IT1079704B - Processo per purificare silicio - Google Patents

Processo per purificare silicio

Info

Publication number
IT1079704B
IT1079704B IT49913/77A IT4991377A IT1079704B IT 1079704 B IT1079704 B IT 1079704B IT 49913/77 A IT49913/77 A IT 49913/77A IT 4991377 A IT4991377 A IT 4991377A IT 1079704 B IT1079704 B IT 1079704B
Authority
IT
Italy
Prior art keywords
purifying silicon
purifying
silicon
Prior art date
Application number
IT49913/77A
Other languages
English (en)
Original Assignee
Interlake Inc
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 Interlake Inc filed Critical Interlake Inc
Application granted granted Critical
Publication of IT1079704B publication Critical patent/IT1079704B/it

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49989—Followed by cutting or removing material
IT49913/77A 1976-06-21 1977-06-21 Processo per purificare silicio IT1079704B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/697,865 US4094731A (en) 1976-06-21 1976-06-21 Method of purifying silicon

Publications (1)

Publication Number Publication Date
IT1079704B true IT1079704B (it) 1985-05-13

Family

ID=24802907

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49913/77A IT1079704B (it) 1976-06-21 1977-06-21 Processo per purificare silicio

Country Status (15)

Country Link
US (1) US4094731A (it)
JP (1) JPS6028761B2 (it)
BR (1) BR7703980A (it)
CA (1) CA1076461A (it)
CH (1) CH621316A5 (it)
DE (1) DE2728158A1 (it)
ES (1) ES459971A1 (it)
FR (1) FR2355776A1 (it)
GB (1) GB1528897A (it)
IT (1) IT1079704B (it)
NO (1) NO151082C (it)
PT (1) PT66685B (it)
SE (1) SE426231B (it)
YU (1) YU39805B (it)
ZA (1) ZA773397B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312847A (en) * 1979-05-24 1982-01-26 Aluminum Company Of America Silicon purification system
US4246249A (en) * 1979-05-24 1981-01-20 Aluminum Company Of America Silicon purification process
US4312848A (en) * 1979-05-24 1982-01-26 Aluminum Company Of America Boron removal in silicon purification
DE3332447A1 (de) * 1983-09-08 1985-03-21 Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH, 8263 Burghausen Verfahren zur befreiung von siliciumbruchstuecken von verunreinigungen
JPS6193614A (ja) * 1984-10-15 1986-05-12 Nec Corp 半導体単結晶基板
US4761202A (en) * 1986-05-30 1988-08-02 U.S. Philips Corporation Process for crystal growth of KTiOPO4 from solution
WO1990003952A1 (en) * 1988-10-07 1990-04-19 Crystal Systems, Inc. Method of growing silicon ingots using a rotating melt
JP3823160B2 (ja) * 1997-04-03 2006-09-20 野村マイクロ・サイエンス株式会社 半導体基板内部の洗浄方法
RU2445258C2 (ru) 2006-04-04 2012-03-20 Калисолар Канада Инк. Способ очистки кремния
CA2694806A1 (en) * 2007-07-23 2009-01-29 6N Silicon Inc. Use of acid washing to provide purified silicon crystals
EP2212249B1 (en) * 2007-09-13 2015-01-14 Silicio Ferrosolar, S.L.U. Process for the production of medium and high purity silicon from metallurgical grade silicon
JP5400782B2 (ja) 2007-10-03 2014-01-29 シリコア マテリアルズ インコーポレイテッド シリコン結晶を得るためのシリコン粉末の処理方法
JP4748187B2 (ja) * 2007-12-27 2011-08-17 国立大学法人東北大学 Ｓｉ結晶インゴットの製造方法
US9567691B2 (en) * 2008-06-20 2017-02-14 Varian Semiconductor Equipment Associates, Inc. Melt purification and delivery system
US8545624B2 (en) * 2008-06-20 2013-10-01 Varian Semiconductor Equipment Associates, Inc. Method for continuous formation of a purified sheet from a melt
US8329133B2 (en) * 2008-11-03 2012-12-11 Gt Crystal Systems, Llc Method and apparatus for refining metallurgical grade silicon to produce solar grade silicon
US8460629B2 (en) * 2008-12-01 2013-06-11 Inductotherm Corp. Purification of materials non-electrically conductive in the solid state and electrically conductive in the molten state with electric induction power
US8562932B2 (en) 2009-08-21 2013-10-22 Silicor Materials Inc. Method of purifying silicon utilizing cascading process
KR20120116952A (ko) * 2009-12-01 2012-10-23 다우 코닝 코포레이션 회전 캐스팅 공정
EP4082966A1 (en) 2021-04-26 2022-11-02 Ferroglobe Innovation, S.L. Method for obtaining purified silicon metal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386227A (en) * 1919-09-26 1921-08-02 Electro Metallurg Co Process of refining crude electric-furnace silicon
US2087347A (en) * 1934-12-21 1937-07-20 United States Steel Corp Method of solidifying molten metals
US2402662A (en) * 1941-05-27 1946-06-25 Bell Telephone Labor Inc Light-sensitive electric device
US2872299A (en) * 1954-11-30 1959-02-03 Rca Corp Preparation of reactive materials in a molten non-reactive lined crucible
FR1194484A (fr) * 1958-01-24 1959-11-10 Electro Chimie Soc D Procédé d'obtention de silicium pur par cristallisation fractionnée
DE1219903B (de) * 1964-04-16 1966-06-30 Bayer Ag Vorrichtung zur kontinuierlichen Trennung von Stoffgemischen durch fraktionierte Kristallisation
US3249425A (en) * 1964-08-17 1966-05-03 Joseph R Mares Process for freeze-refining a metal
US3543531A (en) * 1967-05-08 1970-12-01 Clyde C Adams Freeze refining apparatus
US3536123A (en) * 1968-05-14 1970-10-27 Izumi Automotive Ind Co Method of making internal combustion engine cylinder made of an aluminum alloy enriched with a wear-resistant component on the inside surface
US3871872A (en) * 1973-05-30 1975-03-18 Union Carbide Corp Method for promoting metallurgical reactions in molten metal

Also Published As

Publication number Publication date
JPS5319922A (en) 1978-02-23
FR2355776B1 (it) 1984-03-30
SE7707100L (sv) 1977-12-22
ES459971A1 (es) 1978-05-01
PT66685B (en) 1978-11-17
YU39805B (en) 1985-04-30
PT66685A (en) 1977-07-01
YU146877A (en) 1982-08-31
DE2728158C2 (it) 1987-07-16
CA1076461A (en) 1980-04-29
BR7703980A (pt) 1978-04-11
JPS6028761B2 (ja) 1985-07-06
NO772176L (no) 1977-12-22
GB1528897A (en) 1978-10-18
SE426231B (sv) 1982-12-20
CH621316A5 (it) 1981-01-30
NO151082B (no) 1984-10-29
US4094731A (en) 1978-06-13
DE2728158A1 (de) 1977-12-29
FR2355776A1 (fr) 1978-01-20
NO151082C (no) 1985-02-13
ZA773397B (en) 1978-04-26

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960626