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    72.
    发明专利
    未知

    公开(公告)号：AT526336T

    公开(公告)日：2011-10-15

    申请号：AT07787009

    申请日：2007-07-03

    Applicant: BASF SE

    Inventor： BAUMANN ROBERT ,  AECHTNER TOBIAS ,  SIEGEL WOLFGANG ,  LUYKEN HERMANN ,  PFAB PETER ,  SCHEIDEL JENS ,  LEITNER ANDREAS ,  GLASS ANDREAS

    IPC: C07F9/48

    Abstract: Method of producing compounds of the general formula XPR2(OR1)  Ia where X is chlorine, bromine or iodine and R1 is an organic radical, by reacting compounds of the general formula X2PR2  II, in which X has the meaning given above and R2 is an organic radical, with compounds of the general formula R1OH  III, in which R1 has the meaning given above, to give a mixture IV, in that a) the postreaction is carried out at a temperature of from 50 to 240° C. and a pressure of from 0.001 to 0.9 bar, b) from the mixture IV the compounds Ia are separated off from the compounds PR2(OR1)2  Ib and, if appropriate, the compounds II and c) compounds Ib and, if appropriate, unreacted compounds II are returned to the synthesis stage.

    76.
    发明专利
    未知

    公开(公告)号：AT507202T

    公开(公告)日：2011-05-15

    申请号：AT05707029

    申请日：2005-01-27

    Applicant: BASF SE

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

    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.

    78.
    发明专利
    未知

    公开(公告)号：AT497491T

    公开(公告)日：2011-02-15

    申请号：AT03773710

    申请日：2003-11-11

    Applicant: BASF SE

    Inventor： FISCHER ROLF-HARTMUTH ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BASLER PETER ,  BENISCH CHRISTOPH ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

    IPC: C07D201/16 ,  C07D201/08

    Abstract: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

    Method for extension of operation hours of plant for cleaning of hydrocyanic acid, comprises treating the surface of the plant that comes in contact with the hydrocyanic acid, with an oxidation agent
    79.
    发明专利
    Method for extension of operation hours of plant for cleaning of hydrocyanic acid, comprises treating the surface of the plant that comes in contact with the hydrocyanic acid, with an oxidation agent 未知

    公开(公告)号：DE102009001699A1

    公开(公告)日：2009-10-15

    申请号：DE102009001699

    申请日：2009-03-20

    Applicant: BASF SE

    Inventor： ACHHAMMER GUENTHER ,  LUYKEN HERMANN ,  PFAB PETER

    IPC: C01C3/02

    Abstract: The method comprises treating a surface of plant that comes in contact with the hydrocyanic acid, with an oxidation agent at 200-800[deg] C, and subsequently subjecting the plant with the hydrocyanic acid. The surface of the plant is stainless steel containing surface. The oxidation agent is oxidizing fluid, oxidizing paste and oxidizing gas. The treatment of the surface is carried out through immersing, spraying, flooding the plant, coating and conducting gases. Before the treatment of the surface with the oxidation agent, a mechanical processing of the surface is carried out. The method comprises treating a surface of plant that comes in contact with the hydrocyanic acid, with an oxidation agent at 200-800[deg] C, and subsequently subjecting the plant with the hydrocyanic acid. The surface of the plant is stainless steel containing surface. The oxidation agent is oxidizing fluid, oxidizing paste and oxidizing gas. The treatment of the surface is carried out through immersing, spraying, flooding the plant, coating and conducting gases. Before the treatment of the surface with the oxidation agent, a mechanical processing of the surface is carried out through high pressure cleaning, palpitating, beating, grinding, radiating, brushing and/or polishing and the surface is treated by rinsing with an aqueous caustic soda. During subjecting the plant with the hydrocyanic acid, a slight quantity of diluted acid and/or acid gas is dosed in the plant. The method is carried out for dewatering of hydrocyanic acid by distillation.

    PROCEDIMIENTO MEJORADO PARA PREPARAR CIANURO DE HIDROGENO MEDIANTE DESHIDRATACION CATALITICA DE FORMAMIDA GASEOSA
    80.
    发明专利
    PROCEDIMIENTO MEJORADO PARA PREPARAR CIANURO DE HIDROGENO MEDIANTE DESHIDRATACION CATALITICA DE FORMAMIDA GASEOSA 未知

    公开(公告)号：PE20091289A1

    公开(公告)日：2009-09-25

    申请号：PE2008001921

    申请日：2008-11-13

    Applicant: BASF SE

    Inventor： BOHLING RALF ,  DECKERS ANDREAS ,  SCHNEIDER THOMAS ,  ACHHAMMER GUNTHER ,  LUYKEN HERMANN ,  PFAB PETER

    IPC: C01C3/00

    Abstract: ESTE PROCEDIMIENTO SE LLEVA A CABO EN UN REACTOR TUBULAR FORMADO POR AL MENOS UN CANAL DE REACCION DONDE SE LLEVA A CABO LA DESHIDRATACION CATALITICA, TENIENDO DICHO CANAL DE REACCION UNA SUPERFICIE INTERNA QUE ESTA FORMADA POR UN MATERIAL CON UN CONTENIDO DE HIERRO MAYOR O IGUAL AL 50 % EN PESO Y NO SE ENCUENTRAN PRESENTES CATALIZADORES Y/O INSERTOS ADICIONALES EN EL CANAL DE REACCION, TENIENDO ESTE, UN DIAMETRO HIDRAULICO MEDIO DE 0,5 A 6 mm. SE REFIERE ADEMAS, A UN REACTOR TUBULAR FORMADO POR AL MENOS DOS CAPAS PARALELAS A Y B, DISPUESTAS LA UNA ENCIMA DE LA OTRA, TENIENDO LA CAPA A POR LO MENOS DOS CANALES DE REACCION DISPUESTOS EN FORMA PARALELA EL UNO RESPECTO AL OTRO Y QUE TIENEN UN DIAMETRO HIDRAULICO MEDIO DE 1 A 6 mm, Y TENIENDO LA CAPA B POR LO MENOS DOS CANALES DISPUESTOS EN FORMA PARALELA EL UNO RESPECTO AL OTRO Y QUE TIENEN UN DIAMETRO HIDRAULICO MEDIO MENOR A 4 mm, A TRAVES DE LOS CUALES FLUYE UN PORTADOR DE CALOR; TENIENDO DICHOS CANALES DE REACCION UNA SUPERFICIE INTERNA FORMADA POR UN MATERIAL CON UN CONTENIDO DE HIERRO MAYOR O IGUAL A 50% EN PESO Y NO ESTANDO PRESENTES CATALIZADORES Y/O INSERTOS ADICIONALES EN LOS CANALES DE REACCION

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