A method for precipitating iron from a zinc sulphate solution as hematite

Details for Australian Patent Application No. 2002346762 (hide)

Owner Outokumpu Oyj

Inventors Lehtinen, Leena; Lahtinen, Marko; Takala, Heikki

Agent Griffith Hack

Pub. Number AU-B-2002346762

PCT Number PCT/FI02/00972

PCT Pub. Number WO2003/056042

Priority 20012450 13.12.01 FI

Filing date 3 December 2002

Wipo publication date 15 July 2003

Acceptance publication date 10 July 2008

International Classifications

C01G 49/06 (2006.01) Compounds of iron

C01G 9/06 (2006.01) Compounds of zinc

C22B 3/44 (2006.01) Extraction of metal compounds from ores or concentrates by wet processes

C22B 23/00 (2006.01) Obtaining nickel or cobalt

Event Publications

13 March 2003 Complete Application Filed

  Priority application(s): 20012450 13.12.01 FI

4 September 2003 Application Open to Public Inspection

  Published as AU-B-2002346762

10 July 2008 Application Accepted

  Published as AU-B-2002346762

6 November 2008 Standard Patent Sealed

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