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公开(公告)号:BRPI0507129B1
公开(公告)日:2014-10-21
申请号:BRPI0507129
申请日:2005-01-27
Applicant: BASF AG
Inventor: SCHEIDEL JENS , JUNGKAMP TIM , BARTSCH MICHAEL , HADERLEIN GERD , BAUMANN ROBERT , LUYKEN HERMANN
IPC: C07C253/10 , C07C255/07
Abstract: A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene, wherein 1,3-butadiene is reacted with hydrogen cyanide in the presence of at least one catalyst and the stream resulting therefrom is purified distillatively, the bottom temperature during the distillation not exceeding 140° C.
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公开(公告)号:BRPI0507199A
公开(公告)日:2007-06-26
申请号:BRPI0507199
申请日:2005-01-26
Applicant: BASF AG
Inventor: JUNGKAMP TIM , KUNSMANN-KEITEL DAGMAR PASCALE , BARTSCH MICHAEL , HADERLEIN GERD , LUYKEN HERMANN , SCHEIDEL JENS , BAUMANN ROBERT
IPC: C07C253/10 , C07C255/07
Abstract: A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene with hydrogen cyanide over at least one catalyst, wherein the 1,3-butadiene and/or hydrogen cyanide is contacted with at least one microporous solid before the reaction.
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公开(公告)号:BRPI0507197A
公开(公告)日:2007-06-26
申请号:BRPI0507197
申请日:2005-01-27
Applicant: BASF AG
Inventor: JUNGKAMP TIM , BAUMANN ROBERT , BARTSCH MICHAEL , HADERLEIN GERD , LUYKEN HERMANN , SCHEIDEL JENS , AECHTNER TOBIAS , PFAB PETER , DECKERT PETRA , SIEGEL WOLFGANG , BASSLER PETER
IPC: C07C253/10 , C07C255/07
Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.
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公开(公告)号:BRPI0507195A
公开(公告)日:2007-06-26
申请号:BRPI0507195
申请日:2005-01-27
Applicant: BASF AG
Inventor: SCHEIDEL JENS , MILLER CHRISTIAN , BAUMANN ROBERT , JUNGKAMP TIM , BARTSCH MICHAEL , HADERLEIN GERD , LUYKEN HERMANN , SIEGEL WOLFGANG , BASSLER PETER
IPC: C07C253/30 , C07C255/07
Abstract: The invention relates to a method for isomerization of pentene nitrile in an educt flow, wherein isomerization is performed on a homogeneously dissolved catalyst.
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公开(公告)号:ES2270376T3
公开(公告)日:2007-04-01
申请号:ES04727522
申请日:2004-04-15
Applicant: BASF AG
Inventor: BARTSCH MICHAEL , BAUMANN ROBERT , HADERLEIN GERD , FLORES MIGUEL , JUNGKAMP TIM , LUYKEN HERMANN
IPC: C01C3/02 , C01C3/04 , C07C253/00
Abstract: Procedimiento para la deshidratación de ácido cianhídrico mediante destilación, caracterizado porque se destila un ácido cianhídrico crudo que contiene un 50 a un 99, 9 % en peso de HCN, un 0, 1 a un 40 % en peso de agua, un 0 a un 15 % en peso de óxidos de carbono, y en caso dado un 0, 01 a un 1 % en peso de un estabilizador no volátil, a una presión de 1 bar a 2, 5 bar, una temperatura de cola de 100ºC a 130ºC, y una temperatura de cabeza de 25ºC a 54ºC, en ausencia de un estabilizador volátil en una columna de destilación, obteniéndose una corriente de extracción de cabeza que contiene ácido cianhídrico purificado, anhidro, y óxidos de carbono, y una corriente de extracción de cola que contiene agua, y en caso dado el estabilizador poco volátil.
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公开(公告)号:ES2261949T3
公开(公告)日:2006-11-16
申请号:ES03738116
申请日:2003-07-04
Applicant: BASF AG
Inventor: JUNGKAMP TIM , SCHEIDEL JENS , LUYKEN HERMANN , BARTSCH MICHAEL , BAUMANN ROBERT , HADERLEIN GERD
IPC: B01D3/36 , C01G9/04 , F26B5/00 , F26B7/00 , C07C253/34
Abstract: Procedimiento para la eliminación de agua de una mezcla que contiene agua y cloruro de cinc, caracterizado porque dicha mezcla, que contiene agua y cloruro de cinc, se combina con un diluyente aprótico polar, cuyo punto de ebullición, en el caso de formación de no azeótropo del citado diluyente con agua bajo las condiciones de reacción de la destilación citada a continuación, es más elevado que el punto de ebullición de agua, y que se presenta líquido en este punto de ebullición de agua, o que forma un azeótropo o heteroazeótropo con agua bajo las condiciones de presión y temperatura de la destilación citada a continuación, y a la mezcla que contiene agua, cloruro de cinc y el agente diluyente, destilada bajo separación de agua o del citado azeótropo, o del citado heteroazeótropo de esta mezcla, y bajo obtención de una mezcla anhidra, que contiene cloruro de cinc y dicho agente diluyente, empleándose como diluyente aprótico polar un nitrilo alifático con insaturación olefínica, seleccionadoa partir del grupo constituido por 2-cis-pentenonitrilo, 2-trans-pentenonitrilo, 3-cis-pentenonitrilo, 3-trans-pentenonitrilo, 4-pentenonitrilo, E-2-metil-2-butenonitrilo, Z-2-metil-2-butenonitrilo, 2-metil-3-butenonitrilo, o sus mezclas.
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公开(公告)号:DE102005015893A1
公开(公告)日:2006-10-12
申请号:DE102005015893
申请日:2005-04-06
Applicant: BASF AG
Inventor: BARTSCH MICHAEL , HADERLEIN GERD , AECHTNER TOBIAS , SCHEIDEL JENS , DIENES CHRISTIAN , TEMPEL ALEXANDER , HOFRICHTER THORSTEN , WEINLE WERNER
Abstract: A process for preparing biphenols of the general formula I by reaction of monophenols of the general formula II where the radicals R1, R2 and R3 are each, independently of one another, hydrogen, alkyl, aryl or arylalkyl having from 1 to 10 carbon atoms, in the presence of an oxidant in a reactor, wherein a) the reactor comprises no stationary internals which act as baffles, b) a total of not more than 0.6 mol of oxidant is used per one mol of monophenol, and c) the oxidant is introduced either continuously or discontinuously in a plurality of portions over a period of from 10 minutes to 24 hours, with the amount of oxidant introduced per unit time not being constant over the total period of time but instead being varied.
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公开(公告)号:AT330962T
公开(公告)日:2006-07-15
申请号:AT02801308
申请日:2002-10-04
Applicant: BASF AG
Inventor: BARTSCH MICHAEL , BAUMANN ROBERT , KUNSMANN-KEITEL DAGMAR PASCALE , HADERLEIN GERD , JUNGKAMP TIM , ALTMAYER MARCO , SIEGEL WOLFGANG , MOLNAR FERENC
IPC: B01J31/22 , B01J31/18 , C07B61/00 , C07C253/10 , C07C253/30 , C07C255/04 , C07C255/07 , C07F9/48
Abstract: The invention relates to phosphinites I of formulae (1) or (2), in which R1, R2, R5, R6, R7, R8, R9 independently represent hydrogen, an alkyl or alkylene group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms; R3 is H or methyl; R4 is i-propyl or t-butyl; X is F, Cl or CF 3 and n is 1 or 2.
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公开(公告)号:CA2582813A1
公开(公告)日:2006-04-27
申请号:CA2582813
申请日:2005-10-12
Applicant: BASF AG
Inventor: BARTSCH MICHAEL , BASSLER PETER , PFAB PETER , DECKERT PETRA , SIEGEL WOLFGANG , AECHTNER TOBIAS , HADERLEIN GERD , LUYKEN HERMANN , SCHEIDEL JENS
Abstract: A process for extractively removing homogeneously dissolved catalysts from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles with a hydrocarbon H, including performing the steps of a) concentrating the reaction effluent before step b) by distillation at pressures of from 0.1 to 5000 mbar and temperatures of from 10 to 150° C., b) adding a hydrocarbon H to the concentrated reaction effluent to obtain a stream I, and c) feeding stream I, without prior separation of the liquid phases, into an extraction apparatus and extracting it at a temperature T with the hydrocarbon H to obtain a stream II comprising the hydrocarbon H enriched with the catalyst and a stream III having a low catalyst content.
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公开(公告)号:AR048225A1
公开(公告)日:2006-04-12
申请号:ARP050100313
申请日:2005-01-28
Applicant: BASF AG
Inventor: SCHEIDEL JENS , JUNGKAMP TIM , BARTSCH MICHAEL , HADERLEIN GERD , BAUMANN ROBERT , LUYKEN HERMANN
IPC: C07C253/10 , C07C255/07
Abstract: Se describe un procedimiento para preparar 3-pentenonitrilo por hidrocianacion de 1,3-butadieno, en donde el 1,3-butadieno se hace reaccionar en presencia de al menos un catalizador con ácido cianhidrico y la corriente resultante se purifica por destilacion, en donde la temperatura de la descarga no supera los 140 degree C durante la destilacion.
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