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183 records (took 0.021 seconds)

    52.
    发明专利
    未知

    公开(公告)号：AT368676T

    公开(公告)日：2007-08-15

    申请号：AT05701205

    申请日：2005-01-27

    Applicant: BASF AG

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

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

    Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.

    54.
    发明专利
    未知

    公开(公告)号：BRPI0507258A

    公开(公告)日：2007-06-26

    申请号：BRPI0507258

    申请日：2005-01-27

    Applicant: BASF AG

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

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

    Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.

    58.
    发明专利
    未知

    公开(公告)号：BRPI0409316A

    公开(公告)日：2006-04-25

    申请号：BRPI0409316

    申请日：2004-04-15

    Applicant: BASF AG

    Inventor： BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  FLORES MIGUEL ANGEL ,  JUNGKAMP TIM ,  LUYKEN HERMANN ,  SCHEIDEL JENS ,  SIEGEL WOLFGANG ,  KUNSMANN-KEITEL DAGMAR PASCALE ,  BASSLER PETER

    IPC: C01C3/02 ,  C01C3/04 ,  C07C253/00

    Abstract: A process for dewatering hydrocyanic acid by distillation, which includes distilling crude hydrocyanic acid containing from 50 to 99.9% by weight of HCN, from 0.1 to 40% by weight of water, from 0 to 15% by weight of carbon oxides and optionally from 0.01 to 1% by weight of an involatile stabilizer, at a pressure of from 1 bar to 2.5 bar, a bottom temperature of from 100° C. to 130° C. and a top temperature of from 25° C. to 54° C., in the absence of a volatile stabilizer, in a distillation column to obtain a top draw stream containing purified, anhydrous hydrocyanic acid and carbon oxides and a bottom draw stream including water and, optionally, the involatile stabilizer.

    UN PROCEDIMIENTO PARA LA SEPARACION DE ACIDO CIANHIDRICO DE MEZCLAS QUE CONTIENEN PENTENONITRILO Y ACIDO CIANHIDRICO
    59.
    发明专利
    UN PROCEDIMIENTO PARA LA SEPARACION DE ACIDO CIANHIDRICO DE MEZCLAS QUE CONTIENEN PENTENONITRILO Y ACIDO CIANHIDRICO 未知

    公开(公告)号：AR047477A1

    公开(公告)日：2006-01-18

    申请号：ARP050100310

    申请日：2005-01-28

    Applicant: BASF AG

    Inventor： JUNG DIETER ,  POLKA H ,  BAUMANN ROBERT ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  SCHEIDEL JENS

    IPC: C07C253/34 ,  C07C255/04 ,  C07C255/07

    Abstract: Reivindicacion 1: Procedimiento para reducir el contenido de ácido cianhídrico en mezclas que contienen pentenonitrilos y ácido cianhídrico, caracterizado porque la reduccion del contenido de ácido cianhídrico se realiza mediante separacion de ácido cianhídrico por medio de una destilacion azeotropica con 1,3-butadieno. Reivindicacion 2: Procedimiento segun la reivindicacion 1, que está caracterizado por las siguientes etapas de procedimiento: a) hidrocianuracion de 1-3-butadieno por transformacion de éste con ácido cianhídrico en presencia de por lo menos un catalizador de hidrocianuracion, obteniéndose una corriente de hidrocianuracion, que contiene 3-pentenonitrilo, 2-metil-3-butenonitrilo, ácido cianhídrico, 1,3-butadiendo y el por lo menos un catalizador de hidrocianuracion, b) separacion de una mezcla de ácido cianhídrico y 1,3-butadieno, que forma un azeotropo, a partir de la corriente de hidrocianuracion por destilacion.

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