PROCESS FOR RECOVERING RARE EARTH OXIDE FROM WASTE LIQUID CONTAINING RARE EARTH ELEMENT, AND PROCESS FOR PRODUCING RARE EARTH OXIDE USING SAME

Details for Australian Patent Application No. 2003238154 (hide)

Owner SHOWA DENKO K.K.

Inventors IMAI, Fumio; ITO, Katsura; SAEGUSA, Hiroshi

Pub. Number AU-A-2003238154

PCT Number PCT/JP03/07288

PCT Pub. Number WO2003/104149

Priority 2002-288021 30.09.02 JP; 60/416,577 08.10.02 US; 2002-166437 07.06.02 JP; 60/410,285 13.09.02 US

Filing date 9 June 2003

Wipo publication date 22 December 2003

International Classifications

C01F 017/00 Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides

C22B 059/00 Obtaining rare earth metals

Event Publications

11 September 2003 Complete Application Filed

  Priority application(s): 2002-288021 30.09.02 JP; 60/416,577 08.10.02 US; 2002-166437 07.06.02 JP; 60/410,285 13.09.02 US

19 February 2004 Application Open to Public Inspection

  Published as AU-A-2003238154

24 February 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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