Method and equipment for liquid-liquid extraction

Details for Australian Patent Application No. 2004222535 (hide)

Owner Outokumpu Oyj

Inventors Pekkala, Pertti; Ekman, Eero; Lyyra, Juhani; Kuusisto, Raimo; Hultholm, Stig-Erik; Nyman, Bror; Lilja, Launo

Agent Griffith Hack

Pub. Number AU-A-2004222535

PCT Pub. Number WO2004/082798

Priority 20030411 19.03.03 FI

Filing date 11 March 2004

Wipo publication date 30 September 2004

International Classifications

B01D 011/04 Solvent extraction - of solutions which are liquid

C22B 003/02 Extraction of metal compounds from ores or concentrates by wet processes

C22B 019/00 Obtaining zinc or zinc oxide

C22B 060/02 Obtaining metals of atomic number 87 or higher, i.e. radioactive metals

C22B 015/00 Obtaining copper

C22B 023/00 Obtaining nickel or cobalt

C22B 034/34 Obtaining refractory metals

Event Publications

29 September 2005 PCT application entered the National Phase

  PCT publication WO2004/082798 Priority application(s): WO2004/082798

18 October 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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