22.
    发明专利
    未知

    公开(公告)号:BR0114273A

    公开(公告)日:2003-08-26

    申请号:BR0114273

    申请日:2001-09-25

    Applicant: BASF AG

    Abstract: A process is provided for the distillative separation of pentene nitrile isomers which have a relative volatility alpha ranging from 1.0 to 1.3 in the pressure range from 1 to 500 kPa, wherein the distillation is carried out in the presence of a liquid diluent which forms with the pentene nitrile isomers, under the same pressure conditions, azeotropes whose relative volatility alpha is higher than that of the pentene nitrile isomers to be separated.

    CATALYST SYSTEM CONTAINING NI(0) FOR HYDROCYANATION

    公开(公告)号:CA2454912A1

    公开(公告)日:2003-02-13

    申请号:CA2454912

    申请日:2002-07-16

    Applicant: BASF AG

    Abstract: A catalyst system containing a) Ni (0), b) 4 -10 mol per mol Ni (0) accordin g to a) a compound (I) of formula P (X1R1) (X2R2) (X3R3) (I) wherein X1, X2, X 3 independently represent oxygen or a single bond R1, R2, R3 represent independently, the same or different organic radicals, and c) 1 -4 mol per m ol Ni (0) according to a) a compound (II) of formula (II) wherein X11, X12, X13 , X21, X22, X23 independnetly represent oxygen or a single bond, R11, R12 independently represent the same or different individual or bridged organic radicals, R21, R22 independently represent the same or different, individual or bridged organic radicals, Y represents a bridge group. The invention also relates to a method for the production of mixtures of monoolefin C5- mononitrils with a n-conjugated C=C and C=N bond by hydrocyanation of a hydrocarbon mixture containing 1,3-butadiene in the presence of at least one such system and to a method for the production of a dinitrile by hydrocyanation of a mixture of monoolefin C5-mononitriles with a non- conjugated C=C- and C=N bond in the presence of at least one such system.

    28.
    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

    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.

    SEPARACION DE COMPLEJOS DE NIQUEL (0) Y LIGANDOS FOSFORADOS A PARTIR DE MEZCLAS DE NITRILOS.

    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

    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.

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