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    PROCESS OF SIMULTANEOUS PREPARATION OF CAPROLACTAM AND HEXAMETHYLENEDIAMINE
    34.
    发明专利
    PROCESS OF SIMULTANEOUS PREPARATION OF CAPROLACTAM AND HEXAMETHYLENEDIAMINE 未知

    公开(公告)号：CZ202797A3

    公开(公告)日：1998-02-18

    申请号：CZ202797

    申请日：1995-12-22

    Applicant: BASF AG

    Inventor： ACHHAMMER GUNTER DR ,  BASSLER PETER DR ,  FISCHER ROLF DR ,  FUCHS EBERHARD DR ,  LUYKEN HERMANN ,  SCHNURR WERNER DR ,  WITZEL TOM DR

    IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10

    Abstract: The invention concerns the simultaneous preparation of caprolactam and hexamethylene diamine from adipodinitrile, by the following steps: (a) the adipodinitrile is partially hydrogenated, producing a mixture substantially containing 6-aminocapronitrile, hexamethylene diamine, ammonia, adipodinitrile and hexamethylene imine (= "the mixture"); (b) the mixture obtained in step (a) is distilled, producing ammonia, as the forerunnings, and a residue I, in the presence of a compound A which is inert in the distillation conditions, the ammonia not being separated totally; (c) the residue I, substantially containing "the mixture", inert compound A and ammonia, the ammonia content being less than that of the mixture used in step (b), is subjected to a second distillation, producing a mixture of the inert compound A and ammonia, as the forerunnings, and a residue II; (d) the base II, substantially containing "the mixture" and inert compound A, is subjected to distillation in a third column, producing the inert compound A, as the forerunnings, and a residue III; (e) the base III, substantially containing "the mixture" and optionally an inert compound B, is subjected to distillation in a fourth column, producing forerunnings KP1, which substantially contain hexamethylene imine, optionally inert compound B and hexamethylene diamine, and a residue IV; (f) the forerunnings KP1 are subjected in a fifth column to distillation, producing forerunnings KP2, which substantially contain hexamethylene imine and optionally inert compound B, and a residue V, which substantially contains hexamethylene diamine with a degree of purity of at least 95 %, the forerunnings KP2 being fed to the third column or optionally only partially fed to the third column, and the rest being discarded; and (g) the residue IV, substantially containing 6-aminocapronitrile and adipodinitrile, is subjected in a sixth column to distillation, producing 6-aminocapronitrile with a degree of purity of at least 95 %, as forerunnings, and adiponitrile in the residue. The resultant 6-aminocapronitrile is cyclized to form caprolactam.

    35.
    发明专利
    未知

    公开(公告)号：DE19631522A1

    公开(公告)日：1998-02-05

    申请号：DE19631522

    申请日：1996-08-03

    Applicant: BASF AG

    Inventor： FISCHER ROLF DR ,  PACIELLO ROCCO DR ,  ROEPER MICHAEL PROF DR ,  SCHNURR WERNER DR

    IPC: B01J23/44 ,  B01J23/46 ,  B01J23/75 ,  C07B61/00 ,  C07C209/48 ,  C07C209/60 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24 ,  C07C209/24

    Abstract: The invention concerns a process for preparing 6-aminocapronitrile or 6-aminocapronitrile-hexamethylene diamine mixtures by: a) reacting 5-formylvaleronitrile with ammonia and hydrogen in the presence of hydrogenation catalysts selected from the group comprising metals or metal compounds of rhenium, copper and elements of the eight subgroups, a hydrogenation discharge product being obtained; and b) extracting from the hydrogenation discharge product 6-aminocapronitrile and optionally hexamethylene diamine, provided that the hydrogenation catalyst does not contain copper, nickel or copper and nickel as its only components.

    40.
    发明专利
    未知

    公开(公告)号：DE19714015A1

    公开(公告)日：1998-10-08

    申请号：DE19714015

    申请日：1997-04-04

    Applicant: BASF AG

    Inventor： WEISS WOLFRAM DR ,  NIESSNER MANFRED DR ,  SCHNURR WERNER DR ,  FISCHER GERHARD DIPL ING

    IPC: H04N21/20 ,  C08J3/09 ,  C08L61/28 ,  G06F17/30 ,  C08L61/20 ,  C09D161/26 ,  C09D5/02

    Abstract: The invention relates to solutions of aminotriazine resins, the alkylol groups of which are etherized to at least 30mol % with a C1-C16 alkanol in a mono-C1-C4 alkylglycol of formula (I): R -O-(R -O-)w(R -O-)x(R -O-)y(R -O-)zH, in which R stands for C1-C4 alkyl, R2 for CH2-CH2 and R for (a) and w, x, y, z stand for a whole number from 0 to 10, whereby at least one of the variables w, x, y, z is not equal to 0, or in a solvent mixture consisting to at least 20 wt.% of a mono-C1-C4 alkylglycol of the afore-cited formula.

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