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公开(公告)号:AU7636501A
公开(公告)日:2002-01-02
申请号:AU7636501
申请日:2001-06-13
Applicant: BASF AG
Inventor: LUYKEN HERMANN , OHLBACH FRANK , FISCHER ROLF-HARTMUTH , MELDER JOHANN-PETER , BASSLER PETER , ANSMANN ANDREAS , ACHHAMMER GUNTHER
IPC: C07C209/48 , C07C253/34 , C07C255/03 , C07C255/24
Abstract: The invention relates to a method for removing, by distillation, 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine, by a) removing the hexamethylenediamine from the mixture while obtaining a mixture (I) that has a hexamethylenediamine content of less than 1 wt. -%, b) removing completely or partially the 6-aminocapronitrile from mixture (I) while obtaining a mixture (II) whose content in substances that have a higher boiling point as 6-aminocapronitrile under distillation conditions and that cannot be formed by dimerization reactions when 6-aminocapronitrile is thermally treated is less than 1 wt. -%, and c) completely or partially removing from mixture (II) the hexamethylenediamine that might be present while obtaining a mixture (IV) whose hexamethylenediamine content is higher than that of mixture (II), and a mixture (V) whose hexamethylenediamine content is lower than that of mixture (II).
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公开(公告)号:CA2412928A1
公开(公告)日:2001-12-27
申请号:CA2412928
申请日:2001-06-13
Applicant: BASF AG
Inventor: OHLBACH FRANK , MELDER JOHANN-PETER , FISCHER ROLF-HARTMUTH , LUYKEN HERMANN , BASSLER PETER , ANSMANN ANDREAS , ACHHAMMER GUNTHER
IPC: C07C209/48 , C07C253/34 , C07C255/03 , C07C255/24
Abstract: The invention relates to a method for removing, by distillation, 6- aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine, by a) removing the hexamethylenediamine from the mixture while obtaining a mixture (I) that has a hexamethylenediamine content of less than 1 wt.- %, b) removing completely o r partially the 6-aminocapronitrile from mixture (I) while obtaining a mixture (II) whose content in substances that have a higher boiling point as 6- aminocapronitrile under distillation conditions and that cannot be formed by dimerization reactions when 6-aminocapronitrile is thermally treated is less than 1 wt.- %, and c) completely or partially removing from mixture (II) the hexamethylenediamine that might be present while obtaining a mixture (IV) whose hexamethylenediamine content is higher than that of mixture (II), and a mixture (V) whose hexamethylenediamine content is lower than that of mixture (II).
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公开(公告)号:ID30506A
公开(公告)日:2001-12-13
申请号:ID20010419
申请日:1999-08-17
Applicant: BASF AG
Inventor: LUYKEN HERMANN , OHLBACK FRANK , ANSMANN ANDREAS , BASSLER PETER , FISCHER ROLF , MELDER JOHANN-PETER , MERGER MARTIN , REHFINGER ALWIN , VOIT GUIDO , ACHHAMMER GUNTHER
IPC: C07B61/00 , C07C209/48 , C07C209/84 , C07C211/12 , C07C253/30 , C07C253/34 , C07C255/24
Abstract: A process for the coproduction of 6-aminocapronitrile and hexamethylenediamine starting from adiponitrile bya) hydrogenating adiponitrile in the presence of a catalyst comprising an element of the eighth transition group as catalytically active component, to obtain a mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers,b) distillatively removing hexamethylenediamine from the mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers, and eithercl) distillatively removing 6-aminocapronitrile, and thend1) distillatively removing adiponitrile, orc2) simultaneously distillatively removing 6-aminocapronitrile and adiponitrile into separate fractionsis characterized by base of column temperatures below 185° C. in steps d1) or c2).
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公开(公告)号:ID26109A
公开(公告)日:2000-11-23
申请号:ID20001702
申请日:1999-03-02
Applicant: BASF AG
Inventor: HEINEKE DANIEL , SCHNEIDER HEINZ WALTER , THOME ALFRED , ACHHAMMER GUNTHER , MULLER ULRICH , HOFSTADT OTTO
Abstract: The invention relates to a method for producing hydroxylammonium salts by means of catalytic reduction of nitrogen monoxide with hydrogen in the presence of an acid and a hydrogenating catalyst, whereby the nitrogen monoxide is purified before the catalytic reduction by at least one treatment with porous oxides based on silicon and/or aluminum or with activated carbon.
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公开(公告)号:ES2149514T3
公开(公告)日:2000-11-01
申请号:ES96943913
申请日:1996-12-11
Applicant: BASF AG
Inventor: ACHHAMMER GUNTHER , BASSLER PETER , FISCHER ROLF , FUCHS EBERHARD , LUYKEN HERMANN , SCHNURR WERNER
IPC: C07C209/48 , C07C209/86 , C07C211/12 , C07D201/08
Abstract: PCT No. PCT/EP96/05521 Sec. 371 Date Jun. 16, 1998 Sec. 102(e) Date Jun. 16, 1998 PCT Filed Dec. 11, 1996 PCT Pub. No. WO97/23454 PCT Pub. Date Jul. 3, 1997Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile.
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16.
公开(公告)号:CA2342177A1
公开(公告)日:2000-03-09
申请号:CA2342177
申请日:1999-08-17
Applicant: BASF AG
Inventor: MERGER MARTIN , MELDER JOHANN-PETER , LUYKEN HERMANN , ANSMANN ANDREAS , BASSLER PETER , REHFINGER ALWIN , ACHHAMMER GUNTHER , OHLBACH FRANK , VOIT GUIDO , FISCHER ROLF
IPC: C07B61/00 , C07C209/48 , C07C209/84 , C07C211/12 , C07C253/30 , C07C253/34 , C07C255/24
Abstract: The invention relates to a method for simultaneous preparation of 6- aminocapronitrile and hexamethylene diamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the eight subgroup as catalytically active component to obtain a mixture containing 6-aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers; b) separating by distillation hexamethylene diamine from the mixture containing 6-aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers and c1) separating by distillation 6-aminocapronitrile and subsequently d1) separating by distillation adipodinitrile or c2) simultaneously separating by distillation 6- aminocapronitrile and adipodinitrile into separate fractions. The method is characterized in that the temperature of the bottom in steps d1) or c2) is below 185 ~ C.
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17.
公开(公告)号:AU5029899A
公开(公告)日:2000-02-14
申请号:AU5029899
申请日:1999-07-02
Applicant: BASF AG
Inventor: LUYKEN HERMANN , OHLBACH FRANK , ANSMANN ANDREAS , BASSLER PETER , FISCHER ROLF , MELDER JOHANN-PETER , MERGER MARTIN , REHFINGER ALWIN DR , VOIT GUIDO , ACHHAMMER GUNTHER
IPC: C07B61/00 , C07C209/48 , C07C209/84 , C07C209/86 , C07C211/12 , C07C253/30 , C07C253/34 , C07C255/24
Abstract: The invention relates to a method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the VIII subgroup thereby obtaining a mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers; b) distillative separation of hexamethylenediamine from the mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers or c1) distillative separating 6-aminocapronitrile and subsequently d1) distillative separation of adipodinitrile or c2) simultaneous distillative separation of 6-aminocapronitrile and adipodinitrile into separate fractions. The invention is characterized in that temperatures in the bottoms of the column in steps d1) or c2) are under 185 DEG C. The adipodinitrile thus obtained contains less impurities than for instance 1-amino-2-cyanocyclopentenes.
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公开(公告)号:MX9703727A
公开(公告)日:1998-02-28
申请号:MX9703727
申请日:1995-11-14
Applicant: BASF AG
Inventor: ACHHAMMER GUNTHER , FUCHS EBERHARD
IPC: C07D201/08 , C07D223/10
Abstract: La presente invencion se refiere a la caprolactama que se prepara haciendo reaccionar una solucion de 6-aminocapronitrilo con agua en la fase líquida a temperaturas elavadas mediante un proceso en el cual, (a) una solucion de 6-aminocapronitrilo en fase líquida se calienta sin la adicion de un catalizador en un reactor A para dar una mezcla I que cosiste esencialmente en agua, caprolactama y una fraccion de elevado punto de ebullicion (ebullidor elevado), luego (b) el agua se retira de la mezcla resultante I para dar una mezcla II que consiste esencialmente en caprolactama y los ebullidores elevados, después (c) la caprolactama y los ebullidores elevados de la mezcla II se separan por destilacion, y luego (D1) los ebullidores elevados de la etapa (c) se alimentan al reactor A de la etapa (a), o (d2) los ebullidores elevados se calientan de la misma manera que en la etapa (a) en otro reactor B y luego se procesan de la misma manera que etapas (b) y (c) para producir más caprolactama, o (d3) los ebullidores elevados se calientan a presion reducida en presencia de una base en un reactor C y la mezcla que reacciono se trabaja por destilacion para dar caprolactama.
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公开(公告)号:SK63697A3
公开(公告)日:1997-11-05
申请号:SK63697
申请日:1995-11-29
Applicant: BASF AG
Inventor: FUCHS EBERHARD , ACHHAMMER GUNTHER
IPC: C07D201/08 , C07D223/10
Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.
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公开(公告)号:MX9703955A
公开(公告)日:1997-09-30
申请号:MX9703955
申请日:1995-11-29
Applicant: BASF AG
Inventor: FUCHS EBERHARD , ACHHAMMER GUNTHER
IPC: C07D201/08 , C07D223/10
Abstract: La presente invencion se refiere al compuesto Caprolactama que se prepara por calentamiento de 6-aminocapronitrilo en presencia de un catalizador heterogéneo y agua a presion super atmosférica mediante un método en el que (a) 6-aminocapronitrilo, una mezcla que contiene esencialmente 6-aminocapronitrilo y agua y un alcohol de bajo punto de ebullicion o de elevado punto de ebullicion se calientan en presencia de un catalizador heterogéneo en un reactor A para dar una mezcla I, (b) la mezcla I luego se destila para dar una fraccion superior, caprolactama y un producto inferior, amoniaco que se elimina antes de la destilacion si está presente en la mezcla I, y luego (c) la fraccion superior se alimenta en el reactor A de la etapa (a), si se desea, la fraccion superior se mezcla con el alcohol o con agua o 6-aminocapronitrilo utilizados en la etapa (a) antes de ser alimentada en el reactor A, o (c2) la fraccion superior, si se desea, con el producto inferior de la etapa (d), se alimenta en el reactor B, la fraccion superior se alimenta, si se desea, con el alcohol o el agua o el 6-aminocapronitrilo utilizado en la etapa (a) antes de ser alimentado en el reactor B, y entonces se obtiene caprolactama de la misma manera que en la etapa (b) por destilacion, y cualquiera de lo siguiente (d1) el producto inferior de la etapa (b) se alimenta en el reactor A de la etapa (a) o, (d2) si se desea, se añade agua, y si se desea, se añade alcohol de bajo de punto de ebullicion o de elevado punto de ebullicion al producto inferior y este ultimo entonces se calienta de la misma manera que en la etapa (a) en otro reactor C para dar una mezcla reaccion, a partir de la cual se obtiene caprolactama por destilacion, o (d3) se añade agua al producto inferior, el cual entonces se calienta en un reactor D sin la adicion de un catalizador para dar una mezcla de reaccion, y se obtiene caprolactama a partir de la mezcla de reaccion por destilacion, o (d4) el producto inferior al cual se ha añadido agua y una base, se calienta en un reactor E para dar una mezcla de reaccion, a partir de la cual se obtiene caprolactama por destilacion.
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