AU2003206625A1 - Method for producing silicon - Google Patents

Method for producing silicon

Info

Publication number
AU2003206625A1
AU2003206625A1 AU2003206625A AU2003206625A AU2003206625A1 AU 2003206625 A1 AU2003206625 A1 AU 2003206625A1 AU 2003206625 A AU2003206625 A AU 2003206625A AU 2003206625 A AU2003206625 A AU 2003206625A AU 2003206625 A1 AU2003206625 A1 AU 2003206625A1
Authority
AU
Australia
Prior art keywords
metal
producing silicon
fluoride
sif4
group
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.)
Abandoned
Application number
AU2003206625A
Inventor
Norbert Auner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Chemie AG
Dow Silicones Corp
Original Assignee
Wacker Chemie AG
Dow Corning Corp
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
Priority claimed from DE10217125A external-priority patent/DE10217125A1/en
Application filed by Wacker Chemie AG, Dow Corning Corp filed Critical Wacker Chemie AG
Publication of AU2003206625A1 publication Critical patent/AU2003206625A1/en
Abandoned legal-status Critical Current

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
    • C01B33/021—Preparation
    • C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
    • C01B33/033—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by reduction of silicon halides or halosilanes with a metal or a metallic alloy as the only reducing agents

Landscapes

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

Abstract

The invention relates to a method for producing silicon, according to which SiO2 or silicates are reacted thermally with hydrogen fluoride or a fluoride of a metal of group I or II of the periodic table, or with hexafluorosilicates to obtain SiF4. The SiF4 that is obtained is reduced to Si and a metal fluoride by means of a metal of group I or II of the periodic table. The method is characterised in that it represents a closed production process, in which very few or no by-products are generated and that the co-reactants required for the reaction are obtained to a great extent from the educts of the method.
AU2003206625A 2002-01-18 2003-01-17 Method for producing silicon Abandoned AU2003206625A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10201772 2002-01-18
DE10201772.7 2002-01-18
DE10217125.4 2002-04-17
DE10217125A DE10217125A1 (en) 2002-01-18 2002-04-17 Process for the production of silicon
PCT/DE2003/000115 WO2003059814A1 (en) 2002-01-18 2003-01-17 Method for producing silicon

Publications (1)

Publication Number Publication Date
AU2003206625A1 true AU2003206625A1 (en) 2003-07-30

Family

ID=26010938

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003206625A Abandoned AU2003206625A1 (en) 2002-01-18 2003-01-17 Method for producing silicon

Country Status (6)

Country Link
EP (1) EP1472184B8 (en)
AT (1) ATE315536T1 (en)
AU (1) AU2003206625A1 (en)
DE (1) DE50302184D1 (en)
ES (1) ES2258216T3 (en)
WO (1) WO2003059814A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0813442A8 (en) * 2007-06-19 2015-12-01 Zakrytoe Aktsionernoe Obschestvo Solar Si METHOD FOR PRODUCTION OF POLYCRYSTALLINE SILICON FROM A SOLUTION OF HYDROSILICOFLUORIDIC ACID, AND INSTALLATION FOR PRODUCTION OF POLYCRYSTALLINE SILICON FROM A SOLUTION OF FLUOROSILICIC ACID IN THE FORM OF A POWDER WITH SPHERICAL-SHAPED PARTICLES
AU2008282166A1 (en) * 2007-08-01 2009-02-05 Boston Silicon Materials Llc Process for the production of high purity elemental silicon
JP5291098B2 (en) 2007-08-23 2013-09-18 オブシェストボ、エス、オルガニチェンノイ、オトベトストベンノストユ、“ソーラー、エスアイ” Technology for the production of polycrystalline silicon from fluorosilicic acid solution and equipment for its production
RU2525415C1 (en) * 2012-12-28 2014-08-10 Руслан Алексеевич Шевченко Production of silicon and its compounds and production line to this end

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102765A (en) * 1977-01-06 1978-07-25 Westinghouse Electric Corp. Arc heater production of silicon involving alkali or alkaline-earth metals
GB2079262B (en) * 1980-07-02 1984-03-28 Central Glass Co Ltd Process of preparing silicon tetrafluoride by using hydrogen fluoride gas
US4590043A (en) * 1982-12-27 1986-05-20 Sri International Apparatus for obtaining silicon from fluosilicic acid

Also Published As

Publication number Publication date
WO2003059814A1 (en) 2003-07-24
EP1472184B1 (en) 2006-01-11
ATE315536T1 (en) 2006-02-15
EP1472184A1 (en) 2004-11-03
ES2258216T3 (en) 2006-08-16
DE50302184D1 (en) 2006-04-06
EP1472184B8 (en) 2006-05-03

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase