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    Process for hydrogenating aromatic compounds and a catalyst for making such hydrogenation
    3.
    发明专利
    Process for hydrogenating aromatic compounds and a catalyst for making such hydrogenation 未知

    公开(公告)号：CZ293839B6

    公开(公告)日：2004-08-18

    申请号：CZ74198

    申请日：1996-09-11

    Applicant: BASF AG

    Inventor： RUTTER HEINZ DR ,  RUHL THOMAS DR ,  BREITSCHEIDEL BORIS DR ,  HENKELMANN JOCHEM DR ,  HENNE ANDREAS DR ,  WETTLING THOMAS DR

    IPC: B01J23/46 ,  B01J21/04 ,  B01J23/89 ,  B01J35/10 ,  C07B61/00 ,  C07C209/72 ,  C07C211/35

    Abstract: In the present invention, there is disclosed a process for catalytically hydrogenating aromatic compounds in which at least one amino group is bonded to an aromatic nucleus, which process comprises bringing at least one of said aromatic compounds as the reactant in a liquid phase into contact with free hydrogen in the presence of a carrier supported metal catalyst consisting essentially of ruthenium and optionally at least one additional metal of subgroup I, VII or VIII of the Periodic Table or mixtures thereof, said metal catalyst being applied to a carrier having a mean pore diameter of at least 0.1 micron and a surface area of not more than 15 me2/gram in an amount of from 0.01 to 30 percent by weight, based on the total weight of both the carrier and the applied metal, wherein the carrier is selected from the group consisting of active carbon, silicon carbide, alumina, silica, titanium dioxide, zirconium dioxide, magnesium dioxide, zinc oxide and mixtures thereof. Claimed are also the above-described catalyst and its use for hydrogenation of the aromatic compounds.

    5.
    发明专利
    未知

    公开(公告)号：ES2179801T3

    公开(公告)日：2003-02-01

    申请号：ES00111932

    申请日：2000-06-15

    Applicant: BASF AG

    Inventor： KRAMER ANDREAS DR ,  MELDER JOHANN-PETER DR ,  RUTTER HEINZ DR ,  RIEWE GUNTER ,  SIEGEL WOLFGANG DR ,  WEYER HANS-JURGEN DR

    IPC: C07D233/32 ,  C07D233/34 ,  C07D239/10

    Abstract: Formic acid-free N-alkyl-N'-methyl-alkylene ureas (I) are obtained from reaction mixtures obtained from the corresponding alkylene urea (II) and formaldehyde in presence of formic acid by supplying the mixture to the upper part of a distillation column, carrying out distillation under specific pressure and temperature conditions and recovering HCOOH-free (I) from the lower part of the column. Preparation of formic acid-free N-alkyl-N'-methyl-alkylene ureas of formula (I), by reacting the corresponding alkylene urea of formula (II) with monomeric or polymerized formaldehyde (HCHO) in presence of formic acid (HCOOH), involves supplying the reaction mixture containing (I) and HCOOH to the upper part of a distillation column, carrying out distillation without further additives and recovering HCOOH-free (I) from the lower part of the column. The pressure is in the upper part of the column is higher than that in the lower part by 10-100 (preferably 20-40) mbars and the temperature in the lower part of the column is higher than that in the upper part by 40-210 (preferably 80-150) degrees C. R1 = H or Me; R2 = H or 1-4C alkyl; x = 0 or 1.

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