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    182.
    发明专利
    未知

    公开(公告)号：DE59505564D1

    公开(公告)日：1999-05-12

    申请号：DE59505564

    申请日：1995-08-09

    Applicant: BASF AG

    Inventor： BECKER RAINER DR ,  MENGER VOLKMAR DR ,  REIF WOLFGANG DR ,  HENNE ANDREAS DR

    IPC: B01J23/88 ,  B01J21/06 ,  B01J23/755 ,  B01J37/03 ,  C07B61/00 ,  C07C209/16 ,  C07C211/09

    Abstract: Prepn. of a diamine (I) involves reacting an aminoalcohol (II) with ammonia or a prim. or sec. amine and hydrogen at 1-400 bars and 80-250 degrees C in presence of a catalyst (A) contg. the following oxygen-contg. metal cpds. in amts. (by wt.) 20-85% Zr cpd. (calculated as ZrO2), 1-30% Cu cpd. (calculated as CuO), 30-70% Ni cpd. (calculated as NiO), 0.1-5% cpd. of molybdenum (calculated as MoO3) and 0-10% cpds. of aluminium and/or manganese (calculated as Al2O3 or MnO2). Pref. (I) is NR R -Y-NR R , (II) is HO-Y-NR R and (III) is NHR R . R , R = 1-20C alkyl, 3-12C cycloalkyl, aryl, 7-20C aralkyl or 7-20C alkaryl; or R +R = (CH2)m-X-(CH2)n; R , R = H or as R , R ; X = O, CH2 or NR ; R = 1-20C alkyl, 3-12C cycloalkyl, aryl, 7-20C aralkyl or 7-20C alkaryl; Y = 2-12C alkylene chain, opt. substd. by 1-5 1-4C alkyl.

    185.
    发明专利
    未知

    公开(公告)号：DE19715831A1

    公开(公告)日：1998-10-22

    申请号：DE19715831

    申请日：1997-04-16

    Applicant: BASF AG

    Inventor： BECKER RAINER DR ,  ELLER KARSTEN DR ,  HESSE MICHAEL DR

    IPC: C08G65/20 ,  C08G65/30

    Abstract: The invention relates to a method for decoloring polymers or copolymers obtained by cationic polymerisation of tetrahydrofuran or tetrahydrofuran and alkylene oxide, optionally in the presence of a telogen, wherein a) the low boiling parts are initially separated by vacuum distillation or extraction and b) the remaining polymer or copolymer is heated to a temperature of 20-150 DEG C in the presence of at least one auxiliary agent selected from solid oxides and/or phyllosilicates.

    186.
    发明专利
    未知

    公开(公告)号：DE19713383A1

    公开(公告)日：1998-10-08

    申请号：DE19713383

    申请日：1997-04-01

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  BREITSCHEIDEL BORIS DR ,  BECKER RAINER DR ,  NEUHAUSER HORST DR

    IPC: B01J23/44 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C213/02 ,  C07C215/08 ,  C07C211/08 ,  C07C209/22 ,  C07B43/04 ,  B01J23/38 ,  B01J23/70

    Abstract: Preparation of mono- or polyfunctional tertiary amines of formula X(CH2NR1R2)n (I) involves reacting a nitrile of formula (R1R2NCH2)n-mX(CN)m (II) with a secondary amine of formula NHR1R2 (III) and hydrogen. The reaction is at 50-250 degrees C and 5-350 bars, in presence of a palladium-based catalyst (IV), comprising (based on total catalyst) 0.1-10 wt.% palladium and 0.01-10 wt.% of at least one other metal, selected from Group IB and VIII elements, cerium and lanthanum, on a carrier. In (I)-(III), R1, R2 = 1-20C alkyl, 3-8C cycloalkyl, 4-20C alkylcycloalkyl, 4-20C cycloalkylalkyl, aryl, 7-20C alkaryl, 7-20C aralkyl, 2-8C hydroxyalkyl, 2-8C mercaptoalkyl or 8-20C aryloxyalkyl; or R1 + R2 = optionally unsaturated 2-6C alkylene chain (optionally substituted by 1-3 1-4C alkyl and optionally interrupted by O); X = n-valent 1-20C alkyl, 2-20C alkenyl or 3-8C cycloalkyl group (optionally substituted by 1-20C alkyl, 3-8C cycloalkyl, 4-20C alkylcycloalkyl, 4-20C cycloalkylalkyl, 2-20C alkoxyalkyl, aryl, 7-20C alkaryl, 7-20C aralkyl, 1-20C alkoxy, OH, 1-20C hydroxyalkyl, 1-20C alkylamino, 2-20C dialkylamino, 2-12C alkenylamino, 3-8C cycloalkylamino, arylamino, diarylamino, aryl-(1-8C)alkylamino, halo, SH, 2-20C alkenyloxy, 3-8C cycloalkoxy, aryloxy or 2-8C alkoxycarbonyl); n = 1-4; and m = 1 to n. Also claimed is the use of (IV) as catalyst for the reaction of secondary amines with nitriles and hydrogen to give tertiary amines in general.

    188.
    发明专利
    未知

    公开(公告)号：DE19641707A1

    公开(公告)日：1998-04-16

    申请号：DE19641707

    申请日：1996-10-10

    Applicant: BASF AG

    Inventor： BECKER RAINER DR ,  BROECKER FRANZ JOSEF DR ,  KAIBEL GERD DR ,  PINKOS ROLF DR ,  WULFF-DOERING JOACHIM DR

    IPC: B01J25/02 ,  B01J8/02 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C29/17 ,  C07C31/20

    Abstract: The invention concerns a process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butinediol in that 1,4-butinediol is reacted with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydrogenation catalyst at temperatures of between 20 and 300 DEG C, a pressure of between 1 and 200 bar and values of the liquid-side mass transfer coefficients kLa, relative to the volume, of between 0.1 s and 1s , a) with a catalyst suspended in the reaction medium, wherein, when a packed bubble column is used, it is operated in the upwards mode and at a ratio of the amount of gas leaving the reaction vessel to the amount fed thereto of between 0.99:1 and 0.4:1, or b) is guided upwards in parallel flow through a fixed bed reactor operated in the circulating gas mode, the ratio between the amount of gas fed to the reaction vessel and the amount of gas leaving the latter being maintained between 0.99:1 and 0.4:1.

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