11.
    发明专利
    未知

    公开(公告)号:AT359989T

    公开(公告)日:2007-05-15

    申请号:AT02027069

    申请日:2002-12-03

    Applicant: BASF AG

    Abstract: Selective hydrogenation of alpha , beta -ethylenically unsaturated aldehydes (II) to corresponding unsaturated alcohols (I) comprises performing reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase, The liquid phase and gas phase (if present) are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. Selective hydrogenation of unsaturated aldehydes of formula R R C=CR -CHO (II) to corresponding alcohols of formula R R C=CR -CH2OH (I) comprises performing the reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase. The liquid phase and optionally the gas phase are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. R , R = H, optionally substituted mono- or polyunsaturated 1-20C alkyl (sic; some of the groups exemplified in the disclosure are saturated), optionally substituted aryl or optionally substituted heterocyclyl; R = H or 1-4C alkyl.

    12.
    发明专利
    未知

    公开(公告)号:AT272604T

    公开(公告)日:2004-08-15

    申请号:AT01119685

    申请日:2001-08-23

    Applicant: BASF AG

    Abstract: A method for the nitration of aromatic hydrocarbons (I) by liquid-phase reaction with a nitrogen oxide (NO, N2O3, NO2 or N2O4) and an oxygen-containing gas stream in presence of a heterogeneous oxide catalyst, in which the reaction is started in presence of at least 0.1 mol% water (based on I).

    PROCESS FOR PREPARING ALIPHATIC ALPHA, OMEGA AMINONITROLES

    公开(公告)号:CZ197697A3

    公开(公告)日:1998-03-18

    申请号:CZ197697

    申请日:1995-12-16

    Applicant: BASF AG

    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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