公开(公告)号：DK1366005T3

公开(公告)日：2007-07-30

申请号：DK02712897

申请日：2002-02-06

Applicant: BASF AG

Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

IPC: C07C11/167 ,  B01D3/40 ,  C07C7/08

Abstract: A process for recovering crude 1,3-butadiene from a C 4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.

公开(公告)号：AU2001267419B2

公开(公告)日：2006-08-03

申请号：AU2001267419

申请日：2001-05-09

Applicant: BASF AG

Inventor： PAHL MELANIE ,  KINDLER KLAUS ,  MEYER GERALD ,  HILL THOMAS ,  ADRIAN TILL ,  BOHNER GERD ,  KAIBEL GERD ,  PICKENACKER KARIN

IPC: C07C7/00 ,  C07C7/08 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C11/167 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: In a process for the work-up of a C4 fraction, comprising the process steps Extractive distillation (I), Selective hydrogenation over a heterogeneous catalyst (II), a crude 1,3-butadiene stream being obtained following process steps (I) and (II) and Distillation of the crude 1,3-butadiene stream for isolating pure 1,3-butadiene (III), the process steps I and II are carried out in a single column or in thermally coupled columns and the process step III is carried out in a second column.

公开(公告)号：DE50005305D1

公开(公告)日：2004-03-25

申请号：DE50005305

申请日：2000-08-07

Applicant: BASF AG

Inventor： KIEFER DR ,  BOHNER GERD ,  STEGMAIER DR ,  GARBE GUNTER

IPC: C01B21/36

公开(公告)号：CA2414989A1

公开(公告)日：2003-01-02

申请号：CA2414989

申请日：2001-07-02

Applicant: BASF AG

Inventor： SCHWAB EKKEHARD ,  STEINBRENNER ULRICH ,  LINDEN GERD ,  COX GERHARD ,  TENTEN ANDREAS ,  BOHNER GERD ,  SIGWART CHRISTOPH ,  HIBST HARTMUT ,  FISCHER ROLF-HARTMUTH ,  HESSE MICHAEL ,  HAUBNER MARTIN ,  NARBESHUBER THOMAS

IPC: C08G65/10 ,  B01J21/06 ,  B01J23/28 ,  B01J23/30 ,  B01J27/188 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  C08G65/20 ,  C08G65/26 ,  B01J23/20 ,  B01J23/24

Abstract: The invention relates to a catalyst which contains a catalytically active quantity of at least one oxygen-containing molybdenum and/or wolfram compound on an oxidic support material and which has been calcinated at temperatures of 400 to 900° C. after the precursor compound of the catalytically active compounds have been applied to the support material or to a support material precursor. The transport pores for this catalyst each have a diameter of >25 nm and a volume of at least 50 mm /g. The catalyst contains x mumol (wolfram and/or molybdenum)/m molybdenum and/or wolfram, with 10.1 /g. Catalysts of this type are characterized by an acidity of at least 70 mumol/g at pKs

公开(公告)号：DE10032266A1

公开(公告)日：2002-01-17

申请号：DE10032266

申请日：2000-07-03

Applicant: BASF AG

Inventor： BOHNER GERD ,  DOMSCHKE THOMAS ,  FISCHER ROLF HARTMUTH ,  HAUBNER MARTIN ,  SIGWART CHRISTOPH ,  STEINBRENNER ULRICH ,  TRAGUT CHRISTIAN

IPC: C08G65/20 ,  C08G65/30 ,  C08G65/32 ,  C07C41/01 ,  C07C43/10 ,  C07C41/58

Abstract: The invention relates to a method for the single-step production of polytetrahydrofuran and/or tetrahydrofuran copolymers having an average molecular weight of 650 to 5000 daltons by polymerizing tetrahydrofuran on an acidic heterogeneous catalyst in the presence of at least one telogen and/or comonomer of the group of the alpha, omega diols, water, polytetrahydrofuran having a molecular weight of 200 to 700 daltons and/or of the cyclic ethers, characterized by a) removing the suspended and/or dissolved catalyst components and/or secondary products of the catalyst contained in the polymerization product, b) carrying out a separation in at least one distillation step from the resulting catalyst-free polymerization product to give a distillation product that contains the polymerization product and at least one tetrahydrofuran fraction, and returning at least part of the tetrahydrofuran fraction to the polymerization, and c) removing from the distillation residue of processing step b) the low-molecular polytetrahydrofuran and/or tetrahydrofuran copolymers that have an average molecular weight of 200 to 700 daltons, and obtaining a polytetrahydrofuran and/or tetrahydrofuran copolymer that has an average molecular weight of 650 to 5000 daltons.

公开(公告)号：AU8193701A

公开(公告)日：2002-01-14

申请号：AU8193701

申请日：2001-07-02

Applicant: BASF AG

Inventor： STEINBRENNER ULRICH ,  NARBESHUBER THOMAS ,  HAUBNER MARTIN ,  SIGWART CHRISTOPH ,  LINDEN GERD ,  COX GERHARD ,  FISCHER ROLF-HARTMUTH ,  HESSE MICHAEL ,  BOHNER GERD ,  HIBST HARTMUT ,  SCHWAB EKKEHARD ,  TENTEN ANDREAS

IPC: C08G65/10 ,  B01J21/06 ,  B01J23/28 ,  B01J23/30 ,  B01J27/188 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  C08G65/20 ,  C08G65/26 ,  B01J23/20 ,  B01J23/24

Abstract: The invention relates to a catalyst which contains a catalytically active quantity of at least one oxygen-containing molybdenum and/or wolfram compound on an oxidic support material and which has been calcinated at temperatures of 400 to 900° C. after the precursor compound of the catalytically active compounds have been applied to the support material or to a support material precursor. The transport pores for this catalyst each have a diameter of >25 nm and a volume of at least 50 mm /g. The catalyst contains x mumol (wolfram and/or molybdenum)/m molybdenum and/or wolfram, with 10.1 /g. Catalysts of this type are characterized by an acidity of at least 70 mumol/g at pKs

公开(公告)号：HU226850B1

公开(公告)日：2009-12-28

申请号：HU0302870

申请日：2002-02-06

Applicant: BASF AG

Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

IPC: C07C11/167 ,  B01D3/40 ,  C07C7/08

Abstract: A process for recovering crude 1,3-butadiene from a C 4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.

公开(公告)号：CA2408325C

公开(公告)日：2009-08-11

申请号：CA2408325

申请日：2001-05-09

Applicant: BASF AG

Inventor： PICKENACKER KARIN ,  ADRIAN TILL ,  PAHL MELANIE ,  HILL THOMAS ,  KINDLER KLAUS ,  BOHNER GERD ,  MEYER GERALD ,  KAIBEL GERD

IPC: C07C7/08 ,  C07C11/167 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C7/163 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: The invention relates to a method for treating a C4 fraction, comprising the following steps: extractive distillation (I), selective hydrogenation on a heterogeneous catalyst (II), a stream of crude 1,3-butadiene resulting from steps (I) and (II); and distillation of said stream of crude 1,3-butadiene i n order to obtain pure 1,3-butadiene (III). Steps I and II take place in a single column or in thermally coupled columns and step III is carried out in a second column.

公开(公告)号：DE50113177D1

公开(公告)日：2007-12-06

申请号：DE50113177

申请日：2001-11-15

Applicant: BASF AG

Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

IPC: C07C11/167 ,  B01D3/14 ,  C07C7/04

Abstract: A process for obtaining pure 1,3-butadiene from crude 1,3-butadiene by distillation is carried out in a dividing wall column in which a dividing wall is located in the longitudinal direction of the column to form an upper common column region, a lower common column region, a feed section and an offtake section.

公开(公告)号：DK1282586T3

公开(公告)日：2007-03-19

申请号：DK01945105

申请日：2001-05-09

Applicant: BASF AG

Inventor： ADRIAN TILL ,  PICKENAECKER KARIN ,  MEYER GERALD ,  KAIBEL GERD ,  KINDLER KLAUS ,  HILL THOMAS ,  BOHNER GERD ,  PAHL MELANIE

IPC: C07C7/08 ,  C07C11/167 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C7/163 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: In a process for the work-up of a C4 fraction, comprising the process steps Extractive distillation (I), Selective hydrogenation over a heterogeneous catalyst (II), a crude 1,3-butadiene stream being obtained following process steps (I) and (II) and Distillation of the crude 1,3-butadiene stream for isolating pure 1,3-butadiene (III), the process steps I and II are carried out in a single column or in thermally coupled columns and the process step III is carried out in a second column.