CA2315019A1 - Method and installation for refining silicon - Google Patents

Method and installation for refining silicon Download PDF

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Publication number
CA2315019A1
CA2315019A1 CA002315019A CA2315019A CA2315019A1 CA 2315019 A1 CA2315019 A1 CA 2315019A1 CA 002315019 A CA002315019 A CA 002315019A CA 2315019 A CA2315019 A CA 2315019A CA 2315019 A1 CA2315019 A1 CA 2315019A1
Authority
CA
Canada
Prior art keywords
crucible
silicon
induction
plasma
towards
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002315019A
Other languages
French (fr)
Other versions
CA2315019C (en
Inventor
Marcel Garnier
Christian Trassy
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Centre National de la Recherche Scientifique CNRS
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Individual
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 Individual filed Critical Individual
Publication of CA2315019A1 publication Critical patent/CA2315019A1/en
Application granted granted Critical
Publication of CA2315019C publication Critical patent/CA2315019C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C01B33/02—Silicon
    • C01B33/037—Purification

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention concerns a method for refining silicon, consisting in filling a cold induction crucible (1) with solid silicon; liquefying the crucible content; carrying out, using the induction crucible, a turbulent mixing of the silicon bath (b) by bringing up the liquid from the bottom of the crucible towards the free surface along the crucible central axis;
directing a plasma (f) generated by an induction plasma torch (2) towards the bath surface for a time interval enabling the elimination of impurities for which the plasma reactive gas (g r) is adapted.
CA002315019A 1997-12-19 1998-12-17 Method and installation for refining silicon Expired - Lifetime CA2315019C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR97/16544 1997-12-19
FR9716544A FR2772741B1 (en) 1997-12-19 1997-12-19 PROCESS AND INSTALLATION FOR REFINING SILICON
PCT/FR1998/002765 WO1999032402A1 (en) 1997-12-19 1998-12-17 Method and installation for refining silicon

Publications (2)

Publication Number Publication Date
CA2315019A1 true CA2315019A1 (en) 1999-07-01
CA2315019C CA2315019C (en) 2008-02-26

Family

ID=9515165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002315019A Expired - Lifetime CA2315019C (en) 1997-12-19 1998-12-17 Method and installation for refining silicon

Country Status (8)

Country Link
EP (1) EP1042224B1 (en)
JP (1) JP4433610B2 (en)
AU (1) AU744857B2 (en)
CA (1) CA2315019C (en)
DE (1) DE69802307T2 (en)
FR (1) FR2772741B1 (en)
WO (1) WO1999032402A1 (en)
ZA (1) ZA9811644B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8367008B2 (en) 2008-03-14 2013-02-05 Christian Claude Cyprien Trassy Method for purifying silicon for photovoltaic applications

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2827592B1 (en) 2001-07-23 2003-08-22 Invensil HIGH PURITY METALLURGICAL SILICON AND PROCESS FOR PRODUCING THE SAME
FR2831881B1 (en) * 2001-11-02 2004-01-16 Hubert Lauvray PROCESS FOR THE PURIFICATION OF METALLURGICAL SILICON BY INDUCTIVE PLASMA COUPLED TO DIRECTIONAL SOLIDIFICATION AND DIRECT OBTAINING OF SOLAR QUALITY SILICON
FR2871151B1 (en) * 2004-06-07 2006-08-11 Centre Nat Rech Scient Cnrse SILICON REFINING INSTALLATION
KR101300309B1 (en) * 2004-06-18 2013-08-28 엠이엠씨 일렉트로닉 머티리얼즈, 인크. A melter assembly and method for charging a crystal forming apparatus with molten source material
US7465351B2 (en) 2004-06-18 2008-12-16 Memc Electronic Materials, Inc. Melter assembly and method for charging a crystal forming apparatus with molten source material
US7344594B2 (en) 2004-06-18 2008-03-18 Memc Electronic Materials, Inc. Melter assembly and method for charging a crystal forming apparatus with molten source material
US7691199B2 (en) 2004-06-18 2010-04-06 Memc Electronic Materials, Inc. Melter assembly and method for charging a crystal forming apparatus with molten source material
JP4788925B2 (en) * 2007-11-07 2011-10-05 信越化学工業株式会社 Method for purifying metallic silicon
US20090289390A1 (en) * 2008-05-23 2009-11-26 Rec Silicon, Inc. Direct silicon or reactive metal casting
US20100047148A1 (en) * 2008-05-23 2010-02-25 Rec Silicon, Inc. Skull reactor
JP5099774B2 (en) * 2008-06-06 2012-12-19 ユーエムケー・テクノロジ−株式会社 Method and apparatus for purifying silicon
JP5512941B2 (en) * 2008-08-27 2014-06-04 株式会社アルバック Silicon purification apparatus and purification method
JP2011251853A (en) * 2008-08-29 2011-12-15 Shin-Etsu Chemical Co Ltd Method for purifying silicon
TWI393805B (en) 2009-11-16 2013-04-21 Masahiro Hoshino Purification method of metallurgical silicon
TWI397617B (en) * 2010-02-12 2013-06-01 Masahiro Hoshino Metal silicon purification device
TWI403461B (en) 2010-07-21 2013-08-01 Masahiro Hoshino Method and apparatus for improving yield and yield of metallurgical silicon
CN102742034B (en) * 2010-08-16 2015-10-14 星野政宏 The method of purification of metalluragical silicon
CN102834935B (en) * 2010-08-16 2015-06-03 星野政宏 Apparatus and method for purifying metallurgical silicon for solar cells
CN104245579A (en) * 2012-02-06 2014-12-24 菲罗索拉硅太阳能公司 Metal or semiconductor melt refinement method, and vacuum refinement device
JP5942899B2 (en) * 2013-02-28 2016-06-29 三菱化学株式会社 Method for producing silicon
CN111304751B (en) * 2020-03-19 2021-05-18 西北工业大学 H removal through reactive gas2Method and device for purifying raw material of O
CN115571882A (en) * 2022-09-09 2023-01-06 滁州学院 Method for preparing lithium ion battery cathode material based on photovoltaic silicon waste residues

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924584A1 (en) * 1979-06-19 1981-01-15 Straemke Siegfried Silicon prodn. for solar cell - from impure silica or silicon by plasma treatment in reducing gas atmos.
FR2487808A1 (en) * 1980-08-01 1982-02-05 Electricite De France PROCESS AND DEVICE FOR REMOVING BORON IN SILICON BY MELTING OF AREA UNDER REACTIVE PLASMA
EP0274283B1 (en) * 1987-01-08 1989-05-24 Rhone-Poulenc Chimie Process for the plasma purification of divided silicon
JP3205352B2 (en) * 1990-05-30 2001-09-04 川崎製鉄株式会社 Silicon purification method and apparatus
JP3138003B2 (en) * 1991-05-10 2001-02-26 川崎製鉄株式会社 Method and apparatus for purifying silicon
JP3300425B2 (en) * 1992-10-07 2002-07-08 川崎製鉄株式会社 Silicon purification method
JPH07267624A (en) * 1994-03-29 1995-10-17 Kawasaki Steel Corp Purification of silicon and apparatus therefor
JPH09142823A (en) * 1995-11-29 1997-06-03 Kawasaki Steel Corp Purification of metal silicon and device for purifying the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8367008B2 (en) 2008-03-14 2013-02-05 Christian Claude Cyprien Trassy Method for purifying silicon for photovoltaic applications

Also Published As

Publication number Publication date
FR2772741B1 (en) 2000-03-10
DE69802307D1 (en) 2001-12-06
EP1042224A1 (en) 2000-10-11
JP2001526171A (en) 2001-12-18
FR2772741A1 (en) 1999-06-25
AU744857B2 (en) 2002-03-07
CA2315019C (en) 2008-02-26
JP4433610B2 (en) 2010-03-17
WO1999032402A1 (en) 1999-07-01
EP1042224B1 (en) 2001-10-31
ZA9811644B (en) 1999-06-18
AU1765699A (en) 1999-07-12
DE69802307T2 (en) 2002-07-11

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Effective date: 20181217