JP7724463B2 - ベーマイト構造体及びその製造方法 - Google Patents

ベーマイト構造体及びその製造方法

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Publication number
JP7724463B2
JP7724463B2 JP2023554655A JP2023554655A JP7724463B2 JP 7724463 B2 JP7724463 B2 JP 7724463B2 JP 2023554655 A JP2023554655 A JP 2023554655A JP 2023554655 A JP2023554655 A JP 2023554655A JP 7724463 B2 JP7724463 B2 JP 7724463B2
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Prior art keywords
boehmite
particles
hydraulic alumina
boehmite structure
inorganic oxide
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JP2023554655A
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English (en)
Japanese (ja)
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JPWO2023068202A1 (https=
JPWO2023068202A5 (https=
Inventor
直樹 栗副
亮介 澤
夏希 佐藤
達郎 吉岡
徹 関野
知代 後藤
成訓 趙
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of JPWO2023068202A5 publication Critical patent/JPWO2023068202A5/ja
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    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/021—After-treatment of oxides or hydroxides
    • C01F7/023—Grinding, deagglomeration or disintegration
    • C—CHEMISTRY; METALLURGY
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    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C—CHEMISTRY; METALLURGY
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    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/447—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
    • C01F7/448—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
JP2023554655A 2021-10-19 2022-10-14 ベーマイト構造体及びその製造方法 Active JP7724463B2 (ja)

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JP2021170694 2021-10-19
JP2021170694 2021-10-19
PCT/JP2022/038424 WO2023068202A1 (ja) 2021-10-19 2022-10-14 ベーマイト構造体及びその製造方法

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JPWO2023068202A1 JPWO2023068202A1 (https=) 2023-04-27
JPWO2023068202A5 JPWO2023068202A5 (https=) 2024-06-28
JP7724463B2 true JP7724463B2 (ja) 2025-08-18

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US (1) US20240417330A1 (https=)
EP (1) EP4421051B1 (https=)
JP (1) JP7724463B2 (https=)
CN (1) CN118215645A (https=)
WO (1) WO2023068202A1 (https=)

Citations (4)

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JP2019199515A (ja) 2018-05-15 2019-11-21 トヨタ自動車株式会社 コート材
WO2020235277A1 (ja) 2019-05-20 2020-11-26 パナソニックＩｐマネジメント株式会社 ベーマイト構造体及びその製造方法
JP2021072188A (ja) 2019-10-30 2021-05-06 パナソニックＩｐマネジメント株式会社 複合部材
JP2021075416A (ja) 2019-11-07 2021-05-20 パナソニックＩｐマネジメント株式会社 複合部材

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145618A (ja) * 1982-02-23 1983-08-30 Mitsubishi Chem Ind Ltd ベ−マイト成形体
JPS6046922A (ja) * 1983-08-23 1985-03-14 Mitsubishi Chem Ind Ltd ベ−マイトの製造方法
ATE378106T1 (de) * 1999-12-21 2007-11-15 Grace W R & Co Aus aluminiumtrihydrat hergestellte aluminiumoxid-verbundstoffe mit hohem porenvolumen und hoher spezifischer oberfläche, deren herstellung und verwendung
JP4236146B2 (ja) 2002-02-19 2009-03-11 河合石灰工業株式会社 多孔質ベーマイト成形体及び多孔質アルミナ成形体
WO2015180005A1 (en) * 2014-05-25 2015-12-03 Shengguo Wang Method and apparatus for producing alumina monohydrate and sol gel abrasive grain
KR101725799B1 (ko) * 2016-11-04 2017-04-11 오상자이엘 주식회사 고결정 감마-보헤마이트 복합 입자 및 이의 제조 방법
JP2021170694A (ja) 2018-07-02 2021-10-28 ソニーグループ株式会社 情報処理装置、通信方法、プログラム、及び、移動体
CN113692393B (zh) * 2019-03-26 2024-06-25 松下知识产权经营株式会社 复合部件以及使用了该复合部件的建筑部件及装饰部件

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019199515A (ja) 2018-05-15 2019-11-21 トヨタ自動車株式会社 コート材
WO2020235277A1 (ja) 2019-05-20 2020-11-26 パナソニックＩｐマネジメント株式会社 ベーマイト構造体及びその製造方法
JP2021072188A (ja) 2019-10-30 2021-05-06 パナソニックＩｐマネジメント株式会社 複合部材
JP2021075416A (ja) 2019-11-07 2021-05-20 パナソニックＩｐマネジメント株式会社 複合部材

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