CA2495162C - Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells - Google Patents

Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells Download PDF

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Publication number
CA2495162C
CA2495162C CA2495162A CA2495162A CA2495162C CA 2495162 C CA2495162 C CA 2495162C CA 2495162 A CA2495162 A CA 2495162A CA 2495162 A CA2495162 A CA 2495162A CA 2495162 C CA2495162 C CA 2495162C
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CA
Canada
Prior art keywords
cell
sulfur
bath
impurity
electrolytic bath
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA2495162A
Other languages
English (en)
French (fr)
Other versions
CA2495162A1 (en
Inventor
Alfred F. Lacamera
Siba P. Ray
Xinghua Liu
Robert L. Kozarek
Jerry L. Roddy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elysis LP
Original Assignee
Alcoa 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.)
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Publication date
Application filed by Alcoa Inc filed Critical Alcoa Inc
Publication of CA2495162A1 publication Critical patent/CA2495162A1/en
Application granted granted Critical
Publication of CA2495162C publication Critical patent/CA2495162C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
CA2495162A 2002-08-05 2002-08-05 Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells Expired - Lifetime CA2495162C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/024780 WO2004013380A1 (en) 2002-08-05 2002-08-05 Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells

Publications (2)

Publication Number Publication Date
CA2495162A1 CA2495162A1 (en) 2004-02-12
CA2495162C true CA2495162C (en) 2010-07-27

Family

ID=31493901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2495162A Expired - Lifetime CA2495162C (en) 2002-08-05 2002-08-05 Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells

Country Status (7)

Country Link
EP (1) EP1534879B1 (no)
CN (1) CN100430523C (no)
AU (1) AU2002332463B2 (no)
BR (1) BR0215834B1 (no)
CA (1) CA2495162C (no)
NO (1) NO344248B1 (no)
WO (1) WO2004013380A1 (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121121A (zh) * 2010-01-07 2011-07-13 贵阳铝镁设计研究院 一种铝用阳极生产过程中对铁含量的工艺控制方法
EP2864252A1 (en) 2012-06-25 2015-04-29 Silicor Materials Inc. Method for purifying silicon
EP2864512A1 (en) * 2012-06-25 2015-04-29 Silicor Materials Inc. Method to purify aluminum and use of purified aluminum to purify silicon
TWI615363B (zh) * 2016-04-08 2018-02-21 科閎電子股份有限公司 降低電解液中至少一污染性陽離子濃度的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6258247B1 (en) * 1998-02-11 2001-07-10 Northwest Aluminum Technology Bath for electrolytic reduction of alumina and method therefor
CA2321000C (en) * 1998-12-17 2005-05-24 Nippon Light Metal Co., Ltd. Method of producing highly pure aluminum primary base metal
NO20010927D0 (no) * 2001-02-23 2001-02-23 Norsk Hydro As FremgangsmÕte og apparatur for fremstilling av metall

Also Published As

Publication number Publication date
EP1534879B1 (en) 2016-09-28
EP1534879A1 (en) 2005-06-01
CN100430523C (zh) 2008-11-05
CA2495162A1 (en) 2004-02-12
BR0215834A (pt) 2005-06-07
BR0215834B1 (pt) 2013-02-19
WO2004013380A1 (en) 2004-02-12
NO20051171L (no) 2005-05-03
AU2002332463A1 (en) 2004-02-23
AU2002332463B2 (en) 2008-06-26
CN1659313A (zh) 2005-08-24
NO344248B1 (no) 2019-10-21

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