A method for the precipitation of silica in connection with zinc ore leaching

Details for Australian Patent Application No. 2002237342 (hide)

Owner Outokumpu Oyj

Inventors Talonen, Panu; Fugleberg, Sigmund; Riekkola-Vanhanen, Marja; Pekkala, Pertti

Agent Griffith Hack

Pub. Number AU-B-2002237342

PCT Pub. Number WO2002/072896

Priority 20010505 14.03.01 FI

Filing date 8 March 2002

Wipo publication date 24 September 2002

Acceptance publication date 15 March 2007

International Classifications

C22B 7/04 (2006.01) Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof - Working-up slag

C22B 3/04 (2006.01) Extraction of metal compounds from ores or concentrates by wet processes

C22B 3/08 (2006.01) Extraction of metal compounds from ores or concentrates by wet processes

C22B 19/00 (2006.01) Obtaining zinc or zinc oxide

C22B 19/20 (2006.01) Obtaining zinc or zinc oxide

C22B 19/30 (2006.01) Obtaining zinc or zinc oxide

Event Publications

20 March 2003 Application Open to Public Inspection

  Published as AU-B-2002237342

15 March 2007 Application Accepted

  Published as AU-B-2002237342

19 July 2007 Standard Patent Sealed

6 September 2007 Assignment Registered

  Outokumpu Oyj The patent has been assigned to Outotec Oyj

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