公开(公告)号：BR8001594A

公开(公告)日：1980-11-18

申请号：BR8001594

申请日：1980-03-18

Applicant: BASF AG

Inventor： VOLKAMER K ,  SCHNEIDER K ,  WELTZ H ,  LINDNER A ,  BROELLOS K ,  WAGNER U

IPC: C07C1/00 ,  C07C7/08 ,  C07C11/12 ,  C07C67/00

Abstract: A process for isolating a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises (a) from 1 to 99 percent by weight of an N-alkyl-substituted lower aliphatic acid amide or of an N-alkyl-substituted alicyclic acid amide having 5 ring members and (b) from 1 to 99 percent by weight of an aliphatic or alicyclic ether boiling at from 30 DEG C. to 200 DEG C.

公开(公告)号：BR8001582A

公开(公告)日：1980-11-18

申请号：BR8001582

申请日：1980-03-17

Applicant: BASF AG

Inventor： WEITZ H ,  BROELLOS K ,  SCHNEIDER K ,  LINDNER A ,  WAGNER U ,  VOLKAMER K

IPC: C07C1/00 ,  C07C7/08 ,  C07C11/12 ,  C07C67/00