METHOD FOR THE CONTINUOUS PURIFICATION BY DISTILLATION OF 1,2-PROPYLENE GLYCOL THAT ACCUMULATES DURING THE SYNTHESIS OF PROPYLENE OXIDE WITHOUT COUPLING PRODUCTS

Details for Australian Patent Application No. 2003254562 (hide)

Owner BASF AKTIENGESELLSCHAFT

Inventors BASSLER, Peter; GOBBEL, HansGeorg; TELES, Joaquim, Henrique; RUDOLF, Peter

Pub. Number AU-A-2003254562

PCT Number PCT/EP03/07985

PCT Pub. Number WO2004/009571

Priority 102 33 382.3 23.07.02 DE

Filing date 22 July 2003

Wipo publication date 9 February 2004

International Classifications

C07D 301/32 Heterocyclic compounds having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as ring hetero atoms

B01D 003/32 Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

Event Publications

30 October 2003 Complete Application Filed

  Priority application(s): 102 33 382.3 23.07.02 DE

18 March 2004 Application Open to Public Inspection

  Published as AU-A-2003254562

5 May 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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