METHOD FOR ALUMINUM RECOVERY FROM AL-VAPOR AND ALU- MINUM SUBOXIDE CONTAINING OFF-GASES PRODUCED BY CARBOTHERMIC REDUCTION OF ALUMINA

Details for Australian Patent Application No. 2001288624 (hide)

Owner ALCOA INC. ELKEM ASA

Inventors LINDSTAD, Tor

Pub. Number AU-A-2001288624

PCT Pub. Number WO2002/095079

Priority 09/862,196 21.05.01 US

Filing date 4 September 2001

Wipo publication date 3 December 2002

International Classifications

B01D 053/64 Separation of gases or vapours

C22B 005/06 General processes of reducing to metals

B01D 053/34 Separation of gases or vapours - Chemical or biological purification of waste gases

B01D 053/62 Separation of gases or vapours - Carbon oxides

C22B 005/10 General processes of reducing to metals

C01B 031/30 Carbon

C22B 021/02 Obtaining aluminium

Event Publications

8 May 2003 Application Open to Public Inspection

  Published as AU-A-2001288624

11 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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