公开(公告)号：BRPI0418267A

公开(公告)日：2007-05-02

申请号：BRPI0418267

申请日：2004-12-30

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  SCHINDLER G TZ-PETER ,  BRODHAGEN ANDREAS ,  CRONE SVEN ,  BENFER REGINA ,  SIGL MARCUS ,  DUDA MARK

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The disclosure involves a process for the preparation of butadiene and 1-butene. The process includes at least a first catalytic dehydrogenation of n-butane to obtain a gas stream which is followed by at least a second oxidative dehydrogenation to form a second gas stream. The second gas stream is then subjected to distillation and isomeration steps to obtain butadiene and 1-butene.

公开(公告)号：CA2598322A1

公开(公告)日：2006-08-31

申请号：CA2598322

申请日：2006-02-24

Applicant: BASF AG

Inventor： SIGL MARCUS ,  SCHUBERT MARKUS ,  STEPHAN JURGEN ,  POPLOW FRANK

IPC: C07C6/04 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09

Abstract: Preparation of an ethene stream (C 2), a propene stream (C 3), an isobutene and optionally a 4C-olefin stream (C 4), a 2-methyl-2-butene and optionally 2-butene stream (C 5), and optionally other hydrocarbons containing stream (C x), optionally several separate components containing streams, comprises contacting a C4-hydrocarbon stream with ethene in a metathesis step; and separating the streams. Preparation of an ethene stream (C 2), a propene stream (C 3), an isobutene and optionally 4C olefin stream (C 4), a 2-methyl-2-butene and optionally 2-butene stream (C 5), and optionally other hydrocarbons containing stream (C x), optionally several separate components containing streams, comprises: (A) a metathesis step, in which a C4-hydrocarbon stream, containing at least 2-butene (15 wt.%), at least isobutene (5 wt.%) and 1-butene (less than 5 wt.%) (feed stream), is contacted with ethene in the presence of usual metathesis catalysts; and (B) separation of the streams (C2, C3, C4 and optionally Cx) from the obtained hydrocarbon stream, with the stream (C5) completely or partially led back to the metathesis step. Independent claims are included for methods for preparing feed stream, comprising subjecting naphtha or other hydrocarbon compounds to steam cracking or fluid catalytic cracking (FCC)-process, or dehydrating butane containing hydrocarbon stream and followed by purifying the obtained C4-olefin-mixture containing isobutene, 2-butene, butadiene, optionally butyne and optionally 1-butene, and removing the obtained stream of C4-olefin-mixture; and removing butadiene and butyne by means of selective hydrogenation to butene or butane hydride, or butadiene and butyne by extractive distillation of the obtained C4-olefin-mixture (raffinate I), where the content of 1,3-butadiene is at a maximum of 1000 wt. ppm.

公开(公告)号：AU2003250142A1

公开(公告)日：2004-02-25

申请号：AU2003250142

申请日：2003-07-23

Applicant: BASF AG

Inventor： SIGL MARCUS ,  SEVERIN ANKE ,  KEHRER JENS

IPC: B01J23/745 ,  C07C67/26 ,  C07C69/54

公开(公告)号：AU2002361017A1

公开(公告)日：2003-06-17

申请号：AU2002361017

申请日：2002-12-05

Applicant: BASF AG

Inventor： DOBLER WALTER ,  HAAKE MATHIAS ,  SIGL MARCUS ,  MILLER CHRISTIAN

IPC: B01D3/26 ,  B01D3/00 ,  B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  B01J8/12 ,  B01J19/24 ,  B01J19/32 ,  B01J21/04 ,  B01J23/10 ,  B01J23/92 ,  B01J35/02 ,  B01J38/64 ,  B01J38/66 ,  C07B41/06 ,  C07B61/00 ,  C07C45/72 ,  C07C45/74 ,  C07C49/203