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    21.
    发明专利
    未知

    公开(公告)号：BR0316179A

    公开(公告)日：2005-09-27

    申请号：BR0316179

    申请日：2003-11-11

    Applicant: BASF AG

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

    IPC: C07D201/16 ,  C07D201/08

    Abstract: A process for the purification of crude caprolactam, prepared by reaction of a mixture comprising 6-aminocapronitrile and water, comprises a three stage distillation process with feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column. A process for the purification of crude caprolactam, prepared by reaction of a mixture comprising 6-aminocapronitrile and water in the presence of a catalyst to form a mixture comprising caprolactam, ammonia, water and high and low b. pt. byproducts followed by removal of ammonia to yield a mixture of caprolactam, water and high and low b. pt. byproducts followed by at least partial removal of water to yield a crude caprolactam containing caprolactam and high and low b. pt. byproducts, comprises: (a) feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column; (b) distillation of the crude caprolactam and inorganic acid to form a sump stream and an overhead stream; (c) feeding of the overhead stream to a second distillation column; (d) distillation of the stream to form a sump stream and overhead stream; (e) feeding of the overhead stream to a third distillation column; (f) distillation of the overhead stream to form a sump stream and purified caprolactam in the overhead stream; and (g) feeding of the sump stream to the first distillation column.

    PROCEDIMIENTO PARA REDUCIR EL CONTENIDO EN UNA AMINA INSATURADA EN UNA MEZCLA QUE CONTIENE UN AMINONITRILO, UNA DIAMINA, UN DINITRILO O SUS MEZCLAS
    22.
    发明专利
    PROCEDIMIENTO PARA REDUCIR EL CONTENIDO EN UNA AMINA INSATURADA EN UNA MEZCLA QUE CONTIENE UN AMINONITRILO, UNA DIAMINA, UN DINITRILO O SUS MEZCLAS 未知

    公开(公告)号：AR039981A1

    公开(公告)日：2005-03-09

    申请号：ARP030101612

    申请日：2003-05-08

    Applicant: BASF AG

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

    IPC: C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C253/34 ,  C07C255/09 ,  C07C255/24

    Abstract: Procedimiento para reducir el contenido en una amina alifática, monoinsaturada (IV) en una mezcla (V), que contiene un aminonitrilo (I) o una diamina (II) o un dinitrilo (III) o sus mezclas y amina (IV), en donde se hace reaccionar: a) una mezcla (V) con un nucleófilo aniónico (VI), que presenta un átomo nucleófilo seleccionado del grupo que comprende: oxígeno, nitrógeno y azufre, que es capaz de recibir un ión H+, formando un ácido con un valor pKa, dentro del margen de 7 a 11, medido en agua a 25° C, y que presenta una nucleofilia relativa, medida en perclorato de metilo/metanol a 25°C, dentro del margen de 3,4 a 4,7 en el caso de oxígeno como átomo nucleófilo, dentro del margen de 4,5 a 5,8 en el caso de nitrógeno como átomo nucleófilo y dentro del margen de 5,5 a 6,8 en el caso de azufre como átomo nucleófilo, en una cantidad de 0,01 a 10 moles por mol de amina (IV) en la mezcla (V), a una temperatura dentro del margen de 50 a 200° C, obteniéndose una mezcla (VII); b) se destila aminonitrilo (I) o diamina (II) o dinitrilo (III) o sus mezclas de la mezcla (VII) a una temperatura dentro del margen de 50 a 200° C y una presión dentro del margen de 0,1 a 100 kPa, obteniéndose un producto de fondo (VIII); en donde el procedimiento comprende el paso; c) del producto de fondo (VIII) se destila un aminonitrilo (I) o una diamina (II) o un dinitrilo (III) o sus mezclas a una temperatura, que es más baja que la temperatura seleccionada en la etapa b).

    OBTAINING CAPROLACTAM BY HYDROLYTIC CLEAVAGE OF MOLTEN POLYCAPROLACTAM
    23.
    发明专利
    OBTAINING CAPROLACTAM BY HYDROLYTIC CLEAVAGE OF MOLTEN POLYCAPROLACTAM 未知

    公开(公告)号：CA2208226C

    公开(公告)日：2005-02-15

    申请号：CA2208226

    申请日：1995-12-01

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  KOPIETZ MICHAEL

    IPC: B03B9/06 ,  C07D201/12 ,  C08J11/14 ,  C07D223/10

    Abstract: Disclosed is a method of obtaining caprolactam from polymers containing caprolactam in the presence of superheated water. The proposed method is based on the use of polymers containing the repeating uni t - [-N(H)-(CH2)5-C(O)-]- or mixtures consisting essentially of: 40-99.99 wt.% of a polymer containing the repeating unit -[-N(H)-(CH2)5- C(O)-]-;0.01-50 wt.% of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes; 0- 10 wt.% of organic and/or inorganic additives; 0-40 wt.% of polymers which do not contain polyamide; 0-60 wt.% of polyamides with the exception of polycaprolactam and copolyamides based on caprolactam. These polymers or mixtures are brought into contact with superheated water at a temperature of 280-320 .degree.C and at a pressure of 7.5-15 Mpa, the weight ratio of water to the polymer containing the repeating unit -[-N(H)-(CH2)5-C(O)-]- being between 5:1 and 13:1 and the reaction time less than 3 hours. The reaction mixture consisting essentially of water and the polymers or mixture indicated above should contain no gaseous phase under the conditions of hydrolysis.

    METHOD FOR ISOLATING A HOMOGENEOUS CATALYST CONTAINING RHODIUM
    24.
    发明专利
    METHOD FOR ISOLATING A HOMOGENEOUS CATALYST CONTAINING RHODIUM 未知

    公开(公告)号：CA2529247A1

    公开(公告)日：2004-12-29

    申请号：CA2529247

    申请日：2004-06-19

    Applicant: BASF AG

    Inventor： ROEPER MICHAEL ,  STUEER WOLFRAM ,  BASSLER PETER ,  SCHEIDEL JENS

    IPC: C07C51/44 ,  C07C67/54 ,  C07C231/24 ,  C07C253/32

    Abstract: The invention relates to a distillation method for isolating a compound comprising at least two functional groups, selected independently of one another from a group consisting of a nitrile group, carboxylic acid group, carboxylic acid ester group and a carboxamide group from a mixture containin g a compound comprising at least two functional groups, selected independently of one another from a group consisting of a nitrile group, carboxylic acid group, carboxylic acid ester group and a carboxamide group and a rhodium containing compound that is homogeneous in the mixture.

    25.
    发明专利
    未知

    公开(公告)号：DE50104409D1

    公开(公告)日：2004-12-09

    申请号：DE50104409

    申请日：2001-07-05

    Applicant: BASF AG

    Inventor： TELES HENRIQUE ,  REHFINGER ALWIN ,  BASSLER PETER ,  BERG ANNE ,  RIEBER NORBERT ,  RUDOLF PETER

    IPC: C07D20060101 ,  C07D301/12 ,  C07D301/32 ,  C07D303/04

    Abstract: A process for the preparation of propylene oxide in which (i) propene is reacted with hydrogen peroxide in the presence of methanol to give propylene oxide, giving a mixture (Gi) comprising propylene oxide, methanol, water and unreacted hydrogen peroxide, (ii) a mixture (Gii) comprising methanol, water and hydrogen peroxide is separated off from the mixture (Gi), giving a mixture (Ga) comprising propylene oxide, and (iii) water is separated off from the mixture (Gii), giving a mixture (Giii) comprising methanol and methyl formate.

    PREPARATION OF PROPYLENE OXIDE
    27.
    发明专利
    PREPARATION OF PROPYLENE OXIDE 未知

    公开(公告)号：CA2522481A1

    公开(公告)日：2004-10-28

    申请号：CA2522481

    申请日：2004-04-16

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  GOEBBEL HANS-GEORG ,  RUDOLF PETER ,  TELES JOAQUIM HENRIQUE

    IPC: C07D301/12 ,  C07D303/04

    Abstract: The invention relates to a method for producing propylene oxide, comprising steps (iii) and (iv): (iii) separating propylene oxide by distillation out from a mixture (G1) containing propylene oxide and at least one solvent whil e using a distillation column during which a bottom flow and a vapor flow essentially containing propylene oxide are obtained; (iv) compressing the vapor flow obtained according to step (iii) by means of at least one compressor while obtaining a compressed vapor.

    Method for producing an epoxide.
    29.
    发明专利
    Method for producing an epoxide. 未知

    公开(公告)号：ZA200306056B

    公开(公告)日：2004-09-28

    申请号：ZA200306056

    申请日：2003-08-06

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  BERG ANNE ,  REHFINGER ALWIN ,  RIEBER NORBERT ,  RUDOLF PETER ,  TELES JOAQUIM HENRIQUE

    IPC: C07D301/12 ,  C07D301/19 ,  C07D301/32 ,  C07D

    Abstract: An organic compound having at least one C-C double bond is epoxidized by means of hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent, wherein a product mixture comprising alpha-hydroperoxyalcohols is reduced using at least one reducing agent. The process advantageously comprises at least the following steps: (i) reacting an organic compound having at least one C-C double bond with hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent to give a product mixture P1 comprising alpha-hydroperoxyalcohols; (ii) separating an epoxide formed in the reaction in step (i) and the unreacted organic compound having at least one C-C double bond from P1 or P1' to give a product mixture P2 or P2', where P2 comprises the alpha-hydroperoxyalcohols formed as by-product in the reaction in step (i) and P2' is largely free of alpha-hydroperoxyalcohols; (iii) treating P1 and/or P2 with at least one reducing agent so that the alpha-hydroperoxyalcohols are converted into corresponding glycols to give a product mixture P1' or P3.

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