PROCESS FOR REMOVING SODIUM SULFATE FROM NICKEL HYDROXIDE EFFLUENT STREAMS

Details for Australian Patent Application No. 2002308457 (hide)

Owner INCO LIMITED

Inventors BABJAK, Juraj; ZOU, Feng

Pub. Number AU-A-2002308457

PCT Number PCT/CA02/00536

PCT Pub. Number WO2003/002460

Priority 09/896,806 29.06.01 US

Filing date 18 April 2002

Wipo publication date 3 March 2003

International Classifications

C01G 053/04 Compounds of nickel

C01D 005/00 Sulfates or sulfites of sodium, potassium, or alkali metals in general

C02F 001/22 Treatment of water, waste water, or sewage - by freezing

Event Publications

19 December 2002 Complete Application Filed

  Priority application(s): 09/896,806 29.06.01 US

15 May 2003 Application Open to Public Inspection

  Published as AU-A-2002308457

18 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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