CH621316A5 - - Google Patents
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- Publication number
- CH621316A5 CH621316A5 CH752477A CH752477A CH621316A5 CH 621316 A5 CH621316 A5 CH 621316A5 CH 752477 A CH752477 A CH 752477A CH 752477 A CH752477 A CH 752477A CH 621316 A5 CH621316 A5 CH 621316A5
- Authority
- CH
- Switzerland
- Prior art keywords
- mother liquor
- mold
- silicon
- weight
- iron
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
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 |
---|---|
CH621316A5 true CH621316A5 (pt) | 1981-01-30 |
Family
ID=24802907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH752477A CH621316A5 (pt) | 1976-06-21 | 1977-06-20 |
Country Status (15)
Country | Link |
---|---|
US (1) | US4094731A (pt) |
JP (1) | JPS6028761B2 (pt) |
BR (1) | BR7703980A (pt) |
CA (1) | CA1076461A (pt) |
CH (1) | CH621316A5 (pt) |
DE (1) | DE2728158A1 (pt) |
ES (1) | ES459971A1 (pt) |
FR (1) | FR2355776A1 (pt) |
GB (1) | GB1528897A (pt) |
IT (1) | IT1079704B (pt) |
NO (1) | NO151082C (pt) |
PT (1) | PT66685B (pt) |
SE (1) | SE426231B (pt) |
YU (1) | YU39805B (pt) |
ZA (1) | ZA773397B (pt) |
Families Citing this family (20)
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 |
KR101338281B1 (ko) * | 2007-07-23 | 2013-12-09 | 실리코르 머티리얼즈 인코포레이티드 | 산 세척을 이용한 정제된 실리콘 결정의 제조 방법 |
BRPI0816972A2 (pt) * | 2007-09-13 | 2015-03-24 | Silicium Becancour Inc | Processo para produção de silício de pureza média e alta a partir de silício de grau metalúrgico |
KR101247666B1 (ko) * | 2007-10-03 | 2013-04-01 | 실리코르 머티리얼즈 인코포레이티드 | 실리콘 결정을 얻기 위한 실리콘 분말의 가공 방법 |
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 |
US8545624B2 (en) * | 2008-06-20 | 2013-10-01 | Varian Semiconductor Equipment Associates, Inc. | Method for continuous formation of a purified sheet from a melt |
US9567691B2 (en) * | 2008-06-20 | 2017-02-14 | Varian Semiconductor Equipment Associates, Inc. | Melt purification and delivery system |
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 |
WO2011068736A1 (en) * | 2009-12-01 | 2011-06-09 | Dow Corning Corporation | Rotational casting process |
EP4082966A1 (en) | 2021-04-26 | 2022-11-02 | Ferroglobe Innovation, S.L. | Method for obtaining purified silicon metal |
Family Cites Families (10)
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 |
-
1976
- 1976-06-21 US US05/697,865 patent/US4094731A/en not_active Expired - Lifetime
-
1977
- 1977-06-03 CA CA279,803A patent/CA1076461A/en not_active Expired
- 1977-06-06 ZA ZA00773397A patent/ZA773397B/xx unknown
- 1977-06-09 GB GB24155/77A patent/GB1528897A/en not_active Expired
- 1977-06-13 YU YU1468/77A patent/YU39805B/xx unknown
- 1977-06-16 FR FR7718553A patent/FR2355776A1/fr active Granted
- 1977-06-20 SE SE7707100A patent/SE426231B/xx not_active IP Right Cessation
- 1977-06-20 JP JP52073176A patent/JPS6028761B2/ja not_active Expired
- 1977-06-20 PT PT66685A patent/PT66685B/pt unknown
- 1977-06-20 NO NO772176A patent/NO151082C/no unknown
- 1977-06-20 CH CH752477A patent/CH621316A5/fr not_active IP Right Cessation
- 1977-06-20 BR BR7703980A patent/BR7703980A/pt unknown
- 1977-06-20 DE DE19772728158 patent/DE2728158A1/de active Granted
- 1977-06-21 IT IT49913/77A patent/IT1079704B/it active
- 1977-06-21 ES ES459971A patent/ES459971A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NO772176L (no) | 1977-12-22 |
SE7707100L (sv) | 1977-12-22 |
IT1079704B (it) | 1985-05-13 |
JPS6028761B2 (ja) | 1985-07-06 |
NO151082C (no) | 1985-02-13 |
ES459971A1 (es) | 1978-05-01 |
ZA773397B (en) | 1978-04-26 |
YU39805B (en) | 1985-04-30 |
FR2355776B1 (pt) | 1984-03-30 |
BR7703980A (pt) | 1978-04-11 |
NO151082B (no) | 1984-10-29 |
SE426231B (sv) | 1982-12-20 |
PT66685A (en) | 1977-07-01 |
FR2355776A1 (fr) | 1978-01-20 |
YU146877A (en) | 1982-08-31 |
US4094731A (en) | 1978-06-13 |
JPS5319922A (en) | 1978-02-23 |
PT66685B (en) | 1978-11-17 |
DE2728158A1 (de) | 1977-12-29 |
GB1528897A (en) | 1978-10-18 |
DE2728158C2 (pt) | 1987-07-16 |
CA1076461A (en) | 1980-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PFA | Name/firm changed |
Owner name: ACME STEEL COMPANY |
|
PUE | Assignment |
Owner name: GLOBE METALLURGICAL INC. |
|
PL | Patent ceased |