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    21.
    发明专利
    未知

    公开(公告)号：DE19517823A1

    公开(公告)日：1996-11-21

    申请号：DE19517823

    申请日：1995-05-18

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  MELDER JOHANN-PETER DR ,  SCHNURR WERNER DR ,  FISCHER ROLF DR

    IPC: C07D201/08 ,  C07D223/12 ,  C07D223/10

    Abstract: The production of caprolactam by reacting 6-amino capronitrile with water in the presence of catalysts, using an initial mixture of 6-amino capronitrile and the tetrahydroazepine derivative of formula (I), and reaction in the liquid phase in the presence of heterogeneous catalysts, and a process for producing tetrahydroazepine derivative (I) and its use for making caprolactam and polycaprolactam.

    22.
    发明专利
    未知

    公开(公告)号：DE4446894A1

    公开(公告)日：1996-07-04

    申请号：DE4446894

    申请日：1994-12-27

    Applicant: BASF AG

    Inventor： SCHNURR WERNER DR ,  FISCHER ROLF DR ,  BASLER PETER DR ,  HARDER WOLFGANG DR

    IPC: 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 base and of a hydrogenation catalyst, by carrying out the hydrogenation in the presence of ammonia and lithium hydroxide or of a compound which gives lithium hydroxide during the hydrogenation.

    23.
    发明专利
    未知

    公开(公告)号：DE4446893A1

    公开(公告)日：1996-07-04

    申请号：DE4446893

    申请日：1994-12-27

    Applicant: BASF AG

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

    IPC: B01J23/76 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24 ,  B01J23/89 ,  C07B43/04

    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.

    24.
    发明专利
    未知

    公开(公告)号：DE59205953D1

    公开(公告)日：1996-05-15

    申请号：DE59205953

    申请日：1992-10-15

    Applicant: BASF AG

    Inventor： PINKOS ROLF DR ,  FISCHER ROLF DR

    IPC: C07B61/00 ,  B01J29/90 ,  C07C29/04 ,  C07C35/08

    Abstract: Process for the preparation of cycloalkanols by reacting cycloolefins with water in the presence of solid, acidic catalysts at a temperature from 50 to 280 DEG C under superatmospheric pressure, with the proviso that the pressure and temperature conditions suffice for the formation of a liquid phase of water and cycloolefins, characterised in that a mixture of water and cycloolefin is passed through a layer of solid, acidic catalysts which is held in a fixed position, with the proviso that no visible liquid phase is formed in this layer.

    26.
    发明专利
    未知

    公开(公告)号：DE4339269A1

    公开(公告)日：1995-05-24

    申请号：DE4339269

    申请日：1993-11-18

    Applicant: BASF AG

    Inventor： PINKOS ROLF DR ,  FISCHER ROLF DR

    IPC: C07D307/33 ,  B01J23/36 ,  B01J23/656 ,  B01J23/72 ,  B01J23/86 ,  C07B61/00 ,  C07D307/32 ,  C07D315/00 ,  B01J23/64

    Abstract: PCT No. PCT/EP94/03683 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 9, 1994 PCT Pub. No. WO95/14010 PCT Pub. Date May 26, 1995A process for the preparation of gamma -butyrolactone, in which 2,5-dihydrofuran or 2,3-dihydrofuran or a mixture of these two dihydrofurans is caused to react in the gas phase in the presence of water and in the presence or absence of additional hydrogen at elevated temperature over a hydrogenating catalyst.

    29.
    发明专利
    未知

    公开(公告)号：ES2063090T3

    公开(公告)日：1995-01-01

    申请号：ES89115357

    申请日：1989-08-19

    Applicant: BASF AG

    Inventor： GOSCH HANS-JUERGEN DR ,  FISCHER ROLF DR

    IPC: C07C29/04 ,  C07C27/00 ,  C07C29/86 ,  C07C35/08 ,  C07C67/00

    Abstract: Process for the separation of cyclohexanol by extraction from aqueous solutions containing this and aromatic sulphonic acids, characterised in that mixtures of a) at least one liquid aliphatic, cycloaliphatic or aromatic hydrocarbon, halchlorohydrocarbon or ether, which is inert under the extraction conditions and b) at least one phenol are used as extracting agents.

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