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公开(公告)号：AU2003296640A1
公开(公告)日：2004-06-30
申请号：AU2003296640
申请日：2003-12-11
Applicant: BASF AG
Inventor： HEIDA BERND
Abstract: A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column comprises carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region and a second region with a lower common region. A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column (I) comprises: (a) carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region (A1) and a second region (A2) with a lower common region; (b) feeding the reaction mixture to the first region (A1) and withdrawal of a first head stream (B1) from (A1) and withdrawal of a second head stream (B2) from the second region (A2) having predefined specifications; (c) addition of the selective solvent to the upper part of the second region (A1) and/or the upper part of second region (A2) whereby the amount of solvent fed to regions (A) and (A2) is adjusted such that the pre-defined specifications for the head streams (B1) and (B2) are maintained. An Independent claim is included for the partition wall column (I).
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公开(公告)号：AU2003250141A1
公开(公告)日：2004-02-16
申请号：AU2003250141
申请日：2003-07-23
Applicant: BASF AG
Inventor： KINDLER KLAUS , HEIDA BERND , HILL THOMAS
IPC: C07C7/08 , C07C11/167
Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C 4 fraction useing a selective solvent and the hydrocarbons from the fraction C 4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition. The stream taken off from the top of the first distillation column is fed to a second distillation column and is separated into a steam which is taken off at the top and comprises propyne, possibly further low boilers and possibly water and a bottom stream comprising pure 1,3-butadiene in the second distillation column.
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公开(公告)号：CA2493080A1
公开(公告)日：2004-02-05
申请号：CA2493080
申请日：2003-07-23
Applicant: BASF AG
Inventor： HILL THOMAS , KINDLER KLAUS , HEIDA BERND
IPC: C07C7/08 , C07C11/167
Abstract: The invention relates to a continuous method for the separation of a mixture of hydrocarbons, obtained by extractive distillation of a C4 fraction (C4) with a selective solvent (LM) and comprising the hydrocarbons from the C4 fraction (C4), which are more soluble in the selective solvent (LM) than butane or butene. The mixture is fed to a first distillation column (K I), i n which said mixture is separated into a top stream (K I-K), comprising 1,3- butadiene, propyne, optionally further low boilers and optionally water and a bottom stream (K I-S), comprising 1,3-butadiene, 1,2-butadiene, acetylene an d optionally further high boilers, whereby the proportion of 1,3-butadiene in the bottom stream (K I-S) of the distillation column (K I) is regulated such as to be at least high enough to dilute the acetylene from that region with a risk of spontaneous decomposition. The top stream (K I - K) from the first distillation column (K I) is fed to a second distillation column (K II) and separated in the second distillation column (K II) into a top stream (K II-K ), comprising propyne, optionally further low boilers and optionally water and a bottom stream (K II-S), comprising pure 1,3-butadiene.
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公开(公告)号：AU2003233194A1
公开(公告)日：2003-11-17
申请号：AU2003233194
申请日：2003-04-29
Applicant: BASF AG
Inventor： ADRIAN TILL , HEIDA BERND , KINDLER KLAUS
Abstract: A continuous process for isolating butenes from a C 4 fraction comprising butanes, butenes and other C 3 -C 5 -hydrocarbons by extractive distillation using a selective solvent (LM), comprising a first process stage I in a scrubbing zone (E) and a second process stage II in a degassing zone (A), wherein the liquid or a substream of the liquid is taken off from the degassing zone (A) at a theoretical plate located one or more theoretical plates below the feed point for the bottom stream (LM/C 4 H 8 ) from the scrubbing zone (E), heated and/or vaporized by indirect heat exchange with the hot bottom stream (LM) from the degassing zone (A) and returned to the degassing zone (A) at the same theoretical plate or above this, with the theoretical plate from which the liquid or substream of liquid is taken off being selected so that the total energy requirement in the process stages I and II is minimized, is proposed.
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公开(公告)号：DE59708776D1
公开(公告)日：2003-01-02
申请号：DE59708776
申请日：1997-08-04
Applicant: BASF AG
Inventor： HEIDA BERND , THIESSEN FRITZ , HAMMON ULRICH
IPC: B01D17/025 , B01D17/02 , C07C51/25 , C07C57/04 , C07C57/055 , C07C57/07
Abstract: In a separator (11), designed to separate mixtures composed of liquids of various densities, the inflow (12) of the liquid mixture is so arranged and so designed that the inflowing liquid mixture hits an inner wall(16), located opposite the separator outflows, at an angle alpha of 0 DEG - 45 DEG relative to the normal to the container wall. Such a separator can be used in the manufacturing process for acrylic acid through catalytic vapour-phase oxidation of propene.
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Patent Agency Ranking
公开(公告)号：BR9711023A
公开(公告)日：1999-08-17
申请号：BR9711023
申请日：1997-08-01
Applicant: BASF AG
Inventor： HEIDA BERND , THIESSEN FRITZ , HAMMON ULRICH , DAMS ALBRECHT
Abstract: PCT No. PCT/EP97/04214 Sec. 371 Date Feb. 4, 1999 Sec. 102(e) Date Feb. 4, 1999 PCT Filed Aug. 1, 1997 PCT Pub. No. WO98/05622 PCT Pub. Date Feb. 12, 1998A process for isolating acrylic acid forward during catalytic gas phase oxidation of propene, which entails separating acrylic acid from the gas phase oxidation reaction using an absorbent containing biphenyl, diphenyl ether or dimethyl phthalate; and extracting acrylic acid from acid water of the gas phase reaction with a solvent containing biphenyl, diphenyl ether or dimethyl phthalate.
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公开(公告)号：DE19633532A1
公开(公告)日：1998-02-26
申请号：DE19633532
申请日：1996-08-20
Applicant: BASF AG
Inventor： HEIDA BERND , PROLL THEO DR , ARMBRUSTER HARALD DR
Abstract: A process is disclosed for extracting substituted or non-substituted, saturated or unsaturated, preferably C1-C6 dicarboxylic acids from an aqueous solution. The aqueous solution is thoroughly mixed with an extraction agent, the extraction agent charged with dicarboxylic acid is separated from the aqueous solution and dicarboxylic acid is separated from the extraction agent. The extraction agent contains more than 10 wt %, preferably 20 to 60 wt %, of one or several amines.
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公开(公告)号：CA2262594A1
公开(公告)日：1998-02-12
申请号：CA2262594
申请日：1997-08-01
Applicant: BASF AG
Inventor： HEIDA BERND , HAMMON ULRICH , THIESSEN FRITZ , DAMS ALBRECHT
Abstract: In the production process for acrylic acid through catalytic vapour-phase oxidat ion of propene, acrylic acid is separated from the vapour-phase oxidation reaction mixture by means of an absorbing agent containin g diphenyl, diphenyl ether or dimethyl phthalate and is also extracted from the vapour-phase oxidation acidic water by means of a solven t containing diphenyl, diphenyl ether or dimethyl phthalate.
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公开(公告)号：DE3415141A1
公开(公告)日：1985-10-31
申请号：DE3415141
申请日：1984-04-21
Applicant: BASF AG
Inventor： BERNING WILFRIED DR , SIEGEL HARDO DR , HEIDA BERND , WICKENHAEUSER GERHARD DR
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公开(公告)号：CA2493080C
公开(公告)日：2013-04-02
申请号：CA2493080
申请日：2003-07-23
Applicant: BASF AG
Inventor： HILL THOMAS , KINDLER KLAUS , HEIDA BERND
IPC: C07C7/08 , C07C11/167
Abstract: The invention relates to a continuous method for the separation of a mixture of hydrocarbons, obtained by extractive distillation of a C4 fraction (C4) with a selective solvent (LM) and comprising the hydrocarbons from the C4 fraction (C4), which are more soluble in the selective solvent (LM) than butane or butene. The mixture is fed to a first distillation column (K I), in which said mixture is separated into a top stream (K I-K), comprising 1,3-butadiene, propyne, optionally further low boilers and optionally water and a bottom stream (K I-S), comprising 1,3-butadiene, 1,2-butadiene, acetylene and optionally further high boilers, whereby the proportion of 1,3-butadiene in the bottom stream (K I-S) of the distillation column (K I) is regulated such as to be at least high enough to dilute the acetylene from that region with a risk of spontaneous decomposition. The top stream (K I - K) from the first distillation column (K I) is fed to a second distillation column (K II) and separated in the second distillation column (K II) into a top stream (K II-K), comprising propyne, optionally further low boilers and optionally water and a bottom stream (K II-S), comprising pure 1,3-butadiene.
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