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    155.
    发明专利
    未知

    公开(公告)号：DE59801520D1

    公开(公告)日：2001-10-25

    申请号：DE59801520

    申请日：1998-01-30

    Applicant: BASF AG

    Inventor： REHFINGER ALWIN ,  LUYKEN HERMANN

    IPC: C07D223/04 ,  C07C249/02 ,  C07C251/02 ,  C07C253/34 ,  C07C255/24

    Abstract: A process for distillative removal of 6-aminocapronitrile from mixtures (I) comprising 6-aminocapronitrile and an imine (II) comprises performing the distillation in a distillation column using an average mean residence time for the distillation mixture of at least 5 minutes on at least one level of the distillation column.

    156.
    发明专利
    未知

    公开(公告)号：DE59801387D1

    公开(公告)日：2001-10-11

    申请号：DE59801387

    申请日：1998-01-17

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  LUYKEN HERMANN ,  REHFINGER ALWIN ,  RUST HARALD

    IPC: C07C255/24 ,  C07C253/34

    Abstract: A process for distillative removal of 6-aminocapronitrile from mixtures (I) comprising 6-aminocapronitrile and an imine (II) comprises conducting the distillation in the presence of carbon dioxide.

    157.
    发明专利
    未知

    公开(公告)号：DE59703361D1

    公开(公告)日：2001-05-17

    申请号：DE59703361

    申请日：1997-08-21

    Applicant: BASF AG

    Inventor： VOIT GUIDO ,  FLICK KLEMENS ,  LUYKEN HERMANN ,  REHFINGER ALWIN ,  BASSLER PETER

    IPC: B01J23/78 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

    Abstract: PCT No. PCT/EP97/04542 Sec. 371 Date Mar. 10, 1999 Sec. 102(e) Date Mar. 10, 1999 PCT Filed Aug. 21, 1997 PCT Pub. No. WO98/11051 PCT Pub. Date Mar. 19, 1998A process for coproduction of 6-aminocapronitrile and hexamethylenediamine starting from a mixture comprising a phosphorus-containing compound and essentially adiponitrile and obtained by reaction of butadiene with hydrocyanic acid in the presence of a catalyst comprising a phosphorus-containing compound comprises (1) reducing the weight proportion of phosphorus-containing compound, calculated as phosphorus, in the mixture, (2) partially hydrogenating the resulting mixture in the presence of a catalyst to form an alpha , omega -aminonitrile, and (3) removing 6-aminocapronitrile and hexamethylenediamine from the mixture.

    158.
    发明专利
    未知

    公开(公告)号：BR9913191A

    公开(公告)日：2001-05-15

    申请号：BR9913191

    申请日：1999-08-17

    Applicant: BASF AG

    Inventor： FISCHER ROLF-HARTMUTH ,  BASSLER PETER ,  LUYKEN HERMANN ,  OHLBACH FRANK ,  MELDER JOHANN-PETER ,  MERGER MARTIN ,  ANSMANN ANDREAS ,  REHFINGER ALWIN ,  VOIT GUIDO

    IPC: C07B61/00 ,  C07C209/48 ,  C07C209/86 ,  C07C211/12

    Abstract: A process for catalytic hydrogenation of adiponitrile to hexamethylenediamine at elevated temperature and elevated pressure in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent comprisesa) hydrogenating adiponitrile at from 70 to 220° C. and from 100 to 400 bar in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent to obtain a mixture comprising adiponitrile,6-aminocapronitrile, hexamethylenediamine and high boilers until the sum total of the 6-aminocapronitrile concentration and the adiponitrile concentration is within the range from 1 to 50% by weight, based on the ammonia-free hydrogenation mixture,b) removing ammonia from the hydrogenation effluent,c) removing hexamethylenediamine from the remaining mixture,d) separating 6-aminocapronitrile and adiponitrile from high boilers individually or together, ande) returning 6-aminocapronitrile, adiponitrile or mixtures thereof into step a).

    159.
    发明专利
    未知

    公开(公告)号：DE59508153D1

    公开(公告)日：2000-05-11

    申请号：DE59508153

    申请日：1995-12-16

    Applicant: BASF AG

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

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

    Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal. with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

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