Method for recovering crude 1,3-butadiene by extractive distillation from A C4 cut

Details for Australian Patent Application No. 2002244706 (hide)

Owner BASF Aktiengesellschaft

Inventors Pahl, Melanie; Kindler, Klaus; Bohner, Gerd; Kaibel, Gerd

Agent Watermark

Pub. Number AU-B-2002244706

PCT Pub. Number WO2002/062733

Priority 101 05 660.5 08.02.01 DE

Filing date 6 February 2002

Wipo publication date 19 August 2002

Acceptance publication date 4 January 2007

International Classifications

C07C 11/167 (2006.01) Acyclic unsaturated hydrocarbons

B01D 3/40 (2006.01) Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

C07C 7/08 (2006.01) Purification, separation orstabilisation of hydrocarbons

Event Publications

13 February 2003 Application Open to Public Inspection

  Published as AU-B-2002244706

4 January 2007 Application Accepted

  Published as AU-B-2002244706

25 January 2007 Corrigenda

  Applications Accepted - Name Index Under the name BASF Aktiengesellschaft ,Application No. 2002244706 ,under INID (54) ,correct the invention title to Method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut

3 May 2007 Standard Patent Sealed

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