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SE8207238D0 - PROCEDURE FOR PURIFICATION OF SILICONE - Google Patents

PROCEDURE FOR PURIFICATION OF SILICONE

Info

Publication number
SE8207238D0
SE8207238D0 SE8207238A SE8207238A SE8207238D0 SE 8207238 D0 SE8207238 D0 SE 8207238D0 SE 8207238 A SE8207238 A SE 8207238A SE 8207238 A SE8207238 A SE 8207238A SE 8207238 D0 SE8207238 D0 SE 8207238D0
Authority
SE
Sweden
Prior art keywords
silicon
slag
silicone
purification
procedure
Prior art date
Application number
SE8207238A
Other languages
Swedish (sv)
Other versions
SE8207238L (en
Inventor
W Gmohling
G Kreutzberger
Original Assignee
Sueddeutsche Kalkstickstoff
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 Sueddeutsche Kalkstickstoff filed Critical Sueddeutsche Kalkstickstoff
Publication of SE8207238D0 publication Critical patent/SE8207238D0/en
Publication of SE8207238L publication Critical patent/SE8207238L/en

Links

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Catalysts (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A process for purifying silicon, to use in solar cells, by treating crude, or metallurgical grade, silicon with a molten slag comprising an alkaline earth metal oxide(s) and/or alkali metal oxide(s) wherein the crude silicon is mixed in comminuted form with the slag or the slag components before melting is carried out.
SE8207238A 1982-01-18 1982-12-17 PROCEDURE FOR PURIFICATION OF SILICONE SE8207238L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3201312A DE3201312C2 (en) 1982-01-18 1982-01-18 Process for purifying silicon

Publications (2)

Publication Number Publication Date
SE8207238D0 true SE8207238D0 (en) 1982-12-17
SE8207238L SE8207238L (en) 1983-07-19

Family

ID=6153285

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8207238A SE8207238L (en) 1982-01-18 1982-12-17 PROCEDURE FOR PURIFICATION OF SILICONE

Country Status (6)

Country Link
JP (1) JPS58130114A (en)
DE (1) DE3201312C2 (en)
FR (1) FR2519961A1 (en)
GB (1) GB2116956A (en)
IT (1) IT1154400B (en)
SE (1) SE8207238L (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO152551C (en) * 1983-02-07 1985-10-16 Elkem As PROCEDURE FOR THE PREPARATION OF PURE SILICONE.
DE3331046A1 (en) * 1983-08-29 1985-03-14 Wacker-Chemie GmbH, 8000 München METHOD FOR TREATING SILICON AND FERROSILICIUM WITH SLAG
FR2556333A1 (en) * 1983-12-09 1985-06-14 Hanna Mining Co Process for purifying silicon for applications requiring high purity
US4798659A (en) * 1986-12-22 1989-01-17 Dow Corning Corporation Addition of calcium compounds to the carbothermic reduction of silica
US5772728A (en) * 1994-03-30 1998-06-30 Elkem Asa Method for upgrading of silicon-containing residues obtained after leaching of copper-containing residues from chlorosilane synthesis
NO180189C (en) * 1994-03-30 1997-03-05 Elkem Materials Process for the preparation of silicon-rich, undissolved residues from leaching of copper-containing residues from organochlorosilane synthesis
NO180188C (en) * 1994-03-30 1997-03-05 Elkem Materials Process for the preparation of residues from direct synthesis of organochlorosilanes and / or chlorosilanes
CN100341780C (en) * 2002-02-04 2007-10-10 夏普株式会社 Silicon purifying method, slag for purifying silicon, and purified silicon
JP2005255417A (en) * 2002-03-18 2005-09-22 Sharp Corp Silicon purification method
NO318092B1 (en) * 2002-05-22 2005-01-31 Elkem Materials Calcium-silicate-based slag, process for the preparation of calcium-silicate-based slag, and application for slag treatment of molten silicon
JP4436904B2 (en) * 2002-07-23 2010-03-24 新日鉄マテリアルズ株式会社 Si manufacturing method
JP4766837B2 (en) 2004-03-03 2011-09-07 新日鉄マテリアルズ株式会社 Method for removing boron from silicon
JP4632769B2 (en) * 2004-12-09 2011-02-16 シャープ株式会社 Silicon purification method
JP4749730B2 (en) 2005-02-09 2011-08-17 新日鉄マテリアルズ株式会社 Si refining method
JP4966560B2 (en) * 2005-03-07 2012-07-04 新日鉄マテリアルズ株式会社 Manufacturing method of high purity silicon
JP5140835B2 (en) * 2005-03-07 2013-02-13 新日鉄住金マテリアルズ株式会社 Manufacturing method of high purity silicon
JP4850501B2 (en) 2005-12-06 2012-01-11 新日鉄マテリアルズ株式会社 High purity silicon manufacturing apparatus and manufacturing method
US7682585B2 (en) 2006-04-25 2010-03-23 The Arizona Board Of Regents On Behalf Of The University Of Arizona Silicon refining process
CN104583123B (en) * 2012-06-25 2017-07-25 希利柯尔材料股份有限公司 The method of purifying silicon
CN103553050B (en) * 2013-10-25 2016-03-02 青岛隆盛晶硅科技有限公司 Polysilicon serialization medium melting method
GB201621609D0 (en) * 2016-12-19 2017-02-01 Norwegian Univ Of Science And Tech (Ntnu) Process for the production of commercial grade silicon
CN108675306B (en) * 2018-05-30 2021-11-16 云南永昌硅业股份有限公司 Method for efficiently recovering silicon metal in silicon slag
CN115124041B (en) * 2022-05-27 2023-11-17 大连理工大学 A method of purifying polycrystalline silicon waste using waste glass from solar cells

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871872A (en) * 1973-05-30 1975-03-18 Union Carbide Corp Method for promoting metallurgical reactions in molten metal
DE2706175C3 (en) * 1977-02-14 1980-05-29 Wacker-Chemie Gmbh, 8000 Muenchen Process for melting and purifying silicon
DE2729464A1 (en) * 1977-06-30 1979-01-11 Consortium Elektrochem Ind Purification of silicon for mfr. of solar heating fuel cell - by melting, solidifying and treating with an acid mixt.
EP0002135B1 (en) * 1977-11-21 1982-11-03 Union Carbide Corporation Improved refined metallurgical silicon and process for the production thereof
IT1100218B (en) * 1978-11-09 1985-09-28 Montedison Spa SILICON PURIFICATION PROCEDURE
DE2933164A1 (en) * 1979-08-16 1981-02-26 Consortium Elektrochem Ind METHOD FOR CLEANING RAW SILICON

Also Published As

Publication number Publication date
GB2116956A (en) 1983-10-05
FR2519961A1 (en) 1983-07-22
SE8207238L (en) 1983-07-19
GB8301207D0 (en) 1983-02-16
DE3201312C2 (en) 1983-12-22
DE3201312A1 (en) 1983-07-28
JPS58130114A (en) 1983-08-03
IT8224563A0 (en) 1982-12-02
IT1154400B (en) 1987-01-21

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