91.
    发明专利
    未知

    公开(公告)号:DE50211743D1

    公开(公告)日:2008-04-03

    申请号:DE50211743

    申请日:2002-07-30

    Applicant: BASF AG

    Abstract: A process for preparing propylene oxide comprises at least the following steps: (a) propene is reacted with hydrogen peroxide in a solvent in the presence of a suitable catalyst to give a mixture (M0) comprising propylene oxide, solvent, unreacted propene, unreacted hydrogen peroxide and oxygen, (b) the propylene oxide is separated off from the mixture (M0) so as to give a mixture (M1) comprising at least unreacted propene and oxygen, and (c) the mixture (M1) is utilized.

    METHOD FOR OBTAINING HEXAMETHYLENE DIAMINE FROM MIXTURES CONTAINING HEXAMETHYLENE DIAMNIE

    公开(公告)号:MY127867A

    公开(公告)日:2006-12-29

    申请号:MYPI9800479

    申请日:1998-02-06

    Applicant: BASF AG

    Abstract: A PROCESS FOR RECOVERING HEXAMETHYLENEDIAMINE (I) FROM A MIXTURE (II) COMPRISING (I)HEXAMETHYLENEDIAMINE,(III)HEXAMETHYLENEIMINE,(IV)A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-AMINOMETHYLCYCLOPENTYLAMINE AND 1, 2-DIAMINOCYCLOHEXANE, (V)AN IMINE,(VI)ADIPONITRILE AND 6-AMINOCAPRONITRILE COMPRISES DISTILLING (A)A MIXTURE (II) TO OBTAIN (A1) A LOW BOILING FRACTION COMPRISING ESSENTIALLY (III) ,(A2) A MEDIUM BOILING FRACTION (VII) COMPRISING (I), (IV) AND (V) , AND (A3) A HIGH BOILING FRACTION COMPRISING (V) AND (VI), (B) A MIXTURE (VII) TO OBTAIN (B1) AN OVERHEAD PRODUCT COMPRISING ESSENTIALLY (IV), AND (B2) A MIXTURE (VIII) COMPRISING (I) AND (V) AS BOTTOM PRODUCT, AND (C)A MIXTURE (VIII) TO OBTAIN (C1) (I) AS OVERHEAD PRODUCT, AND (C2) A BOTTOM PRODUCT COMPRISING THE ESSENTIAL PORTION OF (V).

    PROCESS FOR PREPARING ALIPHATIC ALPHA,OMEGA-AMINONITRILES

    公开(公告)号:HU223965B1

    公开(公告)日:2005-03-29

    申请号:HU9702137

    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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