公开(公告)号：CA2261617A1

公开(公告)日：1998-02-12

申请号：CA2261617

申请日：1997-08-04

Applicant: BASF AG

Inventor： HEIDA BERND ,  HAMMON ULRICH ,  THIESSEN FRITZ

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~ - 45~ 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.

公开(公告)号：ID17416A

公开(公告)日：1997-12-24

申请号：ID972713

申请日：1997-08-05

Applicant: BASF AG

Inventor： HEIDA BERND ,  THIESSEN FRITZ ,  HAMMON ULRICH ,  DAMS ALBRECHT

IPC: C07C51/25 ,  C07C51/48 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

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.

公开(公告)号：DE3576526D1

公开(公告)日：1990-04-19

申请号：DE3576526

申请日：1985-04-02

Applicant: BASF AG

Inventor： BERNING WILFRIED DR ,  SIEGEL HARDO DR ,  HEIDA BERND ,  WICKENHAEUSER GERHARD DR

IPC: B01D11/04 ,  B01D11/02 ,  C07C51/00 ,  C07C51/48 ,  C07C59/08 ,  C07C67/00 ,  C12P7/56

公开(公告)号：PL207857B1

公开(公告)日：2011-02-28

申请号：PL37746803

申请日：2003-12-11

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: B01D3/40 ,  C07C5/03 ,  C07C7/08

公开(公告)号：AU2005210003B2

公开(公告)日：2010-09-23

申请号：AU2005210003

申请日：2005-02-04

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C7/08

Abstract: 1,3-butadiene is obtained by extractive distillation with a selective solvent from a C4 cut comprising C4 acetylenes as secondary components in a dividing wall column having a bottom evaporator, in which a dividing wall is disposed in the longitudinal direction of the column to form a first subregion, a second subregion and a lower combined column region. The column is disposed upstream of an extractive wash column. The energy input into the dividing wall column via the bottom evaporator is controlled in such a way that a bottom stream containing solvent, C4 acetylenes and 1,3-butadiene restricted such that the loss of 1,3-butadiene is economically acceptable, is drawn off and fed to an acetylenes outgasser where the C4 acetylenes are stripped out overhead and purified solvent is obtained as the bottom stream.

公开(公告)号：AU2003250141B2

公开(公告)日：2009-09-10

申请号：AU2003250141

申请日：2003-07-23

Applicant: BASF AG

Inventor： KINDLER KLAUS ,  HILL THOMAS ,  HEIDA BERND

IPC: C07C7/08

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.

公开(公告)号：ES2288691T3

公开(公告)日：2008-01-16

申请号：ES04763397

申请日：2004-07-22

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C7/08

Abstract: Procedimiento para la separación de una fracción bruta con 4 átomos de carbono, que contiene butanos, butenos, 1, 3-butadieno así como pequeñas cantidades de otros hidrocarburos, entre los cuales se encuentran los acetilenos con 4 átomos de carbono, el 1, 2-butadieno e hidrocarburos con 5 átomos de carbono, mediante destilación con extracción con un disolvente selectivo, alimentándose a una primera columna de destilación con extracción (K I) la fracción bruta con 4 átomos de carbono (1) en la zona central de la misma y el disolvente selectivo (2) se alimenta por encima de la fracción bruta con 4 átomos de carbono (1) y se retira de la primera columna de destilación con extracción (K I), por debajo de la alimentación de la fracción bruta con 4 átomos de carbono (1), una corriente lateral (3), en estado de vapor, que contiene los acetilenos con 4 átomos de carbono y, además, el 1, 3-butadieno, el 1, 2-butadieno, hidrocarburos con 5 átomos de carbono y el disolvente selectivo, eligiéndose la concentración de los acetilenos con 4 átomos de carbono en la corriente lateral (3), en estado de vapor, por debajo del límite de autodestrucción de los mismos, así como una corriente de cabeza (5), que contiene los componentes de la fracción bruta con 4 átomos de carbono, menos solubles en el disolvente selectivo que los acetilenos con 4 átomos de carbono.

公开(公告)号：DE502004004755D1

公开(公告)日：2007-10-04

申请号：DE502004004755

申请日：2004-07-22

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C7/08

Abstract: A process for fractionating a crude C4 fraction comprising butanes, butenes, 1,3-butadiene and small amounts of other hydrocarbons including C4-acetylenes, by extractive distillation using a selective solvent, wherein the crude C4 fraction (1) is fed into the middle region of a first extractive distillation column (K I) and the selective solvent (2) is fed into the column at a point above that at which the crude C4 fraction (1) is introduced and a gaseous side stream (3) which comprises the C4-acetylenes together with predominantly the selective solvent and in which the concentration of the C4-acetylenes is below the spontaneous decomposition limit is taken off from the first extractive distillation column (K I) at a point below the feed point for the crude C4 fraction (1) and an overhead stream (5) comprising the components which are less soluble than the C4-acetylenes in the selective solvent is taken off from the top of the first extractive distillation column, is proposed.

公开(公告)号：MXPA05012516A

公开(公告)日：2006-04-18

申请号：MXPA05012516

申请日：2004-05-19

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C11/167 ,  C07C7/08

Abstract: La invencion se refiere a un metodo para obtener 1,3-butadieno crudo a partir de una fraccion de C4, por medio de la destilacion extractiva, utilizando un disolvente selectivo en una columna de reparto (TK) en la que se arregla un reparto (T) en la direccion longitudinal de la columna, formando una primera region parcial (A), una segunda region parcial (B) y una region comun inferior de la columna (C), una columna de lavado por extraccion (K) se arregla corriente arriba de la columna de reparto. La operacion de la columna de reparto (TK) se ajusta regulando la entrada de energia en esta utilizando un evaporador en la base (V) y por medio del arreglo del numero de etapas de separacion teoricas en la region comun inferior de la columna (C) en tal forma que un flujo de residuos (17) consistente en un disolvente purificado se pueda obtener de la columna de reparto (TK).

公开(公告)号：AU2004240749A1

公开(公告)日：2004-12-02

申请号：AU2004240749

申请日：2004-05-19

Applicant: BASF AG

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

Abstract: A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K), wherein the operation of the dividing wall column (TK) is set by regulation of the energy input into the dividing wall column (TK) via a bottom vaporizer (V) and setting of the number of the theoretical plates in the lower common column region (C) so that a bottom stream (17) consisting of purified solvent is obtained from the dividing wall column (TK), is proposed.