication of ATE519710T1 publication Critical patent/ATE519710T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Lubricants (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the danger in work and labor, such as neutralization work, by decreasing the amount of use of strong alkali chemicals in separating and recovering cBN from a synthetic lump containing cBN manufactured by a high-pressure process. <P>SOLUTION: The synthetic lump is crushed to ≤20 mm in mean diameter before a process step of recovering the cBN by subjecting the synthetic lump by the high-pressure process to dissolution treatment using an alkaline solution. The ratio of the low-pressure phase boron nitride in the synthetic lump to the cubic boron nitride is reduced to ≤50 mass% by using flotation. At this time, any one or more kinds selected from lamp oil, kerosene, tar creosote, and sodium oleate, and any one or more kinds selected from pine oil, camphor, MIBC (methyl isobutyl carbinol), coniferous tree oil, cresylic acid, creosote oil, eucalyptus oil, and flutole oil are used as the flotation agent. <P>COPYRIGHT: (C)2003,JPO
AT03712663T 2002-02-28 2003-02-28 METHOD FOR PRODUCING CUBIC BORON NITRIDE ATE519710T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002054374A JP4145533B2 (en) 2002-02-28 2002-02-28 Method for producing cubic boron nitride
US36132602P 2002-03-05 2002-03-05
PCT/JP2003/002364 WO2003072495A1 (en) 2002-02-28 2003-02-28 Method for producing cubic boron nitride

Publications (1)

Publication Number Publication Date
ATE519710T1 true ATE519710T1 (en) 2011-08-15

Family

ID=28665544

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03712663T ATE519710T1 (en) 2002-02-28 2003-02-28 METHOD FOR PRODUCING CUBIC BORON NITRIDE

Country Status (3)

Country Link
JP (1) JP4145533B2 (en)
KR (1) KR100625733B1 (en)
AT (1) ATE519710T1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4665548B2 (en) * 2005-02-25 2011-04-06 パナソニック株式会社 Driving method of plasma display panel
JP4307451B2 (en) * 2006-01-18 2009-08-05 電気化学工業株式会社 Boron nitride powder, production method and use thereof
CA2736753C (en) * 2008-09-16 2015-09-01 Diamond Innovations, Inc. Abrasive grains having unique features
JP5702567B2 (en) * 2010-09-14 2015-04-15 Ｄｏｗａエコシステム株式会社 Method and apparatus for purifying contaminated soil
JP5736828B2 (en) * 2011-02-21 2015-06-17 Ｊｆｅスチール株式会社 Method for separating and recovering SiC from used refractories
KR101200485B1 (en) 2011-05-12 2012-11-12 전천규 Floatation equipment and floatation method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661521A (en) * 1970-02-13 1972-05-09 Gen Electric Refining of cubic boron nitride
JPS5939362B2 (en) * 1981-11-12 1984-09-22 昭和電工株式会社 Boron nitride compound and its manufacturing method
JPH02164433A (en) * 1988-12-19 1990-06-25 Denki Kagaku Kogyo Kk Manufacture of polycrystalline cubic boron nitride particles
JP3400842B2 (en) * 1993-07-09 2003-04-28 昭和電工株式会社 Method for producing cubic boron nitride
JP3565615B2 (en) * 1995-06-12 2004-09-15 昭和電工株式会社 Method for producing cubic boron nitride
JPH09271691A (en) * 1996-04-05 1997-10-21 Denki Kagaku Kogyo Kk Heavy liquid composition and method for electing particle
JPH09272857A (en) * 1996-04-05 1997-10-21 Denki Kagaku Kogyo Kk Abrasive grain of polycrystalline cubic boron nitride
JP2003064350A (en) * 2001-05-21 2003-03-05 Showa Denko Kk Method for producing cubic boron nitride abrasive grain

Also Published As

Publication number Publication date
KR100625733B1 (en) 2006-09-20
KR20040093723A (en) 2004-11-08
JP4145533B2 (en) 2008-09-03
JP2003251222A (en) 2003-09-09

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