Methods to reduce hydrosulphide and arsine emissions during wet ore processing

Details for Australian Patent Application No. 2003217879 (hide)

Owner CABOT CORPORATION

Inventors Hard, Robert A

Agent Watermark

Pub. Number AU-A-2003217879

PCT Number PCT/US03/06432

PCT Pub. Number WO2003/076671

Priority 10/091,377 04.03.02 US

Filing date 3 March 2003

Wipo publication date 22 September 2003

International Classifications

C22B 034/24 Obtaining refractory metals

C22B 003/06 Extraction of metal compounds from ores or concentrates by wet processes

C01G 035/00 Compounds of tantalum

C22B 001/00 Preliminary treatment of ores or scrap

Event Publications

31 July 2003 Complete Application Filed

  Priority application(s): 10/091,377 04.03.02 US

30 October 2003 Application Open to Public Inspection

  Published as AU-A-2003217879

31 August 2006 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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