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：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：DE19818810A1

公开(公告)日：1999-10-28

申请号：DE19818810

申请日：1998-04-27

Applicant: BASF AG

Inventor： KINDLER KLAUS ,  PUHL HUBERT

IPC: C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  C07C11/16 ,  C07D207/38

Abstract: Separation of a 4 carbon (C) hydrocarbon mixture (I) involves extractive distillation with N-methyl-2-pyrrolidinone (NMP) into 1,3-butadiene, butene and butane fractions and fraction(s) containing other 4 C hydrocarbons (II). The stages used comprise; (1) complete absorption of 1,3-butadiene and (II) from gaseous (I) with NMP and separating the solution (III) from a gas stream (IV) of unabsorbed butenes and butanes; (2) desorption of butadiene from (III) and separation from the liquid phase (V) containing most of (II); (3) desorption of (II) in one or more fractions from (V); (4) complete absorption of butenes in (IV) in NMP from stage (3) and separating the unabsorbed butanes; (5) desorbing the butenes from the solution; and (6) recycling the NMP free from stage (5) to one of the extraction zones. Each desorption zone operates at a lower pressure and/or higher temperature than the immediately preceding absorption or desorption zone. Separation of a 4 carbon (C) hydrocarbon mixture (I) involves extractive distillation with N-methyl-2-pyrrolidinone (NMP) into >= 4 fractions comprising (a) a 1,3-butadiene fraction, (b) a butene fraction, (c) a butane fraction and (d) fraction(s) containing other 4 C hydrocarbons (II). The stages used comprise; (1) complete absorption of 1,3-butadiene and (II) from gaseous (I) with NMP and separating the solution (III) from a gas stream (IV) of unabsorbed butenes and butanes; (2) desorption of butadiene from (III) and separation from the liquid phase (V) containing most of (II); (3) desorption of (II) in one or more fractions from (V) and separation from NMP free from 4 C hydrocarbons; (4) complete absorption of butenes in (IV) in NMP from stage (3) and separating the unabsorbed butanes and solution (VI); (5) desorbing the butenes from (VI) and separation from NMP free from 4 C hydrocarbons; and (6) recycling the NMP from stage (5) to one of the extraction zones. Each desorption zone operates at a lower pressure and/or higher temperature than the immediately preceding absorption or desorption zone.

公开(公告)号：MY121064A

公开(公告)日：2005-12-30

申请号：MYPI9901647

申请日：1999-04-27

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, BU-TENES, BUTANES AND OTHER C4-HYDROCARBONS IS SEPARATED INTO ATLEAST 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-PYRROLIDINONEOR AN AQUEOUS SOLUTION OF N-ME''THYL-2-PYRROLIDINONE (NMP).(FIG. 2)

公开(公告)号：ES2203119T3

公开(公告)日：2004-04-01

申请号：ES99917975

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：AT243178T

公开(公告)日：2003-07-15

申请号：AT99917975

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).