公开(公告)号：AU2002217035B2

公开(公告)日：2006-09-28

申请号：AU2002217035

申请日：2001-11-15

Applicant: BASF AG

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

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

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：SA1007B1

公开(公告)日：2006-07-30

申请号：SA99200254

申请日：1999-06-19

Applicant: BASF AG

Inventor： KINDLER KLAUS ,  PUHL HUBERT

IPC: C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  C07C11/16

Abstract: الملخص: خليطمن C4-hydrocarbon يحتويجوهرياعلى butanes ،butenes ،1,3-butadieneأخرىينفصلإلىأربعةأجزاءfractions علىالأقل،أ) الجزء a) fraction) يحتويجوهرياعلى -1,3 butadiene،ب) الجزء b) fraction) يحتويجوهرياعلى butenes،ج) الجزء c) fraction) يحتويجوهرياعلى butanes ود) جزء fraction واحدأوأكثر (d) يحتويجوهرياعلى 1,3-butadiene وC4-hydrocarbons أخرى،بواسطةتقطيراستخلاصي extractive distillation بواسطة N-methyl-2-pyrrolidinone أومحلولمائي NMP) N-methyl-2-pyrrolidinone).،٤ اشكال

公开(公告)号：PL364162A1

公开(公告)日：2004-12-13

申请号：PL36416202

申请日：2002-02-06

Applicant: BASF AG

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

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

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：BR0206867A

公开(公告)日：2004-01-20

申请号：BR0206867

申请日：2002-02-06

Applicant: BASF AG

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

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

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：CZ20032156A3

公开(公告)日：2003-11-12

申请号：CZ20032156

申请日：2002-02-06

Applicant: BASF AG

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

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

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：HU0301850A2

公开(公告)日：2003-08-28

申请号：HU0301850

申请日：2001-11-15

Applicant: BASF AG

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

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

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：DK1076638T3

公开(公告)日：2003-07-14

申请号：DK99917975

申请日：1999-04-13

Applicant: BASF AG

Inventor： KINDLER KLAUS ,  PUHL HUBERT

IPC: C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  C07C11/16

Abstract: A C4-hydrocarbon mixture essentially containing 1,3-butadiene, butenes, butanes and other C4-hydrocarbons is separated into at least 4 fractions,a) the fraction (a) essentially comprising 1,3-butadiene,b) the fraction (b) essentially comprising butenes,c) the fraction (c) essentially comprising butanes andd) one or more fractions (d) essentially comprising 1,3-butadiene and the other C4-hydrocarbons,by extractive distillation by means of N-methyl-2-pyrrolidinone or an aqueous solution of N-methyl-2-pyrrolidinone (NMP).

公开(公告)号：DE10105660A1

公开(公告)日：2002-08-14

申请号：DE10105660

申请日：2001-02-08

Applicant: BASF AG

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

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

Abstract: The invention relates to a method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut, using a selective solvent in a separation column (TK). In said column, a partition wall (T) is located in the longitudinal direction of the column, forming a first sub-section (A), a second sub-section (B) and a lower common column zone (C). An extractive scrubber column (K) is connected upstream of the separation column.

公开(公告)号：AU1703502A

公开(公告)日：2002-05-27

申请号：AU1703502

申请日：2001-11-15

Applicant: BASF AG

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

IPC: B01D3/14 ,  C07C7/04 ,  C07C11/167 ,  B01D3/28

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：CA2408325A1

公开(公告)日：2001-11-07

申请号：CA2408325

申请日：2001-05-09

Applicant: BASF AG

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

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

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.