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    241.
    发明专利
    未知

    公开(公告)号：BR0110483A

    公开(公告)日：2003-04-08

    申请号：BR0110483

    申请日：2001-04-30

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  BAUMANN DIETER ,  FISCHER ROLF-HARTMUTH ,  FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  OHLBACH FRANK

    IPC: C07D223/12 ,  C07D201/08

    Abstract: A process for the preparation of caprolactam is provided, whereina) a mixture (I) containing 6-aminocapronitrile and water is reacted in the gas phase, in the presence of a catalyst, to give a mixture (II) containing caprolactam, ammonia, water, high-boiling components and low-boiling components,b) ammonia is then removed from the mixture (II) to give a mixture (III) containing caprolactam, water, high-boiling components and low-boiling components,c) water is then removed from the mixture (III) to give a mixture (IV) containing caprolactam, high-boiling components and low-boiling components, andd) a solid (V) containing caprolactam is then obtained from the mixture (IV) by crystallization, the proportion by weight of caprolactam in the solid (V) being greater than in the mixture (IV).

    METHOD FOR REGENERATING CATALYSTS
    242.
    发明专利
    METHOD FOR REGENERATING CATALYSTS 未知

    公开(公告)号：CA2422937A1

    公开(公告)日：2003-03-21

    申请号：CA2422937

    申请日：2001-09-20

    Applicant: BASF AG

    Inventor： OHLBACH FRANK ,  BASSLER PETER ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  MELDER JOHANN-PETER ,  FISCHER ROLF-HARTMUTH

    IPC: B01J23/86 ,  B01J23/94 ,  B01J38/52 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12

    Abstract: The invention relates to a method for regenerating a heterogeneous catalyst, which is used with hydrogen, in order to produce compounds containing NH2 groups by hydrogenating compounds that contain at least one unsaturated carb on- nitrogen bond. The inventive method is characterized in that: a) the supply of the compound to be hydrogenated is stopped, and; b) the heterogeneous cataly st or mixtures thereof is/are treated with a compound of formula (I) R1R2N-CO-R 3, whereby R1 represents hydrogen and C1-C4 alkyl, R2 and R3, independent of on e another, represent hydrogen and C1-C4 alkyl or, together, represent a C3-C6 alkylene group, under a pressure ranging from 0.1 to 30 MPa and at a temperature ranging from 100 to 300 ~C. The heterogeneous catalyst is treate d with said compound of formula (I) provided that this compound is liquid duri ng the treatment.

    245.
    发明专利
    未知

    公开(公告)号：ES2180323T3

    公开(公告)日：2003-02-01

    申请号：ES99942875

    申请日：1999-08-17

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASSLER PETER ,  FISCHER ROLF ,  MELDER JOHANN-PETER

    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).

    PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE
    246.
    发明专利
    PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE 未知

    公开(公告)号：CA2453988A1

    公开(公告)日：2003-01-30

    申请号：CA2453988

    申请日：2002-07-18

    Applicant: BASF AG

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

    IPC: C07D301/12

    Abstract: The invention relates to a method for producing propylene oxide, comprising at least the following steps: (a) propene is reacted with a hydroperoxide in a solvent in the presence of a zeolite catalyst, in order to obtain a mixture (G0), said mixture (G0) containing propylene oxide, solvent, non-reacted propene, non-reacted hydroperoxide and oxygen; (b) the propylene oxide is separated from the mixture (G0) in such a way that a mixture (G1) is obtaine d which comprises non-reacted propene and oxygen; (c) the mixture (G1) is brought into contact with a liquid medium containing at least solvent, in order to obtain the mixtures (G2) and (G3), said mixture (G3) containing a part of the non-reacted propene and oxygen, and said mixture (G2) containing the solvent and the rest of the propene, the separated mixture (G3) of non- reacted propene and oxygen having a ratio of oxygen to propene which renders the mixture (G3) non-inflammable, and the mixture (G2) supplying at least on e reaction between the propene and the hydroperoxide.

    248.
    发明专利
    未知

    公开(公告)号：ES2175789T3

    公开(公告)日：2002-11-16

    申请号：ES98947530

    申请日：1998-09-08

    Applicant: BASF AG

    Inventor： VOIT GUIDO ,  ANSMANN ANDREAS ,  FISCHER ROLF HARTMUTH ,  BASSLER PETER ,  LUYKEN HERMANN ,  MERGER MARTIN

    IPC: B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  B01J23/78 ,  C07C255/24 ,  C07C255/26

    Abstract: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and (C) to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

    METHOD FOR PRODUCING A POLYMER, USING CAPROLACTAM
    250.
    发明专利
    METHOD FOR PRODUCING A POLYMER, USING CAPROLACTAM 未知

    公开(公告)号：CA2407814A1

    公开(公告)日：2002-10-31

    申请号：CA2407814

    申请日：2001-04-30

    Applicant: BASF AG

    Inventor： MAIXNER STEFAN ,  ANSMANN ANDREAS ,  FISCHER ROLF-HARMUTH ,  BASSLER PETER ,  WINTERLING HELMUT ,  OHLBACH FRANK ,  LUYKEN HERMANN ,  MELDER JOHANN-PETER

    IPC: C08J5/18 ,  C08G69/04 ,  C08G69/14 ,  C08G69/16

    Abstract: The invention relates to a method for producing a polymer. Said method is characterized as follows: a) a mixture (I) containing 6-aminocapronitrile an d water is converted into a mixture (II) containing caprolactam, ammonia, wate r, high boilers and low boilers in the presence of a catalyst; then b) the ammonia is removed from mixture (II) to obtain a mixture (III) containing caprolactam, water, high boilers and low boilers; subsequently c) the water is completely or partially eliminated from mixture (III) to obtain a mixture (I V) containing caprolactam, high boilers and low boilers; and finally d) mixture (IV) is subjected to a polymerization reaction. The invention also relates t o a polymer obtained according to said method, to its use in the production of fibres, flat material and moulded bodies that are obtained using a polymer o f this type.

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