-
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.
-
公开(公告)号：SA1102B1
公开(公告)日：2006-08-12
申请号：SA99200783
申请日：1999-11-30
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BEBLING BERND , HASSE HANS , VANSANT FRANS
Abstract: الملخص: عمليةللتقطيرالاستخلاصلاحاديايثيلينجيكول monoethylene glycol عاليالنقاءمنناتجالتحللالمائيلاكسيدالايثيلين ethylene oxide بواسطةنزعالماءبالضغط،ويفضلفيمجموعةمتواحدة،مننزعالماءبالتفريغوالتقطيرالمنقىالتالي،حيثيتماثناءنزعالماءبالتفريغحسبتيارمائييحتويعلىاحاديايثيلينجيكول monoethylene glycol بتركيزاقلمن 1% بالوزن،ويفضلاقلمن 0,1% بالوزن،ومركباتمتوسطةالغليانومركباتمنخفضةالغليان . ويتمازالةالتيارالمائيالذيتمسحبةاختياريابعدالمعالجةمرةأخرىمنالنظام.20 ،
-
公开(公告)号：DE50109620D1
公开(公告)日：2006-06-01
申请号：DE50109620
申请日：2001-01-24
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , WAGNER GERHARD , ADRIAN TILL
IPC: C07C53/02 , C07C51/09 , C07C51/44 , C07C51/48 , C22C14/00 , C22C19/05 , C22C38/00 , C22C38/42 , C22C38/44
Abstract: The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials. The extractant employed is a liquid of the general formula I where the radicals R 1 and R 2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R 1 and R 2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R 3 is hydrogen or a C 1 -C 4 -alkyl group. The apparatus has a synthesis reactor ( 6 ), a hydrolysis reactor ( 1 ), three distillation devices ( 2,4,5 ) and an extraction device ( 3 ).
-
公开(公告)号：DE50107981D1
公开(公告)日：2005-12-15
申请号：DE50107981
申请日：2001-01-24
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , WAGNER GERHARD , ADRIAN TILL
Abstract: The invention relates to a process for the preparation of anhydrous or substantially anhydrous formic acid. The process has the special feature that a liquid of the general formula Iwhere the radicals R and R are alkyl, cycloalkyl, aryl or aralkyl groups, or R and R jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R is hydrogen or a C1-C4-alkyl group, employed as extractant is also employed as washing liquid for the offgases produced in the process.
-
公开(公告)号：PL375377A1
公开(公告)日：2005-11-28
申请号：PL37537703
申请日：2003-07-22
Applicant: BASF AG
Inventor： ADRIAN TILL , HILL THOMAS , KINDLER KLAUS , HEIDA BERND
Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).
-
Patent Agency Ranking
公开(公告)号：BR0312830A
公开(公告)日：2005-04-26
申请号：BR0312830
申请日：2003-07-22
Applicant: BASF AG
Inventor： ADRIAN TILL , HILLMER THOMAS , KINDLER KLAUS , HEIDA BERND
Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).
-
公开(公告)号：DE50103216D1
公开(公告)日：2004-09-16
申请号：DE50103216
申请日：2001-01-12
Applicant: BASF AG
Inventor： AUER HEINZ , BESSLING BERND , HAMMER HANS , HASSE HANS , SAUER FRIEDRICH , VICARI MAXIMILIAN , ADRIAN TILL
Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that-before the hydrolysis of the methyl formate-the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.
-
公开(公告)号：ES2212671T3
公开(公告)日：2004-07-16
申请号：ES99969405
申请日：1999-09-21
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS
Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.
-
公开(公告)号：ES2194518T3
公开(公告)日：2003-11-16
申请号：ES99952457
申请日：1999-09-21
Applicant: BASF AG
Inventor： ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS , THEIS GERHARD
Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis product of ethylene oxide by pressure dewatering, vacuum dewatering and subsequent purifying distillation, which includes the pressure dewatering columns or at least the first pressure dewatering column of the battery (2, 3, 4) having a stripping section with at least one separating stage, preferably with from 2 to 10 separating stages, particularly preferably with from 3 to 6 stages, and a portion of the overhead stream of the pressure dewatering column(s) (2, 3, 4) having a stripping section being removed from the system.
-
公开(公告)号：AU2003210379A1
公开(公告)日：2003-09-16
申请号：AU2003210379
申请日：2003-02-28
Applicant: BASF AG
Inventor： PESCHEL WERNER , ADRIAN TILL , RUST HARALD , BOTTCHER ARND , HILL THOMAS , MULLER ULRICH , PAPP RAINER
Abstract: A process for preparing cyclohexanol from benzene by: a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst, and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises: carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end, and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.
-
-
-
-
-
-
-
-
-
Search Results
90
records
(took 0.024 seconds)
