BR112022015127A2 - Método para separação de impurezas de carbeto de silício, pó de carbeto de silício tratado por temperatura e purificado - Google Patents

Método para separação de impurezas de carbeto de silício, pó de carbeto de silício tratado por temperatura e purificado

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Publication number
BR112022015127A2
BR112022015127A2 BR112022015127A BR112022015127A BR112022015127A2 BR 112022015127 A2 BR112022015127 A2 BR 112022015127A2 BR 112022015127 A BR112022015127 A BR 112022015127A BR 112022015127 A BR112022015127 A BR 112022015127A BR 112022015127 A2 BR112022015127 A2 BR 112022015127A2
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BR
Brazil
Prior art keywords
silicon carbide
impurities
sic
purified
treated
Prior art date
Application number
BR112022015127A
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English (en)
Other versions
BR112022015127A8 (pt
Inventor
Adler Jörg
Heymer Heike
Hausmann Matthias
Klietz Wenzel
Räthel Jan
Garbes Josef
Original Assignee
Fraunhofer Ges Forschung
Esk Sic Gmbh
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.)
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Application filed by Fraunhofer Ges Forschung, Esk Sic Gmbh filed Critical Fraunhofer Ges Forschung
Publication of BR112022015127A2 publication Critical patent/BR112022015127A2/pt
Publication of BR112022015127A8 publication Critical patent/BR112022015127A8/pt

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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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/956—Silicon carbide
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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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
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    • 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
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    • C04B35/62892—Coating the powders or the macroscopic reinforcing agents with a coating layer consisting of particles
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Silicon Compounds (AREA)

Abstract

MÉTODO PARA SEPARAÇÃO DE IMPUREZAS DE CARBETO DE SILÍCIO, PÓ DE CARBETO DE SILÍCIO TRATADO POR TEMPERATURA E PURIFICADO. A presente invenção invenção trata de um método para separar impurezas do carbeto de silício, que pode ser usado em pós de SiC de pastas de moagem e pó de carbeto de silício tratado por temperatura e purificado. É um objetivo da presente invenção fornecer um método para separar substancialmente completamente várias impurezas com um processo simples e econômico. O problema é resolvido por um método no qual os produtos residuais de SiC em pó contendo pelo menos 50% em massa de SiC e um tamanho de grão médio d50 entre 0,5 e 1000 µm foram submetidos a tratamento por temperatura e resfriados, tratados mecanicamente e separados fisicamente, e subsequentemente o pó de SiC fisicamente separado é dividido em duas frações, das quais a massa de impurezas em uma fração é pelo menos duas vezes maior que na outra fração.
BR112022015127A 2020-01-31 2021-01-29 Método para separação de impurezas de carbeto de silício, pó de carbeto de silício tratado por temperatura e purificado BR112022015127A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020102512.2A DE102020102512A1 (de) 2020-01-31 2020-01-31 Verfahren zum Abtrennen von Verunreinigungen von Siliciumcarbid und gereinigtes Siliciumcarbid-Pulver
PCT/EP2021/052173 WO2021152134A1 (de) 2020-01-31 2021-01-29 Verfahren zum abtrennen von verunreinigungen von siliciumcarbid und temperaturbehandeltes und gereinigtes siliciumcarbid-pulver

Publications (2)

Publication Number Publication Date
BR112022015127A2 true BR112022015127A2 (pt) 2022-09-27
BR112022015127A8 BR112022015127A8 (pt) 2023-02-07

Family

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BR112022015127A BR112022015127A8 (pt) 2020-01-31 2021-01-29 Método para separação de impurezas de carbeto de silício, pó de carbeto de silício tratado por temperatura e purificado

Country Status (8)

Country Link
US (1) US20230073241A1 (pt)
EP (1) EP4097048A1 (pt)
JP (1) JP2023512094A (pt)
CN (1) CN115087620B (pt)
BR (1) BR112022015127A8 (pt)
CA (1) CA3168890A1 (pt)
DE (1) DE102020102512A1 (pt)
WO (1) WO2021152134A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113860310B (zh) * 2021-09-27 2022-07-26 连云港市沃鑫高新材料有限公司 一种超细碳化硅尾料中纳米级碳化硅的提取方法
CN113896200B (zh) * 2021-11-26 2022-11-22 连云港市沃鑫高新材料有限公司 一种碳化硅微粉的生产工艺
DE102022111456A1 (de) 2022-05-09 2023-11-09 ESK-SIC GmbH Siliciumcarbid-Kies und Verfahren zu seiner Herstellung

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE85197C (pt)
DE76629C (de) E. G. ACHESON in Monongahela City, V. St. A Verfahren zur Darstellung einer krystallinischen Kohlenstoffsiliciumverbindung
JPS589807A (ja) * 1981-07-10 1983-01-20 Showa Denko Kk 高純度ＳｉＣの製造法
DE3508171A1 (de) * 1985-03-07 1986-09-11 Elektroschmelzwerk Kempten GmbH, 8000 München Verfahren zur herstellung von sinteraktiven siliciumcarbid und/oder borcarbidpulvern
JPS6227316A (ja) * 1985-07-26 1987-02-05 Ibiden Co Ltd 高純度炭化珪素微粉末の製造方法
US4700898A (en) 1986-05-08 1987-10-20 Remi Tremblay Concentration of silicon carbide
JPH062568B2 (ja) * 1987-01-07 1994-01-12 東海高熱工業株式会社 高純度炭化けい素粉末の製造方法
US5340417A (en) * 1989-01-11 1994-08-23 The Dow Chemical Company Process for preparing silicon carbide by carbothermal reduction
EP0486938B1 (en) 1990-11-20 1999-05-19 Asahi Glass Company Ltd. Heat treating apparatuses for semiconductors and high purity silicon carbide parts for the apparatuses and a method of making thereof
US5863325A (en) * 1995-05-31 1999-01-26 Bridgestone Corporation Process for producing high purity silicon carbide powder for preparation of a silicon carbide single crystal and single crystal
JP4437847B2 (ja) * 1998-12-08 2010-03-24 株式会社ブリヂストン 炭化ケイ素焼結体の製造方法
JP2000351614A (ja) * 1999-06-10 2000-12-19 Bridgestone Corp 炭化ケイ素粉体、及びその製造方法
NO325179B1 (no) 2003-04-23 2008-02-11 Metallkraft As Fremgangsmate ved rensing av silisiumkarbid-partikler
US8470279B2 (en) * 2004-04-13 2013-06-25 Si Options, Llc High purity silicon-containing products and method of manufacture
JP2009269797A (ja) * 2008-05-08 2009-11-19 Sumitomo Osaka Cement Co Ltd 炭化ケイ素粉末の製造方法
KR20090132348A (ko) * 2008-06-20 2009-12-30 한국기계연구원 자성을 보유하는 사이알론 및 그 제조방법
JP2010173916A (ja) * 2009-01-30 2010-08-12 Mitsubishi Materials Corp シリコン屑から炭化珪素を製造する方法
JP5466455B2 (ja) * 2009-08-13 2014-04-09 信越化学工業株式会社 炭化珪素の製造方法
JP5630333B2 (ja) * 2011-03-08 2014-11-26 信越化学工業株式会社 易焼結性炭化ケイ素粉末及び炭化ケイ素セラミックス焼結体
WO2013055016A1 (ko) * 2011-10-14 2013-04-18 한국세라믹기술원 탄화규소 분말의 제조방법 및 이에 의해서 제조된 탄화규소 분말
JP2014047105A (ja) * 2012-08-31 2014-03-17 Shinano Denki Seiren Kk 炭化珪素粉の製造方法
JP2014129223A (ja) * 2012-11-30 2014-07-10 Kyocera Corp セラミック焼結体およびこれを備える耐磨耗性部材
DE102013218450B3 (de) * 2013-09-14 2014-06-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Recycling von pulverförmigen Siliciumcarbid-Abfallprodukten
CN103693646B (zh) * 2013-12-23 2015-03-25 湖南大学 一种使碳化硅微粉球形化和纯化的方法
CN103922343B (zh) * 2014-03-19 2016-03-09 河南易成新能源股份有限公司 碳化硅切割刃料除铁提纯方法
CN107321496A (zh) * 2017-07-25 2017-11-07 安徽正丰再生资源有限公司 一种重力式碳化硅微粉提纯装置
JP6933187B2 (ja) * 2018-05-01 2021-09-08 信越半導体株式会社 半導体シリコンウェーハの金属不純物除去方法

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Publication number Publication date
CA3168890A1 (en) 2021-08-05
EP4097048A1 (de) 2022-12-07
JP2023512094A (ja) 2023-03-23
BR112022015127A8 (pt) 2023-02-07
CN115087620A (zh) 2022-09-20
WO2021152134A1 (de) 2021-08-05
US20230073241A1 (en) 2023-03-09
DE102020102512A1 (de) 2021-08-05
CN115087620B (zh) 2024-05-07

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