中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

161 records (took 0.044 seconds)

    62.
    发明专利
    未知

    公开(公告)号：BRPI0507197B1

    公开(公告)日：2014-12-30

    申请号：BRPI0507197

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： JUNGKAMP TIM ,  SCHEIDEL JENS ,  SIEGEL WOLFGANG ,  BAUMANN ROBERT ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  AECHTNER TOBIAS ,  PFAB PETER ,  DECKERT PETRA ,  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.

    63.
    发明专利
    未知

    公开(公告)号：BRPI0516617A

    公开(公告)日：2008-09-16

    申请号：BRPI0516617

    申请日：2005-10-12

    Applicant: BASF AG

    Inventor： DECKERT PETRA ,  BASSLER PETER ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  SCHEIDEL JENS ,  PFAB PETER ,  AECHTNER TOBIAS ,  SIEGEL WOLFGANG

    IPC: B01J38/56 ,  B01D11/04 ,  B01J31/18 ,  B01J31/24 ,  B01J31/40 ,  C07C253/10

    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.

    SEPARACION DE COMPLEJOS DE NIQUEL (0) Y LIGANDOS FOSFORADOS A PARTIR DE MEZCLAS DE NITRILOS.
    64.
    发明专利
    SEPARACION DE COMPLEJOS DE NIQUEL (0) Y LIGANDOS FOSFORADOS A PARTIR DE MEZCLAS DE NITRILOS. 未知

    公开(公告)号：ES2289689T3

    公开(公告)日：2008-02-01

    申请号：ES05701205

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： SCHEIDEL JENS ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  BAUMANN ROBERT ,  LUYKEN HERMANN

    IPC: C07F9/00 ,  C07C253/34 ,  C07C255/04 ,  C07F9/02

    Abstract: Procedimiento para la separación por extracción de complejos de níquel (0) con ligandos fosforados y/o ligandos fosforados libres a partir de una descarga de reacción de un hidrocianado de mononitrilos insaturados para dar dinitrilos, mediante extracción por medio de un hidrocarburo efectuándose una separación de fases de hidrocarburo y descarga de reacción en dos fases a una temperatura T (en ºC), caracterizado porque, en la descarga de reacción de hidrocianado, el contenido en complejos de níquel (0) con ligandos fosforados y/o ligandos fosforados libres, dependiendo de la temperatura T, asciende al menos a y % en peso, e independientemente de la temperatura T asciende a un máximo de un 60 % en peso, determinándose el valor numérico del contenido mínimo y mediante la ecuación Y = 0, 5 . T + 20 y debiéndose emplear T en la ecuación como valor numérico adimensional.

    68.
    发明专利
    未知

    公开(公告)号：AT359254T

    公开(公告)日：2007-05-15

    申请号：AT04739502

    申请日：2004-06-02

    Applicant: BASF AG

    Inventor： FLORES MIGUEL ANGEL ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  JUNGKAMP TIM ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  SIEGEL WOLFGANG ,  MEYER CHRISTA ,  WIDMAIER RALF

    IPC: C07C37/11 ,  C07C39/15 ,  C07C37/60

    Abstract: The invention is a process for preparing tetraalkyl-substituted biphenol which comprises reacting a 2,4- or 2,6-dialkyl substituted phenol in which the alkyl groups contain 1 to 6 carbon atoms with a peroxidase enzyme in the presence of a peroxide in an aqueous medium to yield a tetraalkyl-substituted biphenol by oxidative coupling of the 2,4- or 2,6-dialkyl substituted phenol, or yielding a tetra-alkyl substituted quinone, and reducing the quinone to obtain a tetraalkyl-substituted biphenol. The invention further includes a process for preparing a tetraaryl-substituted biphenol in which the aryl groups contain 6 to 10 carbon atoms which comprises racting a 2,4 or 2,6 diarylphenol with a peroxidase enzyme to yield a tetraaryl-substituted biphenol. A process for reducing a tetraalkyl-substituted quinone to corresponding tetraalkyl-substituted biphenol which comprises reducing the quinone with a phenol in an aqueous medium at a temperature of about 60° to 120° C. is also included.

    70.
    发明专利
    未知

    公开(公告)号：AT355902T

    公开(公告)日：2007-03-15

    申请号：AT04722843

    申请日：2004-03-24

    Applicant: BASF AG

    Inventor： BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  FLORES MIGUEL ANGEL ,  JUNGKAMP TIM ,  LUYKEN HERMANN ,  SCHEIDEL JENS ,  SIEGEL WOLFGANG ,  MOLNAR FERENC

    IPC: B01J23/755 ,  B01J31/02 ,  B01J31/14 ,  B01J31/18 ,  C07C253/10 ,  C07C255/04 ,  B01J27/14

    Abstract: A system which is suitable as a catalyst for the hydrocyanation of olefinically unsaturated compounds and comprises a) Ni(0) b) a compound which complexes Ni(0) as a ligand and contains trivalent phosphorus, c) a Lewis acid and d) a compound of the formula M Rn where M: Al or Ti R: identical or different monovalent alkoxy radicals, in which case a plurality of alkoxy radicals may be bonded together, and additionally, in the case that M=Al, R may be identical or different monovalent alkyl radicals, in which case a plurality of alkyl radicals may be bonded together or one or more alkyl radicals may be bonded to one or more of the abovementioned alkoxy radicals, n: valency of M, and processes for hydrocyanating an olefinically unsaturated compound in the presence of such a system.

Patent Agency Ranking