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    COPRODUCTION OF 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE
    41.
    发明专利
    COPRODUCTION OF 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE 未知

    公开(公告)号：CA2251539A1

    公开(公告)日：1997-10-16

    申请号：CA2251539

    申请日：1997-04-04

    Applicant: BASF AG

    Inventor： FLICK KLEMENS ,  HARDER WOLFGANG ,  MELDER JOHANN-PETER ,  FISCHER ROLF ,  VOIT GUIDO ,  SCHNURR WERNER

    IPC: B01J25/02 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

    Abstract: The invention concerns a method of simultaneously producing 6aminocapronitrile (ACN) and hexamethylenediamine (HMD) by reacting adipodinitrile (ADN) with hydrogen in the presence of a catalyst containing nickel, at a temperature not below room temperature and at an elevated hydrogen partial pressure, optionally in the presence of a solvent. If the yield, based on the amount of ADN consumed, and/or the selectivity, based on the amount of ACN produced, drop(s) below a defined value, a) the reaction of ADN with hydrogen is interrupted by stopping the feed of ADN and, if present, also the solvent; b) the catalyst is treated with hydrogen at a temperature in the range 150 to 400 ~C, using a hydrogen pressure of 0.1 to 30 MPa and a treatment time of 2 to 48 h; and c) the hydrogenation is subsequently continued using the catalyst treated in stage (b).

    44.
    发明专利
    未知

    公开(公告)号：FI972762A

    公开(公告)日：1997-06-26

    申请号：FI972762

    申请日：1997-06-26

    Applicant: BASF AG

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

    IPC: B01J23/76 ,  B01J23/89 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24 ,  C07C

    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.

    Process for preparing aliphatic alpha,$g(v)-aminonitriles
    45.
    发明专利
    Process for preparing aliphatic alpha,$g(v)-aminonitriles 未知

    公开(公告)号：AU4386796A

    公开(公告)日：1996-07-19

    申请号：AU4386796

    申请日：1995-12-16

    Applicant: BASF AG

    Inventor： FLICK KLEMENS ,  EBEL KLAUS ,  SCHNURR WERNER ,  MELDER JOHANN-PETER ,  HARDER WOLFGANG

    IPC: B01J23/80 ,  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 in which the catalyst used is obtainable by thermal decomposition of a metal compound selected from the group consisting of metal carbonyl compounds, metal salts of C1-C6-carboxylic acids and C2-C6-dicarboxylic acids and metal complexes with diketones to give the corresponding metal and/or a metal oxide thereof, with the proviso that the metal used is nickel or cobalt.

    47.
    发明专利
    未知

    公开(公告)号：DE3775080D1

    公开(公告)日：1992-01-23

    申请号：DE3775080

    申请日：1987-01-23

    Applicant: BASF AG

    Inventor： HUTMACHER HANS-MARTIN ,  MERGER FRANZ ,  BROECKER FRANZ JOSEF ,  FISCHER ROLF ,  VAGT UWE ,  HARDER WOLFGANG ,  PRIESTER CLAUS-ULRICH ,  SCHNEIDER HEINZ-WALTER ,  RICHTER WOLFGANG

    IPC: B01J23/74 ,  B01J23/78 ,  B01J25/00 ,  C07B61/00 ,  C07D201/08

    Abstract: (i) 5-formyl-valeric acid ester is reacted with excess NH3 and H2, using alkanols as solvents, in the presence of hydrogenation catalysts, at 40-130 deg.C. (ii) NH3 and H2 are removed from the reaction mixt. obtd. (iii) The reaction mixt. is heated to 150-250 deg.C and caprolactam is recovered. (A) Catalysts are used which are prepd. by calcining cpds. having formula (I): ((MgaNi(II)bCo(II)c)Al2)CO3(OH)16 x 4 H2O (I) a = integer or decimal no. 0-4; b,c = integers or decimal nos. 0-6; provided that 2 x (a + b + c) = 2. at 200-600 deg.C and subsequent redn. with H2 at higher temp. (B) Ni catalysts can also be used contg. 30-60 wt.% finely-divided Ni pptd. on Mg silicate. (C) Raney-Ni or Raney-Co catalysts can be used in a suspension process. (D) The Raney-Ni or Raney-Co catalyst can be fixed magnetically or electro-magnetically in the reaction-zone.

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