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특허 상세정보

Apparatus for obtaining silicon from fluosilicic acid

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C30B-015/10   
미국특허분류(USC) 422/189 ; 422/232 ; 422/248 ; 156/DIG ; 64
출원번호 US-0453734 (1982-12-27)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 52  인용 특허 : 13
초록

Apparatus for producing low cost, high purity solar grade silicon ingots in single crystal or quasi single crystal ingot form in a substantially continuous operation in a two stage reactor starting with sodium fluosilicate and a metal more electropositive than silicon (preferably sodium) in separate compartments having easy vapor transport therebetween and thermally decomposing the sodium fluosilicate to cause formation of substantially pure silicon and a metal fluoride which may be continuously separated in the melt and silicon may be directly and conti...

대표
청구항

A system for producing low cost, high purity, solar grade silicon by reaction of gaseous silicon tetrafluoride with sodium in substantially stoichiometric quantities to produce a reaction product from which silicon is recovered and wherein said fluoride gas used in the reaction is obtained by thermal decomposition of sodium fluosilicate which is precipitated from aqueous fluosilicic acid generated from phosphate rock conversion to fertilizer, said system including: a chemical reactant feed section and a reactor section; said reactor section including fir...

이 특허에 인용된 특허 (13)

  1. Jewett David N. (Harvard MA). Apparatus for producing semiconductor grade silicon and replenishing the melt of a crystal growth system. USP1981054265859.
  2. Mazelsky ; Robert ; Fey ; Maurice G. ; Harvey ; Francis J.. Arc heater method for the production of single crystal silicon. USP1978074102767.
  3. Fey ; Maurice G. ; Harvey ; II ; Francis J. ; McDonald ; Jack. Arc heater production of silicon involving alkali or alkaline-earth metals. USP1978074102765.
  4. Schmidt Walter (Schaffhausen CH) Stahlin Walter (Schaffhausen CH). Crucible. USP1977104055391.
  5. Arcella Frank G. (Bethel Park PA) Wolf Charles B. (Irwin PA) Fey Maurice G. (Pittsburgh PA). Liquid silicon casting control mechanism. USP1979074162291.
  6. Frosch Robert A. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Irwin PA) Wolf Charles B. (Irwin PA) Meyer Thomas N. (Murrysville PA). Method of producing silicon. USP1980024188368.
  7. Fey ; Maurice G.. Process for doping high purity silicon in an arc heater. USP1978074102766.
  8. Sanjurjo Angel (San Jose CA). Process for obtaining silicon from fluosilicic acid. USP1984044442082.
  9. Schmidt Dietrich (Burghausen DEX) Hofer Johann (Kirchdorf DEX) Huber Karl E. (Ach ATX). Process for the production of pure, silicon elemental semiconductor material. USP1979014132763.
  10. Harvey ; II Francis J. (Murrysville PA) Ciliberti David F. (Murrysville PA) Meyer Thomas N. (Murrysville PA) Fey Maurice G. (Pittsburgh PA). Production of high purity silicon by a heterogeneous arc heater reduction. USP1980124239740.
  11. Dietl Josef (Neutting DEX) Holm Claus (Baldham DEX) Sirtl Erhard (Marktl DEX). Semicontinuous process for the manufacture of pure silicon. USP1982014312850.
  12. Padovani Francois A. (Dallas TX). Silicon seed production process. USP1980064207360.
  13. Frosch Robert A. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Finleyville PA) Keeton Alvin R. (Finleyville PA). Sodium storage and injection system. USP1979094169129.

이 특허를 인용한 특허 피인용횟수: 52

  1. Yoshida Shuichi (Handa JPX) Sawada Eiji (Handa JPX) Jinno Akio (Chita JPX). Apparatus for melting waste. USP1989034816228.
  2. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for administering compartmentalized frozen particles. USP2013108545857.
  3. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for administering compartmentalized frozen particles. USP2013108563012.
  4. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for administering compartmentalized frozen particles. USP2013108551506.
  5. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for administering compartmentalized frozen particles. USP2013128603494.
  6. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for biological remodeling with frozen particle compositions. USP2013128603495.
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  17. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for surface abrasion with frozen particles. USP2013048409376.
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  19. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for surface abrasion with frozen particles. USP2014058721583.
  20. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for surface abrasion with frozen particles. USP2014058725420.
  21. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for surface abrasion with frozen particles. USP2013108545855.
  22. Boyden, Edward S.; Cook, Daniel B.; Hyde, Roderick A.; Leuthardt, Eric C.; Myhrvold, Nathan P.; Sweeney, Elizabeth A.; Wood, Jr., Lowell L.. Compositions and methods for surface abrasion with frozen particles. USP2015069050070.
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