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    METHOD OF SIMULTANEOUSLY PREPARING CAPROLACTAM AND HEXAMETHYLENE DIAMINE
    85.
    发明专利
    METHOD OF SIMULTANEOUSLY PREPARING CAPROLACTAM AND HEXAMETHYLENE DIAMINE 未知

    公开(公告)号：SK84297A3

    公开(公告)日：1998-03-04

    申请号：SK84297

    申请日：1995-12-22

    Applicant: BASF AG

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

    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.

    METHOD OF SIMULTANEOUSLY PREPARING CAPROLACTAM AND HEXAMETHYLENE DIAMINE
    86.
    发明专利
    METHOD OF SIMULTANEOUSLY PREPARING CAPROLACTAM AND HEXAMETHYLENE DIAMINE 未知

    公开(公告)号：BG101661A

    公开(公告)日：1998-02-27

    申请号：BG10166197

    申请日：1997-06-24

    Applicant: BASF AG

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

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

    Abstract: The invention concerns the simultaneous preparation ofcaprolactam and hexamethylene diamine from adipodinitrile, by thefollowing steps: (a) the adipodinitrile is partially hydrogenated,producing a mixture substantially containing 6-aminocapronitrile,hexamethylene diamine, ammonia, adipodinitrile and hexamethyleneimine ( "the mixture"); (b) the mixture obtained in step (a) isdistilled, producing ammonia, as the forerunnings, and a residueI, in the presence of a compound A which is inert in thedistillation conditions, the ammonia not being separated totally;(c) the residue I, substantially containing 'the mixture", inertcompound A and ammonia, the ammonia content being less than thatof the mixture used in step (b), is subjected to a seconddistillation, producing a mixture of the inert compound A andammonia, as the forerunnings, and a residue II; (d) the base II,substantially containing "the mixture" and inert compound A, issubjected to distillation in a third column, producing the inertcompound A, as the forerunnings, and a residue III; (e) the baseIII, substantially containing "the mixture" and optionally aninert compound B, is subjected to distillation in a fourth column,producing forerunnings KP, which substantially containhexamethylene imine, optionally inert compound B and hexamethylenediamine, and a residue IV; (f) the forerunnings KP are subjectedin a fifth column to distillation, producing forerunnings KP2,which substantially contain hexamethylene imine and optionallyinert compound B, and a residue V, which substantially containshexamethylene diamine with a degree of purity of at least 95 %,the forerunnings KP2 being fed to the third column or optionallyonly partially fed to the third column, and the rest beingdiscarded; and (g) the residue IV, substantially containing6-aminocapronitrile and adipodinitrile, is subjected in a sixthcolumn to distillation, producing 6-aminocapronitrile with adegree of purity of at least 95 %, as forerunnings, andadiponitrile in the residue. The resultant 6-aminocapronitrile iscyclized to form caprolactam.

    METHOD FOR THE PREPARATION OF ALIPHATIC ALPHA, OMEGA AMINONITRILES
    87.
    发明专利
    METHOD FOR THE PREPARATION OF ALIPHATIC ALPHA, OMEGA AMINONITRILES 未知

    公开(公告)号：BG101631A

    公开(公告)日：1998-02-27

    申请号：BG10163197

    申请日：1997-06-17

    Applicant: BASF AG

    Inventor： MELDER JLHANN-PETER ,  SCHNURR WERNER ,  FLICK KLEMENS ,  EBEL KLAUS ,  WITZEL TOM ,  FISCHER ROLF ,  HARDER WOLFGANG ,  REHFINGER ALWIN

    IPC: B01J23/89 ,  B01J23/76 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24

    Abstract: The invention relates to the preparation of aliphatic-aminonitriles by partial hydrogenation of aliphatic dinitriles atelevated temperature and higher pressure, in the presence of asolvent and catalyst. Catalyst, containing the following is used:(a) compound based on metal, e.g. nickel, cobalt, iron, rutheniumand rhodium; (b) from 0.01 to 25 wt.% promotor to component (a)based on metal such as palladium, platinum, iridium, osmium,copper, silver, gold, chromium, molybdenum, tungsten, manganese,rhenium, zinc, cadmium, lead, aluminium, tin, phosphorus, arsenic,antimony, bismith, silicon, titanium, zirconium and the rare earthelements, and (c) from 0 to 5 wt.% compound to component (a) basedon alkali or alkaliearth metal, provided that component (a) isdifferent from an iron-based compound or from iron, as well asfrom the metals cobalt, ruthenium or rhodium when component (b) ispromotor based on a metal from the group containing titanium,managanese, chromium and molybdenum. An additional condition isthat when component (a) is a compound based on ruthenium orrhodium separately, or of ruthenium and rhodium, or of nickel andrhodium, promotor (b) can optionally be dropped.

    Manufacturing process for 6-aminocapronitrile
    88.
    发明专利
    Manufacturing process for 6-aminocapronitrile 未知

    公开(公告)号：AU4377697A

    公开(公告)日：1998-02-25

    申请号：AU4377697

    申请日：1997-07-23

    Applicant: BASF AG

    Inventor： FISCHER ROLF ,  PACIELLO ROCCO ,  ROPER MICHAEL ,  SCHNURR WERNER

    IPC: B01J31/18 ,  B01J31/24 ,  C07C209/26 ,  C07C253/30 ,  C07C255/24 ,  C07F9/6574

    Abstract: PCT No. PCT/EP97/03988 Sec. 371 Date Feb. 1, 1999 Sec. 102(e) Date Feb. 1, 1999 PCT Filed Jul. 23, 1997 PCT Pub. No. WO98/05632 PCT Pub. Date Feb. 12, 1998Manufacture of 6-aminocapronitrile or 6-aminocapronitrile/hexamethylene diamine mixtures, involving a) the reaction of at least one pentennitrile, selected from the group consisting of 2,3 and 4-pentennitrile with carbon monoxide and hydrogen in the presence of catalysts, which contain at least one element of the eighth subgroup as active components, obtaining a hydrogenation formylating discharge (I), b) the optional separation of carbon monoxide, hydrogen and the catalyst from the hydrogenation formylating discharge (I), obtaining a hydrogenation formylating discharge (II), c) the separation of 5-formyl valeronitrile from the hydrogenation formylating discharge (I) or (II), d) the reaction of separated 5-formyl valeronitrile with ammonia and hydrogen in the presence of hydrogenating catalysts, selected from the group consisting of rhenium, copper and its compounds as well as metals and metallic compounds of the eighth group, obtaining a hydrogenation discharge, and e) obtaining 6-aminocapronitrile and if necessary hexamethylene diamine.

    PROCESS FOR PRODUCING AMINES AND AMINO NITRILES
    90.
    发明专利
    PROCESS FOR PRODUCING AMINES AND AMINO NITRILES 未知

    公开(公告)号：CA2261614A1

    公开(公告)日：1998-02-05

    申请号：CA2261614

    申请日：1997-07-29

    Applicant: BASF AG

    Inventor： FISCHER ROLF ,  FLICK KLEMENS ,  VOIT GUIDO ,  SCHNURR WERNER

    IPC: B01J23/78 ,  B01J23/94 ,  B01J27/187 ,  B01J27/28 ,  B01J38/10 ,  C07B43/04 ,  C07B61/00 ,  C07C20060101 ,  C07C209/48 ,  C07C209/52 ,  C07C211/12 ,  C07C211/35 ,  C07C253/30 ,  C07C255/24

    Abstract: The invention concerns the production of compounds containing NH2-groups by hydrogenating compounds containing at least one unsaturated carbon-nitrogen bond with hydrogen in the presence of a catalyst at temperatures not below room temperature and under increased hydrogen partial-pressure, preferably in the presence of a solvent, in which one (a) uses a cobalt and/or ironcontaining catalyst, and (b), after conversion of the compound to be hydrogenated and/or the selectivity of the product desired drops below a defined value, or after an increase in the quantity of an undesired by-product beyond a defined value, one breaks off the hydrogenation by stopping the supply of the compounds to be hydrogenated and, if desired, of any solvents present, (c) one treats the catalyst with hydrogen at a temperature between 150 to 400 ~C and a hydrogen pressure between 0.1 to 30 MPa and selects a treatment time of 2 to 48 hours, and (d) one subsequently continues the hydrogenation of a least one compound containing an unsaturated carbonnitrogen bond as well as the regeneration of cobalt and/or iron-containing catalysts.

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