NO20063072L - Method for electrolytic refining of metals - Google Patents

Method for electrolytic refining of metals

Info

Publication number
NO20063072L
NO20063072L NO20063072A NO20063072A NO20063072L NO 20063072 L NO20063072 L NO 20063072L NO 20063072 A NO20063072 A NO 20063072A NO 20063072 A NO20063072 A NO 20063072A NO 20063072 L NO20063072 L NO 20063072L
Authority
NO
Norway
Prior art keywords
metal
refined
molten
electrolyte
layer
Prior art date
Application number
NO20063072A
Other languages
Norwegian (no)
Inventor
Kai Johansen
Marianne Engvoll
Bjorn Myhre
Donald R Sadoway
Original Assignee
Elkem As
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 Elkem As filed Critical Elkem As
Publication of NO20063072L publication Critical patent/NO20063072L/en

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  • Electrolytic Production Of Metals (AREA)
  • Silicon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Den foreliggende oppfinnelse vedrører en elektrolytisk fremgangsmåte for raffinering av metaller med et smeltepunkt over ca. 1000?C, særlig silisium, hvor det fremskaffes et øvre smeltet sjikt av det samme metallet som metallet som skal raffineres, hvilket sjikt utgjør en katode, et nedre smeltet sjikt av metallet som skal raffineres og minst ett metall mer edelt enn metallet som skal raffineres, hvilket nedre sjikt utgjør en anode, hvilken legering har en høyere tetthet enn metallet som skal raffineres, og en smeltet oksidbasert elektrolytt inneholdende SiO2, hvilken elektrolytt er i smeltet tilstand og har et smeltepunkt under driftstemperaturen for prosessen, hvilken elektrolytt har en tetthet mellom tettheten for det øvre og det nedre smeltede sjikt, føre en likestrøm fra anoden gjennom elektrolytten til katoden hvorved metallet som skal raffineres beveges fra anoden og avsettes i smeltet tilstand ved katoden.The present invention relates to an electrolytic process for refining metals having a melting point above ca. 1000 ° C, especially silicon, where an upper molten layer of the same metal as the metal to be refined is provided, which layer is a cathode, a lower molten layer of the metal to be refined and at least one metal more noble than the metal to be refined. , which lower layer constitutes an anode, which alloy has a higher density than the metal to be refined, and a molten oxide-based electrolyte containing SiO2, which electrolyte is in the molten state and has a melting point below the operating temperature of the process, which electrolyte has a density between the densities for the upper and lower molten layers, direct a direct current from the anode through the electrolyte to the cathode whereby the metal to be refined is moved from the anode and deposited in the molten state at the cathode.

NO20063072A 2006-03-10 2006-07-03 Method for electrolytic refining of metals NO20063072L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37287506A 2006-03-10 2006-03-10

Publications (1)

Publication Number Publication Date
NO20063072L true NO20063072L (en) 2007-09-11

Family

ID=38792256

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20063072A NO20063072L (en) 2006-03-10 2006-07-03 Method for electrolytic refining of metals

Country Status (2)

Country Link
CN (1) CN101400811B (en)
NO (1) NO20063072L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8764962B2 (en) * 2010-08-23 2014-07-01 Massachusetts Institute Of Technology Extraction of liquid elements by electrolysis of oxides
CN102534666B (en) * 2011-12-30 2014-10-22 大连理工大学 Electrochemical double refining purification method for high purity silicon and high purity aluminum
CN103898553B (en) * 2014-03-25 2016-06-22 中国科学院过程工程研究所 A kind of electrodeposition and refine are synchronously performed the method producing calcium metal
KR101793471B1 (en) * 2016-07-20 2017-11-06 충남대학교산학협력단 Refining Method of Metal Using Electroreduction and Electrorefining process
CN109055994A (en) * 2018-09-26 2018-12-21 北京科技大学 A kind of method of titanium-containing blast furnace slag serialization electrolytic preparation high purity titanium
CN110429356A (en) * 2019-07-15 2019-11-08 华中科技大学 A kind of recovery method and device of liquid metal cell
CN110408961B (en) * 2019-09-05 2021-04-23 中南大学 Arc striking starting method of rare earth electrolytic cell
CN113981491B (en) * 2021-12-20 2023-04-25 郑州大学 Method for preparing metallic beryllium by low-temperature molten salt electrolysis

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290209A (en) * 1962-03-14
US4292145A (en) * 1980-05-14 1981-09-29 The Board Of Trustees Of Leland Stanford Junior University Electrodeposition of molten silicon
NO942121L (en) * 1994-06-07 1995-12-08 Jan Stubergh Manufacture and apparatus for producing silicon "metal", silumin and aluminum metal
US5976345A (en) * 1997-01-06 1999-11-02 Boston University Method and apparatus for metal extraction and sensor device related thereto

Also Published As

Publication number Publication date
CN101400811B (en) 2012-03-07
CN101400811A (en) 2009-04-01

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