Removal of carbonaceous materials and magnesium from zinc silicate flotation concentrate by treatment in autoclave with zinc-bearing spent solution

Details for Australian Patent Application No. 2003243853 (hide)

Owner Votorantim Metais Zinco S. A.

Inventors De Souza, Adelson Dias

Agent Pizzeys

Pub. Number AU-B-2003243853

PCT Number PCT/BR03/00096

PCT Pub. Number WO2004/020678

Priority PI 0205746-8 02.09.02 BR

Filing date 15 July 2003

Wipo publication date 19 March 2004

Acceptance publication date 24 April 2008

International Classifications

C22B 3/44 (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 3/20 (2006.01) Extraction of metal compounds from ores or concentrates by wet processes

C22B 19/02 (2006.01) Obtaining zinc or zinc oxide

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

Event Publications

11 September 2003 Complete Application Filed

  Priority application(s): PI 0205746-8 02.09.02 BR

6 May 2004 Application Open to Public Inspection

  Published as AU-B-2003243853

24 April 2008 Application Accepted

  Published as AU-B-2003243853

21 August 2008 Standard Patent Sealed

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