14.
    发明专利
    未知

    公开(公告)号:DE102005012209A1

    公开(公告)日:2006-09-28

    申请号:DE102005012209

    申请日:2005-03-15

    Applicant: BASF AG

    Abstract: Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO2) and aluminum oxide (Al2O3), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of >110 mumol of CO/g of the catalyst.

    16.
    发明专利
    未知

    公开(公告)号:ES2207487T3

    公开(公告)日:2004-06-01

    申请号:ES00903595

    申请日:2000-01-20

    Applicant: BASF AG

    Abstract: A process for working up at least partially deactivated polymerization catalysts for the polymerization or copolymerization of THF which are contaminated with the products of the polymerization or copolymerization of THF comprises(a) in a first step, cleaning the polymerization catalyst by treatment with steam at from 80 to 250° C. and a pressure of from 0.5 to 40 bar and, preferably,(b) in a second step, regenerating the clean polymerization catalyst.

    METHOD FOR PRODUCING POLYTETRAHYDROFURANE WITH LOW COLOUR INDICES

    公开(公告)号:AU2003233338A1

    公开(公告)日:2003-12-12

    申请号:AU2003233338

    申请日:2003-05-19

    Applicant: BASF AG

    Abstract: The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

    18.
    发明专利
    未知

    公开(公告)号:DE10223067A1

    公开(公告)日:2003-12-11

    申请号:DE10223067

    申请日:2002-05-24

    Applicant: BASF AG

    Abstract: The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

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