公开(公告)号：AT66447T

公开(公告)日：1991-09-15

申请号：AT88104604

申请日：1988-03-23

Applicant: BASF AG

Inventor： KAIBEL GERD DR ,  HEFNER WERNER DR ,  KELLER PETER DR ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

公开(公告)号：ES2023968B3

公开(公告)日：1992-02-16

申请号：ES88104604

申请日：1988-03-23

Applicant: BASF AG

Inventor： KAIBEL GERD ,  HEFNER WERNER ,  KELLER PETER ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

公开(公告)号：DE3864295D1

公开(公告)日：1991-09-26

申请号：DE3864295

申请日：1988-03-23

Applicant: BASF AG

Inventor： KAIBEL GERD DR ,  HEFNER WERNER DR ,  KELLER PETER DR ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

Abstract: Recovery of 1,3-butadiene (I) from a C4 hydrocarbon stream contg. (I) and small amts. of propyne and C5 hydrocarbons is effected by (a) subjecting the feed to extractive distn. with a selective solvent to obtain a crude butadiene stream, (b) feeding the crude butadiene vapour into a 1st distn. column, (c) passing an overhead liq. stream contg. (I) and lighter impurities from the 1st column to the middle of a 2nd column, (d) passing a liq. side stream contg. (I) and heavier impurities from the stripper section of the 1st column to the bottom of the 2nd column, (e) withdrawing a heavy impurity bottoms stream from the 1st column, (f) withdrawing a light impurity overhead stream from the 2nd column, (g) withdrawing (I) from the stripper section of the 2nd column, and (h) recycling the bottoms stream from the 2nd column to the 1st column in the vicinity of the side stream outlet.

公开(公告)号：BR8801270A

公开(公告)日：1988-10-25

申请号：BR8801270

申请日：1988-03-21

Applicant: BASF AG

Inventor： KAIBEL GERD ,  HEFNER WERNER ,  KELLER PETER ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

Abstract: 1,3-Butadiene is isolated from a C4-hydrocarbon mixture containing 1,3-butadiene and small amount of propyne and C5-hydrocarbons by extractive distillation with a selective solvent and subsequent distillative purification of the crude 1,3-butadiene obtained in the extractive distillation.

公开(公告)号：DE3710434A1

公开(公告)日：1988-10-06

申请号：DE3710434

申请日：1987-03-28

Applicant: BASF AG

Inventor： KAIBEL GERD ,  HEFNER WERNER DR ,  KELLER PETER DR ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

Abstract: 1,3-Butadiene is isolated from a C4-hydrocarbon mixture containing 1,3-butadiene and small amount of propyne and C5-hydrocarbons by extractive distillation with a selective solvent and subsequent distillative purification of the crude 1,3-butadiene obtained in the extractive distillation.