TW372935B - Method for removing boron from metallurgical grade silicon and apparatus - Google Patents

Method for removing boron from metallurgical grade silicon and apparatus

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Publication number
TW372935B
TW372935B TW087100564A TW87100564A TW372935B TW 372935 B TW372935 B TW 372935B TW 087100564 A TW087100564 A TW 087100564A TW 87100564 A TW87100564 A TW 87100564A TW 372935 B TW372935 B TW 372935B
Authority
TW
Taiwan
Prior art keywords
gas
metallurgical grade
silicon
grade silicon
removing boron
Prior art date
Application number
TW087100564A
Other languages
Chinese (zh)
Inventor
Naomichi Nakamura
Masamichi Abe
Kazuhiro Hanazawa
Hiroyuki Baba
Noriyoshi Yuge
Original Assignee
Kawasaki Steel Co
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 JP9009537A external-priority patent/JPH10203816A/en
Priority claimed from JP9009539A external-priority patent/JPH10203813A/en
Priority claimed from JP9009540A external-priority patent/JPH10203814A/en
Priority claimed from JP9013711A external-priority patent/JPH10212113A/en
Priority claimed from JP9079318A external-priority patent/JPH10279305A/en
Application filed by Kawasaki Steel Co filed Critical Kawasaki Steel Co
Application granted granted Critical
Publication of TW372935B publication Critical patent/TW372935B/en

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Abstract

Method and apparatus for refining metallurgical grade silicon to carry out deboronization rapidly in production of silicon for solar cells, by blowing a plasma gas of steam and inert gas on a surface of molten silicon, and wherein a reducing gas is further applied to the molten metal surface, and including the further step of controlling mix ratios of steam and reducing gas, the angle of blowing of the gas, and the deboronization parameters.
TW087100564A 1997-01-22 1998-01-16 Method for removing boron from metallurgical grade silicon and apparatus TW372935B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP9009537A JPH10203816A (en) 1997-01-22 1997-01-22 Removal of boron from metallic silicon
JP9009539A JPH10203813A (en) 1997-01-22 1997-01-22 Removal of boron from metallic silicon
JP9009540A JPH10203814A (en) 1997-01-22 1997-01-22 Removal of boron from metallic silicon
JP9013711A JPH10212113A (en) 1997-01-28 1997-01-28 Method for removing boron from metal silicon
JP9079318A JPH10279305A (en) 1997-03-31 1997-03-31 Method for removing boron from metal silicon

Publications (1)

Publication Number Publication Date
TW372935B true TW372935B (en) 1999-11-01

Family

ID=57941656

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087100564A TW372935B (en) 1997-01-22 1998-01-16 Method for removing boron from metallurgical grade silicon and apparatus

Country Status (1)

Country Link
TW (1) TW372935B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494274B (en) * 2009-09-18 2015-08-01 Ulvac Inc Method and apparatus for refining silicon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494274B (en) * 2009-09-18 2015-08-01 Ulvac Inc Method and apparatus for refining silicon
TWI552958B (en) * 2009-09-18 2016-10-11 愛發科股份有限公司 Method and apparatus for refining silicon

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees